{
 "version": "2.2",
 "instance": {
  "brka-20251231.htm": {
   "nsprefix": "brka",
   "nsuri": "http://www.berkshirehathaway.com/20251231",
   "dts": {
    "inline": {
     "local": [
      "brka-20251231.htm"
     ]
    },
    "schema": {
     "local": [
      "brka-20251231.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/esma-arcrole-2018-11-21.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/2023/calculation-1.1.xsd",
      "https://www.xbrl.org/dtr/type/2020-01-21/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/ebp/elts/us-gaap-ebp-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/dei/2025/dei-2025.xsd",
      "https://xbrl.sec.gov/stpr/2025/stpr-2025.xsd"
     ]
    }
   },
   "keyStandard": 72,
   "keyCustom": 30,
   "axisStandard": 7,
   "axisCustom": 0,
   "memberStandard": 12,
   "memberCustom": 4,
   "hidden": {
    "total": 99,
    "http://fasb.org/us-gaap-ebp/2025": 95,
    "http://xbrl.sec.gov/dei/2025": 4
   },
   "contextCount": 107,
   "entityCount": 1,
   "segmentCount": 16,
   "elementCount": 168,
   "unitCount": 3,
   "baseTaxonomies": {
    "http://fasb.org/us-gaap-ebp/2025": 230,
    "http://xbrl.sec.gov/dei/2025": 9
   },
   "report": {
    "R1": {
     "role": "http://www.berkshirehathaway.com/20251231/taxonomy/role/DocumentDocumentAndEntityInformation",
     "longName": "75000 - Document - Document and Entity Information",
     "shortName": "Document and Entity Information",
     "isDefault": "true",
     "groupType": "document",
     "subGroupType": "",
     "menuCat": "Cover",
     "order": "1",
     "firstAnchor": {
      "contextRef": "C_f3b7ec90-559a-4c6d-8a3c-f6014780e9b1",
      "name": "dei:DocumentPeriodEndDate",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "span",
       "p",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "C_f3b7ec90-559a-4c6d-8a3c-f6014780e9b1",
      "name": "dei:DocumentPeriodEndDate",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "span",
       "p",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "first": true,
      "unique": true
     }
    },
    "R2": {
     "role": "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementsOfNetAssetsAvailableForBenefits",
     "longName": "75010 - Statement - Statements of Net Assets Available for Benefits",
     "shortName": "Statements of Net Assets Available for Benefits",
     "isDefault": "false",
     "groupType": "statement",
     "subGroupType": "",
     "menuCat": "Statements",
     "order": "2",
     "firstAnchor": {
      "contextRef": "C_edd34a3c-f622-4685-a3ee-9fd79e2270c3",
      "name": "us-gaap-ebp:EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustFairValue",
      "unitRef": "U_USD",
      "xsiNil": "false",
      "lang": null,
      "decimals": "0",
      "ancestors": [
       "span",
       "p",
       "td",
       "tr",
       "table",
       "us-gaap-ebp:EmployeeBenefitPlanInvestmentFairValueAndNavTableTextBlock",
       "div",
       "ix:continuation",
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "first": true
     },
     "uniqueAnchor": {
      "contextRef": "C_edd34a3c-f622-4685-a3ee-9fd79e2270c3",
      "name": "us-gaap-ebp:EmployeeBenefitPlanNoteReceivableFromParticipant",
      "unitRef": "U_USD",
      "xsiNil": "false",
      "lang": null,
      "decimals": "0",
      "ancestors": [
       "span",
       "p",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "unique": true
     }
    },
    "R3": {
     "role": "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementOfChangesInNetAssetsAvailableForBenefits",
     "longName": "75020 - Statement - Statement of Changes in Net Assets Available For Benefits",
     "shortName": "Statement of Changes in Net Assets Available For Benefits",
     "isDefault": "false",
     "groupType": "statement",
     "subGroupType": "",
     "menuCat": "Statements",
     "order": "3",
     "firstAnchor": {
      "contextRef": "C_f7439ef0-8266-42ec-be08-6ee60ae58d8e",
      "name": "us-gaap-ebp:EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForParticipantContributionExcludingRollover",
      "unitRef": "U_USD",
      "xsiNil": "false",
      "lang": null,
      "decimals": "0",
      "ancestors": [
       "span",
       "p",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "C_f7439ef0-8266-42ec-be08-6ee60ae58d8e",
      "name": "us-gaap-ebp:EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForParticipantContributionExcludingRollover",
      "unitRef": "U_USD",
      "xsiNil": "false",
      "lang": null,
      "decimals": "0",
      "ancestors": [
       "span",
       "p",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "first": true,
      "unique": true
     }
    },
    "R4": {
     "role": "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlan",
     "longName": "75030 - Disclosure - Description of Plan",
     "shortName": "Description of Plan",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "",
     "menuCat": "Notes",
     "order": "4",
     "firstAnchor": {
      "contextRef": "C_f7439ef0-8266-42ec-be08-6ee60ae58d8e",
      "name": "us-gaap-ebp:EmployeeBenefitPlanDescriptionOfPlanTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "C_f7439ef0-8266-42ec-be08-6ee60ae58d8e",
      "name": "us-gaap-ebp:EmployeeBenefitPlanDescriptionOfPlanTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "first": true,
      "unique": true
     }
    },
    "R5": {
     "role": "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPolicies",
     "longName": "75040 - Disclosure - Summary of Significant Accounting Policies",
     "shortName": "Summary of Significant Accounting Policies",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "",
     "menuCat": "Notes",
     "order": "5",
     "firstAnchor": {
      "contextRef": "C_f7439ef0-8266-42ec-be08-6ee60ae58d8e",
      "name": "us-gaap-ebp:EmployeeBenefitPlanSummaryOfAccountingPolicyTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "C_f7439ef0-8266-42ec-be08-6ee60ae58d8e",
      "name": "us-gaap-ebp:EmployeeBenefitPlanSummaryOfAccountingPolicyTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "first": true,
      "unique": true
     }
    },
    "R6": {
     "role": "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueOfMeasurements",
     "longName": "75050 - Disclosure - Fair Value of Measurements",
     "shortName": "Fair Value of Measurements",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "",
     "menuCat": "Notes",
     "order": "6",
     "firstAnchor": {
      "contextRef": "C_f7439ef0-8266-42ec-be08-6ee60ae58d8e",
      "name": "us-gaap-ebp:EmployeeBenefitPlanInvestmentFairValueAndNavTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "C_f7439ef0-8266-42ec-be08-6ee60ae58d8e",
      "name": "us-gaap-ebp:EmployeeBenefitPlanInvestmentFairValueAndNavTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "first": true,
      "unique": true
     }
    },
    "R7": {
     "role": "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFederalIncomeTaxStatus",
     "longName": "75060 - Disclosure - Federal Income Tax Status",
     "shortName": "Federal Income Tax Status",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "",
     "menuCat": "Notes",
     "order": "7",
     "firstAnchor": {
      "contextRef": "C_f7439ef0-8266-42ec-be08-6ee60ae58d8e",
      "name": "us-gaap-ebp:EmployeeBenefitPlanTaxStatusTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "C_f7439ef0-8266-42ec-be08-6ee60ae58d8e",
      "name": "us-gaap-ebp:EmployeeBenefitPlanTaxStatusTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "first": true,
      "unique": true
     }
    },
    "R8": {
     "role": "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosurePlanTermination",
     "longName": "75070 - Disclosure - Plan Termination",
     "shortName": "Plan Termination",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "",
     "menuCat": "Notes",
     "order": "8",
     "firstAnchor": {
      "contextRef": "C_f7439ef0-8266-42ec-be08-6ee60ae58d8e",
      "name": "us-gaap-ebp:EmployeeBenefitPlanPlanTerminationTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "C_f7439ef0-8266-42ec-be08-6ee60ae58d8e",
      "name": "us-gaap-ebp:EmployeeBenefitPlanPlanTerminationTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "first": true,
      "unique": true
     }
    },
    "R9": {
     "role": "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureRelatedpartyTransactionsAndExemptPartyininterestTransactions",
     "longName": "75080 - Disclosure - Related-Party Transactions and Exempt Party-In-Interest Transactions",
     "shortName": "Related-Party Transactions and Exempt Party-In-Interest Transactions",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "",
     "menuCat": "Notes",
     "order": "9",
     "firstAnchor": {
      "contextRef": "C_f7439ef0-8266-42ec-be08-6ee60ae58d8e",
      "name": "us-gaap-ebp:EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "C_f7439ef0-8266-42ec-be08-6ee60ae58d8e",
      "name": "us-gaap-ebp:EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "first": true,
      "unique": true
     }
    },
    "R10": {
     "role": "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureNonexemptPartyininterestTransactions",
     "longName": "75090 - Disclosure - Nonexempt Party-In-Interest Transactions",
     "shortName": "Nonexempt Party-In-Interest Transactions",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "",
     "menuCat": "Notes",
     "order": "10",
     "firstAnchor": {
      "contextRef": "C_f7439ef0-8266-42ec-be08-6ee60ae58d8e",
      "name": "brka:EmployeeBenefitPlanNonexemptParty-In-InterestTransactionsTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "C_f7439ef0-8266-42ec-be08-6ee60ae58d8e",
      "name": "brka:EmployeeBenefitPlanNonexemptParty-In-InterestTransactionsTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "first": true,
      "unique": true
     }
    },
    "R11": {
     "role": "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfAssetsHeldAtEndOfYear",
     "longName": "75100 - Disclosure - Schedule of Assets (Held at End of Year)",
     "shortName": "Schedule of Assets (Held at End of Year)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "",
     "menuCat": "Notes",
     "order": "11",
     "firstAnchor": {
      "contextRef": "C_f7439ef0-8266-42ec-be08-6ee60ae58d8e",
      "name": "brka:EmployeeBenefitPlanScheduleOfAssetsTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "C_f7439ef0-8266-42ec-be08-6ee60ae58d8e",
      "name": "brka:EmployeeBenefitPlanScheduleOfAssetsTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "first": true,
      "unique": true
     }
    },
    "R12": {
     "role": "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfDelinquentParticipantContributions1",
     "longName": "75110 - Disclosure - Schedule of Delinquent Participant Contributions",
     "shortName": "Schedule of Delinquent Participant Contributions",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "",
     "menuCat": "Notes",
     "order": "12",
     "firstAnchor": {
      "contextRef": "C_f7439ef0-8266-42ec-be08-6ee60ae58d8e",
      "name": "brka:EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "C_f7439ef0-8266-42ec-be08-6ee60ae58d8e",
      "name": "brka:EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "first": true,
      "unique": true
     }
    },
    "R13": {
     "role": "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureSignificantAccountingPoliciesPolicies",
     "longName": "75120 - Disclosure - Significant Accounting Policies (Policies)",
     "shortName": "Significant Accounting Policies (Policies)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "policies",
     "menuCat": "Policies",
     "order": "13",
     "firstAnchor": {
      "contextRef": "C_f7439ef0-8266-42ec-be08-6ee60ae58d8e",
      "name": "us-gaap-ebp:EmployeeBenefitPlanBasisOfAccountingPolicyTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "div",
       "us-gaap-ebp:EmployeeBenefitPlanSummaryOfAccountingPolicyTextBlock",
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "C_f7439ef0-8266-42ec-be08-6ee60ae58d8e",
      "name": "us-gaap-ebp:EmployeeBenefitPlanBasisOfAccountingPolicyTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "div",
       "us-gaap-ebp:EmployeeBenefitPlanSummaryOfAccountingPolicyTextBlock",
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "first": true,
      "unique": true
     }
    },
    "R14": {
     "role": "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueOfMeasurementsTables",
     "longName": "75130 - Disclosure - Fair Value of Measurements (Tables)",
     "shortName": "Fair Value of Measurements (Tables)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "tables",
     "menuCat": "Tables",
     "order": "14",
     "firstAnchor": {
      "contextRef": "C_f7439ef0-8266-42ec-be08-6ee60ae58d8e",
      "name": "us-gaap-ebp:EmployeeBenefitPlanInvestmentFairValueAndNavTableTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "div",
       "ix:continuation",
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "C_f7439ef0-8266-42ec-be08-6ee60ae58d8e",
      "name": "us-gaap-ebp:EmployeeBenefitPlanInvestmentFairValueAndNavTableTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "div",
       "ix:continuation",
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "first": true,
      "unique": true
     }
    },
    "R15": {
     "role": "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfAssetsHeldAtEndOfYearTables",
     "longName": "75140 - Disclosure - Schedule of Assets (Held at End of Year) (Tables)",
     "shortName": "Schedule of Assets (Held at End of Year) (Tables)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "tables",
     "menuCat": "Tables",
     "order": "15",
     "firstAnchor": {
      "contextRef": "C_f7439ef0-8266-42ec-be08-6ee60ae58d8e",
      "name": "us-gaap-ebp:EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTableTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "div",
       "brka:EmployeeBenefitPlanScheduleOfAssetsTextBlock",
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "C_f7439ef0-8266-42ec-be08-6ee60ae58d8e",
      "name": "us-gaap-ebp:EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTableTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "div",
       "brka:EmployeeBenefitPlanScheduleOfAssetsTextBlock",
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "first": true,
      "unique": true
     }
    },
    "R16": {
     "role": "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfDelinquentParticipantContributionsTables",
     "longName": "75150 - Disclosure - Schedule of Delinquent Participant Contributions (Tables)",
     "shortName": "Schedule of Delinquent Participant Contributions (Tables)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "tables",
     "menuCat": "Tables",
     "order": "16",
     "firstAnchor": {
      "contextRef": "C_f7439ef0-8266-42ec-be08-6ee60ae58d8e",
      "name": "us-gaap-ebp:EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionTableTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "div",
       "brka:EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionTextBlock",
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "C_f7439ef0-8266-42ec-be08-6ee60ae58d8e",
      "name": "us-gaap-ebp:EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionTableTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "div",
       "brka:EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionTextBlock",
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "first": true,
      "unique": true
     }
    },
    "R17": {
     "role": "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlanAdditionalInformationDetails",
     "longName": "75160 - Disclosure - Description of Plan - Additional Information (Details)",
     "shortName": "Description of Plan - Additional Information (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "17",
     "firstAnchor": {
      "contextRef": "C_f7439ef0-8266-42ec-be08-6ee60ae58d8e",
      "name": "us-gaap-ebp:EmployeeBenefitPlanParticipantContributionAutomaticDeferralRate",
      "unitRef": "U_pure",
      "xsiNil": "false",
      "lang": null,
      "decimals": "2",
      "ancestors": [
       "span",
       "p",
       "us-gaap-ebp:EmployeeBenefitPlanDescriptionOfPlanTextBlock",
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "C_f7439ef0-8266-42ec-be08-6ee60ae58d8e",
      "name": "us-gaap-ebp:EmployeeBenefitPlanParticipantContributionAutomaticDeferralRate",
      "unitRef": "U_pure",
      "xsiNil": "false",
      "lang": null,
      "decimals": "2",
      "ancestors": [
       "span",
       "p",
       "us-gaap-ebp:EmployeeBenefitPlanDescriptionOfPlanTextBlock",
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "first": true,
      "unique": true
     }
    },
    "R18": {
     "role": "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesAdditionalInformationDetails",
     "longName": "75170 - Disclosure - Summary of Significant Accounting Policies - Additional Information (Details)",
     "shortName": "Summary of Significant Accounting Policies - Additional Information (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "18",
     "firstAnchor": {
      "contextRef": "C_f7439ef0-8266-42ec-be08-6ee60ae58d8e",
      "name": "brka:EmployeeBenefitPlanAnnualFeesPerParticipant",
      "unitRef": "U_USD",
      "xsiNil": "false",
      "lang": null,
      "decimals": "0",
      "ancestors": [
       "span",
       "p",
       "us-gaap-ebp:EmployeeBenefitPlanExpensePolicyTextBlock",
       "div",
       "ix:continuation",
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "C_f7439ef0-8266-42ec-be08-6ee60ae58d8e",
      "name": "brka:EmployeeBenefitPlanAnnualFeesPerParticipant",
      "unitRef": "U_USD",
      "xsiNil": "false",
      "lang": null,
      "decimals": "0",
      "ancestors": [
       "span",
       "p",
       "us-gaap-ebp:EmployeeBenefitPlanExpensePolicyTextBlock",
       "div",
       "ix:continuation",
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "first": true,
      "unique": true
     }
    },
    "R19": {
     "role": "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfPlansInvestmentsMeasuredAtFairValueOnRecurringBasisDetails",
     "longName": "75180 - Disclosure - Fair Value Measurements - Summary of Plan\"s Investments measured at Fair Value on Recurring Basis (Details)",
     "shortName": "Fair Value Measurements - Summary of Plan\"s Investments measured at Fair Value on Recurring Basis (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "19",
     "firstAnchor": {
      "contextRef": "C_edd34a3c-f622-4685-a3ee-9fd79e2270c3",
      "name": "us-gaap-ebp:EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustFairValue",
      "unitRef": "U_USD",
      "xsiNil": "false",
      "lang": null,
      "decimals": "0",
      "ancestors": [
       "span",
       "p",
       "td",
       "tr",
       "table",
       "us-gaap-ebp:EmployeeBenefitPlanInvestmentFairValueAndNavTableTextBlock",
       "div",
       "ix:continuation",
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "first": true
     },
     "uniqueAnchor": {
      "contextRef": "C_c9dd9fec-2fa9-4a65-9e63-f914151da656",
      "name": "us-gaap-ebp:EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustFairValue",
      "unitRef": "U_USD",
      "xsiNil": "false",
      "lang": null,
      "decimals": "0",
      "ancestors": [
       "span",
       "p",
       "td",
       "tr",
       "table",
       "us-gaap-ebp:EmployeeBenefitPlanInvestmentFairValueAndNavTableTextBlock",
       "div",
       "ix:continuation",
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "unique": true
     }
    },
    "R20": {
     "role": "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfPlanInvestmentsWithReportedNavDetails",
     "longName": "75190 - Disclosure - Fair Value Measurements - Summary of Plan Investments with Reported NAV (Details)",
     "shortName": "Fair Value Measurements - Summary of Plan Investments with Reported NAV (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "20",
     "firstAnchor": {
      "contextRef": "C_edd34a3c-f622-4685-a3ee-9fd79e2270c3",
      "name": "us-gaap-ebp:EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustFairValue",
      "unitRef": "U_USD",
      "xsiNil": "false",
      "lang": null,
      "decimals": "0",
      "ancestors": [
       "span",
       "p",
       "td",
       "tr",
       "table",
       "us-gaap-ebp:EmployeeBenefitPlanInvestmentFairValueAndNavTableTextBlock",
       "div",
       "ix:continuation",
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "first": true
     },
     "uniqueAnchor": {
      "contextRef": "C_8aeb35c7-1740-4bee-bf0c-d4d29ef3de73",
      "name": "brka:EmployeeBenefitPlanFairValueInvestmentNetAssetValueRedemptionFrequency",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "span",
       "p",
       "td",
       "tr",
       "table",
       "brka:SummaryOfPlanInvestmentsWithReportedNAVTableTextBlock",
       "div",
       "ix:continuation",
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "unique": true
     }
    },
    "R21": {
     "role": "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFederalIncomeTaxStatusAdditionalInformationDetails",
     "longName": "75200 - Disclosure - Federal Income Tax Status - Additional Information (Details)",
     "shortName": "Federal Income Tax Status - Additional Information (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "21",
     "firstAnchor": {
      "contextRef": "C_f7439ef0-8266-42ec-be08-6ee60ae58d8e",
      "name": "us-gaap-ebp:EmployeeBenefitPlanTaxDeterminationLetterDate",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "span",
       "p",
       "us-gaap-ebp:EmployeeBenefitPlanTaxStatusTextBlock",
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "C_f7439ef0-8266-42ec-be08-6ee60ae58d8e",
      "name": "us-gaap-ebp:EmployeeBenefitPlanTaxDeterminationLetterDate",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "span",
       "p",
       "us-gaap-ebp:EmployeeBenefitPlanTaxStatusTextBlock",
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "first": true,
      "unique": true
     }
    },
    "R22": {
     "role": "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureRelatedpartyTransactionsAndExemptPartyininterestTransactionsAdditionalInformationDetails",
     "longName": "75210 - Disclosure - Related-Party Transactions and Exempt Party-In-Interest Transactions - Additional Information (Details)",
     "shortName": "Related-Party Transactions and Exempt Party-In-Interest Transactions - Additional Information (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "22",
     "firstAnchor": {
      "contextRef": "C_5c44c78b-aec4-4350-be1b-7ee92c3a71b5",
      "name": "us-gaap-ebp:EmployeeBenefitPlanInvestmentNumberOfShares",
      "unitRef": "U_shares",
      "xsiNil": "false",
      "lang": null,
      "decimals": "INF",
      "ancestors": [
       "span",
       "p",
       "us-gaap-ebp:EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsTextBlock",
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "C_5c44c78b-aec4-4350-be1b-7ee92c3a71b5",
      "name": "us-gaap-ebp:EmployeeBenefitPlanInvestmentNumberOfShares",
      "unitRef": "U_shares",
      "xsiNil": "false",
      "lang": null,
      "decimals": "INF",
      "ancestors": [
       "span",
       "p",
       "us-gaap-ebp:EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsTextBlock",
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "first": true,
      "unique": true
     }
    },
    "R23": {
     "role": "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureNonexemptPartyininterestTransactionsAdditionalInformationDetails",
     "longName": "75220 - Disclosure - Nonexempt Party-In-Interest Transactions - Additional Information (Details)",
     "shortName": "Nonexempt Party-In-Interest Transactions - Additional Information (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "23",
     "firstAnchor": {
      "contextRef": "C_403599ca-c239-453e-883d-8845cf43020a",
      "name": "brka:ParticipantContributionsAndLoanPayments",
      "unitRef": "U_USD",
      "xsiNil": "false",
      "lang": null,
      "decimals": "0",
      "ancestors": [
       "span",
       "p",
       "brka:EmployeeBenefitPlanNonexemptParty-In-InterestTransactionsTextBlock",
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "C_403599ca-c239-453e-883d-8845cf43020a",
      "name": "brka:ParticipantContributionsAndLoanPayments",
      "unitRef": "U_USD",
      "xsiNil": "false",
      "lang": null,
      "decimals": "0",
      "ancestors": [
       "span",
       "p",
       "brka:EmployeeBenefitPlanNonexemptParty-In-InterestTransactionsTextBlock",
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "first": true,
      "unique": true
     }
    },
    "R24": {
     "role": "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfAssetsHeldAtEndOfYearScheduleOfAssetsDetails",
     "longName": "75230 - Disclosure - Schedule of Assets (Held at End of Year) - Schedule of Assets (Details)",
     "shortName": "Schedule of Assets (Held at End of Year) - Schedule of Assets (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "24",
     "firstAnchor": {
      "contextRef": "C_f7439ef0-8266-42ec-be08-6ee60ae58d8e",
      "name": "us-gaap-ebp:EbpPlanName",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "span",
       "p",
       "brka:EmployeeBenefitPlanScheduleOfAssetsTextBlock",
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "first": true
     },
     "uniqueAnchor": {
      "contextRef": "C_edd34a3c-f622-4685-a3ee-9fd79e2270c3",
      "name": "us-gaap-ebp:EmployeeBenefitPlanAssetHeldForInvestmentParticipantLoanAfterDeemedDistribution",
      "unitRef": "U_USD",
      "xsiNil": "false",
      "lang": null,
      "decimals": "0",
      "ancestors": [
       "span",
       "p",
       "td",
       "tr",
       "table",
       "us-gaap-ebp:EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTableTextBlock",
       "div",
       "brka:EmployeeBenefitPlanScheduleOfAssetsTextBlock",
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "unique": true
     }
    },
    "R25": {
     "role": "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfDelinquentParticipantContributionsDetails",
     "longName": "75240 - Disclosure - Schedule of Delinquent Participant Contributions (Details)",
     "shortName": "Schedule of Delinquent Participant Contributions (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "25",
     "firstAnchor": {
      "contextRef": "C_f7439ef0-8266-42ec-be08-6ee60ae58d8e",
      "name": "us-gaap-ebp:EbpPlanName",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "span",
       "p",
       "brka:EmployeeBenefitPlanScheduleOfAssetsTextBlock",
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "first": true
     },
     "uniqueAnchor": {
      "contextRef": "C_f7439ef0-8266-42ec-be08-6ee60ae58d8e",
      "name": "us-gaap-ebp:EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionNotCorrected",
      "unitRef": "U_USD",
      "xsiNil": "false",
      "lang": null,
      "decimals": "0",
      "ancestors": [
       "span",
       "p",
       "td",
       "tr",
       "table",
       "us-gaap-ebp:EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionTableTextBlock",
       "div",
       "brka:EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionTextBlock",
       "div",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "brka-20251231.htm",
      "unique": true
     }
    }
   },
   "tag": {
    "dei_AmendmentFlag": {
     "xbrltype": "booleanItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2025",
     "localname": "AmendmentFlag",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "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": []
    },
    "brka_CommonStockAndMoneyMarketFundMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.berkshirehathaway.com/20251231",
     "localname": "CommonStockAndMoneyMarketFundMember",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfPlansInvestmentsMeasuredAtFairValueOnRecurringBasisDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Common Stock and Money Market Fund [Member]",
        "documentation": "Common Stock and Money Market Fund.",
        "terseLabel": "Common Stock and Money Market Fund"
       }
      }
     },
     "auth_ref": []
    },
    "dei_CoverAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2025",
     "localname": "CoverAbstract",
     "lang": {
      "en-us": {
       "role": {
        "label": "Cover [Abstract]",
        "documentation": "Cover page."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_DefinedBenefitPlanCommonCollectiveTrustMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2025",
     "localname": "DefinedBenefitPlanCommonCollectiveTrustMember",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfPlanInvestmentsWithReportedNavDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfPlansInvestmentsMeasuredAtFairValueOnRecurringBasisDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Common Collective Trust [Member]",
        "terseLabel": "Collective Trust Funds"
       }
      }
     },
     "auth_ref": [
      "r106",
      "r115",
      "r118",
      "r125"
     ]
    },
    "dei_DocumentFiscalPeriodFocus": {
     "xbrltype": "fiscalPeriodItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2025",
     "localname": "DocumentFiscalPeriodFocus",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Document Fiscal Period Focus",
        "documentation": "Fiscal period values are FY, Q1, Q2, and Q3. 1st, 2nd and 3rd quarter 10-Q or 10-QT statements have value Q1, Q2, and Q3 respectively, with 10-K, 10-KT or other fiscal year statements having FY."
       }
      }
     },
     "auth_ref": []
    },
    "dei_DocumentFiscalYearFocus": {
     "xbrltype": "gYearItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2025",
     "localname": "DocumentFiscalYearFocus",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Document Fiscal Year Focus",
        "documentation": "This is focus fiscal year of the document report in YYYY format. For a 2006 annual report, which may also provide financial information from prior periods, fiscal 2006 should be given as the fiscal year focus. Example: 2006."
       }
      }
     },
     "auth_ref": []
    },
    "dei_DocumentPeriodEndDate": {
     "xbrltype": "dateItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2025",
     "localname": "DocumentPeriodEndDate",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "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://www.berkshirehathaway.com/20251231/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "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": []
    },
    "brka_EBP005Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.berkshirehathaway.com/20251231",
     "localname": "EBP005Member",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlan",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlanAdditionalInformationDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfPlanInvestmentsWithReportedNavDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfPlansInvestmentsMeasuredAtFairValueOnRecurringBasisDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueOfMeasurements",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueOfMeasurementsTables",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFederalIncomeTaxStatus",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFederalIncomeTaxStatusAdditionalInformationDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureNonexemptPartyininterestTransactions",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureNonexemptPartyininterestTransactionsAdditionalInformationDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosurePlanTermination",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureRelatedpartyTransactionsAndExemptPartyininterestTransactions",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureRelatedpartyTransactionsAndExemptPartyininterestTransactionsAdditionalInformationDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfAssetsHeldAtEndOfYear",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfAssetsHeldAtEndOfYearScheduleOfAssetsDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfAssetsHeldAtEndOfYearTables",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfDelinquentParticipantContributions1",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfDelinquentParticipantContributionsDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfDelinquentParticipantContributionsTables",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureSignificantAccountingPoliciesPolicies",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPolicies",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesAdditionalInformationDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementOfChangesInNetAssetsAvailableForBenefits",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementsOfNetAssetsAvailableForBenefits"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP 005 [Member]",
        "terseLabel": "EBP 005",
        "documentation": "EBP 005."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap-ebp_EbpPlanName": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EbpPlanName",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfAssetsHeldAtEndOfYearScheduleOfAssetsDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfDelinquentParticipantContributionsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Plan Name",
        "documentation": "Name of employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r169"
     ]
    },
    "us-gaap-ebp_EbpRiskAndUncertaintyPolicyTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EbpRiskAndUncertaintyPolicyTextBlock",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureSignificantAccountingPoliciesPolicies"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Risk and Uncertainty [Policy Text Block]",
        "terseLabel": "Risks and Uncertainties",
        "documentation": "Disclosure of accounting policy for risk and uncertainty of employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Includes, but is not limited to, concentration risk."
       }
      }
     },
     "auth_ref": [
      "r42",
      "r43"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanAccountingPolicyAbstract",
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Accounting Policy, Accounting Standard Update, and Change in Accounting Principle [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyLineItems": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanAccountingPolicyLineItems",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureSignificantAccountingPoliciesPolicies",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPolicies",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Accounting Policy [Line Items]",
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table."
       }
      }
     },
     "auth_ref": [
      "r170",
      "r178"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyTable": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanAccountingPolicyTable",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureSignificantAccountingPoliciesPolicies",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPolicies",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Accounting Policy [Table]",
        "documentation": "Disclosure of information about accounting policy for employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r170",
      "r178"
     ]
    },
    "brka_EmployeeBenefitPlanAnnualFeesPerParticipant": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.berkshirehathaway.com/20251231",
     "localname": "EmployeeBenefitPlanAnnualFeesPerParticipant",
     "crdr": "credit",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Employee Benefit Plan, Annual Fees Per Participant",
        "documentation": "Employee benefit plan, annual fees per participant.",
        "terseLabel": "Employee benefit plan, annual fees per participant."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap-ebp_EmployeeBenefitPlanAssetAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanAssetAbstract",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementsOfNetAssetsAvailableForBenefits"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Asset [Abstract]",
        "terseLabel": "ASSETS"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestment": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanAssetHeldForInvestment",
     "crdr": "debit",
     "calculation": {
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfAssetsHeldAtEndOfYearScheduleOfAssetsDetails": {
       "parentTag": null,
       "weight": null,
       "order": null,
       "root": true
      }
     },
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfAssetsHeldAtEndOfYearScheduleOfAssetsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Asset Held for Investment",
        "totalLabel": "TOTAL",
        "documentation": "Amount of total assets in schedule of asset held for investment of employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Includes, but is not limited to, current value of investment, participant loan, and plan interest in master trust."
       }
      }
     },
     "auth_ref": [
      "r134",
      "r137"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestmentParticipantLoanAfterDeemedDistribution": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanAssetHeldForInvestmentParticipantLoanAfterDeemedDistribution",
     "crdr": "debit",
     "calculation": {
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfAssetsHeldAtEndOfYearScheduleOfAssetsDetails": {
       "parentTag": "us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestment",
       "weight": 1.0,
       "order": 1.0
      }
     },
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfAssetsHeldAtEndOfYearScheduleOfAssetsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Asset Held for Investment, Participant Loan, after Deemed Distribution",
        "terseLabel": "Notes receivable from participants",
        "documentation": "Amount, after deemed distribution, of participant loan in schedule of asset held for investment of employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r83",
      "r142"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestmentPartyInInterest": {
     "xbrltype": "booleanItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanAssetHeldForInvestmentPartyInInterest",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfAssetsHeldAtEndOfYearScheduleOfAssetsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Asset Held for Investment, Party-in-Interest [true false]",
        "documentation": "Indicates (true false) whether asset held for investment of employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) was transacted with party-in-interest."
       }
      }
     },
     "auth_ref": [
      "r83",
      "r139"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestmentPlanInterestInMasterTrustCurrentValue": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanAssetHeldForInvestmentPlanInterestInMasterTrustCurrentValue",
     "crdr": "debit",
     "calculation": {
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfAssetsHeldAtEndOfYearScheduleOfAssetsDetails": {
       "parentTag": "us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestment",
       "weight": 1.0,
       "order": 0.0
      }
     },
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfAssetsHeldAtEndOfYearScheduleOfAssetsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Asset Held for Investment, Plan Interest in Master Trust, Current Value",
        "terseLabel": "Current Value",
        "documentation": "Current value of plan interest in master trust in schedule of asset held for investment of employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r134",
      "r142"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestmentPlanInterestInMasterTrustParticipationStatusExtensibleEnumeration": {
     "xbrltype": "enumerationSetItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanAssetHeldForInvestmentPlanInterestInMasterTrustParticipationStatusExtensibleEnumeration",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfAssetsHeldAtEndOfYearScheduleOfAssetsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Asset Held for Investment, Plan Interest in Master Trust, Participation Status [Extensible Enumeration]",
        "documentation": "Indicates status of participation by participant for plan interest in master trust in schedule of asset held for investment of employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r134",
      "r143"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanBasisOfAccountingPolicyTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanBasisOfAccountingPolicyTextBlock",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureSignificantAccountingPoliciesPolicies"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Basis of Accounting [Policy Text Block]",
        "terseLabel": "Basis of Accounting",
        "documentation": "Disclosure of accounting policy for basis of accounting used to prepare financial statements of employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r170",
      "r178"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecrease": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecrease",
     "crdr": "credit",
     "calculation": {
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementOfChangesInNetAssetsAvailableForBenefits": {
       "parentTag": "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecrease",
       "weight": -1.0,
       "order": 1.0
      }
     },
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementOfChangesInNetAssetsAvailableForBenefits"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Change in Net Asset Available for Benefit, Decrease",
        "totalLabel": "Total deductions",
        "documentation": "Amount of decrease in net asset available for benefit to participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r126",
      "r135"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecreaseAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecreaseAbstract",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementOfChangesInNetAssetsAvailableForBenefits"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Change in Net Asset Available for Benefit, Decrease [Abstract]",
        "terseLabel": "DEDUCTIONS:"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecreaseForAdministrativeExpense": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecreaseForAdministrativeExpense",
     "crdr": "credit",
     "calculation": {
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementOfChangesInNetAssetsAvailableForBenefits": {
       "parentTag": "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecrease",
       "weight": 1.0,
       "order": 1.0
      }
     },
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementOfChangesInNetAssetsAvailableForBenefits"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Change in Net Asset Available for Benefit, Decrease from Administrative Expense",
        "terseLabel": "Administrative expenses paid on behalf of the plan",
        "verboseLabel": "Administrative expenses, net of revenue sharing",
        "documentation": "Amount of decrease in net asset available for benefit from administrative expense incurred by employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r51",
      "r85",
      "r126"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecreaseForPaymentToParticipant": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecreaseForPaymentToParticipant",
     "crdr": "credit",
     "calculation": {
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementOfChangesInNetAssetsAvailableForBenefits": {
       "parentTag": "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecrease",
       "weight": 1.0,
       "order": 0.0
      }
     },
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementOfChangesInNetAssetsAvailableForBenefits"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Change in Net Asset Available for Benefit, Decrease from Payment to Participant",
        "terseLabel": "Benefits paid to participants",
        "documentation": "Amount of decrease in net asset available for benefit from payment of benefit to participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)), including, but not limited to, withdrawal."
       }
      }
     },
     "auth_ref": [
      "r50",
      "r79",
      "r85",
      "r94",
      "r126"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncrease": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncrease",
     "crdr": "debit",
     "calculation": {
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementOfChangesInNetAssetsAvailableForBenefits": {
       "parentTag": "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecrease",
       "weight": 1.0,
       "order": 0.0
      }
     },
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementOfChangesInNetAssetsAvailableForBenefits"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Change in Net Asset Available for Benefit, Increase",
        "totalLabel": "Total additions",
        "documentation": "Amount of increase in net asset available for benefit to participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r126",
      "r135"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseAbstract",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementOfChangesInNetAssetsAvailableForBenefits"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Change in Net Asset Available for Benefit, Increase [Abstract]",
        "terseLabel": "ADDITIONS:"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecrease": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecrease",
     "crdr": "debit",
     "calculation": {
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementOfChangesInNetAssetsAvailableForBenefits": {
       "parentTag": null,
       "weight": null,
       "order": null,
       "root": true
      }
     },
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementOfChangesInNetAssetsAvailableForBenefits"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Change in Net Asset Available for Benefit, Increase (Decrease)",
        "terseLabel": "Net increase in net assets available for benefits per the financial statements",
        "totalLabel": "INCREASE IN NET ASSETS",
        "documentation": "Amount of increase (decrease) in net asset available for benefit to participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r0",
      "r85",
      "r126",
      "r181"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForGainLossOnInvestment": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForGainLossOnInvestment",
     "crdr": "debit",
     "calculation": {
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementOfChangesInNetAssetsAvailableForBenefits": {
       "parentTag": "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForIncomeLossOnInvestment",
       "weight": 1.0,
       "order": 1.0
      }
     },
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementOfChangesInNetAssetsAvailableForBenefits"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Gain (Loss) on Investment",
        "totalLabel": "EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Gain (Loss) on Investment, Total",
        "terseLabel": "Net appreciation in fair value of investments",
        "documentation": "Amount of increase (decrease) in net asset available for benefit from realized and unrealized gain (loss) on investment held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r12",
      "r49",
      "r97",
      "r126"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForIncomeLossOnInvestment": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForIncomeLossOnInvestment",
     "crdr": "debit",
     "calculation": {
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementOfChangesInNetAssetsAvailableForBenefits": {
       "parentTag": "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncrease",
       "weight": 1.0,
       "order": 1.0
      }
     },
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementOfChangesInNetAssetsAvailableForBenefits"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment",
        "terseLabel": "Plan interest in BNSF 401(k) Plans Master Trust investment income (Note 4)",
        "totalLabel": "Total investment income",
        "documentation": "Amount of increase (decrease) in net asset available for benefit from income (loss) on investment held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Includes, but is not limited to, realized and unrealized gain (loss) on investment."
       }
      }
     },
     "auth_ref": [
      "r126"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForIncomeLossOnInvestmentAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForIncomeLossOnInvestmentAbstract",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementOfChangesInNetAssetsAvailableForBenefits"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "INVESTMENT INCOME:",
        "label": "EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForContribution": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForContribution",
     "crdr": "debit",
     "calculation": {
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementOfChangesInNetAssetsAvailableForBenefits": {
       "parentTag": "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncrease",
       "weight": 1.0,
       "order": 0.0
      }
     },
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementOfChangesInNetAssetsAvailableForBenefits"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Change in Net Asset Available for Benefit, Increase from Contribution",
        "totalLabel": "Total contributions",
        "documentation": "Amount of increase in net asset available for benefit from contribution to employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r126",
      "r135"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForContributionAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForContributionAbstract",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementOfChangesInNetAssetsAvailableForBenefits"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Change in Net Asset Available for Benefit, Increase from Contribution [Abstract]",
        "terseLabel": "CONTRIBUTIONS:"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForEmployerContribution": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForEmployerContribution",
     "crdr": "debit",
     "calculation": {
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementOfChangesInNetAssetsAvailableForBenefits": {
       "parentTag": "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForContribution",
       "weight": 1.0,
       "order": 0.0
      }
     },
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementOfChangesInNetAssetsAvailableForBenefits"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Change in Net Asset Available for Benefit, Increase from Employer Contribution, Cash and Noncash",
        "totalLabel": "EBP, Change in Net Asset Available for Benefit, Increase from Employer Contribution, Cash and Noncash, Total",
        "terseLabel": "Employer contributions",
        "documentation": "Amount of increase in net asset available for benefit from cash and noncash contributions from employer of participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r77",
      "r78",
      "r85",
      "r167",
      "r183"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForInterestAndDividendIncomeOnInvestment": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForInterestAndDividendIncomeOnInvestment",
     "crdr": "debit",
     "calculation": {
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementOfChangesInNetAssetsAvailableForBenefits": {
       "parentTag": "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForIncomeLossOnInvestment",
       "weight": 1.0,
       "order": 0.0
      }
     },
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementOfChangesInNetAssetsAvailableForBenefits"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Change in Net Asset Available for Benefit, Increase from Interest and Dividend Income on Investment",
        "terseLabel": "Interest and dividend income",
        "totalLabel": "EBP, Change in Net Asset Available for Benefit, Increase from Interest and Dividend Income on Investment, Total",
        "verboseLabel": "Dividends and interest",
        "documentation": "Amount of increase in net asset available for benefit from interest and dividend income on investment held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r98"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForInterestIncomeOnNoteReceivableFromParticipant": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForInterestIncomeOnNoteReceivableFromParticipant",
     "crdr": "debit",
     "calculation": {
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementOfChangesInNetAssetsAvailableForBenefits": {
       "parentTag": "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncrease",
       "weight": 1.0,
       "order": 2.0
      }
     },
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementOfChangesInNetAssetsAvailableForBenefits"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Change in Net Asset Available for Benefit, Increase from Interest Income on Note Receivable from Participant",
        "terseLabel": "INTEREST INCOME ON NOTES RECEIVABLE FROM PARTICIPANTS",
        "documentation": "Amount of increase in net asset available for benefit from interest income on note receivable from participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r126",
      "r135"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForParticipantContributionExcludingRollover": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForParticipantContributionExcludingRollover",
     "crdr": "debit",
     "calculation": {
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementOfChangesInNetAssetsAvailableForBenefits": {
       "parentTag": "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForContribution",
       "weight": 1.0,
       "order": 2.0
      }
     },
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementOfChangesInNetAssetsAvailableForBenefits"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution, Excluding Rollover",
        "terseLabel": "Participant contributions",
        "documentation": "Amount, excluding rollover, of increase in net asset available for benefit from contribution by participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r126",
      "r130",
      "r131",
      "r132",
      "r175",
      "r176"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForParticipantContributionRollover": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForParticipantContributionRollover",
     "crdr": "debit",
     "calculation": {
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementOfChangesInNetAssetsAvailableForBenefits": {
       "parentTag": "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForContribution",
       "weight": 1.0,
       "order": 1.0
      }
     },
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementOfChangesInNetAssetsAvailableForBenefits"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Rollover contributions",
        "label": "EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution, Rollover",
        "documentation": "Amount of increase in net asset available for benefit from contribution transferred from another qualified plan or from individual retirement account of participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Excludes contribution for participant transmitted by employer of participant in EBP."
       }
      }
     },
     "auth_ref": [
      "r126",
      "r130",
      "r131",
      "r132",
      "r175",
      "r176"
     ]
    },
    "brka_EmployeeBenefitPlanContributionLimitationsPercentage": {
     "xbrltype": "percentItemType",
     "nsuri": "http://www.berkshirehathaway.com/20251231",
     "localname": "EmployeeBenefitPlanContributionLimitationsPercentage",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlanAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Employee Benefit Plan, Contribution Limitations Percentage",
        "documentation": "Employee benefit plan, contribution limitations percentage.",
        "terseLabel": "Employee benefit plan contribution limitations percentage"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap-ebp_EmployeeBenefitPlanContributionParticipatingEmployerAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanContributionParticipatingEmployerAxis",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlanAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Contribution, Participating Employer [Axis]",
        "documentation": "Information by participating employer contributing to employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r78"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanContributionParticipatingEmployerDomain": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanContributionParticipatingEmployerDomain",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlanAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Contribution, Participating Employer [Domain]",
        "documentation": "Participating employer contributing to employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r78"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanContributionPolicyTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanContributionPolicyTextBlock",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureSignificantAccountingPoliciesPolicies"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Contributions",
        "label": "EBP, Contribution [Policy Text Block]",
        "documentation": "Disclosure of accounting policy for determining contribution to employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Includes, but is not limited to, basis for determining employer contribution and method of determining participant contribution."
       }
      }
     },
     "auth_ref": [
      "r53"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanDescriptionOfPlanAbstract",
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Description of Plan and Accounting Change [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanDescriptionOfPlanLineItems",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlan",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlanAdditionalInformationDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosurePlanTermination"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Description of Plan [Line Items]",
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table."
       }
      }
     },
     "auth_ref": [
      "r133"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanTable": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanDescriptionOfPlanTable",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlan",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlanAdditionalInformationDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosurePlanTermination"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Description of Plan [Table]",
        "documentation": "Disclosure of information about description of employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r133"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanDescriptionOfPlanTextBlock",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlan"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Description of Plan [Text Block]",
        "terseLabel": "Description of Plan",
        "documentation": "The entire disclosure for description of employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Includes, but is not limited to, vesting and allocation provisions and disposition of forfeiture."
       }
      }
     },
     "auth_ref": [
      "r2",
      "r3",
      "r4",
      "r52",
      "r126"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanEmployerCommonStockClassBMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanEmployerCommonStockClassBMember",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureRelatedpartyTransactionsAndExemptPartyininterestTransactionsAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Employer, Common Stock, Class B [Member]",
        "terseLabel": "Class B Common Stock",
        "documentation": "Class B common stock issued by employer of participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r165",
      "r171",
      "r172",
      "r173",
      "r182",
      "r187",
      "r188"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanEmployerCommonStockFundMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanEmployerCommonStockFundMember",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfPlansInvestmentsMeasuredAtFairValueOnRecurringBasisDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Employer, Common Stock Fund [Member]",
        "terseLabel": "Common Stock",
        "documentation": "Fund with common stock issued by employer of participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r110",
      "r165",
      "r171",
      "r173",
      "r182",
      "r187",
      "r188"
     ]
    },
    "brka_EmployeeBenefitPlanEmployerContributionAdditionalVariableMatchingPercentage": {
     "xbrltype": "percentItemType",
     "nsuri": "http://www.berkshirehathaway.com/20251231",
     "localname": "EmployeeBenefitPlanEmployerContributionAdditionalVariableMatchingPercentage",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlanAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Employee Benefit Plan, Employer Contribution, Additional Variable Matching Percentage",
        "documentation": "Employee benefit plan, employer contribution, additional variable matching percentage.",
        "terseLabel": "Additional variable matching contribution percentage"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap-ebp_EmployeeBenefitPlanEmployerContributionMatchingPercentage": {
     "xbrltype": "percentItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanEmployerContributionMatchingPercentage",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlanAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Employer Contribution, Matching Percentage",
        "terseLabel": "Fixed matching contribution percentage",
        "documentation": "Percentage of employer matching contribution on eligible participant contribution to employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r126"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanEmployerContributionParticipantCompensationMatchedPercentage": {
     "xbrltype": "percentItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanEmployerContributionParticipantCompensationMatchedPercentage",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlanAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Employer Contribution, Participant Compensation Matched, Percentage",
        "terseLabel": "Percentage on employee eligible compensation",
        "documentation": "Percentage of participant compensation eligible for employer matching contribution for participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r126"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanEmployerContributionReceivable": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanEmployerContributionReceivable",
     "crdr": "debit",
     "calculation": {
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementsOfNetAssetsAvailableForBenefits": {
       "parentTag": "us-gaap-ebp_EmployeeBenefitPlanReceivable",
       "weight": 1.0,
       "order": 1.0
      }
     },
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementsOfNetAssetsAvailableForBenefits"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Employer Contribution, Receivable",
        "terseLabel": "Employer contributions",
        "documentation": "Amount of contribution receivable from employer of participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r84",
      "r86",
      "r126"
     ]
    },
    "brka_EmployeeBenefitPlanEmployerContributionVariableMatchingAmount": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.berkshirehathaway.com/20251231",
     "localname": "EmployeeBenefitPlanEmployerContributionVariableMatchingAmount",
     "crdr": "debit",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlanAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Employee Benefit Plan Employer Contribution Variable Matching, Amount",
        "documentation": "Employee benefit plan employer contribution variable matching, amount.",
        "terseLabel": "Employee benefit plan employer contribution variable matching amount"
       }
      }
     },
     "auth_ref": []
    },
    "brka_EmployeeBenefitPlanEmployerContributionVariableMatchingPercentage": {
     "xbrltype": "percentItemType",
     "nsuri": "http://www.berkshirehathaway.com/20251231",
     "localname": "EmployeeBenefitPlanEmployerContributionVariableMatchingPercentage",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlanAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Employee Benefit Plan, Employer Contribution, Variable Matching Percentage",
        "documentation": "Employee benefit plan, employer contribution, variable matching percentage.",
        "terseLabel": "Variable matching contribution percentage"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap-ebp_EmployeeBenefitPlanExpensePolicyTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanExpensePolicyTextBlock",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureSignificantAccountingPoliciesPolicies"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Expense [Policy Text Block]",
        "terseLabel": "Administrative Expenses",
        "documentation": "Disclosure of accounting policy for expense incurred by employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r126"
     ]
    },
    "brka_EmployeeBenefitPlanFairValueInvestmentNetAssetValueRedemptionFrequency": {
     "xbrltype": "stringItemType",
     "nsuri": "http://www.berkshirehathaway.com/20251231",
     "localname": "EmployeeBenefitPlanFairValueInvestmentNetAssetValueRedemptionFrequency",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfPlanInvestmentsWithReportedNavDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Employee Benefit Plan Fair Value Investment Net Asset Value Redemption Frequency",
        "documentation": "Employee benefit plan fair value investment net asset value redemption frequency.",
        "terseLabel": "Redemption Frequency"
       }
      }
     },
     "auth_ref": []
    },
    "brka_EmployeeBenefitPlanFairValueInvestmentNetAssetValueRedemptionNoticePeriod": {
     "xbrltype": "stringItemType",
     "nsuri": "http://www.berkshirehathaway.com/20251231",
     "localname": "EmployeeBenefitPlanFairValueInvestmentNetAssetValueRedemptionNoticePeriod",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfPlanInvestmentsWithReportedNavDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Redemption Notice Period",
        "label": "Employee Benefit Plan Fair Value Investment Net Asset Value Redemption Notice Period",
        "documentation": "Employee benefit plan fair value investment net asset value redemption notice period."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap-ebp_EmployeeBenefitPlanForfeitedNonvestedAccount": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanForfeitedNonvestedAccount",
     "crdr": "debit",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlanAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Forfeited Nonvested Account",
        "terseLabel": "Employee benefit plan, forfeitures account balances",
        "documentation": "Amount of plan asset, in forfeited nonvested account, no longer allocated to participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r55",
      "r126"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanForfeitedNonvestedAccountDecreaseForEmployerContribution": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanForfeitedNonvestedAccountDecreaseForEmployerContribution",
     "crdr": "credit",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlanAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Forfeited Nonvested Account, Decrease from Employer Contribution",
        "terseLabel": "Employee benefit plan, forfeited account, decrease from employer contribution",
        "documentation": "Amount of decrease in forfeited nonvested account of employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) from employer contribution."
       }
      }
     },
     "auth_ref": [
      "r55",
      "r80",
      "r126"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanInvestmentAcquiredExcludingPlanInterestInMasterTrustCost": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanInvestmentAcquiredExcludingPlanInterestInMasterTrustCost",
     "crdr": "debit",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureRelatedpartyTransactionsAndExemptPartyininterestTransactionsAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Investment Acquired, Excluding Plan Interest in Master Trust, Cost",
        "terseLabel": "Master trust recorded purchases amount",
        "verboseLabel": "Purchases amount",
        "documentation": "Cost of investment, excluding plan interest in master trust, acquired by employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r149",
      "r156",
      "r162"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustCost": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustCost",
     "crdr": "debit",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureRelatedpartyTransactionsAndExemptPartyininterestTransactionsAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Investment, Excluding Plan Interest in Master Trust, Cost",
        "terseLabel": "Amount of shares held",
        "documentation": "Cost of investment, excluding plan interest in master trust, held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Includes, but is not limited to, derivative, investment measured at net asset value per share as practical expedient, and insurance contract."
       }
      }
     },
     "auth_ref": [
      "r59",
      "r83",
      "r141",
      "r150"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustFairValue": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustFairValue",
     "crdr": "debit",
     "calculation": {
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementsOfNetAssetsAvailableForBenefits": {
       "parentTag": "us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefit",
       "weight": 1.0,
       "order": 0.0
      }
     },
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfPlanInvestmentsWithReportedNavDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfPlansInvestmentsMeasuredAtFairValueOnRecurringBasisDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementsOfNetAssetsAvailableForBenefits"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value",
        "periodEndLabel": "EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value, Ending Balance",
        "periodStartLabel": "EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value, Beginning Balance",
        "totalLabel": "EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value, Total",
        "terseLabel": "Total investments at fair value",
        "verboseLabel": "Investments",
        "documentation": "Fair value of investment, excluding plan interest in master trust, held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Includes, but is not limited to, derivative, investment measured at net asset value per share as practical expedient, and insurance contract not meeting fully-benefit responsive investment criteria."
       }
      }
     },
     "auth_ref": [
      "r11",
      "r13",
      "r14",
      "r21",
      "r22",
      "r24",
      "r25",
      "r31",
      "r32",
      "r34",
      "r89",
      "r104",
      "r105",
      "r106",
      "r107",
      "r108",
      "r109",
      "r110",
      "r111",
      "r112",
      "r113",
      "r126"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanInvestmentFairValueAndNavAbstract",
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Investment, Fair Value and NAV [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavLineItems": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanInvestmentFairValueAndNavLineItems",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfPlanInvestmentsWithReportedNavDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfPlansInvestmentsMeasuredAtFairValueOnRecurringBasisDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueOfMeasurements",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueOfMeasurementsTables"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Investment, Fair Value and NAV [Line Items]",
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table."
       }
      }
     },
     "auth_ref": [
      "r26",
      "r27",
      "r28",
      "r31",
      "r32",
      "r34",
      "r35",
      "r36",
      "r37",
      "r38",
      "r39",
      "r40",
      "r56",
      "r75",
      "r104",
      "r105",
      "r106",
      "r107",
      "r108",
      "r109",
      "r110",
      "r111",
      "r112",
      "r113"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTable": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanInvestmentFairValueAndNavTable",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfPlanInvestmentsWithReportedNavDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfPlansInvestmentsMeasuredAtFairValueOnRecurringBasisDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueOfMeasurements",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueOfMeasurementsTables"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Investment, Fair Value and NAV [Table]",
        "documentation": "Disclosure of information about fair value of investment held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)), including, but not limited to, fair value measured at net asset value per share as practical expedient (NAV)."
       }
      }
     },
     "auth_ref": [
      "r25",
      "r26",
      "r27",
      "r28",
      "r31",
      "r32",
      "r34",
      "r35",
      "r36",
      "r37",
      "r38",
      "r39",
      "r40",
      "r56",
      "r75",
      "r92",
      "r104",
      "r105",
      "r106",
      "r107",
      "r108",
      "r109",
      "r110",
      "r111",
      "r112",
      "r113"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTableTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanInvestmentFairValueAndNavTableTextBlock",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueOfMeasurementsTables"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Investment, Fair Value and NAV [Table Text Block]",
        "terseLabel": "Summary of Plan\"s Investments measured at Fair Value on Recurring Basis",
        "documentation": "Tabular disclosure of fair value of investment held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)), including, but not limited to, fair value measured at net asset value per share as practical expedient (NAV)."
       }
      }
     },
     "auth_ref": [
      "r23",
      "r30",
      "r32",
      "r33",
      "r41",
      "r126",
      "r179",
      "r180",
      "r184"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanInvestmentFairValueAndNavTextBlock",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueOfMeasurements"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Investment, Fair Value and NAV [Text Block]",
        "terseLabel": "Fair Value Measurements",
        "documentation": "The entire disclosure for fair value of investment held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)), including, but not limited to, fair value measured at net asset value per share as practical expedient (NAV)."
       }
      }
     },
     "auth_ref": [
      "r26",
      "r28",
      "r29",
      "r31",
      "r32",
      "r34",
      "r37",
      "r38",
      "r39",
      "r40",
      "r56",
      "r75",
      "r76",
      "r89",
      "r90",
      "r126",
      "r129"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanInvestmentIssuerNameExtensibleEnumeration": {
     "xbrltype": "enumerationSetItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanInvestmentIssuerNameExtensibleEnumeration",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfAssetsHeldAtEndOfYearScheduleOfAssetsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Investment, Issuer Name [Extensible Enumeration]",
        "documentation": "Indicates name of issuer of investment held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r83",
      "r139",
      "r145",
      "r152"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanInvestmentNumberOfShares": {
     "xbrltype": "sharesItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanInvestmentNumberOfShares",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureRelatedpartyTransactionsAndExemptPartyininterestTransactionsAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Investment, Number of Shares",
        "terseLabel": "Number of shares held",
        "documentation": "Number of shares or units of investment held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r57",
      "r83",
      "r140",
      "r146",
      "r149",
      "r150",
      "r153"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanInvestmentNumberOfSharesPurchased": {
     "xbrltype": "sharesItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanInvestmentNumberOfSharesPurchased",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureRelatedpartyTransactionsAndExemptPartyininterestTransactionsAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Investment, Purchased, Number of Shares",
        "terseLabel": "Purchases of shares",
        "documentation": "Number of shares or units of investment purchased by employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r174"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanInvestmentNumberOfSharesSold": {
     "xbrltype": "sharesItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanInvestmentNumberOfSharesSold",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureRelatedpartyTransactionsAndExemptPartyininterestTransactionsAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Investment, Sold, Number of Shares",
        "terseLabel": "Sales of shares",
        "documentation": "Number of shares or units of investment sold by employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r174"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanInvestmentPolicyTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanInvestmentPolicyTextBlock",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureSignificantAccountingPoliciesPolicies"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Investment [Policy Text Block]",
        "terseLabel": "Investment Valuation and Income Recognition",
        "documentation": "Disclosure of accounting policy for investment held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r88",
      "r92",
      "r93",
      "r126"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanInvestmentSoldExcludingPlanInterestInMasterTrustSellingPrice": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanInvestmentSoldExcludingPlanInterestInMasterTrustSellingPrice",
     "crdr": "credit",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureRelatedpartyTransactionsAndExemptPartyininterestTransactionsAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Investment Sold, Excluding Plan Interest in Master Trust, Selling Price",
        "terseLabel": "Master trust recorded sales amount",
        "verboseLabel": "Sales amount",
        "documentation": "Amount of selling price for investment, excluding plan interest in master trust, sold by employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r75",
      "r148",
      "r149",
      "r154",
      "r163"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanInvestmentTypeExtensibleEnumeration": {
     "xbrltype": "enumerationSetItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanInvestmentTypeExtensibleEnumeration",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfAssetsHeldAtEndOfYearScheduleOfAssetsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Investment, Current Value, Type [Extensible Enumeration]",
        "documentation": "Indicates type of investment at current value held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r83",
      "r139",
      "r145"
     ]
    },
    "brka_EmployeeBenefitPlanMinimumAmountPerNonHardshipInServiceWithdrawal": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.berkshirehathaway.com/20251231",
     "localname": "EmployeeBenefitPlanMinimumAmountPerNonHardshipInServiceWithdrawal",
     "crdr": "debit",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlanAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Employee Benefit Plan, Minimum Amount Per Non Hardship in Service Withdrawal",
        "documentation": "Employee benefit plan, minimum amount per non-hardship in-service withdrawal.",
        "terseLabel": "Employee benefit plan, minimum amount per non-hardship in-service withdrawal"
       }
      }
     },
     "auth_ref": []
    },
    "brka_EmployeeBenefitPlanMinimumParticipantsWithVestedBalances": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.berkshirehathaway.com/20251231",
     "localname": "EmployeeBenefitPlanMinimumParticipantsWithVestedBalances",
     "crdr": "debit",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlanAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Employee Benefit Plan, Minimum Participants With Vested Balances",
        "documentation": "Employee benefit plan, minimum participants with vested balances.",
        "terseLabel": "Employee benefit plan, minimum participants with vested balances"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefit": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanNetAssetAvailableForBenefit",
     "crdr": "debit",
     "calculation": {
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementsOfNetAssetsAvailableForBenefits": {
       "parentTag": null,
       "weight": null,
       "order": null,
       "root": true
      }
     },
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementOfChangesInNetAssetsAvailableForBenefits",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementsOfNetAssetsAvailableForBenefits"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Net Asset Available for Benefit",
        "periodEndLabel": "End of year",
        "periodStartLabel": "Beginning of year",
        "terseLabel": "Net assets available for benefits from the financial statements",
        "totalLabel": "NET ASSETS AVAILABLE FOR BENEFITS",
        "documentation": "Amount of asset less liability available to pay benefit of participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)), including, but not limited to, aggregation of participants' individual account balances."
       }
      }
     },
     "auth_ref": [
      "r1",
      "r48",
      "r70",
      "r81",
      "r82",
      "r91",
      "r101",
      "r126",
      "r127",
      "r177"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefitAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanNetAssetAvailableForBenefitAbstract",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementOfChangesInNetAssetsAvailableForBenefits"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Net Asset Available for Benefit [Abstract]",
        "terseLabel": "NET ASSETS AVAILABLE FOR BENEFITS:"
       }
      }
     },
     "auth_ref": []
    },
    "brka_EmployeeBenefitPlanNonexemptParty-In-InterestTransactionsTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://www.berkshirehathaway.com/20251231",
     "localname": "EmployeeBenefitPlanNonexemptParty-In-InterestTransactionsTextBlock",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureNonexemptPartyininterestTransactions"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Employee Benefit Plan Nonexempt Party-In-Interest Transactions [Text Block]",
        "documentation": "Employee Benefit Plan Nonexempt Party-In-Interest Transactions.",
        "terseLabel": "Nonexempt Party-In-Interest Transactions"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipant": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanNoteReceivableFromParticipant",
     "crdr": "debit",
     "calculation": {
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementsOfNetAssetsAvailableForBenefits": {
       "parentTag": "us-gaap-ebp_EmployeeBenefitPlanReceivable",
       "weight": 1.0,
       "order": 0.0
      }
     },
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementsOfNetAssetsAvailableForBenefits"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Note Receivable from Participant",
        "terseLabel": "Notes receivable from participants",
        "documentation": "Amount of unpaid principal plus accrued but unpaid interest for loan from participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r87",
      "r126",
      "r177"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantAccountMaximumBorrowingAmount": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanNoteReceivableFromParticipantAccountMaximumBorrowingAmount",
     "crdr": "debit",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlanAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Note Receivable from Participant, Account, Maximum Borrowing, Amount",
        "terseLabel": "Employee benefit plan, notes receivable from participant, account, maximum borrowing, amount",
        "documentation": "Amount of maximum account balance that participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) can borrow."
       }
      }
     },
     "auth_ref": [
      "r126"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantAccountMinimumBorrowingAmount": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanNoteReceivableFromParticipantAccountMinimumBorrowingAmount",
     "crdr": "debit",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlanAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Note Receivable from Participant, Account, Minimum Borrowing, Amount",
        "terseLabel": "Employee benefit plan, notes receivable from participant, account, minimum borrowing, amount",
        "documentation": "Amount of minimum account balance that participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) can borrow."
       }
      }
     },
     "auth_ref": [
      "r126"
     ]
    },
    "brka_EmployeeBenefitPlanNoteReceivableFromParticipantInterestRate": {
     "xbrltype": "percentItemType",
     "nsuri": "http://www.berkshirehathaway.com/20251231",
     "localname": "EmployeeBenefitPlanNoteReceivableFromParticipantInterestRate",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlanAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Employee benefit plan note receivable from participant interest rate.",
        "label": "Employee Benefit Plan Note Receivable From Participant Interest Rate",
        "terseLabel": "Employee benefit plan note receivable from participant interest rate"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantPolicyTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanNoteReceivableFromParticipantPolicyTextBlock",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureSignificantAccountingPoliciesPolicies"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Note Receivable from Participant [Policy Text Block]",
        "terseLabel": "Notes Receivable from Participants",
        "documentation": "Disclosure of accounting policy for note receivable from participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r126"
     ]
    },
    "brka_EmployeeBenefitPlanNoteReceivableFromParticipantPrimeRate": {
     "xbrltype": "percentItemType",
     "nsuri": "http://www.berkshirehathaway.com/20251231",
     "localname": "EmployeeBenefitPlanNoteReceivableFromParticipantPrimeRate",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlanAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Employee Benefit Plan Note Receivable From Participant Prime Rate",
        "documentation": "Employee benefit plan note receivable from participant prime rate.",
        "terseLabel": "Employee benefit plan, note receivable from participant prime rate"
       }
      }
     },
     "auth_ref": []
    },
    "brka_EmployeeBenefitPlanNotesReceivableFromParticipantsLoanTerm": {
     "xbrltype": "durationItemType",
     "nsuri": "http://www.berkshirehathaway.com/20251231",
     "localname": "EmployeeBenefitPlanNotesReceivableFromParticipantsLoanTerm",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlanAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Employee benefit plan, notes receivable from participants loan term",
        "label": "Employee Benefit Plan, Notes Receivable from Participants Loan Term",
        "documentation": "Employee benefit plan, notes receivable from participants loan term."
       }
      }
     },
     "auth_ref": []
    },
    "brka_EmployeeBenefitPlanNotesReceivableFromParticipantsLoanToPurchasePrimaryResidenceTerm": {
     "xbrltype": "durationItemType",
     "nsuri": "http://www.berkshirehathaway.com/20251231",
     "localname": "EmployeeBenefitPlanNotesReceivableFromParticipantsLoanToPurchasePrimaryResidenceTerm",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlanAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Employee Benefit Plan, Notes Receivable from Participants Loan to Purchase Primary Residence Term",
        "documentation": "Employee benefit plan, notes receivable from participants loan to purchase primary residence term.",
        "terseLabel": "Employee benefit plan, notes receivable from participants loan to purchase primary residence term"
       }
      }
     },
     "auth_ref": []
    },
    "brka_EmployeeBenefitPlanNumberOfServiceInVestingOfEmployerContributionPeriod": {
     "xbrltype": "durationItemType",
     "nsuri": "http://www.berkshirehathaway.com/20251231",
     "localname": "EmployeeBenefitPlanNumberOfServiceInVestingOfEmployerContributionPeriod",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlanAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Employee Benefit Plan Number of Service in Vesting of Employer Contribution Period",
        "documentation": "Employee benefit plan number of service in vesting of employer contribution period.",
        "terseLabel": "Years of vesting service"
       }
      }
     },
     "auth_ref": []
    },
    "brka_EmployeeBenefitPlanParticipantContributionAftertaxMaximumAnnualCompensationToCompensationPercentage": {
     "xbrltype": "percentItemType",
     "nsuri": "http://www.berkshirehathaway.com/20251231",
     "localname": "EmployeeBenefitPlanParticipantContributionAftertaxMaximumAnnualCompensationToCompensationPercentage",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlanAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Employee Benefit Plan, Participant Contribution, Aftertax, Maximum Annual Compensation to Compensation, Percentage",
        "documentation": "Employee benefit plan, participant contribution, aftertax, maximum annual compensation to compensation, percentage.",
        "terseLabel": "Employee benefit plan, participant contribution, after tax, maximum annual compensation to total compensation, percentage"
       }
      }
     },
     "auth_ref": []
    },
    "brka_EmployeeBenefitPlanParticipantContributionAftertaxMinimumAnnualCompensationToCompensationPercentage": {
     "xbrltype": "percentItemType",
     "nsuri": "http://www.berkshirehathaway.com/20251231",
     "localname": "EmployeeBenefitPlanParticipantContributionAftertaxMinimumAnnualCompensationToCompensationPercentage",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlanAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Employee Benefit Plan, Participant Contribution, Aftertax, Minimum Annual Compensation to Compensation, Percentage",
        "documentation": "Employee benefit plan, participant contribution, aftertax, minimum annual compensation to compensation, percentage.",
        "terseLabel": "Employee benefit plan, participant contribution, after tax, minimum annual compensation to total compensation, percentage"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap-ebp_EmployeeBenefitPlanParticipantContributionAutomaticDeferralRate": {
     "xbrltype": "percentItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanParticipantContributionAutomaticDeferralRate",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlanAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Participant Contribution, Automatic, Deferral Rate",
        "terseLabel": "Employee benefit plan participant contribution, automatic, deferral rate",
        "documentation": "Percentage of eligible compensation contributed for participant automatically enrolled in employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r126"
     ]
    },
    "brka_EmployeeBenefitPlanParticipantContributionInPretaxAndRothContributionsPercentage": {
     "xbrltype": "percentItemType",
     "nsuri": "http://www.berkshirehathaway.com/20251231",
     "localname": "EmployeeBenefitPlanParticipantContributionInPretaxAndRothContributionsPercentage",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlanAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Employee Benefit Plan, Participant Contribution in Pretax and Roth Contributions Percentage",
        "documentation": "Employee benefit plan, participant contribution in pre-tax and roth contributions percentage.",
        "terseLabel": "Employee benefit plan, participant contribution in pre-tax and roth contributions percentage"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap-ebp_EmployeeBenefitPlanParticipantContributionPretaxMaximumAnnualCompensationToTotalCompensationPercentage": {
     "xbrltype": "percentItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanParticipantContributionPretaxMaximumAnnualCompensationToTotalCompensationPercentage",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlanAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Participant Contribution, Pretax, Maximum Annual Compensation to Total Compensation, Percentage",
        "terseLabel": "Employee benefit plan, participant contribution, pre-tax, maximum annual compensation to total compensation, percentage",
        "documentation": "Percentage of maximum pretax annual compensation that participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)), is permitted to contribute to total pretax annual compensation."
       }
      }
     },
     "auth_ref": [
      "r126"
     ]
    },
    "brka_EmployeeBenefitPlanParticipantContributionPretaxMaximumOfEligibleCompensationPercentage": {
     "xbrltype": "percentItemType",
     "nsuri": "http://www.berkshirehathaway.com/20251231",
     "localname": "EmployeeBenefitPlanParticipantContributionPretaxMaximumOfEligibleCompensationPercentage",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlanAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Employee Benefit Plan, Participant Contribution, Pretax, Maximum of Eligible Compensation, Percentage",
        "documentation": "Employee benefit plan, participant contribution, pretax, maximum of eligible compensation percentage.",
        "terseLabel": "Employee benefit plan, participant contribution, pretax, maximum of eligible compensation percentage"
       }
      }
     },
     "auth_ref": []
    },
    "brka_EmployeeBenefitPlanParticipantContributionPretaxMinimumAnnualCompensationToCompensationPercentage": {
     "xbrltype": "percentItemType",
     "nsuri": "http://www.berkshirehathaway.com/20251231",
     "localname": "EmployeeBenefitPlanParticipantContributionPretaxMinimumAnnualCompensationToCompensationPercentage",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlanAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Employee Benefit Plan, Participant Contribution, Pretax, Minimum Annual Compensation to Compensation, Percentage",
        "documentation": "Employee benefit plan, participant contribution, pretax, minimum annual compensation to compensation, percentage.",
        "terseLabel": "Employee Benefit Plan Participant Contribution Pre taxMinimumAnnualCompensationToTotalCompensationPercentage",
        "verboseLabel": "Employee benefit plan, participant contribution, pre tax, minimum annual compensation to total compensation, percentage"
       }
      }
     },
     "auth_ref": []
    },
    "brka_EmployeeBenefitPlanParticipantContributionVestingDescription": {
     "xbrltype": "stringItemType",
     "nsuri": "http://www.berkshirehathaway.com/20251231",
     "localname": "EmployeeBenefitPlanParticipantContributionVestingDescription",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlanAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Employee benefit plan participant contribution vesting description.",
        "label": "Employee Benefit Plan Participant Contribution Vesting Description",
        "terseLabel": "Employee benefit plan contribution vesting description"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap-ebp_EmployeeBenefitPlanParticipantDirectedMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanParticipantDirectedMember",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementsOfNetAssetsAvailableForBenefits"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Participant-Directed [Member]",
        "terseLabel": "Participant-directed investments",
        "documentation": "Participant-directed investment held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r181",
      "r185"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanParticipantDirectedStatusAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanParticipantDirectedStatusAxis",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementsOfNetAssetsAvailableForBenefits"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Participant-Directed and Nonparticipant-Directed Status [Axis]",
        "documentation": "Information by participant-directed and nonparticipant-directed status of investment held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r91",
      "r96"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanParticipantDirectedStatusDomain": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanParticipantDirectedStatusDomain",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementsOfNetAssetsAvailableForBenefits"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Participant-Directed and Nonparticipant-Directed Status [Domain]",
        "documentation": "Participant-directed and nonparticipant-directed status of investment held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r91",
      "r96"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanParticipantLoanInterestRate": {
     "xbrltype": "percentItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanParticipantLoanInterestRate",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfAssetsHeldAtEndOfYearScheduleOfAssetsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Asset Held for Investment, Participant Loan, Interest Rate",
        "terseLabel": "Employee benefit plan, asset held for investment, participant loan, interest rate",
        "documentation": "Interest rate on participant loan in schedule of asset held for investment of employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r83",
      "r142"
     ]
    },
    "brka_EmployeeBenefitPlanParticipantLoanMaturityYear": {
     "xbrltype": "gYearItemType",
     "nsuri": "http://www.berkshirehathaway.com/20251231",
     "localname": "EmployeeBenefitPlanParticipantLoanMaturityYear",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfAssetsHeldAtEndOfYearScheduleOfAssetsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Employee Benefit Plan Participant Loan Maturity Year",
        "documentation": "Employee benefit plan participant loan maturity year.",
        "terseLabel": "Employee benefit plan, asset held for investment, participant loan, maturity year"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap-ebp_EmployeeBenefitPlanPaymentToParticipantPolicyTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanPaymentToParticipantPolicyTextBlock",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureSignificantAccountingPoliciesPolicies"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Payment to Participant [Policy Text Block]",
        "terseLabel": "Payments of Benefits",
        "documentation": "Disclosure of accounting policy for payment of benefit to participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r126"
     ]
    },
    "brka_EmployeeBenefitPlanPlanHeldFloatIncomeAmount": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.berkshirehathaway.com/20251231",
     "localname": "EmployeeBenefitPlanPlanHeldFloatIncomeAmount",
     "crdr": "credit",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Employee Benefit Plan, Plan Held Float Income Amount",
        "documentation": "Employee benefit plan, plan held float income amount.",
        "terseLabel": "Employee benefit plan, plan held float income amount"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap-ebp_EmployeeBenefitPlanPlanNumber": {
     "xbrltype": "threeDigitItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanPlanNumber",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfAssetsHeldAtEndOfYearScheduleOfAssetsDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfDelinquentParticipantContributionsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Plan Number",
        "documentation": "Plan number of employee stock purchase, saving, or similar plan (employee benefit plan (EBP)), in three-digit numeric format."
       }
      }
     },
     "auth_ref": [
      "r134",
      "r135",
      "r137",
      "r144",
      "r149",
      "r150",
      "r151",
      "r159",
      "r177"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanPlanTerminationTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanPlanTerminationTextBlock",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosurePlanTermination"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Plan Termination [Text Block]",
        "terseLabel": "Plan Termination",
        "documentation": "The entire disclosure for terminating employee stock purchase, saving, or similar plan (employee benefit plan (EBP)), including, but not limited to, plan under which participant no longer accrues benefit but remains in existence to pay already accrued benefit."
       }
      }
     },
     "auth_ref": [
      "r102",
      "r126"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanReceivable": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanReceivable",
     "crdr": "debit",
     "calculation": {
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementsOfNetAssetsAvailableForBenefits": {
       "parentTag": "us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefit",
       "weight": 1.0,
       "order": 2.0
      }
     },
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementsOfNetAssetsAvailableForBenefits"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Receivable",
        "totalLabel": "Total receivables",
        "documentation": "Amount of receivable of employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r126",
      "r177"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanReceivableAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanReceivableAbstract",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementsOfNetAssetsAvailableForBenefits"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Receivable [Abstract]",
        "terseLabel": "Receivables"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsAbstract",
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Related Party and Party-in-Interest Transactions [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsLineItems": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsLineItems",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureRelatedpartyTransactionsAndExemptPartyininterestTransactions",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureRelatedpartyTransactionsAndExemptPartyininterestTransactionsAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Related Party and Party-in-Interest Transactions [Line Items]",
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table."
       }
      }
     },
     "auth_ref": [
      "r47",
      "r170",
      "r178"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsTable": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsTable",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureRelatedpartyTransactionsAndExemptPartyininterestTransactions",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureRelatedpartyTransactionsAndExemptPartyininterestTransactionsAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Related Party and Party-in-Interest Transactions [Table]",
        "documentation": "Disclosure of information about related party and party-in-interest transactions with employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r47",
      "r170",
      "r178"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsTextBlock",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureRelatedpartyTransactionsAndExemptPartyininterestTransactions"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Related Party and Party-in-Interest Transactions [Text Block]",
        "terseLabel": "Related-Party Transactions and Exempt Party-In-Interest Transactions",
        "documentation": "The entire disclosure for related party and party-in-interest transactions with employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r44",
      "r45",
      "r46",
      "r47",
      "r126"
     ]
    },
    "brka_EmployeeBenefitPlanRevenueCredits": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.berkshirehathaway.com/20251231",
     "localname": "EmployeeBenefitPlanRevenueCredits",
     "crdr": "credit",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Employee Benefit Plan, Revenue Credits",
        "documentation": "Employee benefit plan, revenue credits.",
        "terseLabel": "Employee benefit plan, revenue credits"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentAbstract",
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Schedule of Asset Held for Investment [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfAssetsHeldAtEndOfYear",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfAssetsHeldAtEndOfYearScheduleOfAssetsDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfAssetsHeldAtEndOfYearTables"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Schedule of Asset Held for Investment [Line Items]",
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table."
       }
      }
     },
     "auth_ref": [
      "r83",
      "r139",
      "r140",
      "r141",
      "r142"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTable": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTable",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfAssetsHeldAtEndOfYear",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfAssetsHeldAtEndOfYearScheduleOfAssetsDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfAssetsHeldAtEndOfYearTables"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Schedule of Asset Held for Investment [Table]",
        "documentation": "Disclosure of information about schedule of asset held for investment of employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r83",
      "r139",
      "r140",
      "r141",
      "r142"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTableTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTableTextBlock",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfAssetsHeldAtEndOfYearTables"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Schedule of Asset Held for Investment [Table Text Block]",
        "terseLabel": "Schedule of Assets",
        "documentation": "Tabular disclosure of schedule of asset held for investment of employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r134",
      "r138"
     ]
    },
    "brka_EmployeeBenefitPlanScheduleOfAssetsTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://www.berkshirehathaway.com/20251231",
     "localname": "EmployeeBenefitPlanScheduleOfAssetsTextBlock",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfAssetsHeldAtEndOfYear"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Employee Benefit Plan Schedule of Assets [Text Block]",
        "documentation": "Employee benefit plan schedule of assets.",
        "terseLabel": "Schedule of Assets (Held at End of Year)"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionAbstract",
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Schedule of Delinquent Participant Contribution [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionCorrected": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionCorrected",
     "crdr": "debit",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfDelinquentParticipantContributionsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Schedule of Delinquent Participant Contribution, Corrected",
        "terseLabel": "Total Fully Corrected Under VFCP and PTE 2002-51",
        "documentation": "Amount of delinquent participant contribution corrected under Voluntary Fiduciary Correction Program (VFCP) and Prohibited Transaction Exemption (PTE) 2002-51 for employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r136"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionCorrectedOutsideVfcp": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionCorrectedOutsideVfcp",
     "crdr": "debit",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfDelinquentParticipantContributionsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Schedule of Delinquent Participant Contribution, Corrected Outside VFCP",
        "terseLabel": "Contributions Corrected Outside VFCP",
        "documentation": "Amount of delinquent participant contribution corrected outside Voluntary Fiduciary Correction Program (VFCP) for employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r136"
     ]
    },
    "brka_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionCorrectedThruVFCP": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.berkshirehathaway.com/20251231",
     "localname": "EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionCorrectedThruVFCP",
     "crdr": "debit",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfDelinquentParticipantContributionsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Employee Benefit Plan Schedule of Delinquent Participant Contribution Corrected Thru VFCP",
        "documentation": "Employee benefit plan schedule of delinquent participant contribution corrected Thru VFCP",
        "terseLabel": "Contributions Corrected thru VFCP"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionLineItems": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionLineItems",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfDelinquentParticipantContributions1",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfDelinquentParticipantContributionsDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfDelinquentParticipantContributionsTables"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Schedule of Delinquent Participant Contribution [Line Items]",
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table."
       }
      }
     },
     "auth_ref": [
      "r136"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionNotCorrected": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionNotCorrected",
     "crdr": "debit",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfDelinquentParticipantContributionsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Schedule of Delinquent Participant Contribution, Not Corrected",
        "terseLabel": "Contributions Not Corrected",
        "documentation": "Amount of delinquent participant contribution not corrected for employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r136"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionTable": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionTable",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfDelinquentParticipantContributions1",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfDelinquentParticipantContributionsDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfDelinquentParticipantContributionsTables"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Schedule of Delinquent Participant Contribution [Table]",
        "documentation": "Disclosure of information about delinquent participant contribution for employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r136"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionTableTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionTableTextBlock",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfDelinquentParticipantContributionsTables"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Schedule of Delinquent Participant Contribution [Table Text Block]",
        "terseLabel": "Schedule of Delinquent Participant Contributions",
        "documentation": "Tabular disclosure of delinquent participant contribution for employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r136"
     ]
    },
    "brka_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://www.berkshirehathaway.com/20251231",
     "localname": "EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionTextBlock",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfDelinquentParticipantContributions1"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Employee Benefit Plan, Schedule of Delinquent Participant Contribution [Text Block]",
        "documentation": "Employee benefit plan, schedule of delinquent participant contribution.",
        "terseLabel": "Schedule of Delinquent Participant Contributions"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap-ebp_EmployeeBenefitPlanStatementOfChangeInNetAssetAvailableForBenefitAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanStatementOfChangeInNetAssetAvailableForBenefitAbstract",
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Statement of Change in Net Asset Available for Benefit [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap-ebp_EmployeeBenefitPlanStatementOfChangeInNetAssetAvailableForBenefitLineItems": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanStatementOfChangeInNetAssetAvailableForBenefitLineItems",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementOfChangesInNetAssetsAvailableForBenefits"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Statement of Change in Net Asset Available for Benefit [Line Items]",
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table."
       }
      }
     },
     "auth_ref": [
      "r72",
      "r73",
      "r74",
      "r91"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanStatementOfChangeInNetAssetAvailableForBenefitTable": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanStatementOfChangeInNetAssetAvailableForBenefitTable",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementOfChangesInNetAssetsAvailableForBenefits"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Statement of Change in Net Asset Available for Benefit [Table]",
        "documentation": "Presentation of information about change in net asset available for benefit for employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r72",
      "r73",
      "r74",
      "r91"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanStatementOfNetAssetAvailableForBenefitAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanStatementOfNetAssetAvailableForBenefitAbstract",
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Statement of Net Asset Available for Benefit [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap-ebp_EmployeeBenefitPlanStatementOfNetAssetAvailableForBenefitLineItems": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanStatementOfNetAssetAvailableForBenefitLineItems",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementsOfNetAssetsAvailableForBenefits"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Statement of Net Asset Available for Benefit [Line Items]",
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table."
       }
      }
     },
     "auth_ref": [
      "r60",
      "r61",
      "r62",
      "r63",
      "r64",
      "r65",
      "r66",
      "r67",
      "r68",
      "r69",
      "r89",
      "r91",
      "r104",
      "r105",
      "r106",
      "r107",
      "r108",
      "r109",
      "r110",
      "r111",
      "r112",
      "r113"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanStatementOfNetAssetAvailableForBenefitTable": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanStatementOfNetAssetAvailableForBenefitTable",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementsOfNetAssetsAvailableForBenefits"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Statement of Net Asset Available for Benefit [Table]",
        "documentation": "Presentation of information about net asset available for benefit for employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r60",
      "r61",
      "r62",
      "r63",
      "r64",
      "r65",
      "r66",
      "r67",
      "r68",
      "r69",
      "r89",
      "r91",
      "r104",
      "r105",
      "r106",
      "r107",
      "r108",
      "r109",
      "r110",
      "r111",
      "r112"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanSummaryOfAccountingPolicyTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanSummaryOfAccountingPolicyTextBlock",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPolicies"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Summary of Accounting Policy [Text Block]",
        "terseLabel": "Summary of Significant Accounting Policies",
        "documentation": "The entire disclosure for summary of accounting policy used to prepare financial statement of employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r2",
      "r3",
      "r126"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanTaxDeterminationLetterDate": {
     "xbrltype": "dateItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanTaxDeterminationLetterDate",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFederalIncomeTaxStatusAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Tax Determination Letter, Date",
        "terseLabel": "Tax determination letter, date",
        "documentation": "Date of tax determination letter for employee stock purchase, saving, or similar plan (employee benefit plan (EBP)), in YYYY-MM-DD format."
       }
      }
     },
     "auth_ref": [
      "r126"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanTaxDeterminationLetterObtained": {
     "xbrltype": "booleanItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanTaxDeterminationLetterObtained",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFederalIncomeTaxStatusAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Tax Determination Letter, Obtained [true false]",
        "terseLabel": "Tax determination letter, obtained",
        "documentation": "Indicates (true false) whether tax determination letter was obtained by employer of participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r54",
      "r126"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanTaxStatusAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanTaxStatusAbstract",
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Tax Status [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap-ebp_EmployeeBenefitPlanTaxStatusLineItems": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanTaxStatusLineItems",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFederalIncomeTaxStatus",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFederalIncomeTaxStatusAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Tax Status [Line Items]",
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table."
       }
      }
     },
     "auth_ref": [
      "r168"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanTaxStatusTable": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanTaxStatusTable",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFederalIncomeTaxStatus",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFederalIncomeTaxStatusAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Tax Status [Table]",
        "documentation": "Disclosure of information about tax status of employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Includes, but is not limited to, information concerning whether tax ruling or determination letter was obtained and principal assumption on which plan relied in not making provision for federal income tax."
       }
      }
     },
     "auth_ref": [
      "r168"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanTaxStatusTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanTaxStatusTextBlock",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFederalIncomeTaxStatus"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Tax Status [Text Block]",
        "terseLabel": "Federal Income Tax Status",
        "documentation": "The entire disclosure for tax status of employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Includes, but is not limited to, information concerning whether tax ruling or determination letter was obtained and principal assumption on which plan relied in not making provision for federal income tax."
       }
      }
     },
     "auth_ref": [
      "r54",
      "r58",
      "r126"
     ]
    },
    "us-gaap-ebp_EmployeeBenefitPlanUseOfEstimatePolicyTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap-ebp/2025",
     "localname": "EmployeeBenefitPlanUseOfEstimatePolicyTextBlock",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureSignificantAccountingPoliciesPolicies"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "EBP, Use of Estimate [Policy Text Block]",
        "terseLabel": "Use of Estimates",
        "documentation": "Disclosure of accounting policy for use of estimate in preparation of financial statement of employee stock purchase, saving, or similar plan (employee benefit plan (EBP))."
       }
      }
     },
     "auth_ref": [
      "r5",
      "r6",
      "r7",
      "r8",
      "r9",
      "r10",
      "r126"
     ]
    },
    "brka_EmployeeBenefitPlanVestedPercentage": {
     "xbrltype": "percentItemType",
     "nsuri": "http://www.berkshirehathaway.com/20251231",
     "localname": "EmployeeBenefitPlanVestedPercentage",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlanAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Employee Benefit Plan Vested Percentage",
        "documentation": "Employee benefit plan vested percentage.",
        "terseLabel": "Vest percentage"
       }
      }
     },
     "auth_ref": []
    },
    "dei_EntityCentralIndexKey": {
     "xbrltype": "centralIndexKeyItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2025",
     "localname": "EntityCentralIndexKey",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "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": [
      "r128"
     ]
    },
    "dei_EntityDomain": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2025",
     "localname": "EntityDomain",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlan",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlanAdditionalInformationDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfPlanInvestmentsWithReportedNavDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfPlansInvestmentsMeasuredAtFairValueOnRecurringBasisDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueOfMeasurements",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueOfMeasurementsTables",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFederalIncomeTaxStatus",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFederalIncomeTaxStatusAdditionalInformationDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureNonexemptPartyininterestTransactions",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureNonexemptPartyininterestTransactionsAdditionalInformationDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosurePlanTermination",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureRelatedpartyTransactionsAndExemptPartyininterestTransactions",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureRelatedpartyTransactionsAndExemptPartyininterestTransactionsAdditionalInformationDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfAssetsHeldAtEndOfYear",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfAssetsHeldAtEndOfYearScheduleOfAssetsDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfAssetsHeldAtEndOfYearTables",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfDelinquentParticipantContributions1",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfDelinquentParticipantContributionsDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfDelinquentParticipantContributionsTables",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureSignificantAccountingPoliciesPolicies",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPolicies",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesAdditionalInformationDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementOfChangesInNetAssetsAvailableForBenefits",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementsOfNetAssetsAvailableForBenefits"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Entity [Domain]",
        "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_EntityRegistrantName": {
     "xbrltype": "normalizedStringItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2025",
     "localname": "EntityRegistrantName",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DocumentDocumentAndEntityInformation"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Entity 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": [
      "r128"
     ]
    },
    "dei_EntityTaxIdentificationNumber": {
     "xbrltype": "employerIdItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2025",
     "localname": "EntityTaxIdentificationNumber",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfAssetsHeldAtEndOfYearScheduleOfAssetsDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfDelinquentParticipantContributionsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Entity Tax Identification Number",
        "documentation": "The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS."
       }
      }
     },
     "auth_ref": [
      "r128"
     ]
    },
    "us-gaap_FairValueByFairValueHierarchyLevelAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2025",
     "localname": "FairValueByFairValueHierarchyLevelAxis",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfPlanInvestmentsWithReportedNavDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfPlansInvestmentsMeasuredAtFairValueOnRecurringBasisDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Fair Value Hierarchy and NAV [Axis]"
       }
      }
     },
     "auth_ref": [
      "r25",
      "r26",
      "r27",
      "r28",
      "r31",
      "r32",
      "r34",
      "r90",
      "r126"
     ]
    },
    "us-gaap_FairValueInputsLevel12And3Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2025",
     "localname": "FairValueInputsLevel12And3Member",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfPlansInvestmentsMeasuredAtFairValueOnRecurringBasisDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member]",
        "terseLabel": "Level 1, Level 2 and Level 3"
       }
      }
     },
     "auth_ref": [
      "r166",
      "r180",
      "r182"
     ]
    },
    "us-gaap_FairValueInputsLevel1Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2025",
     "localname": "FairValueInputsLevel1Member",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfPlansInvestmentsMeasuredAtFairValueOnRecurringBasisDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Fair Value, Inputs, Level 1 [Member]",
        "terseLabel": "Active Markets for Identical Assets (Level 1)"
       }
      }
     },
     "auth_ref": [
      "r25",
      "r31",
      "r114",
      "r126"
     ]
    },
    "us-gaap_FairValueMeasuredAtNetAssetValuePerShareMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2025",
     "localname": "FairValueMeasuredAtNetAssetValuePerShareMember",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfPlanInvestmentsWithReportedNavDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfPlansInvestmentsMeasuredAtFairValueOnRecurringBasisDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Fair Value Measured at Net Asset Value Per Share [Member]",
        "terseLabel": "Fair Value Measured at NAV Per Share"
       }
      }
     },
     "auth_ref": [
      "r34",
      "r114"
     ]
    },
    "us-gaap_FairValueMeasurementsFairValueHierarchyDomain": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2025",
     "localname": "FairValueMeasurementsFairValueHierarchyDomain",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfPlanInvestmentsWithReportedNavDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfPlansInvestmentsMeasuredAtFairValueOnRecurringBasisDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Fair Value Hierarchy and NAV [Domain]"
       }
      }
     },
     "auth_ref": [
      "r25",
      "r26",
      "r27",
      "r28",
      "r31",
      "r32",
      "r34",
      "r90",
      "r126"
     ]
    },
    "us-gaap_InvestmentIdentifierAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2025",
     "localname": "InvestmentIdentifierAxis",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfAssetsHeldAtEndOfYearScheduleOfAssetsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Investment, Identifier [Axis]"
       }
      }
     },
     "auth_ref": [
      "r83",
      "r139",
      "r140",
      "r141",
      "r142",
      "r145",
      "r146",
      "r147",
      "r148",
      "r149",
      "r150",
      "r152",
      "r153",
      "r154",
      "r155",
      "r156",
      "r157",
      "r158",
      "r160",
      "r161",
      "r162",
      "r163",
      "r164"
     ]
    },
    "us-gaap_InvestmentTypeAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2025",
     "localname": "InvestmentTypeAxis",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfPlanInvestmentsWithReportedNavDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfPlansInvestmentsMeasuredAtFairValueOnRecurringBasisDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureRelatedpartyTransactionsAndExemptPartyininterestTransactionsAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Investment Type [Axis]"
       }
      }
     },
     "auth_ref": [
      "r11",
      "r12",
      "r13",
      "r14",
      "r15",
      "r16",
      "r17",
      "r18",
      "r19",
      "r20",
      "r21",
      "r24",
      "r25",
      "r26",
      "r27",
      "r28",
      "r31",
      "r32",
      "r34",
      "r35",
      "r36",
      "r37",
      "r38",
      "r39",
      "r40",
      "r56",
      "r60",
      "r61",
      "r62",
      "r63",
      "r64",
      "r65",
      "r71",
      "r72",
      "r73",
      "r74",
      "r75",
      "r83",
      "r89",
      "r95",
      "r99",
      "r100",
      "r103",
      "r104",
      "r105",
      "r106",
      "r107",
      "r108",
      "r109",
      "r110",
      "r111",
      "r112",
      "r113",
      "r116",
      "r117",
      "r118",
      "r119",
      "r120",
      "r121",
      "r122",
      "r123",
      "r124",
      "r126",
      "r127",
      "r142",
      "r165",
      "r177"
     ]
    },
    "us-gaap_InvestmentTypeCategorizationMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2025",
     "localname": "InvestmentTypeCategorizationMember",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfPlanInvestmentsWithReportedNavDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfPlansInvestmentsMeasuredAtFairValueOnRecurringBasisDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureRelatedpartyTransactionsAndExemptPartyininterestTransactionsAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Investments [Domain]"
       }
      }
     },
     "auth_ref": [
      "r11",
      "r12",
      "r13",
      "r14",
      "r15",
      "r16",
      "r17",
      "r18",
      "r19",
      "r20",
      "r21",
      "r24",
      "r25",
      "r26",
      "r27",
      "r28",
      "r31",
      "r32",
      "r34",
      "r35",
      "r36",
      "r37",
      "r38",
      "r39",
      "r40",
      "r56",
      "r60",
      "r61",
      "r62",
      "r63",
      "r64",
      "r65",
      "r71",
      "r72",
      "r73",
      "r74",
      "r75",
      "r83",
      "r89",
      "r95",
      "r99",
      "r100",
      "r103",
      "r104",
      "r105",
      "r106",
      "r107",
      "r108",
      "r109",
      "r110",
      "r111",
      "r112",
      "r113",
      "r116",
      "r117",
      "r118",
      "r119",
      "r120",
      "r121",
      "r122",
      "r123",
      "r124",
      "r126",
      "r127",
      "r142",
      "r165",
      "r177"
     ]
    },
    "dei_LegalEntityAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2025",
     "localname": "LegalEntityAxis",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlan",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlanAdditionalInformationDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfPlanInvestmentsWithReportedNavDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfPlansInvestmentsMeasuredAtFairValueOnRecurringBasisDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueOfMeasurements",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueOfMeasurementsTables",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFederalIncomeTaxStatus",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFederalIncomeTaxStatusAdditionalInformationDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureNonexemptPartyininterestTransactions",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureNonexemptPartyininterestTransactionsAdditionalInformationDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosurePlanTermination",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureRelatedpartyTransactionsAndExemptPartyininterestTransactions",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureRelatedpartyTransactionsAndExemptPartyininterestTransactionsAdditionalInformationDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfAssetsHeldAtEndOfYear",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfAssetsHeldAtEndOfYearScheduleOfAssetsDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfAssetsHeldAtEndOfYearTables",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfDelinquentParticipantContributions1",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfDelinquentParticipantContributionsDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfDelinquentParticipantContributionsTables",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureSignificantAccountingPoliciesPolicies",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPolicies",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesAdditionalInformationDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementOfChangesInNetAssetsAvailableForBenefits",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/StatementStatementsOfNetAssetsAvailableForBenefits"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Legal Entity [Axis]",
        "documentation": "The set of legal entities associated with a report."
       }
      }
     },
     "auth_ref": []
    },
    "srt_MaximumMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/srt/2025",
     "localname": "MaximumMember",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlanAdditionalInformationDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfAssetsHeldAtEndOfYearScheduleOfAssetsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Maximum [Member]",
        "terseLabel": "Maximum"
       }
      }
     },
     "auth_ref": [
      "r28",
      "r126",
      "r134",
      "r142"
     ]
    },
    "srt_MinimumMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/srt/2025",
     "localname": "MinimumMember",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlanAdditionalInformationDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfAssetsHeldAtEndOfYearScheduleOfAssetsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Minimum [Member]",
        "terseLabel": "Minimum"
       }
      }
     },
     "auth_ref": [
      "r28",
      "r126",
      "r134",
      "r142"
     ]
    },
    "us-gaap_MoneyMarketFundsMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2025",
     "localname": "MoneyMarketFundsMember",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfPlansInvestmentsMeasuredAtFairValueOnRecurringBasisDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Money Market Funds [Member]",
        "terseLabel": "Money Market Fund"
       }
      }
     },
     "auth_ref": [
      "r134",
      "r179",
      "r182",
      "r186"
     ]
    },
    "us-gaap_MutualFundMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2025",
     "localname": "MutualFundMember",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfPlansInvestmentsMeasuredAtFairValueOnRecurringBasisDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Mutual Fund [Member]",
        "terseLabel": "Mutual Funds"
       }
      }
     },
     "auth_ref": [
      "r104",
      "r115",
      "r116",
      "r125",
      "r126",
      "r127"
     ]
    },
    "brka_NonexemptParty-In-InterestTransactionsAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://www.berkshirehathaway.com/20251231",
     "localname": "NonexemptParty-In-InterestTransactionsAbstract",
     "lang": {
      "en-us": {
       "role": {
        "label": "Nonexempt Party-In-Interest Transactions [Abstract]",
        "documentation": "Nonexempt Party-In-Interest Transactions."
       }
      }
     },
     "auth_ref": []
    },
    "brka_NonexemptParty-In-InterestTransactionsLineItems": {
     "xbrltype": "stringItemType",
     "nsuri": "http://www.berkshirehathaway.com/20251231",
     "localname": "NonexemptParty-In-InterestTransactionsLineItems",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureNonexemptPartyininterestTransactions",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureNonexemptPartyininterestTransactionsAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Nonexempt Party-In-Interest Transactions [Line Items]",
        "documentation": "Nonexempt Party-In-Interest Transactions."
       }
      }
     },
     "auth_ref": []
    },
    "brka_NonexemptParty-In-InterestTransactionsTable": {
     "xbrltype": "stringItemType",
     "nsuri": "http://www.berkshirehathaway.com/20251231",
     "localname": "NonexemptParty-In-InterestTransactionsTable",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureNonexemptPartyininterestTransactions",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureNonexemptPartyininterestTransactionsAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Nonexempt Party-In-Interest Transactions [Table]",
        "documentation": "Nonexempt Party-In-Interest Transactions."
       }
      }
     },
     "auth_ref": []
    },
    "brka_ParticipantContributionsAndLoanPayments": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.berkshirehathaway.com/20251231",
     "localname": "ParticipantContributionsAndLoanPayments",
     "crdr": "debit",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureNonexemptPartyininterestTransactionsAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Participant contributions and loan payments",
        "documentation": "Participant contributions and loan payments"
       }
      }
     },
     "auth_ref": []
    },
    "srt_RangeAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/srt/2025",
     "localname": "RangeAxis",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlanAdditionalInformationDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfAssetsHeldAtEndOfYearScheduleOfAssetsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Statistical Measurement [Axis]"
       }
      }
     },
     "auth_ref": [
      "r28",
      "r126",
      "r134",
      "r142"
     ]
    },
    "srt_RangeMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/srt/2025",
     "localname": "RangeMember",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlanAdditionalInformationDetails",
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureScheduleOfAssetsHeldAtEndOfYearScheduleOfAssetsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Statistical Measurement [Domain]"
       }
      }
     },
     "auth_ref": [
      "r28",
      "r126",
      "r134",
      "r142"
     ]
    },
    "brka_SalariedEmployeesAndNon-UnionHourlyEmployeesMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.berkshirehathaway.com/20251231",
     "localname": "SalariedEmployeesAndNon-UnionHourlyEmployeesMember",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlanAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Salaried Employees and Non-union Hourly Employees.",
        "terseLabel": "Salaried Employees and Non-union Hourly Employees",
        "label": "Salaried Employees and Non-union Hourly Employees [Member]"
       }
      }
     },
     "auth_ref": []
    },
    "brka_SummaryOfPlanInvestmentsWithReportedNAVTableTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://www.berkshirehathaway.com/20251231",
     "localname": "SummaryOfPlanInvestmentsWithReportedNAVTableTextBlock",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureFairValueOfMeasurementsTables"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Summary of Plan Investments with Reported NAV [Table Text Block]",
        "documentation": "Summary of plan investments with reported NAV.",
        "terseLabel": "Summary of Plan Investments with Reported NAV"
       }
      }
     },
     "auth_ref": []
    },
    "brka_UnionHourlyEmployeesMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.berkshirehathaway.com/20251231",
     "localname": "UnionHourlyEmployeesMember",
     "presentation": [
      "http://www.berkshirehathaway.com/20251231/taxonomy/role/DisclosureDescriptionOfPlanAdditionalInformationDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Union Hourly Employees",
        "terseLabel": "Union Hourly Employees",
        "label": "Union Hourly Employees [Member]"
       }
      }
     },
     "auth_ref": []
    }
   }
  }
 },
 "std_ref": {
  "r0": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "250",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(b)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483443/250-10-50-1"
  },
  "r1": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "250",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(b)(3)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483443/250-10-50-1"
  },
  "r2": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "250",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "5",
   "Subparagraph": "(SAB Topic 11.M.Q2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480530/250-10-S99-5"
  },
  "r3": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "250",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "6",
   "Subparagraph": "(SAB Topic 11.M)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480530/250-10-S99-6"
  },
  "r4": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "275",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482861/275-10-50-1"
  },
  "r5": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "275",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482861/275-10-50-1"
  },
  "r6": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "275",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482861/275-10-50-1"
  },
  "r7": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "275",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "11",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482861/275-10-50-11"
  },
  "r8": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "275",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "11",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482861/275-10-50-11"
  },
  "r9": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "275",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "12",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482861/275-10-50-12"
  },
  "r10": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "275",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482861/275-10-50-4"
  },
  "r11": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "815",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4A",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4A"
  },
  "r12": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "815",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4A",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4A"
  },
  "r13": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "815",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4B",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4B"
  },
  "r14": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "815",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4B",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4B"
  },
  "r15": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "815",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4K",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4K"
  },
  "r16": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "815",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4K",
   "Subparagraph": "(a)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4K"
  },
  "r17": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "815",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4K",
   "Subparagraph": "(a)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4K"
  },
  "r18": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "815",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4K",
   "Subparagraph": "(a)(3)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4K"
  },
  "r19": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "815",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4K",
   "Subparagraph": "(a)(4)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4K"
  },
  "r20": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "815",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4K",
   "Subparagraph": "(a)(5)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4K"
  },
  "r21": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "815",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4K",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4K"
  },
  "r22": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "815",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "7A",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-7A"
  },
  "r23": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2"
  },
  "r24": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2"
  },
  "r25": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2"
  },
  "r26": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(bbb)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2"
  },
  "r27": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(bbb)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2"
  },
  "r28": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(bbb)(2)(i)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2"
  },
  "r29": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(g)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2"
  },
  "r30": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-3"
  },
  "r31": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-3"
  },
  "r32": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-3"
  },
  "r33": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6A",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-6A"
  },
  "r34": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6A",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-6A"
  },
  "r35": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6A",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-6A"
  },
  "r36": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6A",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-6A"
  },
  "r37": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6A",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-6A"
  },
  "r38": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6A",
   "Subparagraph": "(e)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-6A"
  },
  "r39": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6A",
   "Subparagraph": "(f)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-6A"
  },
  "r40": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6A",
   "Subparagraph": "(h)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-6A"
  },
  "r41": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "8",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-8"
  },
  "r42": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "825",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "21",
   "Subparagraph": "(c)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482907/825-10-50-21"
  },
  "r43": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "825",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "21",
   "Subparagraph": "(d)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482907/825-10-50-21"
  },
  "r44": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "850",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483326/850-10-50-1"
  },
  "r45": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "850",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483326/850-10-50-1"
  },
  "r46": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "850",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483326/850-10-50-1"
  },
  "r47": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "850",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483326/850-10-50-1"
  },
  "r48": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "2",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477063/962-205-45-2"
  },
  "r49": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "7",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477063/962-205-45-7"
  },
  "r50": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "7",
   "Subparagraph": "(f)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477063/962-205-45-7"
  },
  "r51": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "7",
   "Subparagraph": "(h)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477063/962-205-45-7"
  },
  "r52": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478416/962-205-50-1"
  },
  "r53": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478416/962-205-50-1"
  },
  "r54": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(g)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478416/962-205-50-1"
  },
  "r55": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(j)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478416/962-205-50-1"
  },
  "r56": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6A-02(a))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477804/962-205-S99-1"
  },
  "r57": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6A-02(b))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477804/962-205-S99-1"
  },
  "r58": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6A-02(c))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477804/962-205-S99-1"
  },
  "r59": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6A-02(d))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477804/962-205-S99-1"
  },
  "r60": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6A-03(1))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477804/962-205-S99-1"
  },
  "r61": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6A-03(2)(a))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477804/962-205-S99-1"
  },
  "r62": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6A-03(2)(b)(1))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477804/962-205-S99-1"
  },
  "r63": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6A-03(2)(b)(2))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477804/962-205-S99-1"
  },
  "r64": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6A-03(2))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477804/962-205-S99-1"
  },
  "r65": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6A-03(3))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477804/962-205-S99-1"
  },
  "r66": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6A-03(6)(a))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477804/962-205-S99-1"
  },
  "r67": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6A-03(6)(b))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477804/962-205-S99-1"
  },
  "r68": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6A-03(7)(a))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477804/962-205-S99-1"
  },
  "r69": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6A-03(7)(b))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477804/962-205-S99-1"
  },
  "r70": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6A-03(9))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477804/962-205-S99-1"
  },
  "r71": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6A-04(1)(a)(1))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477804/962-205-S99-1"
  },
  "r72": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6A-04(2)(a)(1))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477804/962-205-S99-1"
  },
  "r73": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6A-04(2)(a)(2))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477804/962-205-S99-1"
  },
  "r74": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6A-04(2)(a)(3))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477804/962-205-S99-1"
  },
  "r75": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6A-04(2)(b))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477804/962-205-S99-1"
  },
  "r76": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6A-04(3)(b))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477804/962-205-S99-1"
  },
  "r77": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6A-04(4)(a)(2))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477804/962-205-S99-1"
  },
  "r78": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6A-04(4)(b))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477804/962-205-S99-1"
  },
  "r79": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6A-04(5)(b))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477804/962-205-S99-1"
  },
  "r80": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6A-04(5)(c))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477804/962-205-S99-1"
  },
  "r81": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6A-04(6))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477804/962-205-S99-1"
  },
  "r82": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6A-04(7))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477804/962-205-S99-1"
  },
  "r83": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6A-05(a)(Schedule I))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477804/962-205-S99-1"
  },
  "r84": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6A-05(a)(Schedule II))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477804/962-205-S99-1"
  },
  "r85": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6A-05(a)(Schedule III))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477804/962-205-S99-1"
  },
  "r86": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "310",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "1",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478642/962-310-45-1"
  },
  "r87": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "310",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "2",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478642/962-310-45-2"
  },
  "r88": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "35",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478844/962-325-35-1B"
  },
  "r89": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "5",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477509/962-325-45-5"
  },
  "r90": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "6",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477509/962-325-45-6"
  },
  "r91": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "8",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477509/962-325-45-8"
  },
  "r92": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477783/962-325-50-1"
  },
  "r93": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2A",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477783/962-325-50-2A"
  },
  "r94": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2B",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477783/962-325-50-2B"
  },
  "r95": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(f)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477783/962-325-50-3"
  },
  "r96": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477783/962-325-50-5"
  },
  "r97": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "7",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477783/962-325-50-7"
  },
  "r98": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "7",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477783/962-325-50-7"
  },
  "r99": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "8A",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477783/962-325-50-8A"
  },
  "r100": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "8B",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477783/962-325-50-8B"
  },
  "r101": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "40",
   "Name": "Accounting Standards Codification",
   "Section": "25",
   "Paragraph": "1",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479750/962-40-25-1"
  },
  "r102": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "962",
   "SubTopic": "40",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479684/962-40-50-1"
  },
  "r103": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "815",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4L",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4L"
  },
  "r104": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "5",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477509/962-325-45-5"
  },
  "r105": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "5",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477509/962-325-45-5"
  },
  "r106": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "5",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477509/962-325-45-5"
  },
  "r107": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "5",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477509/962-325-45-5"
  },
  "r108": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "5",
   "Subparagraph": "(e)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477509/962-325-45-5"
  },
  "r109": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "5",
   "Subparagraph": "(f)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477509/962-325-45-5"
  },
  "r110": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "5",
   "Subparagraph": "(g)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477509/962-325-45-5"
  },
  "r111": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "5",
   "Subparagraph": "(h)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477509/962-325-45-5"
  },
  "r112": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "5",
   "Subparagraph": "(j)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477509/962-325-45-5"
  },
  "r113": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "5",
   "Subparagraph": "(k)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477509/962-325-45-5"
  },
  "r114": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "6",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477509/962-325-45-6"
  },
  "r115": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477783/962-325-50-1"
  },
  "r116": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "8A",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477783/962-325-50-8A"
  },
  "r117": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "8A",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477783/962-325-50-8A"
  },
  "r118": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "8A",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477783/962-325-50-8A"
  },
  "r119": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "8A",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477783/962-325-50-8A"
  },
  "r120": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "8A",
   "Subparagraph": "(e)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477783/962-325-50-8A"
  },
  "r121": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "8A",
   "Subparagraph": "(f)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477783/962-325-50-8A"
  },
  "r122": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "8A",
   "Subparagraph": "(g)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477783/962-325-50-8A"
  },
  "r123": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "8A",
   "Subparagraph": "(h)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477783/962-325-50-8A"
  },
  "r124": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "8A",
   "Subparagraph": "(j)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477783/962-325-50-8A"
  },
  "r125": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "8B",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477783/962-325-50-8B"
  },
  "r126": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "17",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478873/962-325-55-17"
  },
  "r127": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "18",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478873/962-325-55-18"
  },
  "r128": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Exchange Act",
   "Number": "240",
   "Section": "12",
   "Subsection": "b-2"
  },
  "r129": {
   "role": "http://www.xbrl.org/2003/role/recommendedDisclosureRef",
   "Topic": "825",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "23",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482907/825-10-50-23"
  },
  "r130": {
   "role": "http://www.xbrl.org/2003/role/recommendedDisclosureRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "7",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477063/962-205-45-7"
  },
  "r131": {
   "role": "http://www.xbrl.org/2003/role/recommendedDisclosureRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6A-05(a)(Schedule III))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477804/962-205-S99-1"
  },
  "r132": {
   "role": "http://www.xbrl.org/2003/role/recommendedDisclosureRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2B",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477783/962-325-50-2B"
  },
  "r133": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(a)",
   "SubTopic": "205",
   "Topic": "962",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478416/962-205-50-1"
  },
  "r134": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6A-05(a)(Schedule I))",
   "SubTopic": "205",
   "Topic": "962",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477804/962-205-S99-1"
  },
  "r135": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6A-05(a)(Schedule III))",
   "SubTopic": "205",
   "Topic": "962",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477804/962-205-S99-1"
  },
  "r136": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Name": "Employee Retirement Income Security Act of 1974",
   "Number": "2520",
   "Section": "103",
   "Subsection": "10",
   "Paragraph": "a",
   "Publisher": "DOL-EBSA"
  },
  "r137": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Name": "Employee Retirement Income Security Act of 1974",
   "Number": "2520",
   "Section": "103",
   "Subsection": "10",
   "Paragraph": "b",
   "Subparagraph": "(1)",
   "Publisher": "DOL-EBSA"
  },
  "r138": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Name": "Employee Retirement Income Security Act of 1974",
   "Number": "2520",
   "Section": "103",
   "Subsection": "10",
   "Paragraph": "b",
   "Subparagraph": "(1)(i)",
   "Publisher": "DOL-EBSA"
  },
  "r139": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Name": "Employee Retirement Income Security Act of 1974",
   "Number": "2520",
   "Section": "103",
   "Subsection": "10",
   "Paragraph": "b",
   "Subparagraph": "(1)(i)(A)",
   "Publisher": "DOL-EBSA"
  },
  "r140": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Name": "Employee Retirement Income Security Act of 1974",
   "Number": "2520",
   "Section": "103",
   "Subsection": "10",
   "Paragraph": "b",
   "Subparagraph": "(1)(i)(B)",
   "Publisher": "DOL-EBSA"
  },
  "r141": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Name": "Employee Retirement Income Security Act of 1974",
   "Number": "2520",
   "Section": "103",
   "Subsection": "10",
   "Paragraph": "b",
   "Subparagraph": "(1)(i)(C)",
   "Publisher": "DOL-EBSA"
  },
  "r142": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Name": "Employee Retirement Income Security Act of 1974",
   "Number": "2520",
   "Section": "103",
   "Subsection": "10",
   "Paragraph": "b",
   "Subparagraph": "(1)(i)(D)",
   "Publisher": "DOL-EBSA"
  },
  "r143": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Name": "Employee Retirement Income Security Act of 1974",
   "Number": "2520",
   "Section": "103",
   "Subsection": "10",
   "Paragraph": "b",
   "Subparagraph": "(1)(ii)",
   "Publisher": "DOL-EBSA"
  },
  "r144": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Name": "Employee Retirement Income Security Act of 1974",
   "Number": "2520",
   "Section": "103",
   "Subsection": "10",
   "Paragraph": "b",
   "Subparagraph": "(2)",
   "Publisher": "DOL-EBSA"
  },
  "r145": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Name": "Employee Retirement Income Security Act of 1974",
   "Number": "2520",
   "Section": "103",
   "Subsection": "10",
   "Paragraph": "b",
   "Subparagraph": "(2)(i)(A)",
   "Publisher": "DOL-EBSA"
  },
  "r146": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Name": "Employee Retirement Income Security Act of 1974",
   "Number": "2520",
   "Section": "103",
   "Subsection": "10",
   "Paragraph": "b",
   "Subparagraph": "(2)(i)(B)",
   "Publisher": "DOL-EBSA"
  },
  "r147": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Name": "Employee Retirement Income Security Act of 1974",
   "Number": "2520",
   "Section": "103",
   "Subsection": "10",
   "Paragraph": "b",
   "Subparagraph": "(2)(i)(C)",
   "Publisher": "DOL-EBSA"
  },
  "r148": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Name": "Employee Retirement Income Security Act of 1974",
   "Number": "2520",
   "Section": "103",
   "Subsection": "10",
   "Paragraph": "b",
   "Subparagraph": "(2)(i)(D)",
   "Publisher": "DOL-EBSA"
  },
  "r149": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Name": "Employee Retirement Income Security Act of 1974",
   "Number": "2520",
   "Section": "103",
   "Subsection": "10",
   "Paragraph": "b",
   "Subparagraph": "(3)",
   "Publisher": "DOL-EBSA"
  },
  "r150": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Name": "Employee Retirement Income Security Act of 1974",
   "Number": "2520",
   "Section": "103",
   "Subsection": "10",
   "Paragraph": "b",
   "Subparagraph": "(4)",
   "Publisher": "DOL-EBSA"
  },
  "r151": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Name": "Employee Retirement Income Security Act of 1974",
   "Number": "2520",
   "Section": "103",
   "Subsection": "6",
   "Paragraph": "d",
   "Subparagraph": "(1)",
   "Publisher": "DOL-EBSA"
  },
  "r152": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Name": "Employee Retirement Income Security Act of 1974",
   "Number": "2520",
   "Section": "103",
   "Subsection": "6",
   "Paragraph": "d",
   "Subparagraph": "(1)(i)",
   "Publisher": "DOL-EBSA"
  },
  "r153": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Name": "Employee Retirement Income Security Act of 1974",
   "Number": "2520",
   "Section": "103",
   "Subsection": "6",
   "Paragraph": "d",
   "Subparagraph": "(1)(ii)",
   "Publisher": "DOL-EBSA"
  },
  "r154": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Name": "Employee Retirement Income Security Act of 1974",
   "Number": "2520",
   "Section": "103",
   "Subsection": "6",
   "Paragraph": "d",
   "Subparagraph": "(1)(iii)",
   "Publisher": "DOL-EBSA"
  },
  "r155": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Name": "Employee Retirement Income Security Act of 1974",
   "Number": "2520",
   "Section": "103",
   "Subsection": "6",
   "Paragraph": "d",
   "Subparagraph": "(1)(iv)",
   "Publisher": "DOL-EBSA"
  },
  "r156": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Name": "Employee Retirement Income Security Act of 1974",
   "Number": "2520",
   "Section": "103",
   "Subsection": "6",
   "Paragraph": "d",
   "Subparagraph": "(1)(v)",
   "Publisher": "DOL-EBSA"
  },
  "r157": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Name": "Employee Retirement Income Security Act of 1974",
   "Number": "2520",
   "Section": "103",
   "Subsection": "6",
   "Paragraph": "d",
   "Subparagraph": "(1)(vi)",
   "Publisher": "DOL-EBSA"
  },
  "r158": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Name": "Employee Retirement Income Security Act of 1974",
   "Number": "2520",
   "Section": "103",
   "Subsection": "6",
   "Paragraph": "d",
   "Subparagraph": "(1)(vii)",
   "Publisher": "DOL-EBSA"
  },
  "r159": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Name": "Employee Retirement Income Security Act of 1974",
   "Number": "2520",
   "Section": "103",
   "Subsection": "6",
   "Paragraph": "d",
   "Subparagraph": "(2)",
   "Publisher": "DOL-EBSA"
  },
  "r160": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Name": "Employee Retirement Income Security Act of 1974",
   "Number": "2520",
   "Section": "103",
   "Subsection": "6",
   "Paragraph": "d",
   "Subparagraph": "(2)(i)",
   "Publisher": "DOL-EBSA"
  },
  "r161": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Name": "Employee Retirement Income Security Act of 1974",
   "Number": "2520",
   "Section": "103",
   "Subsection": "6",
   "Paragraph": "d",
   "Subparagraph": "(2)(ii)",
   "Publisher": "DOL-EBSA"
  },
  "r162": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Name": "Employee Retirement Income Security Act of 1974",
   "Number": "2520",
   "Section": "103",
   "Subsection": "6",
   "Paragraph": "d",
   "Subparagraph": "(2)(iii)",
   "Publisher": "DOL-EBSA"
  },
  "r163": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Name": "Employee Retirement Income Security Act of 1974",
   "Number": "2520",
   "Section": "103",
   "Subsection": "6",
   "Paragraph": "d",
   "Subparagraph": "(2)(iv)",
   "Publisher": "DOL-EBSA"
  },
  "r164": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Name": "Employee Retirement Income Security Act of 1974",
   "Number": "2520",
   "Section": "103",
   "Subsection": "6",
   "Paragraph": "d",
   "Subparagraph": "(2)(v)",
   "Publisher": "DOL-EBSA"
  },
  "r165": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "275",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "18",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482861/275-10-50-18"
  },
  "r166": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-3"
  },
  "r167": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "7",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477063/962-205-45-7"
  },
  "r168": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(g)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478416/962-205-50-1"
  },
  "r169": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6A-01)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477804/962-205-S99-1"
  },
  "r170": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6A-02)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477804/962-205-S99-1"
  },
  "r171": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6A-03(1))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477804/962-205-S99-1"
  },
  "r172": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6A-04(1)(a)(1))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477804/962-205-S99-1"
  },
  "r173": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6A-04(2)(a)(1))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477804/962-205-S99-1"
  },
  "r174": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6A-04(2)(b))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477804/962-205-S99-1"
  },
  "r175": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6A-04(4)(a)(1))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477804/962-205-S99-1"
  },
  "r176": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6A-04(4)(b))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477804/962-205-S99-1"
  },
  "r177": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "962",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6A-05(a)(Schedule II))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477804/962-205-S99-1"
  },
  "r178": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "962",
   "SubTopic": "235",
   "Name": "Accounting Standards Codification",
   "Section": "S50",
   "Paragraph": "1",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479143/962-235-S50-1"
  },
  "r179": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "5",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477509/962-325-45-5"
  },
  "r180": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "6",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477509/962-325-45-6"
  },
  "r181": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "8",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477509/962-325-45-8"
  },
  "r182": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477783/962-325-50-1"
  },
  "r183": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2B",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477783/962-325-50-2B"
  },
  "r184": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(f)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477783/962-325-50-3"
  },
  "r185": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477783/962-325-50-5"
  },
  "r186": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "8A",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477783/962-325-50-8A"
  },
  "r187": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "8A",
   "Subparagraph": "(g)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477783/962-325-50-8A"
  },
  "r188": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "962",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "8B",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477783/962-325-50-8B"
  }
 }
}
