{
 "version": "2.2",
 "instance": {
  "d809051dncsrs.htm": {
   "nsprefix": "brighthouse",
   "nsuri": "http://brighthouse/20260630",
   "dts": {
    "schema": {
     "local": [
      "brighthouse-20260630.xsd"
     ],
     "remote": [
      "http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd",
      "http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd",
      "http://www.xbrl.org/2003/xl-2003-12-31.xsd",
      "http://www.xbrl.org/2003/xlink-2003-12-31.xsd",
      "http://www.xbrl.org/2005/xbrldt-2005.xsd",
      "http://www.xbrl.org/2006/ref-2006-02-27.xsd",
      "http://www.xbrl.org/lrr/arcrole/deprecated-2009-12-16.xsd",
      "http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd",
      "http://www.xbrl.org/lrr/role/reference-2009-12-16.xsd",
      "https://www.xbrl.org/2020/extensible-enumerations-2.0.xsd",
      "https://www.xbrl.org/dtr/type/2020-01-21/types.xsd",
      "https://www.xbrl.org/dtr/type/2022-03-31/types.xsd",
      "https://www.xbrl.org/dtr/type/2024-01-31/types.xsd",
      "https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd",
      "https://xbrl.fasb.org/srt/2025/elts/srt-roles-2025.xsd",
      "https://xbrl.fasb.org/srt/2025/elts/srt-types-2025.xsd",
      "https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd",
      "https://xbrl.fasb.org/us-gaap/2025/elts/us-roles-2025.xsd",
      "https://xbrl.fasb.org/us-gaap/2025/elts/us-types-2025.xsd",
      "https://xbrl.sec.gov/country/2025/country-2025.xsd",
      "https://xbrl.sec.gov/country/2025/country-2025_def.xsd",
      "https://xbrl.sec.gov/dei/2025/dei-2025.xsd",
      "https://xbrl.sec.gov/oef/2025/oef-2025.xsd",
      "https://xbrl.sec.gov/oef/2025/oef-2025_lab.xsd",
      "https://xbrl.sec.gov/oef/2025/oef-sr-2025.xsd",
      "https://xbrl.sec.gov/stpr/2025/stpr-2025.xsd"
     ]
    },
    "inline": {
     "local": [
      "d809051dncsrs.htm"
     ]
    }
   },
   "keyStandard": 28,
   "keyCustom": 0,
   "axisStandard": 6,
   "axisCustom": 0,
   "memberStandard": 37,
   "memberCustom": 549,
   "hidden": {
    "total": 97,
    "http://xbrl.sec.gov/dei/2025": 97
   },
   "contextCount": 2472,
   "entityCount": 1,
   "segmentCount": 586,
   "elementCount": 705,
   "unitCount": 3,
   "baseTaxonomies": {
    "http://xbrl.sec.gov/oef/2025": 3987,
    "http://fasb.org/us-gaap/2025": 182,
    "http://xbrl.sec.gov/dei/2025": 97
   },
   "report": {
    "R1": {
     "role": "http://xbrl.sec.gov/oef/role/NcsrCover",
     "longName": "030000 - Disclosure - Form N-CSR Cover",
     "shortName": "Form N-CSR Cover",
     "isDefault": "true",
     "groupType": "disclosure",
     "subGroupType": "",
     "menuCat": "Cover",
     "order": "1",
     "firstAnchor": null,
     "uniqueAnchor": null
    },
    "R2": {
     "role": "http://xbrl.sec.gov/oef/role/ShareholderReport",
     "longName": "030001 - Disclosure - Shareholder Report",
     "shortName": "Shareholder Report",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "",
     "menuCat": "Notes",
     "order": "2",
     "firstAnchor": {
      "contextRef": "From2026-01-01to2026-06-30",
      "name": "oef:ShareholderReportAnnualOrSemiAnnual",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "p",
       "div",
       "div",
       "div",
       "div",
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "d809051dncsrs.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "From2026-01-01to2026-06-30",
      "name": "oef:ShareholderReportAnnualOrSemiAnnual",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "p",
       "div",
       "div",
       "div",
       "div",
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "d809051dncsrs.htm",
      "first": true,
      "unique": true
     }
    },
    "R3": {
     "role": "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
     "longName": "040020 - Disclosure - Shareholder Report, Holdings (Details)",
     "shortName": "Shareholder Report, Holdings (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "3",
     "firstAnchor": {
      "contextRef": "AsOf2026-06-30_C000017775Member_TaiwanSemiconductorManufacturingCoLtdFR688910900CTIMember",
      "name": "oef:PctOfNav",
      "unitRef": "Pure",
      "xsiNil": "false",
      "lang": null,
      "decimals": "INF",
      "ancestors": [
       "div",
       "td",
       "tr",
       "tbody",
       "table",
       "div",
       "div",
       "div",
       "oef:LargestHoldingsTableTextBlock",
       "div",
       "div",
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "d809051dncsrs.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "AsOf2026-06-30_C000017775Member_TaiwanSemiconductorManufacturingCoLtdFR688910900CTIMember",
      "name": "oef:PctOfNav",
      "unitRef": "Pure",
      "xsiNil": "false",
      "lang": null,
      "decimals": "INF",
      "ancestors": [
       "div",
       "td",
       "tr",
       "tbody",
       "table",
       "div",
       "div",
       "div",
       "oef:LargestHoldingsTableTextBlock",
       "div",
       "div",
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "d809051dncsrs.htm",
      "first": true,
      "unique": true
     }
    }
   },
   "tag": {
    "brighthouse_ABInternationalBondPortfolioFR10923N821CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "ABInternationalBondPortfolioFR10923N821CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AB International Bond PortfolioFR_10923N821"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_ASMLHoldingNVFRACI02GTQ9CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "ASMLHoldingNVFRACI02GTQ9CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "ASML Holding NVFR_ACI02GTQ9"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_ATIIncFR01741R102CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "ATIIncFR01741R102CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "ATI, Inc.FR_01741R102"
       }
      }
     },
     "auth_ref": []
    },
    "country_AU": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/country/2025",
     "localname": "AU",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Australia"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AccelleronIndustriesAGFRBNM73Q900CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AccelleronIndustriesAGFRBNM73Q900CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Accelleron Industries AGFR_BNM73Q900"
       }
      }
     },
     "auth_ref": []
    },
    "oef_AccmVal": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "AccmVal",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Accumulated Value"
       }
      }
     },
     "auth_ref": [
      "r34"
     ]
    },
    "oef_AccountValueLineItems": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "AccountValueLineItems",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Account Value [Line Items]"
       }
      }
     },
     "auth_ref": [
      "r33"
     ]
    },
    "oef_AccountValueTable": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "AccountValueTable",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Account Value [Table]"
       }
      }
     },
     "auth_ref": [
      "r33"
     ]
    },
    "oef_AccountValueTableAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "AccountValueTableAbstract",
     "lang": {
      "en-us": {
       "role": {
        "label": "Account Value Table [Abstract]"
       }
      }
     },
     "auth_ref": [
      "r33"
     ]
    },
    "oef_AccountantChngDate": {
     "xbrltype": "dateItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "AccountantChngDate",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Accountant Change Date"
       }
      }
     },
     "auth_ref": [
      "r57"
     ]
    },
    "oef_AccountantChngDisagreementsTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "AccountantChngDisagreementsTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Accountant Change Disagreements [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r58"
     ]
    },
    "oef_AccountantChngStatementTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "AccountantChngStatementTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Accountant Change Statement [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r57"
     ]
    },
    "oef_AdditionalIndexAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "AdditionalIndexAxis",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Additional Index [Axis]"
       }
      }
     },
     "auth_ref": [
      "r33"
     ]
    },
    "oef_AdditionalIndexDomain": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "AdditionalIndexDomain",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Additional Index [Domain]"
       }
      }
     },
     "auth_ref": [
      "r33"
     ]
    },
    "oef_AddlFundStatisticsSignificanceOrLimitsTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "AddlFundStatisticsSignificanceOrLimitsTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Additional Fund Statistics Significance or Limits [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r47"
     ]
    },
    "oef_AddlFundStatisticsTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "AddlFundStatisticsTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Additional Fund Statistics [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r46"
     ]
    },
    "oef_AddlInfoEmail": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "AddlInfoEmail",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Additional Information Email"
       }
      }
     },
     "auth_ref": [
      "r25"
     ]
    },
    "oef_AddlInfoPhoneNumber": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "AddlInfoPhoneNumber",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Additional Information Phone Number"
       }
      }
     },
     "auth_ref": [
      "r25"
     ]
    },
    "oef_AddlInfoTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "AddlInfoTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Additional Information [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r23"
     ]
    },
    "oef_AddlInfoWebsite": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "AddlInfoWebsite",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Additional Information Website"
       }
      }
     },
     "auth_ref": [
      "r25"
     ]
    },
    "brighthouse_AdvancedEnergyIndustriesIncFR007973100CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AdvancedEnergyIndustriesIncFR007973100CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Advanced Energy Industries, Inc.FR_007973100"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AdvancedMicroDevicesIncFR007903107CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AdvancedMicroDevicesIncFR007903107CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Advanced Micro Devices, Inc.FR_007903107"
       }
      }
     },
     "auth_ref": []
    },
    "oef_AdvisoryFeesPaidAmt": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "AdvisoryFeesPaidAmt",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Advisory Fees Paid, Amount"
       }
      }
     },
     "auth_ref": [
      "r46"
     ]
    },
    "brighthouse_AlphabetIncFR02079K305CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AlphabetIncFR02079K305CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Alphabet, Inc.FR_02079K305"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AmazoncomIncFR023135106CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AmazoncomIncFR023135106CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Amazon.com, Inc.FR_023135106"
       }
      }
     },
     "auth_ref": []
    },
    "dei_AmendmentDescription": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2025",
     "localname": "AmendmentDescription",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/NcsrCover",
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Amendment Description",
        "documentation": "Description of changes contained within amended document."
       }
      }
     },
     "auth_ref": []
    },
    "dei_AmendmentFlag": {
     "xbrltype": "booleanItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2025",
     "localname": "AmendmentFlag",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/NcsrCover",
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Amendment Flag",
        "documentation": "Boolean flag that is true when the XBRL content amends previously-filed or accepted submission."
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AmericanStatesWaterCoFR029899101CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AmericanStatesWaterCoFR029899101CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "American States Water Co.FR_029899101"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AmerisBancorpFR03076K108CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AmerisBancorpFR03076K108CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Ameris BancorpFR_03076K108"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AnalogDevicesIncFR032654105CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AnalogDevicesIncFR032654105CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Analog Devices, Inc.FR_032654105"
       }
      }
     },
     "auth_ref": []
    },
    "oef_AnnlOrSemiAnnlStatementTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "AnnlOrSemiAnnlStatementTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Annual or Semi-Annual Statement [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r22"
     ]
    },
    "brighthouse_AppleIncFR037833100CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AppleIncFR037833100CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Apple, Inc.FR_037833100"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_ArcosaIncFR039653100CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "ArcosaIncFR039653100CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Arcosa, Inc.FR_039653100"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_ArganIncFR04010E109CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "ArganIncFR04010E109CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Argan, Inc.FR_04010E109"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetAgencySponsoredMortgageMinusBackedSecuritiesFR31371H2G2CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetAgencySponsoredMortgageMinusBackedSecuritiesFR31371H2G2CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetAgency Sponsored Mortgage-Backed SecuritiesFR_31371H2G2"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetAgencySponsoredMortgageMinusBackedSecuritiesFR3137B2JF8CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetAgencySponsoredMortgageMinusBackedSecuritiesFR3137B2JF8CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetAgency Sponsored Mortgage-Backed SecuritiesFR_3137B2JF8"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetAgencySponsoredMortgageMinusBackedSecuritiesFR31390MJS4CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetAgencySponsoredMortgageMinusBackedSecuritiesFR31390MJS4CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetAgency Sponsored Mortgage-Backed SecuritiesFR_31390MJS4"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetAgencySponsoredMortgageMinusBackedSecuritiesFR36290SEQ0CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetAgencySponsoredMortgageMinusBackedSecuritiesFR36290SEQ0CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetAgency Sponsored Mortgage-Backed SecuritiesFR_36290SEQ0"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetAgencySponsoredMortgageMinusBackedSecuritiesFR38378N3K7CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetAgencySponsoredMortgageMinusBackedSecuritiesFR38378N3K7CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetAgency Sponsored Mortgage-Backed SecuritiesFR_38378N3K7"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetAgencySponsoredMortgageMinusBackedSecuritiesFR38379RPH0CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetAgencySponsoredMortgageMinusBackedSecuritiesFR38379RPH0CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetAgency Sponsored Mortgage-Backed SecuritiesFR_38379RPH0"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetAssetMinusBackedSecuritiesFR47800DAD6CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetAssetMinusBackedSecuritiesFR47800DAD6CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetAsset-Backed SecuritiesFR_47800DAD6"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetAssetMinusBackedSecuritiesFR499169AD2CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetAssetMinusBackedSecuritiesFR499169AD2CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetAsset-Backed SecuritiesFR_499169AD2"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetAssetMinusBackedSecuritiesFR76110VSS8CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetAssetMinusBackedSecuritiesFR76110VSS8CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetAsset-Backed SecuritiesFR_76110VSS8"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetAssetMinusBackedSecuritiesFR86358LAA8CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetAssetMinusBackedSecuritiesFR86358LAA8CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetAsset-Backed SecuritiesFR_86358LAA8"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetCertificateofDepositFR90275DVQ038200002027Minus02Minus19CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetCertificateofDepositFR90275DVQ038200002027Minus02Minus19CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetCertificate of DepositFR_90275DVQ0_3.820000_2027-02-19"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetCommercialPaperFR55607LRK200000002027Minus04Minus19CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetCommercialPaperFR55607LRK200000002027Minus04Minus19CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetCommercial PaperFR_55607LRK2_0.000000_2027-04-19"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetCommonStocksFR05348Y105CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetCommonStocksFR05348Y105CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetCommon StocksFR_05348Y105"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetCommonStocksFR12572Q105CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetCommonStocksFR12572Q105CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetCommon StocksFR_12572Q105"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetCommonStocksFR165167735CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetCommonStocksFR165167735CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetCommon StocksFR_165167735"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetCommonStocksFRB1VKYN902CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetCommonStocksFRB1VKYN902CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetCommon StocksFR_B1VKYN902"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetConvertibleBondsFR428040DK2CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetConvertibleBondsFR428040DK2CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetConvertible BondsFR_428040DK2"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetConvertibleBondsFRACI37QCX9CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetConvertibleBondsFRACI37QCX9CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetConvertible BondsFR_ACI37QCX9"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetConvertiblePreferredStocksFR02079K602CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetConvertiblePreferredStocksFR02079K602CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetConvertible Preferred StocksFR_02079K602"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetConvertiblePreferredStocksFR949746804CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetConvertiblePreferredStocksFR949746804CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetConvertible Preferred StocksFR_949746804"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetCorporateBondsNotesFR20030NDU2CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetCorporateBondsNotesFR20030NDU2CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetCorporate Bonds &amp; NotesFR_20030NDU2"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetCorporateBondsNotesFR29441WAC9CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetCorporateBondsNotesFR29441WAC9CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetCorporate Bonds &amp; NotesFR_29441WAC9"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetCorporateBondsNotesFR571903BG7CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetCorporateBondsNotesFR571903BG7CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetCorporate Bonds &amp; NotesFR_571903BG7"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetCorporateBondsNotesFR59841RAA7CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetCorporateBondsNotesFR59841RAA7CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetCorporate Bonds &amp; NotesFR_59841RAA7"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetCorporateBondsNotesFR79588YAA7CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetCorporateBondsNotesFR79588YAA7CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetCorporate Bonds &amp; NotesFR_79588YAA7"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetCorporateBondsNotesFR88732JAJ7CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetCorporateBondsNotesFR88732JAJ7CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetCorporate Bonds &amp; NotesFR_88732JAJ7"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetFloatingRateLoansFR12768EAG1CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetFloatingRateLoansFR12768EAG1CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetFloating Rate LoansFR_12768EAG1"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetFloatingRateLoansFRBA000N675CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetFloatingRateLoansFRBA000N675CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetFloating Rate LoansFR_BA000N675"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetFloatingRateLoansFRBA000VVB0CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetFloatingRateLoansFRBA000VVB0CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetFloating Rate LoansFR_BA000VVB0"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetForeignGovernmentFR374422AL7CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetForeignGovernmentFR374422AL7CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetForeign GovernmentFR_374422AL7"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetForeignGovernmentFR46513EFG2CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetForeignGovernmentFR46513EFG2CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetForeign GovernmentFR_46513EFG2"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetForeignGovernmentFR715638AU6CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetForeignGovernmentFR715638AU6CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetForeign GovernmentFR_715638AU6"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetForeignGovernmentFR903724CD2CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetForeignGovernmentFR903724CD2CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetForeign GovernmentFR_903724CD2"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetForeignGovernmentFR91087BAR1CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetForeignGovernmentFR91087BAR1CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetForeign GovernmentFR_91087BAR1"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetMunicipalsFR13077DTS1CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetMunicipalsFR13077DTS1CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetMunicipalsFR_13077DTS1"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetMunicipalsFR167505NG7CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetMunicipalsFR167505NG7CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetMunicipalsFR_167505NG7"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetMunicipalsFR341271AF1CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetMunicipalsFR341271AF1CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetMunicipalsFR_341271AF1"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetMunicipalsFR59261A6J1CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetMunicipalsFR59261A6J1CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetMunicipalsFR_59261A6J1"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetNonMinusAgencyMortgageMinusBackedSecuritiesFR06540AAC5CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetNonMinusAgencyMortgageMinusBackedSecuritiesFR06540AAC5CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetNon-Agency Mortgage-Backed SecuritiesFR_06540AAC5"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetNonMinusAgencyMortgageMinusBackedSecuritiesFR08163VAC1CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetNonMinusAgencyMortgageMinusBackedSecuritiesFR08163VAC1CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetNon-Agency Mortgage-Backed SecuritiesFR_08163VAC1"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetNonMinusAgencyMortgageMinusBackedSecuritiesFR12636MAG3CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetNonMinusAgencyMortgageMinusBackedSecuritiesFR12636MAG3CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetNon-Agency Mortgage-Backed SecuritiesFR_12636MAG3"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetNonMinusAgencyMortgageMinusBackedSecuritiesFR46642NBF2CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetNonMinusAgencyMortgageMinusBackedSecuritiesFR46642NBF2CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetNon-Agency Mortgage-Backed SecuritiesFR_46642NBF2"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetNonMinusAgencyMortgageMinusBackedSecuritiesFR55265WDM2CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetNonMinusAgencyMortgageMinusBackedSecuritiesFR55265WDM2CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetNon-Agency Mortgage-Backed SecuritiesFR_55265WDM2"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetNonMinusAgencyMortgageMinusBackedSecuritiesFR78386KAA3CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetNonMinusAgencyMortgageMinusBackedSecuritiesFR78386KAA3CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetNon-Agency Mortgage-Backed SecuritiesFR_78386KAA3"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetPreferredStocksFR507670909CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetPreferredStocksFR507670909CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetPreferred StocksFR_507670909"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetPreferredStocksFR902BXJ909CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetPreferredStocksFR902BXJ909CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetPreferred StocksFR_902BXJ909"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetRepurchaseAgreementsFR03199U00936400002026Minus07Minus01CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetRepurchaseAgreementsFR03199U00936400002026Minus07Minus01CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetRepurchase AgreementsFR_03199U009_3.640000_2026-07-01"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetRightsFRACI30TT38CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetRightsFRACI30TT38CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetRightsFR_ACI30TT38"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetShortMinusTermInvestmentsFR85748R00925000002026Minus07Minus01CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetShortMinusTermInvestmentsFR85748R00925000002026Minus07Minus01CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetShort-Term InvestmentsFR_85748R009_2.500000_2026-07-01"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetShortMinusTermInvestmentsFR912797UP000100002026Minus07Minus14CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetShortMinusTermInvestmentsFR912797UP000100002026Minus07Minus14CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetShort-Term InvestmentsFR_912797UP0_0.010000_2026-07-14"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetTimeDepositsFRATD235ZX436700002026Minus07Minus01CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetTimeDepositsFRATD235ZX436700002026Minus07Minus01CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetTime DepositsFR_ATD235ZX4_3.670000_2026-07-01"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetUSTreasuryGovernmentAgenciesFR3133EMAG7CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetUSTreasuryGovernmentAgenciesFR3133EMAG7CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetU.S. Treasury &amp; Government AgenciesFR_3133EMAG7"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetUSTreasuryGovernmentAgenciesFR880591FB3CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetUSTreasuryGovernmentAgenciesFR880591FB3CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetU.S. Treasury &amp; Government AgenciesFR_880591FB3"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetUSTreasuryGovernmentAgenciesFR912810QB7CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetUSTreasuryGovernmentAgenciesFR912810QB7CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetU.S. Treasury &amp; Government AgenciesFR_912810QB7"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetUSTreasuryGovernmentAgenciesFR912810QS0CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetUSTreasuryGovernmentAgenciesFR912810QS0CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetU.S. Treasury &amp; Government AgenciesFR_912810QS0"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetUSTreasuryGovernmentAgenciesFR912810RK6CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetUSTreasuryGovernmentAgenciesFR912810RK6CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetU.S. Treasury &amp; Government AgenciesFR_912810RK6"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_AssetUSTreasuryGovernmentAgenciesFR91282CPZ8CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AssetUSTreasuryGovernmentAgenciesFR91282CPZ8CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetU.S. Treasury &amp; Government AgenciesFR_91282CPZ8"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_AssetsNet": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2025",
     "localname": "AssetsNet",
     "crdr": "debit",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AssetsNet",
        "documentation": "Amount of net assets (liabilities)."
       }
      }
     },
     "auth_ref": [
      "r0"
     ]
    },
    "brighthouse_AstraZenecaPLCFR098952906CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "AstraZenecaPLCFR098952906CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "AstraZeneca PLCFR_098952906"
       }
      }
     },
     "auth_ref": []
    },
    "oef_AverageAnnualReturnAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "AverageAnnualReturnAbstract",
     "lang": {
      "en-us": {
       "role": {
        "label": "Average Annual Return:"
       }
      }
     },
     "auth_ref": [
      "r61"
     ]
    },
    "oef_AverageAnnualReturnLineItems": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "AverageAnnualReturnLineItems",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Average Annual Return [Line Items]"
       }
      }
     },
     "auth_ref": [
      "r61"
     ]
    },
    "oef_AverageAnnualReturnTable": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "AverageAnnualReturnTable",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Average Annual Return [Table]"
       }
      }
     },
     "auth_ref": [
      "r61"
     ]
    },
    "oef_AvgAnnlRtrPct": {
     "xbrltype": "percentItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "AvgAnnlRtrPct",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Average Annual Return, Percent"
       }
      }
     },
     "auth_ref": [
      "r40"
     ]
    },
    "oef_AvgAnnlRtrTableTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "AvgAnnlRtrTableTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Average Annual Return [Table Text Block]"
       }
      }
     },
     "auth_ref": [
      "r40"
     ]
    },
    "brighthouse_BANKOFAMERICACORPFR06051GJA8CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "BANKOFAMERICACORPFR06051GJA8CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "BANK OF AMERICA CORPFR_06051GJA8"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_BANKOFMONTREALCHICAGOFR06370B6D139600002027Minus03Minus22CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "BANKOFMONTREALCHICAGOFR06370B6D139600002027Minus03Minus22CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "BANK OF MONTREAL CHICAGOFR_06370B6D1_3.960000_2027-03-22"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_BAWAGGroupAGFRBZ1GZ0908CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "BAWAGGroupAGFRBZ1GZ0908CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "BAWAG Group AGFR_BZ1GZ0908"
       }
      }
     },
     "auth_ref": []
    },
    "country_BM": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/country/2025",
     "localname": "BM",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Bermuda"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_BNPParibasSANewYorkNYFR05593DLV338000002026Minus07Minus13CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "BNPParibasSANewYorkNYFR05593DLV338000002026Minus07Minus13CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "BNP Paribas SA/New York NYFR_05593DLV3_3.800000_2026-07-13"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_BPPLCFR055622104CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "BPPLCFR055622104CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "BP PLCFR_055622104"
       }
      }
     },
     "auth_ref": []
    },
    "country_BR": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/country/2025",
     "localname": "BR",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Brazil"
       }
      }
     },
     "auth_ref": []
    },
    "country_BS": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/country/2025",
     "localname": "BS",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Bahamas"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_BXTrustFR05608BAN0CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "BXTrustFR05608BAN0CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "BX TrustFR_05608BAN0"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_BaillieGiffordInternationalStockPortfolioFR10923P107CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "BaillieGiffordInternationalStockPortfolioFR10923P107CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Baillie Gifford International Stock PortfolioFR_10923P107"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_BankofAmericaCorpFR060505104CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "BankofAmericaCorpFR060505104CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Bank of America Corp.FR_060505104"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_BankofAmericaNAFR03199U00936500002026Minus07Minus01CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "BankofAmericaNAFR03199U00936500002026Minus07Minus01CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Bank of America NAFR_03199U009_3.650000_2026-07-01"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_BectonDickinsonCoFR075887109CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "BectonDickinsonCoFR075887109CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Becton Dickinson &amp; Co.FR_075887109"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_BelFuseIncFR077347300CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "BelFuseIncFR077347300CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Bel Fuse, Inc.FR_077347300"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_BeldenIncFR077454106CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "BeldenIncFR077454106CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Belden, Inc.FR_077454106"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_BelimoHoldingAGFRACI1WXBL7CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "BelimoHoldingAGFRACI1WXBL7CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Belimo Holding AGFR_ACI1WXBL7"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_BlackRockBondIncomePortfolioFR10923P800CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "BlackRockBondIncomePortfolioFR10923P800CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "BlackRock Bond Income PortfolioFR_10923P800"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_BrightSpringHealthServicesIncFR10950A106CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "BrightSpringHealthServicesIncFR10950A106CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "BrightSpring Health Services, Inc.FR_10950A106"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_BrighthouseFranklinLowDurationTotalReturnPortfolioFR10923M476CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "BrighthouseFranklinLowDurationTotalReturnPortfolioFR10923M476CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Brighthouse/Franklin Low Duration Total Return PortfolioFR_10923M476"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_BrighthouseWellingtonCoreEquityOpportunitiesPortfolioFR10923R814CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "BrighthouseWellingtonCoreEquityOpportunitiesPortfolioFR10923R814CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Brighthouse/Wellington Core Equity Opportunities PortfolioFR_10923R814"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_BrighthouseWellingtonLargeCapResearchPortfolioFR10923N854CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "BrighthouseWellingtonLargeCapResearchPortfolioFR10923N854CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Brighthouse/Wellington Large Cap Research PortfolioFR_10923N854"
       }
      }
     },
     "auth_ref": []
    },
    "oef_BroadBasedIndexAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "BroadBasedIndexAxis",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Broad Based Index [Axis]"
       }
      }
     },
     "auth_ref": [
      "r33"
     ]
    },
    "oef_BroadBasedIndexDomain": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "BroadBasedIndexDomain",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Broad Based Index [Domain]"
       }
      }
     },
     "auth_ref": [
      "r33"
     ]
    },
    "brighthouse_BroadcomIncFR11135F101CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "BroadcomIncFR11135F101CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Broadcom, Inc.FR_11135F101"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017769Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017769Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017769"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017770Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017770Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017770"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017771Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017771Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017771"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017772Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017772Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017772"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017773Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017773Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017773"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017774Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017774Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017774"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017775Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017775Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017775"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017776Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017776Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017776"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017777Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017777Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017777"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017784Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017784Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017784"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017785Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017785Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017785"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017786Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017786Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017786"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017787Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017787Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017787"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017788Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017788Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017788"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017789Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017789Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017789"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017790Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017790Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017790"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017791Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017791Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017791"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017792Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017792Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017792"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017793Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017793Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017793"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017794Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017794Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017794"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017795Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017795Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017795"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017796Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017796Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017796"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017797Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017797Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017797"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017798Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017798Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017798"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017799Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017799Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017799"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017800Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017800Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017800"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017801Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017801Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017801"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017802Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017802Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017802"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017803Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017803Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017803"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017804Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017804Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017804"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017807Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017807Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017807"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017808Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017808Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017808"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017809Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017809Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017809"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017810Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017810Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017810"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017811Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017811Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017811"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017812Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017812Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017812"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017813Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017813Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017813"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017814Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017814Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017814"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017815Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017815Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017815"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017816Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017816Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017816"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017817Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017817Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017817"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017818Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017818Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017818"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017819Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017819Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017819"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017820Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017820Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017820"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017824Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017824Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017824"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017825Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017825Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017825"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017826Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017826Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017826"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017827Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017827Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017827"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017828Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017828Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017828"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017829Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017829Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017829"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017830Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017830Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017830"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017831Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017831Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017831"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017832Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017832Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017832"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017839Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017839Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017839"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017840Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017840Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017840"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017841Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017841Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017841"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017842Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017842Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017842"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017843Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017843Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017843"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017844Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017844Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017844"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017845Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017845Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017845"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017846Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017846Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017846"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017847Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017847Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017847"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017848Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017848Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017848"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017849Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017849Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017849"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017850Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017850Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017850"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017851Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017851Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017851"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017852Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017852Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017852"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017853Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017853Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017853"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017861Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017861Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017861"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017862Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017862Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017862"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017863Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017863Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017863"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017864Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017864Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017864"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017865Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017865Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017865"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017866Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017866Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017866"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017867Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017867Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017867"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017868Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017868Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017868"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000017869Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000017869Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000017869"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000030922Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000030922Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000030922"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000030927Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000030927Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000030927"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000069948Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000069948Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000069948"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000069949Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000069949Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000069949"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000069951Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000069951Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000069951"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000069952Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000069952Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000069952"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000075817Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000075817Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000075817"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000075818Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000075818Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000075818"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000075819Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000075819Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000075819"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000075820Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000075820Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000075820"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000075821Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000075821Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000075821"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000124380Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000124380Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000124380"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000150812Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000150812Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000150812"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_C000150813Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "C000150813Member",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "C000150813"
       }
      }
     },
     "auth_ref": []
    },
    "country_CA": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/country/2025",
     "localname": "CA",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Canada"
       }
      }
     },
     "auth_ref": []
    },
    "country_CH": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/country/2025",
     "localname": "CH",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Switzerland"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_CHSCOMMUNITYHEALTHSYSFR12543DBJ8CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "CHSCOMMUNITYHEALTHSYSFR12543DBJ8CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "CHS/COMMUNITY HEALTH SYSFR_12543DBJ8"
       }
      }
     },
     "auth_ref": []
    },
    "country_CM": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/country/2025",
     "localname": "CM",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Cameroon"
       }
      }
     },
     "auth_ref": []
    },
    "country_CN": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/country/2025",
     "localname": "CN",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "China"
       }
      }
     },
     "auth_ref": []
    },
    "country_CR": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/country/2025",
     "localname": "CR",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Costa Rica"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_CRHPLCFRG25508105CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "CRHPLCFRG25508105CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "CRH PLCFR_G25508105"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_CanadianNaturalResourcesLtdFR136385952CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "CanadianNaturalResourcesLtdFR136385952CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Canadian Natural Resources Ltd.FR_136385952"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_CarpenterTechnologyCorpFR144285103CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "CarpenterTechnologyCorpFR144285103CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Carpenter Technology Corp.FR_144285103"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_CaterpillarIncFR149123101CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "CaterpillarIncFR149123101CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Caterpillar, Inc.FR_149123101"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_CharlesSchwabCorpFR808513105CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "CharlesSchwabCorpFR808513105CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Charles Schwab Corp.FR_808513105"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_CignaGroupFR125523100CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "CignaGroupFR125523100CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Cigna GroupFR_125523100"
       }
      }
     },
     "auth_ref": []
    },
    "oef_ClassAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "ClassAxis",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Class [Axis]"
       }
      }
     },
     "auth_ref": [
      "r20"
     ]
    },
    "oef_ClassName": {
     "xbrltype": "securityTitleItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "ClassName",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Class Name"
       }
      }
     },
     "auth_ref": [
      "r25"
     ]
    },
    "brighthouse_CloudflareIncFR18915M107CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "CloudflareIncFR18915M107CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Cloudflare, Inc.FR_18915M107"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_CoherentCorpFR19247G107CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "CoherentCorpFR19247G107CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Coherent Corp.FR_19247G107"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_CommunityFinancialSystemIncFR203607106CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "CommunityFinancialSystemIncFR203607106CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Community Financial System, Inc.FR_203607106"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_CoreNaturalResourcesIncFR218937100CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "CoreNaturalResourcesIncFR218937100CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Core Natural Resources, Inc.FR_218937100"
       }
      }
     },
     "auth_ref": []
    },
    "dei_CoverAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2025",
     "localname": "CoverAbstract",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Cover page."
       }
      }
     },
     "auth_ref": []
    },
    "oef_CreditQualityAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "CreditQualityAxis",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Credit Quality [Axis]"
       }
      }
     },
     "auth_ref": [
      "r48"
     ]
    },
    "oef_CreditQualityDomain": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "CreditQualityDomain",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Credit Quality [Domain]"
       }
      }
     },
     "auth_ref": [
      "r48"
     ]
    },
    "oef_CreditQualityExplanationTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "CreditQualityExplanationTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Credit Quality Explanation [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r48"
     ]
    },
    "oef_CreditRatingsSelectionTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "CreditRatingsSelectionTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Credit Ratings Selection [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r48"
     ]
    },
    "brighthouse_CreditSuisseMortgageTrustFR12651QAU3CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "CreditSuisseMortgageTrustFR12651QAU3CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Credit Suisse Mortgage TrustFR_12651QAU3"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_CurtissMinusWrightCorpFR231561101CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "CurtissMinusWrightCorpFR231561101CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Curtiss-Wright Corp.FR_231561101"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_CytokineticsIncFR23282W605CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "CytokineticsIncFR23282W605CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Cytokinetics, Inc.FR_23282W605"
       }
      }
     },
     "auth_ref": []
    },
    "country_DE": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/country/2025",
     "localname": "DE",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Germany"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_DIAMONDBACKENERGYINCFR25278XAN9CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "DIAMONDBACKENERGYINCFR25278XAN9CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "DIAMONDBACK ENERGY INCFR_25278XAN9"
       }
      }
     },
     "auth_ref": []
    },
    "country_DK": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/country/2025",
     "localname": "DK",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Denmark"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_DSVASFRB1WT5G909CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "DSVASFRB1WT5G909CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "DSV ASFR_B1WT5G909"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_DatabricksIncFR956KCS006CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "DatabricksIncFR956KCS006CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Databricks, Inc.FR_956KCS006"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_DatadogIncFR23804L103CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "DatadogIncFR23804L103CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Datadog, Inc.FR_23804L103"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_DeutscheBoerseAGFR702196908CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "DeutscheBoerseAGFR702196908CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Deutsche Boerse AGFR_702196908"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_DexcomIncFR252131107CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "DexcomIncFR252131107CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Dexcom, Inc.FR_252131107"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_DiamondbackEnergyIncFR25278X109CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "DiamondbackEnergyIncFR25278X109CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Diamondback Energy, Inc.FR_25278X109"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_DiscoveryLtdFR617787908CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "DiscoveryLtdFR617787908CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Discovery Ltd.FR_617787908"
       }
      }
     },
     "auth_ref": []
    },
    "oef_DistOfCapitalTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "DistOfCapitalTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Distribution of Capital [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r42"
     ]
    },
    "dei_DocumentPeriodEndDate": {
     "xbrltype": "dateItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2025",
     "localname": "DocumentPeriodEndDate",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/NcsrCover",
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Document Period End Date",
        "documentation": "For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD."
       }
      }
     },
     "auth_ref": []
    },
    "dei_DocumentType": {
     "xbrltype": "submissionTypeItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2025",
     "localname": "DocumentType",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/NcsrCover",
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Document Type",
        "documentation": "The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'."
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_EQTCORPFR26884LBD0CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "EQTCORPFR26884LBD0CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EQT CORPFR_26884LBD0"
       }
      }
     },
     "auth_ref": []
    },
    "country_ES": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/country/2025",
     "localname": "ES",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Spain"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_ESCOTechnologiesIncFR296315104CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "ESCOTechnologiesIncFR296315104CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "ESCO Technologies, Inc.FR_296315104"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_EliLillyCoFR532457108CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "EliLillyCoFR532457108CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Eli Lilly &amp; Co.FR_532457108"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_EntegrisIncFR29362U104CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "EntegrisIncFR29362U104CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Entegris, Inc.FR_29362U104"
       }
      }
     },
     "auth_ref": []
    },
    "dei_EntityCentralIndexKey": {
     "xbrltype": "centralIndexKeyItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2025",
     "localname": "EntityCentralIndexKey",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/NcsrCover",
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Entity Central Index Key",
        "documentation": "A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK."
       }
      }
     },
     "auth_ref": [
      "r18"
     ]
    },
    "dei_EntityDomain": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2025",
     "localname": "EntityDomain",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Series",
        "documentation": "All the names of the entities being reported upon in a document. Any legal structure used to conduct activities or to hold assets. Some examples of such structures are corporations, partnerships, limited liability companies, grantor trusts, and other trusts. This item does not include business and geographical segments which are included in the geographical or business segments domains."
       }
      }
     },
     "auth_ref": []
    },
    "dei_EntityInvCompanyType": {
     "xbrltype": "invCompanyType",
     "nsuri": "http://xbrl.sec.gov/dei/2025",
     "localname": "EntityInvCompanyType",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/NcsrCover",
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Entity Investment Company Type",
        "documentation": "One of: N-1A (Mutual Fund), N-1 (Open-End Separate Account with No Variable Annuities), N-2 (Closed-End Investment Company), N-3 (Separate Account Registered as Open-End Management Investment Company), N-4 (Variable Annuity UIT Separate Account), N-5 (Small Business Investment Company), N-6 (Variable Life UIT Separate Account), S-1 or S-3 (Face Amount Certificate Company), S-6 (UIT, Non-Insurance Product)."
       }
      }
     },
     "auth_ref": [
      "r62"
     ]
    },
    "dei_EntityRegistrantName": {
     "xbrltype": "normalizedStringItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2025",
     "localname": "EntityRegistrantName",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/NcsrCover",
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Registrant Name",
        "documentation": "The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC."
       }
      }
     },
     "auth_ref": [
      "r18"
     ]
    },
    "brighthouse_EstablishmentLabsHoldingsIncFRG31249108CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "EstablishmentLabsHoldingsIncFRG31249108CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Establishment Labs Holdings, Inc.FR_G31249108"
       }
      }
     },
     "auth_ref": []
    },
    "oef_EtfDiscountNumDays": {
     "xbrltype": "integerItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "EtfDiscountNumDays",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "ETF Discount, Number of Days"
       }
      }
     },
     "auth_ref": [
      "r43"
     ]
    },
    "oef_EtfPastPerfTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "EtfPastPerfTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "ETF Past Performance [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r45"
     ]
    },
    "oef_EtfPremiumDiscountTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "EtfPremiumDiscountTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "ETF Premium Discount [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r43"
     ]
    },
    "oef_EtfPremiumNumDays": {
     "xbrltype": "integerItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "EtfPremiumNumDays",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "ETF Premium, Number of Days"
       }
      }
     },
     "auth_ref": [
      "r43"
     ]
    },
    "oef_EtfPurchaseExplanationTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "EtfPurchaseExplanationTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "ETF Purchase Explanation [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r44"
     ]
    },
    "brighthouse_ExpandEnergyCorpFR165167735CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "ExpandEnergyCorpFR165167735CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Expand Energy Corp.FR_165167735"
       }
      }
     },
     "auth_ref": []
    },
    "oef_ExpenseRatioPct": {
     "xbrltype": "percentItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "ExpenseRatioPct",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Expense Ratio, Percent"
       }
      }
     },
     "auth_ref": [
      "r28"
     ]
    },
    "oef_ExpensesExclExtraordinaryExpensesPct": {
     "xbrltype": "percentItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "ExpensesExclExtraordinaryExpensesPct",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Expenses Excluding Extraordinary Expenses, Percent"
       }
      }
     },
     "auth_ref": [
      "r31"
     ]
    },
    "oef_ExpensesPaidAmt": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "ExpensesPaidAmt",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Expenses Paid, Amount"
       }
      }
     },
     "auth_ref": [
      "r27"
     ]
    },
    "oef_ExpensesRepresentBothMasterAndFeeder": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "ExpensesRepresentBothMasterAndFeeder",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Expenses Represent Both Master and Feeder [Text]"
       }
      }
     },
     "auth_ref": [
      "r29",
      "r59"
     ]
    },
    "oef_ExpensesShortPeriodFnTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "ExpensesShortPeriodFnTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Expenses Short Period Footnote [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r30"
     ]
    },
    "oef_ExpensesTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "ExpensesTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Expenses [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r26"
     ]
    },
    "oef_ExposureBasisExplanationTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "ExposureBasisExplanationTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Exposure Basis Explanation [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r48"
     ]
    },
    "oef_ExtraordinaryExpensesFnTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "ExtraordinaryExpensesFnTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Extraordinary Expenses Footnote [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r31"
     ]
    },
    "brighthouse_ExtremeNetworksIncFR30226D106CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "ExtremeNetworksIncFR30226D106CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Extreme Networks, Inc.FR_30226D106"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_FEDERALFARMCREDITBANKFR3133ETNU7CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "FEDERALFARMCREDITBANKFR3133ETNU7CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "FEDERAL FARM CREDIT BANKFR_3133ETNU7"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_FEDERALHOMELOANBANKFR3130AQUT8CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "FEDERALHOMELOANBANKFR3130AQUT8CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "FEDERAL HOME LOAN BANKFR_3130AQUT8"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_FHLMCMultifamilyStructuredPassThroughCertsFR3137HDUV0CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "FHLMCMultifamilyStructuredPassThroughCertsFR3137HDUV0CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "FHLMC Multifamily Structured Pass Through Certs.FR_3137HDUV0"
       }
      }
     },
     "auth_ref": []
    },
    "country_FI": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/country/2025",
     "localname": "FI",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Finland"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_FIRSTQUANTUMMINERALSLFR335934AY1CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "FIRSTQUANTUMMINERALSLFR335934AY1CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "FIRST QUANTUM MINERALS LFR_335934AY1"
       }
      }
     },
     "auth_ref": []
    },
    "country_FR": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/country/2025",
     "localname": "FR",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "France"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_FREDDIEMACFR3128X9MG2CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "FREDDIEMACFR3128X9MG2CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "FREDDIE MACFR_3128X9MG2"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_FTAIAviationLtdFRG3730V105CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "FTAIAviationLtdFRG3730V105CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "FTAI Aviation Ltd.FR_G3730V105"
       }
      }
     },
     "auth_ref": []
    },
    "oef_FactorsAffectingPerfTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "FactorsAffectingPerfTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Factors Affecting Performance [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r32"
     ]
    },
    "brighthouse_FairIsaacCorpFR303250104CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "FairIsaacCorpFR303250104CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Fair Isaac Corp.FR_303250104"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_FannieMaeFR3140XCQ68CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "FannieMaeFR3140XCQ68CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Fannie MaeFR_3140XCQ68"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_FannieMaeFR3140XMV52CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "FannieMaeFR3140XMV52CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Fannie MaeFR_3140XMV52"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_FannieMaeFR3140XTDK4CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "FannieMaeFR3140XTDK4CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Fannie MaeFR_3140XTDK4"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_FannieMaeFR31418DYB2CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "FannieMaeFR31418DYB2CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Fannie MaeFR_31418DYB2"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_FannieMaeMinusCASFR20753WAE6CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "FannieMaeMinusCASFR20753WAE6CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Fannie Mae - CASFR_20753WAE6"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_FederalHomeLoanMortgageCorpFR3132DWA52CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "FederalHomeLoanMortgageCorpFR3132DWA52CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Federal Home Loan Mortgage Corp.FR_3132DWA52"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_FederalNationalMortgageAssociationFR3140XFK67CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "FederalNationalMortgageAssociationFR3140XFK67CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Federal National Mortgage AssociationFR_3140XFK67"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_FederalSignalCorpFR313855108CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "FederalSignalCorpFR313855108CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Federal Signal Corp.FR_313855108"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_FirstCashHoldingsIncFR33768G107CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "FirstCashHoldingsIncFR33768G107CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "FirstCash Holdings, Inc.FR_33768G107"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_FreddieMacFR3133B0SP9CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "FreddieMacFR3133B0SP9CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Freddie MacFR_3133B0SP9"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_FreddieMacFR3133KLTJ6CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "FreddieMacFR3133KLTJ6CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Freddie MacFR_3133KLTJ6"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_FreddieMacFR3137HKBM5CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "FreddieMacFR3137HKBM5CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Freddie MacFR_3137HKBM5"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_FreddieMacFR3142J6D91CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "FreddieMacFR3142J6D91CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Freddie MacFR_3142J6D91"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_FreddieMacMinusSTACRFR35564KJA8CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "FreddieMacMinusSTACRFR35564KJA8CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Freddie Mac - STACRFR_35564KJA8"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_FreddieMacMinusSTACRFR35564KLU1CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "FreddieMacMinusSTACRFR35564KLU1CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Freddie Mac - STACRFR_35564KLU1"
       }
      }
     },
     "auth_ref": []
    },
    "oef_FundName": {
     "xbrltype": "normalizedStringItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "FundName",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Fund Name"
       }
      }
     },
     "auth_ref": [
      "r21"
     ]
    },
    "country_GB": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/country/2025",
     "localname": "GB",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "United Kingdom"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_GOLDMANSACHSGROUPINCFR38141GB78CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "GOLDMANSACHSGROUPINCFR38141GB78CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "GOLDMAN SACHS GROUP INCFR_38141GB78"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_GarrettMotionIncFR366505105CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "GarrettMotionIncFR366505105CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Garrett Motion, Inc.FR_366505105"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_GatesIndustrialCorpPLCFRG39108108CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "GatesIndustrialCorpPLCFRG39108108CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Gates Industrial Corp. PLCFR_G39108108"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_GaztransportEtTechnigazSAFRACI07W296CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "GaztransportEtTechnigazSAFRACI07W296CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Gaztransport Et Technigaz SAFR_ACI07W296"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_GeneralElectricCoFR369604301CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "GeneralElectricCoFR369604301CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "General Electric Co.FR_369604301"
       }
      }
     },
     "auth_ref": []
    },
    "oef_GeographicRegionAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "GeographicRegionAxis",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Geographic Region [Axis]"
       }
      }
     },
     "auth_ref": [
      "r48"
     ]
    },
    "oef_GeographicRegionDomain": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "GeographicRegionDomain",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Geographic Region [Domain]"
       }
      }
     },
     "auth_ref": [
      "r48"
     ]
    },
    "brighthouse_GlencorePLCFRB4T3BW902CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "GlencorePLCFRB4T3BW902CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Glencore PLCFR_B4T3BW902"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_GlobeLifeIncFR37959E102CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "GlobeLifeIncFR37959E102CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Globe Life, Inc.FR_37959E102"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_GoldmanSachsGroupIncFR38141G104CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "GoldmanSachsGroupIncFR38141G104CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Goldman Sachs Group, Inc.FR_38141G104"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_GovernmentNationalMortgageAssociationFR21H052686CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "GovernmentNationalMortgageAssociationFR21H052686CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Government National Mortgage AssociationFR_21H052686"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_GovernmentNationalMortgageAssociationFR21H060671CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "GovernmentNationalMortgageAssociationFR21H060671CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Government National Mortgage AssociationFR_21H060671"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_GovernmentNationalMortgageAssociationFR36179V4W7CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "GovernmentNationalMortgageAssociationFR36179V4W7CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Government National Mortgage AssociationFR_36179V4W7"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_GovernmentNationalMortgageAssociationFR36179WXH6CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "GovernmentNationalMortgageAssociationFR36179WXH6CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Government National Mortgage AssociationFR_36179WXH6"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_GovernmentNationalMortgageAssociationFR36179X2K1CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "GovernmentNationalMortgageAssociationFR36179X2K1CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Government National Mortgage AssociationFR_36179X2K1"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_GovernmentNationalMortgageAssociationFR36179XHY5CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "GovernmentNationalMortgageAssociationFR36179XHY5CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Government National Mortgage AssociationFR_36179XHY5"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_GovernmentNationalMortgageAssociationFR3622AC5U0CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "GovernmentNationalMortgageAssociationFR3622AC5U0CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Government National Mortgage AssociationFR_3622AC5U0"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_GuernseyChannelIslandsCTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "GuernseyChannelIslandsCTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Guernsey, Channel Islands"
       }
      }
     },
     "auth_ref": []
    },
    "country_HK": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/country/2025",
     "localname": "HK",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Hong Kong"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_HSBCHoldingsPLCFR054052907CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "HSBCHoldingsPLCFR054052907CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "HSBC Holdings PLCFR_054052907"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_HaemoneticsCorpFR405024100CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "HaemoneticsCorpFR405024100CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Haemonetics Corp.FR_405024100"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_HarrisOakmarkInternationalPortfolioFR10923M732CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "HarrisOakmarkInternationalPortfolioFR10923M732CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Harris Oakmark International PortfolioFR_10923M732"
       }
      }
     },
     "auth_ref": []
    },
    "oef_HoldingsAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "HoldingsAbstract",
     "lang": {
      "en-us": {
       "role": {
        "label": "Holdings [Abstract]"
       }
      }
     },
     "auth_ref": [
      "r48"
     ]
    },
    "oef_HoldingsCount": {
     "xbrltype": "integerItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "HoldingsCount",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Holdings Count"
       }
      }
     },
     "auth_ref": [
      "r46"
     ]
    },
    "oef_HoldingsLineItems": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "HoldingsLineItems",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Holdings [Line Items]"
       }
      }
     },
     "auth_ref": [
      "r48"
     ]
    },
    "oef_HoldingsTable": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "HoldingsTable",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Holdings [Table]"
       }
      }
     },
     "auth_ref": [
      "r48"
     ]
    },
    "oef_HoldingsTableTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "HoldingsTableTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Holdings [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r48"
     ]
    },
    "brighthouse_HudbayMineralsIncFR443628102CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "HudbayMineralsIncFR443628102CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Hudbay Minerals, Inc.FR_443628102"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_Hut8CorpFR44812J104CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "Hut8CorpFR44812J104CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Hut 8 Corp.FR_44812J104"
       }
      }
     },
     "auth_ref": []
    },
    "country_IE": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/country/2025",
     "localname": "IE",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Ireland"
       }
      }
     },
     "auth_ref": []
    },
    "country_IL": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/country/2025",
     "localname": "IL",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Israel"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_INTLBKRECONDEVELOPFR459058KW2CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "INTLBKRECONDEVELOPFR459058KW2CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "INTL BK RECON &amp; DEVELOPFR_459058KW2"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_ISharesMSCIEAFEETFFR464287465CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "ISharesMSCIEAFEETFFR464287465CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "iShares MSCI EAFE ETFFR_464287465"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_ISharesRussell2000ETFFR464287655CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "ISharesRussell2000ETFFR464287655CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "iShares Russell 2000 ETFFR_464287655"
       }
      }
     },
     "auth_ref": []
    },
    "country_IT": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/country/2025",
     "localname": "IT",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Italy"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_IlluminaIncFR452327109CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "IlluminaIncFR452327109CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Illumina, Inc.FR_452327109"
       }
      }
     },
     "auth_ref": []
    },
    "oef_InabilityToMeetDistLevelTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "InabilityToMeetDistLevelTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Inability to Meet Distribution Level [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r42"
     ]
    },
    "oef_IndustrySectorAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "IndustrySectorAxis",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Industry Sector [Axis]"
       }
      }
     },
     "auth_ref": [
      "r48"
     ]
    },
    "oef_IndustrySectorDomain": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "IndustrySectorDomain",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Industry Sector [Domain]"
       }
      }
     },
     "auth_ref": [
      "r48"
     ]
    },
    "brighthouse_InterDigitalIncFR45867G101CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "InterDigitalIncFR45867G101CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "InterDigital, Inc.FR_45867G101"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_InterMinusAmericandevelBKFRACI2K1907CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "InterMinusAmericandevelBKFRACI2K1907CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Inter-American devel BKFR_ACI2K1907"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_InvescoComstockPortfolioFR10923M682CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "InvescoComstockPortfolioFR10923M682CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Invesco Comstock PortfolioFR_10923M682"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_InvestmentCompanyPortfolioTurnover": {
     "xbrltype": "percentItemType",
     "nsuri": "http://fasb.org/us-gaap/2025",
     "localname": "InvestmentCompanyPortfolioTurnover",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "InvestmentCompanyPortfolioTurnover",
        "documentation": "Percentage of lesser of purchase or sale of portfolio securities to average value of portfolio securities owned."
       }
      }
     },
     "auth_ref": [
      "r63"
     ]
    },
    "us-gaap_InvestmentTypeAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2025",
     "localname": "InvestmentTypeAxis",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Investment Type [Axis]",
        "documentation": "Information by type of investments."
       }
      }
     },
     "auth_ref": [
      "r1",
      "r2",
      "r3",
      "r4",
      "r5",
      "r6",
      "r7",
      "r8",
      "r9",
      "r10",
      "r11",
      "r12",
      "r13",
      "r14",
      "r15",
      "r16",
      "r17"
     ]
    },
    "us-gaap_InvestmentTypeCategorizationMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2025",
     "localname": "InvestmentTypeCategorizationMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Asset obtained to generate income or appreciate in value."
       }
      }
     },
     "auth_ref": [
      "r1",
      "r2",
      "r3",
      "r4",
      "r5",
      "r6",
      "r7",
      "r8",
      "r9",
      "r10",
      "r11",
      "r12",
      "r13",
      "r14",
      "r15",
      "r16",
      "r17"
     ]
    },
    "brighthouse_ItalgasSpAFRBD2Z8S903CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "ItalgasSpAFRBD2Z8S903CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Italgas SpAFR_BD2Z8S903"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_JFrogLtdFRM6191J100CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "JFrogLtdFRM6191J100CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "JFrog Ltd.FR_M6191J100"
       }
      }
     },
     "auth_ref": []
    },
    "country_JP": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/country/2025",
     "localname": "JP",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Japan"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_JPMORGANCHASECOFR46647PCD6CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "JPMORGANCHASECOFR46647PCD6CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "JPMORGAN CHASE &amp; COFR_46647PCD6"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_JPMORGANCHASECOFR46647PCR5CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "JPMORGANCHASECOFR46647PCR5CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "JPMORGAN CHASE &amp; COFR_46647PCR5"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_JPMorganChaseCoFR46625H100CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "JPMorganChaseCoFR46625H100CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "JPMorgan Chase &amp; Co.FR_46625H100"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_JPMorganCoreBondPortfolioFR10923M591CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "JPMorganCoreBondPortfolioFR10923M591CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "JPMorgan Core Bond PortfolioFR_10923M591"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_JPMorganSecuritiesLLCFR61699400036500002026Minus07Minus01CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "JPMorganSecuritiesLLCFR61699400036500002026Minus07Minus01CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "JPMorgan Securities LLCFR_616994000_3.650000_2026-07-01"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_JennisonGrowthPortfolioFR10923P727CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "JennisonGrowthPortfolioFR10923P727CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Jennison Growth PortfolioFR_10923P727"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_JerseyChannelIslandsCTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "JerseyChannelIslandsCTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Jersey, Channel Islands"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_JohnsonJohnsonFR478160104CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "JohnsonJohnsonFR478160104CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Johnson &amp; JohnsonFR_478160104"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_KLACorpFR482480100CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "KLACorpFR482480100CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "KLA Corp.FR_482480100"
       }
      }
     },
     "auth_ref": []
    },
    "country_KR": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/country/2025",
     "localname": "KR",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "South Korea"
       }
      }
     },
     "auth_ref": []
    },
    "country_KY": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/country/2025",
     "localname": "KY",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Cayman Islands"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_KenvueIncFR49177J102CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "KenvueIncFR49177J102CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Kenvue, Inc.FR_49177J102"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_KodiakGasServicesIncFR50012A108CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "KodiakGasServicesIncFR50012A108CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Kodiak Gas Services, Inc.FR_50012A108"
       }
      }
     },
     "auth_ref": []
    },
    "country_LU": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/country/2025",
     "localname": "LU",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Luxembourg"
       }
      }
     },
     "auth_ref": []
    },
    "oef_LargestHoldingAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "LargestHoldingAxis",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Largest Holding [Axis]"
       }
      }
     },
     "auth_ref": [
      "r48"
     ]
    },
    "oef_LargestHoldingsDomain": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "LargestHoldingsDomain",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Largest Holdings [Domain]"
       }
      }
     },
     "auth_ref": [
      "r48"
     ]
    },
    "oef_LargestHoldingsTableTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "LargestHoldingsTableTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Largest Holdings [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r48"
     ]
    },
    "dei_LegalEntityAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2025",
     "localname": "LegalEntityAxis",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Series [Axis]",
        "documentation": "The set of legal entities associated with a report."
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_LigandPharmaceuticalsIncFR53220K504CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "LigandPharmaceuticalsIncFR53220K504CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Ligand Pharmaceuticals, Inc.FR_53220K504"
       }
      }
     },
     "auth_ref": []
    },
    "oef_LineGraphAndTableMeasureName": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "LineGraphAndTableMeasureName",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Line Graph and Table Measure Name"
       }
      }
     },
     "auth_ref": [
      "r34"
     ]
    },
    "oef_LineGraphTableTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "LineGraphTableTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Line Graph [Table Text Block]"
       }
      }
     },
     "auth_ref": [
      "r33"
     ]
    },
    "brighthouse_LittelfuseIncFR537008104CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "LittelfuseIncFR537008104CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Littelfuse, Inc.FR_537008104"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_LoanCore2021MinusCRE6IssuerLtdFR53948HAE6CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "LoanCore2021MinusCRE6IssuerLtdFR53948HAE6CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "LoanCore 2021-CRE6 Issuer, Ltd.FR_53948HAE6"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_LoomisSaylesGrowthPortfolioFR10923M781CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "LoomisSaylesGrowthPortfolioFR10923M781CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Loomis Sayles Growth PortfolioFR_10923M781"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_MACOMTechnologySolutionsHoldingsIncFR55405Y100CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "MACOMTechnologySolutionsHoldingsIncFR55405Y100CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "MACOM Technology Solutions Holdings, Inc.FR_55405Y100"
       }
      }
     },
     "auth_ref": []
    },
    "country_MC": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/country/2025",
     "localname": "MC",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Monaco"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_MCCLATCHYMEDIACOLLCFR00456LAC6CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "MCCLATCHYMEDIACOLLCFR00456LAC6CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "MCCLATCHY MEDIA CO LLCFR_00456LAC6"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_MF1FR59319CAC9CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "MF1FR59319CAC9CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "MF1FR_59319CAC9"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_MFSValuePortfolioFR10923P339CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "MFSValuePortfolioFR10923P339CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "MFS Value PortfolioFR_10923P339"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_MKSIncFR55306N104CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "MKSIncFR55306N104CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "MKS, Inc.FR_55306N104"
       }
      }
     },
     "auth_ref": []
    },
    "country_MX": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/country/2025",
     "localname": "MX",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Mexico"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_MYRGroupIncFR55405W104CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "MYRGroupIncFR55405W104CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "MYR Group, Inc.FR_55405W104"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_MacquarieBankLtdFR55607LGL200000002026Minus07Minus20CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "MacquarieBankLtdFR55607LGL200000002026Minus07Minus20CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Macquarie Bank LtdFR_55607LGL2_0.000000_2026-07-20"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_MarexGroupPLCFRG5S37H101CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "MarexGroupPLCFRG5S37H101CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Marex Group PLCFR_G5S37H101"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_MarvellTechnologyIncFR573874104CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "MarvellTechnologyIncFR573874104CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Marvell Technology, Inc.FR_573874104"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_MastercardIncFR57636Q104CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "MastercardIncFR57636Q104CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Mastercard, Inc.FR_57636Q104"
       }
      }
     },
     "auth_ref": []
    },
    "oef_MaterialChngDate": {
     "xbrltype": "dateItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "MaterialChngDate",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Material Change Date"
       }
      }
     },
     "auth_ref": [
      "r38"
     ]
    },
    "oef_MaterialChngDescriptionTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "MaterialChngDescriptionTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Material Change Description [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r38"
     ]
    },
    "oef_MaterialFundChngAdviserTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "MaterialFundChngAdviserTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Material Fund Change Adviser [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r55"
     ]
    },
    "oef_MaterialFundChngExpensesTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "MaterialFundChngExpensesTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Material Fund Change Expenses [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r52"
     ]
    },
    "oef_MaterialFundChngNameTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "MaterialFundChngNameTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Material Fund Change Name [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r50"
     ]
    },
    "oef_MaterialFundChngNoticeTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "MaterialFundChngNoticeTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Material Fund Change Notice [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r24"
     ]
    },
    "oef_MaterialFundChngObjectivesTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "MaterialFundChngObjectivesTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Material Fund Change Objectives [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r51"
     ]
    },
    "oef_MaterialFundChngRisksChngTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "MaterialFundChngRisksChngTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Material Fund Change Risks Change [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r54"
     ]
    },
    "oef_MaterialFundChngStrategiesTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "MaterialFundChngStrategiesTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Material Fund Change Strategies [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r53"
     ]
    },
    "oef_MaterialFundChngTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "MaterialFundChngTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Material Fund Change [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r49"
     ]
    },
    "oef_MaturityAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "MaturityAxis",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Maturity [Axis]"
       }
      }
     },
     "auth_ref": [
      "r48"
     ]
    },
    "oef_MaturityDomain": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "MaturityDomain",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Maturity [Domain]"
       }
      }
     },
     "auth_ref": [
      "r48"
     ]
    },
    "brighthouse_MaxLinearIncFR57776J100CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "MaxLinearIncFR57776J100CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "MaxLinear, Inc.FR_57776J100"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_MediaTekIncFR637248907CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "MediaTekIncFR637248907CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "MediaTek, Inc.FR_637248907"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_MedtronicPLCFRG5960L103CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "MedtronicPLCFRG5960L103CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Medtronic PLCFR_G5960L103"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_MerckCoIncFR58933Y105CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "MerckCoIncFR58933Y105CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Merck &amp; Co., Inc.FR_58933Y105"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_MercurySystemsIncFR589378108CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "MercurySystemsIncFR589378108CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Mercury Systems, Inc.FR_589378108"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_MetaPlatformsIncFR30303M102CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "MetaPlatformsIncFR30303M102CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Meta Platforms, Inc.FR_30303M102"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_MicronTechnologyIncFR595112103CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "MicronTechnologyIncFR595112103CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Micron Technology, Inc.FR_595112103"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_MicrosoftCorpFR594918104CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "MicrosoftCorpFR594918104CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Microsoft Corp.FR_594918104"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_MonolithicPowerSystemsIncFR609839105CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "MonolithicPowerSystemsIncFR609839105CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Monolithic Power Systems, Inc.FR_609839105"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_MoogIncFR615394202CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "MoogIncFR615394202CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Moog, Inc.FR_615394202"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_MorganStanleyFR617446448CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "MorganStanleyFR617446448CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Morgan StanleyFR_617446448"
       }
      }
     },
     "auth_ref": []
    },
    "country_NL": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/country/2025",
     "localname": "NL",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Netherlands"
       }
      }
     },
     "auth_ref": []
    },
    "country_NO": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/country/2025",
     "localname": "NO",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Norway"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_NRGENERGYINCFR629377DD1CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "NRGENERGYINCFR629377DD1CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "NRG ENERGY INCFR_629377DD1"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_NRGEnergyIncFR629377508CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "NRGEnergyIncFR629377508CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "NRG Energy, Inc.FR_629377508"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_NVIDIACorpFR67066G104CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "NVIDIACorpFR67066G104CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "NVIDIA Corp.FR_67066G104"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_NVentElectricPLCFRG6700G107CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "NVentElectricPLCFRG6700G107CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "nVent Electric PLCFR_G6700G107"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_NationalBankofCanadaFR63307MS4200000002027Minus05Minus04CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "NationalBankofCanadaFR63307MS4200000002027Minus05Minus04CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "National Bank of CanadaFR_63307MS42_0.000000_2027-05-04"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_NestleSAFR712387901CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "NestleSAFR712387901CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Nestle SAFR_712387901"
       }
      }
     },
     "auth_ref": []
    },
    "oef_NoDeductionOfTaxesTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "NoDeductionOfTaxesTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "No Deduction of Taxes [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r35"
     ]
    },
    "dei_NoTradingSymbolFlag": {
     "xbrltype": "trueItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2025",
     "localname": "NoTradingSymbolFlag",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "No Trading Symbol [Flag]",
        "documentation": "Boolean flag that is true only for a security having no trading symbol."
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_NorthernTrustCorpFR665859104CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "NorthernTrustCorpFR665859104CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Northern Trust Corp.FR_665859104"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_NovartisAGFR710306903CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "NovartisAGFR710306903CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Novartis AGFR_710306903"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_NutrienLtdFR67077M108CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "NutrienLtdFR67077M108CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Nutrien Ltd.FR_67077M108"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_OCPCLOLtdFR67092DBF5CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "OCPCLOLtdFR67092DBF5CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "OCP CLO LtdFR_67092DBF5"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_OmnicomGroupIncFR681919106CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "OmnicomGroupIncFR681919106CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Omnicom Group, Inc.FR_681919106"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_OrionOYJFRB17NY4905CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "OrionOYJFRB17NY4905CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Orion OYJFR_B17NY4905"
       }
      }
     },
     "auth_ref": []
    },
    "oef_OtherCategory1Axis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "OtherCategory1Axis",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Other Category 1 [Axis]"
       }
      }
     },
     "auth_ref": [
      "r48"
     ]
    },
    "oef_OtherCategory1Domain": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "OtherCategory1Domain",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Other Category 1 [Domain]"
       }
      }
     },
     "auth_ref": [
      "r48"
     ]
    },
    "oef_OtherCategory2Axis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "OtherCategory2Axis",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Other Category 2 [Axis]"
       }
      }
     },
     "auth_ref": [
      "r48"
     ]
    },
    "oef_OtherCategory2Domain": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "OtherCategory2Domain",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Other Category 2 [Domain]"
       }
      }
     },
     "auth_ref": [
      "r48"
     ]
    },
    "brighthouse_OvintivIncFR69047Q102CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "OvintivIncFR69047Q102CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Ovintiv, Inc.FR_69047Q102"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_PIMCOInflationProtectedBondPortfolioFR10923M252CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "PIMCOInflationProtectedBondPortfolioFR10923M252CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "PIMCO Inflation Protected Bond PortfolioFR_10923M252"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_PIMCOTotalReturnPortfolioFR10923M229CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "PIMCOTotalReturnPortfolioFR10923M229CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "PIMCO Total Return PortfolioFR_10923M229"
       }
      }
     },
     "auth_ref": []
    },
    "country_PR": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/country/2025",
     "localname": "PR",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Puerto Rico"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_PSPSwissPropertyAGFRB01287901CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "PSPSwissPropertyAGFRB01287901CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "PSP Swiss Property AGFR_B01287901"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_PaloAltoNetworksIncFR697435105CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "PaloAltoNetworksIncFR697435105CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Palo Alto Networks, Inc.FR_697435105"
       }
      }
     },
     "auth_ref": []
    },
    "oef_PctOfNav": {
     "xbrltype": "percentItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "PctOfNav",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Percent of Net Asset Value"
       }
      }
     },
     "auth_ref": [
      "r48"
     ]
    },
    "oef_PctOfNetLongExposure": {
     "xbrltype": "percentItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "PctOfNetLongExposure",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Percent of Net Long Exposure"
       }
      }
     },
     "auth_ref": [
      "r48"
     ]
    },
    "oef_PctOfNetShortExposure": {
     "xbrltype": "percentItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "PctOfNetShortExposure",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Percent of Net Short Exposure"
       }
      }
     },
     "auth_ref": [
      "r48"
     ]
    },
    "oef_PctOfTotalInv": {
     "xbrltype": "percentItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "PctOfTotalInv",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Percent of Total Investments"
       }
      }
     },
     "auth_ref": [
      "r48"
     ]
    },
    "oef_PctOfTotalLongExposure": {
     "xbrltype": "percentItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "PctOfTotalLongExposure",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Percent of Total Long Exposure"
       }
      }
     },
     "auth_ref": [
      "r48"
     ]
    },
    "oef_PctOfTotalShortExposure": {
     "xbrltype": "percentItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "PctOfTotalShortExposure",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Percent of Total Short Exposure"
       }
      }
     },
     "auth_ref": [
      "r48"
     ]
    },
    "oef_PerfInceptionDate": {
     "xbrltype": "dateItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "PerfInceptionDate",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Performance Inception Date"
       }
      }
     },
     "auth_ref": [
      "r34"
     ]
    },
    "oef_PerfTableMarketIndexChngdTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "PerfTableMarketIndexChngdTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Performance Table Market Index Changed [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r41"
     ]
    },
    "oef_PerformancePastDoesNotIndicateFuture": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "PerformancePastDoesNotIndicateFuture",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Performance Past Does Not Indicate Future [Text]"
       }
      }
     },
     "auth_ref": [
      "r36",
      "r60"
     ]
    },
    "brighthouse_PfizerIncFR717081103CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "PfizerIncFR717081103CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Pfizer, Inc.FR_717081103"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_PopularIncFR733174700CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "PopularIncFR733174700CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Popular, Inc.FR_733174700"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_PretiumMortgageCreditPartnersLLCFR69383AAA7CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "PretiumMortgageCreditPartnersLLCFR69383AAA7CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Pretium Mortgage Credit Partners LLCFR_69383AAA7"
       }
      }
     },
     "auth_ref": []
    },
    "oef_PreviousInvestmentAdviserTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "PreviousInvestmentAdviserTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Previous Investment Adviser [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r37"
     ]
    },
    "oef_PriorMarketIndexComparisonTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "PriorMarketIndexComparisonTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Prior Market Index Comparison [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r41"
     ]
    },
    "brighthouse_ProsperityBancsharesIncFR743606105CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "ProsperityBancsharesIncFR743606105CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Prosperity Bancshares, Inc.FR_743606105"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_QuantaServicesIncFR74762E102CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "QuantaServicesIncFR74762E102CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Quanta Services, Inc.FR_74762E102"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_RBCBearingsIncFR75524B104CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "RBCBearingsIncFR75524B104CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "RBC Bearings, Inc.FR_75524B104"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_RESOLUTIONFUNDINGSTRIPFR76116EGQ7CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "RESOLUTIONFUNDINGSTRIPFR76116EGQ7CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "RESOLUTION FUNDING STRIPFR_76116EGQ7"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_RFCPRINCIPALSTRIPFR76116FAC1CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "RFCPRINCIPALSTRIPFR76116FAC1CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "RFC PRINCIPAL STRIPFR_76116FAC1"
       }
      }
     },
     "auth_ref": []
    },
    "country_RO": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/country/2025",
     "localname": "RO",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Romania"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_ROYALBANKOFCANADAFRATD235ZX436700002026Minus07Minus01CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "ROYALBANKOFCANADAFRATD235ZX436700002026Minus07Minus01CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "ROYAL BANK OF CANADAFR_ATD235ZX4_3.670000_2026-07-01"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_RTXCorpFR75513E101CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "RTXCorpFR75513E101CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "RTX Corp.FR_75513E101"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_RambusIncFR750917106CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "RambusIncFR750917106CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Rambus, Inc.FR_750917106"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_RexelSAFRB1VP0K904CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "RexelSAFRB1VP0K904CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Rexel SAFR_B1VP0K904"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_RioTintoPLCFR071887004CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "RioTintoPLCFR071887004CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Rio Tinto PLCFR_071887004"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_RocheHoldingAGFRACI38LVK6CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "RocheHoldingAGFRACI38LVK6CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Roche Holding AGFR_ACI38LVK6"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_RoyalCaribbeanCruisesLtdFRV7780T103CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "RoyalCaribbeanCruisesLtdFRV7780T103CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Royal Caribbean Cruises Ltd.FR_V7780T103"
       }
      }
     },
     "auth_ref": []
    },
    "country_SE": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/country/2025",
     "localname": "SE",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Sweden"
       }
      }
     },
     "auth_ref": []
    },
    "country_SG": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/country/2025",
     "localname": "SG",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Singapore"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SPIESAFRBRB38F901CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SPIESAFRBRB38F901CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SPIE SAFR_BRB38F901"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_STMicroelectronicsNVFR861012102CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "STMicroelectronicsNVFR861012102CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "STMicroelectronics NVFR_861012102"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SVENSKAHANDELSBANKENABFR86960KJA100000002026Minus09Minus10CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SVENSKAHANDELSBANKENABFR86960KJA100000002026Minus09Minus10CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SVENSKA HANDELSBANKEN ABFR_86960KJA1_0.000000_2026-09-10"
       }
      }
     },
     "auth_ref": []
    },
    "oef_SalesLoadAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "SalesLoadAxis",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Sales Load [Axis]"
       }
      }
     },
     "auth_ref": [
      "r40"
     ]
    },
    "brighthouse_SamsungElectronicsCoLtdFR677172009CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SamsungElectronicsCoLtdFR677172009CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Samsung Electronics Co. Ltd.FR_677172009"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorCommunicationServicesFR141788109SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorCommunicationServicesFR141788109SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorCommunication ServicesFR_141788109"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorCommunicationServicesFR254687106SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorCommunicationServicesFR254687106SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorCommunication ServicesFR_254687106"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorCommunicationServicesFR30303M102SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorCommunicationServicesFR30303M102SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorCommunication ServicesFR_30303M102"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorCommunicationServicesFR588185900SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorCommunicationServicesFR588185900SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorCommunication ServicesFR_588185900"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorCommunicationServicesFR65336K103SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorCommunicationServicesFR65336K103SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorCommunication ServicesFR_65336K103"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorCommunicationServicesFR663955003SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorCommunicationServicesFR663955003SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorCommunication ServicesFR_663955003"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorCommunicationServicesFR69932A204SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorCommunicationServicesFR69932A204SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorCommunication ServicesFR_69932A204"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorCommunicationServicesFR771049103SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorCommunicationServicesFR771049103SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorCommunication ServicesFR_771049103"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorCommunicationServicesFR811054402SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorCommunicationServicesFR811054402SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorCommunication ServicesFR_811054402"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorCommunicationServicesFR942BLU909SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorCommunicationServicesFR942BLU909SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorCommunication ServicesFR_942BLU909"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorCommunicationServicesFR967BKB001SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorCommunicationServicesFR967BKB001SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorCommunication ServicesFR_967BKB001"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorCommunicationServicesFR968223206SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorCommunicationServicesFR968223206SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorCommunication ServicesFR_968223206"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorConsumerDiscretionaryFR005098108SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorConsumerDiscretionaryFR005098108SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorConsumer DiscretionaryFR_005098108"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorConsumerDiscretionaryFR198516106SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorConsumerDiscretionaryFR198516106SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorConsumer DiscretionaryFR_198516106"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorConsumerDiscretionaryFR30212P303SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorConsumerDiscretionaryFR30212P303SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorConsumer DiscretionaryFR_30212P303"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorConsumerDiscretionaryFR535219109SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorConsumerDiscretionaryFR535219109SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorConsumer DiscretionaryFR_535219109"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorConsumerDiscretionaryFR548661107SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorConsumerDiscretionaryFR548661107SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorConsumer DiscretionaryFR_548661107"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorConsumerDiscretionaryFR571903202SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorConsumerDiscretionaryFR571903202SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorConsumer DiscretionaryFR_571903202"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorConsumerDiscretionaryFR575603907SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorConsumerDiscretionaryFR575603907SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorConsumer DiscretionaryFR_575603907"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorConsumerDiscretionaryFR722304102SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorConsumerDiscretionaryFR722304102SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorConsumer DiscretionaryFR_722304102"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorConsumerDiscretionaryFR73278L105SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorConsumerDiscretionaryFR73278L105SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorConsumer DiscretionaryFR_73278L105"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorConsumerDiscretionaryFR855244109SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorConsumerDiscretionaryFR855244109SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorConsumer DiscretionaryFR_855244109"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorConsumerDiscretionaryFR88160R101SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorConsumerDiscretionaryFR88160R101SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorConsumer DiscretionaryFR_88160R101"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorConsumerDiscretionaryFR92333E104SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorConsumerDiscretionaryFR92333E104SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorConsumer DiscretionaryFR_92333E104"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorConsumerDiscretionaryFR952TQHII2SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorConsumerDiscretionaryFR952TQHII2SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorConsumer DiscretionaryFR_952TQHII2"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorConsumerDiscretionaryFR967HMJ009SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorConsumerDiscretionaryFR967HMJ009SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorConsumer DiscretionaryFR_967HMJ009"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorConsumerDiscretionaryFRG9600F104SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorConsumerDiscretionaryFRG9600F104SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorConsumer DiscretionaryFR_G9600F104"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorConsumerDiscretionaryFRN30577105SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorConsumerDiscretionaryFRN30577105SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorConsumer DiscretionaryFR_N30577105"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorConsumerStaplesFR115637209SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorConsumerStaplesFR115637209SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorConsumer StaplesFR_115637209"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorConsumerStaplesFR171340102SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorConsumerStaplesFR171340102SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorConsumer StaplesFR_171340102"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorConsumerStaplesFR21036P108SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorConsumerStaplesFR21036P108SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorConsumer StaplesFR_21036P108"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorConsumerStaplesFR22160K105SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorConsumerStaplesFR22160K105SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorConsumer StaplesFR_22160K105"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorConsumerStaplesFR458334109SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorConsumerStaplesFR458334109SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorConsumer StaplesFR_458334109"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorConsumerStaplesFR49177J102SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorConsumerStaplesFR49177J102SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorConsumer StaplesFR_49177J102"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorConsumerStaplesFR72147K108SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorConsumerStaplesFR72147K108SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorConsumer StaplesFR_72147K108"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorConsumerStaplesFR931142103SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorConsumerStaplesFR931142103SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorConsumer StaplesFR_931142103"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorConsumerStaplesFR936QAL906SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorConsumerStaplesFR936QAL906SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorConsumer StaplesFR_936QAL906"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorConsumerStaplesFRB1W5NW906SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorConsumerStaplesFRB1W5NW906SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorConsumer StaplesFR_B1W5NW906"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorConsumerStaplesFRBP3R2F907SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorConsumerStaplesFRBP3R2F907SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorConsumer StaplesFR_BP3R2F907"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorConsumerStaplesFRG0896C103SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorConsumerStaplesFRG0896C103SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorConsumer StaplesFR_G0896C103"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorEmergingMarketEquitiesFR10923N797SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorEmergingMarketEquitiesFR10923N797SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorEmerging Market EquitiesFR_10923N797"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorEnergyFR03743Q108SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorEnergyFR03743Q108SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorEnergyFR_03743Q108"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorEnergyFR134808948SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorEnergyFR134808948SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorEnergyFR_134808948"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorEnergyFR26875P101SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorEnergyFR26875P101SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorEnergyFR_26875P101"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorEnergyFR26884L109SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorEnergyFR26884L109SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorEnergyFR_26884L109"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorEnergyFR30231G102SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorEnergyFR30231G102SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorEnergyFR_30231G102"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorEnergyFR40445M100SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorEnergyFR40445M100SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorEnergyFR_40445M100"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorEnergyFR457270007SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorEnergyFR457270007SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorEnergyFR_457270007"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorEnergyFR559663109SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorEnergyFR559663109SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorEnergyFR_559663109"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorEnergyFR64361Q101SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorEnergyFR64361Q101SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorEnergyFR_64361Q101"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorEnergyFR675232102SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorEnergyFR675232102SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorEnergyFR_675232102"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorEnergyFR69318G106SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorEnergyFR69318G106SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorEnergyFR_69318G106"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorEnergyFR71424F105SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorEnergyFR71424F105SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorEnergyFR_71424F105"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorEnergyFRB15C55900SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorEnergyFRB15C55900SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorEnergyFR_B15C55900"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorEnergyFRBF50RG907SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorEnergyFRBF50RG907SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorEnergyFR_BF50RG907"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorFinancialsFR03071H100SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorFinancialsFR03071H100SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorFinancialsFR_03071H100"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorFinancialsFR03990B101SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorFinancialsFR03990B101SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorFinancialsFR_03990B101"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorFinancialsFR14316J108SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorFinancialsFR14316J108SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorFinancialsFR_14316J108"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorFinancialsFR29530P102SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorFinancialsFR29530P102SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorFinancialsFR_29530P102"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorFinancialsFR298736109SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorFinancialsFR298736109SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorFinancialsFR_298736109"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorFinancialsFR31620M106SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorFinancialsFR31620M106SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorFinancialsFR_31620M106"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorFinancialsFR38141G104SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorFinancialsFR38141G104SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorFinancialsFR_38141G104"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorFinancialsFR57142B104SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorFinancialsFR57142B104SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorFinancialsFR_57142B104"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorFinancialsFR68621T102SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorFinancialsFR68621T102SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorFinancialsFR_68621T102"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorFinancialsFR78409V104SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorFinancialsFR78409V104SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorFinancialsFR_78409V104"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorFinancialsFR808513105SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorFinancialsFR808513105SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorFinancialsFR_808513105"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorFinancialsFR858927106SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorFinancialsFR858927106SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorFinancialsFR_858927106"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorFinancialsFR958JXD908SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorFinancialsFR958JXD908SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorFinancialsFR_958JXD908"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorFinancialsFRB1DN46906SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorFinancialsFRB1DN46906SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorFinancialsFR_B1DN46906"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorFinancialsFRBJ0CJC906SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorFinancialsFRBJ0CJC906SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorFinancialsFR_BJ0CJC906"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorGlobalEquitiesFR10923M294SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorGlobalEquitiesFR10923M294SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorGlobal EquitiesFR_10923M294"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorHealthCareFR02043Q107SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorHealthCareFR02043Q107SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorHealth CareFR_02043Q107"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorHealthCareFR05352A100SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorHealthCareFR05352A100SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorHealth CareFR_05352A100"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorHealthCareFR09075V102SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorHealthCareFR09075V102SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorHealth CareFR_09075V102"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorHealthCareFR142152107SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorHealthCareFR142152107SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorHealth CareFR_142152107"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorHealthCareFR169CVR016SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorHealthCareFR169CVR016SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorHealth CareFR_169CVR016"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorHealthCareFR24906P109SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorHealthCareFR24906P109SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorHealth CareFR_24906P109"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorHealthCareFR436CVR021SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorHealthCareFR436CVR021SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorHealth CareFR_436CVR021"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorHealthCareFR45826H109SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorHealthCareFR45826H109SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorHealth CareFR_45826H109"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorHealthCareFR532457108SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorHealthCareFR532457108SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorHealth CareFR_532457108"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorHealthCareFR58507V107SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorHealthCareFR58507V107SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorHealth CareFR_58507V107"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorHealthCareFR87164F105SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorHealthCareFR87164F105SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorHealth CareFR_87164F105"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorHealthCareFR92532F100SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorHealthCareFR92532F100SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorHealth CareFR_92532F100"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorHealthCareFR98978V103SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorHealthCareFR98978V103SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorHealth CareFR_98978V103"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorHealthCareFRACI0CGHW8SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorHealthCareFRACI0CGHW8SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorHealth CareFR_ACI0CGHW8"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorHealthCareFRB7FC07907SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorHealthCareFRB7FC07907SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorHealth CareFR_B7FC07907"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorHighYieldFixedIncomeFR10923M849SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorHighYieldFixedIncomeFR10923M849SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorHigh Yield Fixed IncomeFR_10923M849"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorIndustrialsFR00766T100SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorIndustrialsFR00766T100SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorIndustrialsFR_00766T100"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorIndustrialsFR039653100SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorIndustrialsFR039653100SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorIndustrialsFR_039653100"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorIndustrialsFR053774105SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorIndustrialsFR053774105SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorIndustrialsFR_053774105"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorIndustrialsFR244199105SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorIndustrialsFR244199105SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorIndustrialsFR_244199105"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorIndustrialsFR420201105SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorIndustrialsFR420201105SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorIndustrialsFR_420201105"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorIndustrialsFR447462102SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorIndustrialsFR447462102SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorIndustrialsFR_447462102"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorIndustrialsFR451CVR021SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorIndustrialsFR451CVR021SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorIndustrialsFR_451CVR021"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorIndustrialsFR452518905SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorIndustrialsFR452518905SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorIndustrialsFR_452518905"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorIndustrialsFR600551204SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorIndustrialsFR600551204SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorIndustrialsFR_600551204"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorIndustrialsFR775711104SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorIndustrialsFR775711104SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorIndustrialsFR_775711104"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorIndustrialsFR831865209SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorIndustrialsFR831865209SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorIndustrialsFR_831865209"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorIndustrialsFR893641100SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorIndustrialsFR893641100SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorIndustrialsFR_893641100"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorIndustrialsFR92537N108SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorIndustrialsFR92537N108SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorIndustrialsFR_92537N108"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorIndustrialsFRACI112QQ2SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorIndustrialsFRACI112QQ2SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorIndustrialsFR_ACI112QQ2"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorIndustrialsFRACI39RTL3SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorIndustrialsFRACI39RTL3SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorIndustrialsFR_ACI39RTL3"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorIndustrialsFRBXJMP0902SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorIndustrialsFRBXJMP0902SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorIndustrialsFR_BXJMP0902"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorIndustrialsFRG8994E103SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorIndustrialsFRG8994E103SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorIndustrialsFR_G8994E103"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorInformationTechnologyFR03831W108SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorInformationTechnologyFR03831W108SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorInformation TechnologyFR_03831W108"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorInformationTechnologyFR09239B109SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorInformationTechnologyFR09239B109SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorInformation TechnologyFR_09239B109"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorInformationTechnologyFR19247G107SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorInformationTechnologyFR19247G107SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorInformation TechnologyFR_19247G107"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorInformationTechnologyFR21037X985SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorInformationTechnologyFR21037X985SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorInformation TechnologyFR_21037X985"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorInformationTechnologyFR224441105SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorInformationTechnologyFR224441105SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorInformation TechnologyFR_224441105"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorInformationTechnologyFR366651107SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorInformationTechnologyFR366651107SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorInformation TechnologyFR_366651107"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorInformationTechnologyFR452521107SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorInformationTechnologyFR452521107SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorInformation TechnologyFR_452521107"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorInformationTechnologyFR563396902SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorInformationTechnologyFR563396902SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorInformation TechnologyFR_563396902"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorInformationTechnologyFR595112103SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorInformationTechnologyFR595112103SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorInformation TechnologyFR_595112103"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorInformationTechnologyFR671044105SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorInformationTechnologyFR671044105SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorInformation TechnologyFR_671044105"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorInformationTechnologyFR747525103SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorInformationTechnologyFR747525103SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorInformation TechnologyFR_747525103"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorInformationTechnologyFR9353CZ905SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorInformationTechnologyFR9353CZ905SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorInformation TechnologyFR_9353CZ905"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorInformationTechnologyFR943FYF007SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorInformationTechnologyFR943FYF007SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorInformation TechnologyFR_943FYF007"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorInformationTechnologyFR990ADYQQ7SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorInformationTechnologyFR990ADYQQ7SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorInformation TechnologyFR_990ADYQQ7"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorInformationTechnologyFRG1151C101SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorInformationTechnologyFRG1151C101SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorInformation TechnologyFR_G1151C101"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorInternationalDevelopedMarketEquitiesFR10923M369SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorInternationalDevelopedMarketEquitiesFR10923M369SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorInternational Developed Market EquitiesFR_10923M369"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorInternationalDevelopedMarketEquitiesFR10923M526SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorInternationalDevelopedMarketEquitiesFR10923M526SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorInternational Developed Market EquitiesFR_10923M526"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorInternationalDevelopedMarketEquitiesFR10923P586SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorInternationalDevelopedMarketEquitiesFR10923P586SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorInternational Developed Market EquitiesFR_10923P586"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorInternationalFixedIncomeFR10923M450SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorInternationalFixedIncomeFR10923M450SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorInternational Fixed IncomeFR_10923M450"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorInternationalFixedIncomeFR10923N821SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorInternationalFixedIncomeFR10923N821SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorInternational Fixed IncomeFR_10923N821"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorInvestmentGradeFixedIncomeFR10923M252SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorInvestmentGradeFixedIncomeFR10923M252SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorInvestment Grade Fixed IncomeFR_10923M252"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorInvestmentGradeFixedIncomeFR10923M476SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorInvestmentGradeFixedIncomeFR10923M476SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorInvestment Grade Fixed IncomeFR_10923M476"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorMaterialsFR032037103SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorMaterialsFR032037103SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorMaterialsFR_032037103"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorMaterialsFR125269100SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorMaterialsFR125269100SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorMaterialsFR_125269100"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorMaterialsFR397624107SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorMaterialsFR397624107SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorMaterialsFR_397624107"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorMaterialsFR420261109SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorMaterialsFR420261109SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorMaterialsFR_420261109"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorMaterialsFR46578C108SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorMaterialsFR46578C108SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorMaterialsFR_46578C108"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorMaterialsFR467940003SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorMaterialsFR467940003SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorMaterialsFR_467940003"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorMaterialsFR61945C103SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorMaterialsFR61945C103SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorMaterialsFR_61945C103"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorMaterialsFR628464109SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorMaterialsFR628464109SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorMaterialsFR_628464109"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorMaterialsFR645553900SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorMaterialsFR645553900SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorMaterialsFR_645553900"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorMaterialsFR829ESC9B0SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorMaterialsFR829ESC9B0SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorMaterialsFR_829ESC9B0"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorMaterialsFR83443Q103SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorMaterialsFR83443Q103SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorMaterialsFR_83443Q103"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorMaterialsFR942EAB907SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorMaterialsFR942EAB907SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorMaterialsFR_942EAB907"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorMaterialsFR962879102SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorMaterialsFR962879102SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorMaterialsFR_962879102"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorMaterialsFRBYSW6D901SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorMaterialsFRBYSW6D901SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorMaterialsFR_BYSW6D901"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorMaterialsFRG25508105SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorMaterialsFRG25508105SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorMaterialsFR_G25508105"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorRealEstateEquitiesFR10923M823SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorRealEstateEquitiesFR10923M823SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorReal Estate EquitiesFR_10923M823"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorRealEstateFR194693107SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorRealEstateFR194693107SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorReal EstateFR_194693107"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorRealEstateFR20464U100SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorRealEstateFR20464U100SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorReal EstateFR_20464U100"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorRealEstateFR313745101SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorRealEstateFR313745101SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorReal EstateFR_313745101"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorRealEstateFR398182303SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorRealEstateFR398182303SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorReal EstateFR_398182303"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorRealEstateFR468158902SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorRealEstateFR468158902SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorReal EstateFR_468158902"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorRealEstateFR64110Y108SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorRealEstateFR64110Y108SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorReal EstateFR_64110Y108"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorRealEstateFR700517105SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorRealEstateFR700517105SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorReal EstateFR_700517105"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorRealEstateFR74340W103SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorRealEstateFR74340W103SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorReal EstateFR_74340W103"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorRealEstateFR95040Q104SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorRealEstateFR95040Q104SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorReal EstateFR_95040Q104"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorUSLargeCapEquitiesFR10923P164SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorUSLargeCapEquitiesFR10923P164SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorU.S. Large Cap EquitiesFR_10923P164"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorUSLargeCapEquitiesFR10923P727SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorUSLargeCapEquitiesFR10923P727SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorU.S. Large Cap EquitiesFR_10923P727"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorUSLargeCapEquitiesFR10923P867SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorUSLargeCapEquitiesFR10923P867SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorU.S. Large Cap EquitiesFR_10923P867"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorUSMidCapEquitiesFR10923M336SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorUSMidCapEquitiesFR10923M336SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorU.S. Mid Cap EquitiesFR_10923M336"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorUSMidCapEquitiesFR10923M757SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorUSMidCapEquitiesFR10923M757SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorU.S. Mid Cap EquitiesFR_10923M757"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorUSMidCapEquitiesFR10923P628SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorUSMidCapEquitiesFR10923P628SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorU.S. Mid Cap EquitiesFR_10923P628"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorUSSmallCapEquitiesFR10923P248SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorUSSmallCapEquitiesFR10923P248SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorU.S. Small Cap EquitiesFR_10923P248"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorUSSmallCapEquitiesFR10923P651SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorUSSmallCapEquitiesFR10923P651SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorU.S. Small Cap EquitiesFR_10923P651"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorUtilitiesFR00130H105SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorUtilitiesFR00130H105SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorUtilitiesFR_00130H105"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorUtilitiesFR025537101SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorUtilitiesFR025537101SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorUtilitiesFR_025537101"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorUtilitiesFR030420103SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorUtilitiesFR030420103SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorUtilitiesFR_030420103"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorUtilitiesFR21037T109SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorUtilitiesFR21037T109SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorUtilitiesFR_21037T109"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorUtilitiesFR632005906SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorUtilitiesFR632005906SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorUtilitiesFR_632005906"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorUtilitiesFR636180101SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorUtilitiesFR636180101SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorUtilitiesFR_636180101"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorUtilitiesFR668074305SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorUtilitiesFR668074305SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorUtilitiesFR_668074305"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorUtilitiesFR74955L103SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorUtilitiesFR74955L103SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorUtilitiesFR_74955L103"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorUtilitiesFR92840M102SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorUtilitiesFR92840M102SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorUtilitiesFR_92840M102"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SectorUtilitiesFRACI00WIH8SectorMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SectorUtilitiesFRACI00WIH8SectorMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "SectorUtilitiesFR_ACI00WIH8"
       }
      }
     },
     "auth_ref": []
    },
    "dei_SecurityExchangeName": {
     "xbrltype": "edgarExchangeCodeItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2025",
     "localname": "SecurityExchangeName",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Security Exchange Name",
        "terseLabel": "Exchange",
        "documentation": "Name of the Exchange on which a security is registered."
       }
      }
     },
     "auth_ref": [
      "r19"
     ]
    },
    "oef_ShareClassDomain": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "ShareClassDomain",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport",
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails",
      "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Share Classes"
       }
      }
     },
     "auth_ref": [
      "r20"
     ]
    },
    "oef_ShareholderReportAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "ShareholderReportAbstract",
     "lang": {
      "en-us": {
       "role": {
        "label": "Shareholder Report [Abstract]"
       }
      }
     },
     "auth_ref": [
      "r40"
     ]
    },
    "oef_ShareholderReportAnnualOrSemiAnnual": {
     "xbrltype": "shareholderReportTypeItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "ShareholderReportAnnualOrSemiAnnual",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Shareholder Report Annual or Semi-Annual"
       }
      }
     },
     "auth_ref": [
      "r22"
     ]
    },
    "oef_ShareholderReportLineItems": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "ShareholderReportLineItems",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/NcsrCover",
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Shareholder Report [Line Items]"
       }
      }
     },
     "auth_ref": [
      "r40"
     ]
    },
    "oef_ShareholderReportTable": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "ShareholderReportTable",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/NcsrCover",
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Shareholder Report [Table]"
       }
      }
     },
     "auth_ref": [
      "r40"
     ]
    },
    "brighthouse_ShellPLCFRBP6MXD906CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "ShellPLCFRBP6MXD906CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Shell PLCFR_BP6MXD906"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SiemensAGFR572797900CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SiemensAGFR572797900CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Siemens AGFR_572797900"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_SnowflakeIncFR833445109CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SnowflakeIncFR833445109CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Snowflake, Inc.FR_833445109"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_StateStreetSPDRSPMidCap400ETFTrustFR78467Y107CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "StateStreetSPDRSPMidCap400ETFTrustFR78467Y107CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "State Street SPDR S&amp;P MidCap 400 ETF TrustFR_78467Y107"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_StoneXGroupIncFR861896108CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "StoneXGroupIncFR861896108CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "StoneX Group, Inc.FR_861896108"
       }
      }
     },
     "auth_ref": []
    },
    "oef_SummaryOfChngLegendTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "SummaryOfChngLegendTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Summary of Change Legend [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r56"
     ]
    },
    "brighthouse_SwissPrimeSiteAGFRB083BH906CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "SwissPrimeSiteAGFRB083BH906CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Swiss Prime Site AGFR_B083BH906"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_TCWCoreFixedIncomePortfolioFR10923M120CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "TCWCoreFixedIncomePortfolioFR10923M120CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "TCW Core Fixed Income PortfolioFR_10923M120"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_TDSYNNEXCorpFR87162W100CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "TDSYNNEXCorpFR87162W100CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "TD SYNNEX Corp.FR_87162W100"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_TENNVALLEYAUTHORITYFR880591FD9CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "TENNVALLEYAUTHORITYFR880591FD9CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "TENN VALLEY AUTHORITYFR_880591FD9"
       }
      }
     },
     "auth_ref": []
    },
    "country_TH": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/country/2025",
     "localname": "TH",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Thailand"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_TORONTODOMINIONFR8911A000936500002026Minus07Minus01CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "TORONTODOMINIONFR8911A000936500002026Minus07Minus01CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "TORONTO DOMINIONFR_8911A0009_3.650000_2026-07-01"
       }
      }
     },
     "auth_ref": []
    },
    "country_TR": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/country/2025",
     "localname": "TR",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Turkey"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_TRowePriceLargeCapValuePortfolioFR10923N409CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "TRowePriceLargeCapValuePortfolioFR10923N409CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "T. Rowe Price Large Cap Value PortfolioFR_10923N409"
       }
      }
     },
     "auth_ref": []
    },
    "country_TW": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/country/2025",
     "localname": "TW",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Taiwan"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_TaiwanSemiconductorManufacturingCoLtdFR688910900CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "TaiwanSemiconductorManufacturingCoLtdFR688910900CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Taiwan Semiconductor Manufacturing Co. Ltd.FR_688910900"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_TechnipFMCPLCFRG87110105CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "TechnipFMCPLCFRG87110105CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "TechnipFMC PLCFR_G87110105"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_TencentHoldingsLtdFRBMMV2K903CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "TencentHoldingsLtdFRBMMV2K903CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Tencent Holdings Ltd.FR_BMMV2K903"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_TeslaIncFR88160R101CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "TeslaIncFR88160R101CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Tesla, Inc.FR_88160R101"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_TexasInstrumentsIncFR882508104CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "TexasInstrumentsIncFR882508104CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Texas Instruments, Inc.FR_882508104"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_TokyoElectronLtdFR689567006CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "TokyoElectronLtdFR689567006CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Tokyo Electron Ltd.FR_689567006"
       }
      }
     },
     "auth_ref": []
    },
    "dei_TradingSymbol": {
     "xbrltype": "tradingSymbolItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2025",
     "localname": "TradingSymbol",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Trading Symbol",
        "terseLabel": "Ticker",
        "documentation": "Trading symbol of an instrument as listed on an exchange."
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_TwilioIncFR90138F102CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "TwilioIncFR90138F102CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Twilio, Inc.FR_90138F102"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_UMBFinancialCorpFR902788108CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "UMBFinancialCorpFR902788108CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "UMB Financial Corp.FR_902788108"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_UMBSTBAFR01F052672CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "UMBSTBAFR01F052672CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "UMBS, TBAFR_01F052672"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_UMBSTBAFR01F060675CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "UMBSTBAFR01F060675CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "UMBS, TBAFR_01F060675"
       }
      }
     },
     "auth_ref": []
    },
    "country_US": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/country/2025",
     "localname": "US",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "United States"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_UltraCleanHoldingsIncFR90385V107CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "UltraCleanHoldingsIncFR90385V107CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Ultra Clean Holdings, Inc.FR_90385V107"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_UnitedStatesTreasuryFR912810RN0CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "UnitedStatesTreasuryFR912810RN0CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "United States TreasuryFR_912810RN0"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_UnitedStatesTreasuryFR912810RT7CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "UnitedStatesTreasuryFR912810RT7CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "United States TreasuryFR_912810RT7"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_UnitedStatesTreasuryFR912810TV0CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "UnitedStatesTreasuryFR912810TV0CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "United States TreasuryFR_912810TV0"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_UnitedStatesTreasuryFR912810UQ9CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "UnitedStatesTreasuryFR912810UQ9CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "United States TreasuryFR_912810UQ9"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_UnitedStatesTreasuryFR91282CJZ5CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "UnitedStatesTreasuryFR91282CJZ5CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "United States TreasuryFR_91282CJZ5"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_UnitedStatesTreasuryFR91282CKX8CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "UnitedStatesTreasuryFR91282CKX8CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "United States TreasuryFR_91282CKX8"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_UnitedStatesTreasuryFR91282CND9CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "UnitedStatesTreasuryFR91282CND9CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "United States TreasuryFR_91282CND9"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_UnitedStatesTreasuryFR91282CNX5CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "UnitedStatesTreasuryFR91282CNX5CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "United States TreasuryFR_91282CNX5"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_UnitedStatesTreasuryFR91282CPY1CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "UnitedStatesTreasuryFR91282CPY1CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "United States TreasuryFR_91282CPY1"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_UnitedStatesTreasuryFR91282CQP9CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "UnitedStatesTreasuryFR91282CQP9CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "United States TreasuryFR_91282CQP9"
       }
      }
     },
     "auth_ref": []
    },
    "oef_UpdPerfInfoLocationTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "UpdPerfInfoLocationTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Updated Performance Information Location [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r39"
     ]
    },
    "oef_UpdProspectusEmailAddress": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "UpdProspectusEmailAddress",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Updated Prospectus Email Address"
       }
      }
     },
     "auth_ref": [
      "r56"
     ]
    },
    "oef_UpdProspectusPhoneNumber": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "UpdProspectusPhoneNumber",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Updated Prospectus Phone Number"
       }
      }
     },
     "auth_ref": [
      "r56"
     ]
    },
    "oef_UpdProspectusWebAddress": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "UpdProspectusWebAddress",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReport"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Updated Prospectus Web Address"
       }
      }
     },
     "auth_ref": [
      "r56"
     ]
    },
    "brighthouse_VENTUREGLOBALPLAQUEFR922966AD8CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "VENTUREGLOBALPLAQUEFR922966AD8CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "VENTURE GLOBAL PLAQUEFR_922966AD8"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_ValmontIndustriesIncFR920253101CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "ValmontIndustriesIncFR920253101CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Valmont Industries, Inc.FR_920253101"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_VertivHoldingsCoFR92537N108CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "VertivHoldingsCoFR92537N108CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Vertiv Holdings Co.FR_92537N108"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_VertoCapitalCompartmentBFR92543WG1200000002026Minus07Minus01CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "VertoCapitalCompartmentBFR92543WG1200000002026Minus07Minus01CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Verto Capital Compartment BFR_92543WG12_0.000000_2026-07-01"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_ViasatIncFR92552V100CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "ViasatIncFR92552V100CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Viasat, Inc.FR_92552V100"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_VisaIncFR92826C839CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "VisaIncFR92826C839CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Visa, Inc.FR_92826C839"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_WatersCorpFR941848103CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "WatersCorpFR941848103CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Waters Corp.FR_941848103"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_WellsFargoCoFR949746101CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "WellsFargoCoFR949746101CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Wells Fargo &amp; Co.FR_949746101"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_WesternAssetManagementStrategicBondOpportunitiesPortfolioFR10923R707CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "WesternAssetManagementStrategicBondOpportunitiesPortfolioFR10923R707CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Western Asset Management Strategic Bond Opportunities PortfolioFR_10923R707"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_WesternAssetManagementUSGovernmentPortfolioFR10923R871CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "WesternAssetManagementUSGovernmentPortfolioFR10923R871CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Western Asset Management U.S. Government PortfolioFR_10923R871"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_WhiteMountainsInsuranceGroupLtdFRG9618E107CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "WhiteMountainsInsuranceGroupLtdFRG9618E107CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "White Mountains Insurance Group Ltd.FR_G9618E107"
       }
      }
     },
     "auth_ref": []
    },
    "oef_WithSalesLoadMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "WithSalesLoadMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "With Sales Load [Member]"
       }
      }
     },
     "auth_ref": [
      "r40"
     ]
    },
    "oef_WithoutSalesLoadMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/oef/2025",
     "localname": "WithoutSalesLoadMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Without Sales Load [Member]"
       }
      }
     },
     "auth_ref": [
      "r40"
     ]
    },
    "brighthouse_XPOIncFR983793100CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "XPOIncFR983793100CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "XPO, Inc.FR_983793100"
       }
      }
     },
     "auth_ref": []
    },
    "brighthouse_YETIHoldingsIncFR98585X104CTIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://brighthouse/20260630",
     "localname": "YETIHoldingsIncFR98585X104CTIMember",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "YETI Holdings, Inc.FR_98585X104"
       }
      }
     },
     "auth_ref": []
    },
    "country_ZA": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/country/2025",
     "localname": "ZA",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "South Africa"
       }
      }
     },
     "auth_ref": []
    },
    "country_ZM": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/country/2025",
     "localname": "ZM",
     "presentation": [
      "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Zambia"
       }
      }
     },
     "auth_ref": []
    }
   }
  }
 },
 "std_ref": {
  "r0": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "SubTopic": "30",
   "Topic": "205",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479910/205-30-50-1"
  },
  "r1": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(b)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478795/946-210-50-1"
  },
  "r2": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(c)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478795/946-210-50-1"
  },
  "r3": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(c)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478795/946-210-50-1"
  },
  "r4": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6",
   "Subparagraph": "(a)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478795/946-210-50-6"
  },
  "r5": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478795/946-210-50-6"
  },
  "r6": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.12-12(Column A)(Footnote 1))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-1"
  },
  "r7": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.12-12(Column C)(Footnote 5))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-1"
  },
  "r8": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "2",
   "Subparagraph": "(SX 210.12-12A(Column C)(Footnote 4))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-2"
  },
  "r9": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "3",
   "Subparagraph": "(SX 210.12-12B(Column A)(Footnote 7))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-3"
  },
  "r10": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "3",
   "Subparagraph": "(SX 210.12-12B(Column C)(Footnote 2))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-3"
  },
  "r11": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "5D",
   "Subparagraph": "(SX 210.12-13D(Column A)(Footnote 2)(i))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-5D"
  },
  "r12": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "6",
   "Subparagraph": "(SX 210.12-14(Column F)(Footnote 7))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-6"
  },
  "r13": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "7",
   "Subparagraph": "(SX 210.12-15(Column A))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-7"
  },
  "r14": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "7",
   "Subparagraph": "(SX 210.12-15(Column B))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-7"
  },
  "r15": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "7",
   "Subparagraph": "(SX 210.12-15(Column C))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-7"
  },
  "r16": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "7",
   "Subparagraph": "(SX 210.12-15(Column D))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-7"
  },
  "r17": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "1",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477439/946-210-55-1"
  },
  "r18": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Exchange Act",
   "Number": "240",
   "Section": "12",
   "Subsection": "b-2"
  },
  "r19": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Exchange Act",
   "Number": "240",
   "Section": "12",
   "Subsection": "d1-1"
  },
  "r20": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-1A",
   "Section": "1",
   "Subsection": "a",
   "Paragraph": "1"
  },
  "r21": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-1A",
   "Section": "27A",
   "Subsection": "b",
   "Paragraph": "1"
  },
  "r22": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-1A",
   "Section": "27A",
   "Subsection": "b",
   "Paragraph": "3"
  },
  "r23": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-1A",
   "Section": "27A",
   "Subsection": "b",
   "Paragraph": "4"
  },
  "r24": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-1A",
   "Section": "27A",
   "Subsection": "b",
   "Paragraph": "5"
  },
  "r25": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-1A",
   "Section": "27A",
   "Subsection": "b",
   "Paragraph": "instruction",
   "Subparagraph": "2"
  },
  "r26": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-1A",
   "Section": "27A",
   "Subsection": "c"
  },
  "r27": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-1A",
   "Section": "27A",
   "Subsection": "c",
   "Paragraph": "ii"
  },
  "r28": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-1A",
   "Section": "27A",
   "Subsection": "c",
   "Paragraph": "iii"
  },
  "r29": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-1A",
   "Section": "27A",
   "Subsection": "c",
   "Paragraph": "instruction",
   "Sentence": "1",
   "Clause": "b"
  },
  "r30": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-1A",
   "Section": "27A",
   "Subsection": "c",
   "Paragraph": "instruction",
   "Subparagraph": "1",
   "Clause": "c"
  },
  "r31": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-1A",
   "Section": "27A",
   "Subsection": "c",
   "Paragraph": "instruction",
   "Subparagraph": "1",
   "Clause": "d"
  },
  "r32": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-1A",
   "Section": "27A",
   "Subsection": "d",
   "Paragraph": "1"
  },
  "r33": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-1A",
   "Section": "27A",
   "Subsection": "d",
   "Paragraph": "2"
  },
  "r34": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-1A",
   "Section": "27A",
   "Subsection": "d",
   "Paragraph": "2",
   "Subparagraph": "i"
  },
  "r35": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-1A",
   "Section": "27A",
   "Subsection": "d",
   "Paragraph": "2",
   "Subparagraph": "iii",
   "Clause": "B"
  },
  "r36": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-1A",
   "Section": "27A",
   "Subsection": "d",
   "Paragraph": "2",
   "Subparagraph": "iiii",
   "Clause": "A"
  },
  "r37": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-1A",
   "Section": "27A",
   "Subsection": "d",
   "Paragraph": "2",
   "Subparagraph": "instruction",
   "Clause": "12"
  },
  "r38": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-1A",
   "Section": "27A",
   "Subsection": "d",
   "Paragraph": "2",
   "Subparagraph": "instruction",
   "Clause": "14"
  },
  "r39": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-1A",
   "Section": "27A",
   "Subsection": "d",
   "Paragraph": "2",
   "Subparagraph": "instruction",
   "Clause": "15"
  },
  "r40": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-1A",
   "Section": "27A",
   "Subsection": "d",
   "Paragraph": "2",
   "Subparagraph": "instruction",
   "Clause": "7"
  },
  "r41": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-1A",
   "Section": "27A",
   "Subsection": "d",
   "Paragraph": "2",
   "Subparagraph": "instruction",
   "Clause": "8"
  },
  "r42": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-1A",
   "Section": "27A",
   "Subsection": "d",
   "Paragraph": "3"
  },
  "r43": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-1A",
   "Section": "27A",
   "Subsection": "d",
   "Paragraph": "4"
  },
  "r44": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-1A",
   "Section": "27A",
   "Subsection": "d",
   "Paragraph": "4",
   "Subparagraph": "instruction",
   "Clause": "3"
  },
  "r45": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-1A",
   "Section": "27A",
   "Subsection": "d",
   "Paragraph": "4",
   "Subparagraph": "instruction",
   "Clause": "4"
  },
  "r46": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-1A",
   "Section": "27A",
   "Subsection": "e"
  },
  "r47": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-1A",
   "Section": "27A",
   "Subsection": "e",
   "Paragraph": "instruction",
   "Subparagraph": "6"
  },
  "r48": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-1A",
   "Section": "27A",
   "Subsection": "f"
  },
  "r49": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-1A",
   "Section": "27A",
   "Subsection": "g"
  },
  "r50": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-1A",
   "Section": "27A",
   "Subsection": "g",
   "Paragraph": "1"
  },
  "r51": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-1A",
   "Section": "27A",
   "Subsection": "g",
   "Paragraph": "2"
  },
  "r52": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-1A",
   "Section": "27A",
   "Subsection": "g",
   "Paragraph": "3"
  },
  "r53": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-1A",
   "Section": "27A",
   "Subsection": "g",
   "Paragraph": "4"
  },
  "r54": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-1A",
   "Section": "27A",
   "Subsection": "g",
   "Paragraph": "5"
  },
  "r55": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-1A",
   "Section": "27A",
   "Subsection": "g",
   "Paragraph": "6"
  },
  "r56": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-1A",
   "Section": "27A",
   "Subsection": "g",
   "Paragraph": "instruction",
   "Subparagraph": "2"
  },
  "r57": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-1A",
   "Section": "27A",
   "Subsection": "h",
   "Paragraph": "1"
  },
  "r58": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-1A",
   "Section": "27A",
   "Subsection": "h",
   "Paragraph": "2"
  },
  "r59": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-1A",
   "Section": "3",
   "Subsection": "instruction",
   "Paragraph": "1",
   "Subparagraph": "d",
   "Sentence": "i"
  },
  "r60": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-1A",
   "Section": "4",
   "Subsection": "b",
   "Paragraph": "2",
   "Subparagraph": "i"
  },
  "r61": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-1A",
   "Section": "4",
   "Subsection": "b",
   "Paragraph": "2",
   "Subparagraph": "iii"
  },
  "r62": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-T",
   "Number": "232",
   "Section": "313"
  },
  "r63": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "946",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "27",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478494/946-205-50-27"
  }
 }
}
