{ "version": "2.2", "instance": { "mrsh-20260622.htm": { "nsprefix": "mrsh", "nsuri": "http://www.mmc.com/20260622", "dts": { "inline": { "local": [ "mrsh-20260622.htm" ] }, "schema": { "local": [ "mrsh-20260622.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/role/negated-2009-12-16.xsd", "http://www.xbrl.org/lrr/role/net-2009-12-16.xsd", "http://www.xbrl.org/lrr/role/reference-2009-12-16.xsd", "https://www.xbrl.org/2020/extensible-enumerations-2.0.xsd", "https://www.xbrl.org/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/2026/elts/srt-2026.xsd", "https://xbrl.fasb.org/srt/2026/elts/srt-roles-2026.xsd", "https://xbrl.fasb.org/srt/2026/elts/srt-types-2026.xsd", "https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd", "https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd", "https://xbrl.fasb.org/us-gaap/2026/elts/us-roles-2026.xsd", "https://xbrl.fasb.org/us-gaap/2026/elts/us-types-2026.xsd", "https://xbrl.sec.gov/country/2026/country-2026.xsd", "https://xbrl.sec.gov/dei/2026/dei-2026.xsd", "https://xbrl.sec.gov/stpr/2026/stpr-2026.xsd" ] }, "calculationLink": { "local": [ "mrsh-20260622_cal.xml" ] }, "definitionLink": { "local": [ "mrsh-20260622_def.xml" ] }, "labelLink": { "local": [ "mrsh-20260622_lab.xml" ] }, "presentationLink": { "local": [ "mrsh-20260622_pre.xml" ] } }, "keyStandard": 79, "keyCustom": 26, "axisStandard": 6, "axisCustom": 1, "memberStandard": 18, "memberCustom": 14, "hidden": { "total": 6, "http://xbrl.sec.gov/dei/2026": 4, "http://www.mmc.com/20260622": 2 }, "contextCount": 158, "entityCount": 1, "segmentCount": 32, "elementCount": 200, "unitCount": 7, "baseTaxonomies": { "http://fasb.org/us-gaap-ebp/2026": 314, "http://xbrl.sec.gov/dei/2026": 9 }, "report": { "R1": { "role": "http://www.mmc.com/role/Cover", "longName": "0000001 - Document - Cover", "shortName": "Cover", "isDefault": "true", "groupType": "document", "subGroupType": "", "menuCat": "Cover", "order": "1", "firstAnchor": { "contextRef": "c-1", "name": "dei:DocumentType", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "span", "div", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "c-1", "name": "dei:DocumentType", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "span", "div", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true, "unique": true } }, "R2": { "role": "http://www.mmc.com/role/STATEMENTSOFNETASSETSAVAILABLEFORBENEFITS", "longName": "0000002 - 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-7", "name": "us-gaap-ebp:EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustFairValue", "unitRef": "usd", "xsiNil": "false", "lang": "en-US", "decimals": "0", "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap-ebp:EmployeeBenefitPlanInvestmentFairValueAndNavTableTextBlock", "ix:continuation", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true }, "uniqueAnchor": { "contextRef": "c-7", "name": "us-gaap-ebp:EmployeeBenefitPlanNoteReceivableFromParticipant", "unitRef": "usd", "xsiNil": "false", "lang": "en-US", "decimals": "0", "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "unique": true } }, "R3": { "role": "http://www.mmc.com/role/STATEMENTOFCHANGESINNETASSETSAVAILABLEFORBENEFITS", "longName": "0000003 - 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-2", "name": "us-gaap-ebp:EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForGainLossOnInvestment", "unitRef": "usd", "xsiNil": "false", "lang": "en-US", "decimals": "0", "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true }, "uniqueAnchor": { "contextRef": "c-2", "name": "us-gaap-ebp:EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForChangeInPlanInterestInMasterTrust", "unitRef": "usd", "xsiNil": "false", "lang": "en-US", "decimals": "0", "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "unique": true } }, "R4": { "role": "http://www.mmc.com/role/DescriptionofthePlan", "longName": "0000004 - Disclosure - Description of the Plan", "shortName": "Description of the Plan", "isDefault": "false", "groupType": "disclosure", "subGroupType": "", "menuCat": "Notes", "order": "4", "firstAnchor": { "contextRef": "c-2", "name": "us-gaap-ebp:EmployeeBenefitPlanDescriptionOfPlanTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "c-2", "name": "us-gaap-ebp:EmployeeBenefitPlanDescriptionOfPlanTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true, "unique": true } }, "R5": { "role": "http://www.mmc.com/role/SummaryofSignificantAccountingPolicies", "longName": "0000005 - Disclosure - Summary of Significant Accounting Policies", "shortName": "Summary of Significant Accounting Policies", "isDefault": "false", "groupType": "disclosure", "subGroupType": "", "menuCat": "Notes", "order": "5", "firstAnchor": { "contextRef": "c-2", "name": "us-gaap-ebp:EmployeeBenefitPlanSummaryOfAccountingPolicyTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "c-2", "name": "us-gaap-ebp:EmployeeBenefitPlanSummaryOfAccountingPolicyTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true, "unique": true } }, "R6": { "role": "http://www.mmc.com/role/InterestinMasterTrust", "longName": "0000006 - Disclosure - Interest in Master Trust", "shortName": "Interest in Master Trust", "isDefault": "false", "groupType": "disclosure", "subGroupType": "", "menuCat": "Notes", "order": "6", "firstAnchor": { "contextRef": "c-2", "name": "us-gaap-ebp:EmployeeBenefitPlanMasterTrustTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "c-2", "name": "us-gaap-ebp:EmployeeBenefitPlanMasterTrustTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true, "unique": true } }, "R7": { "role": "http://www.mmc.com/role/FairValueMeasurements", "longName": "0000007 - Disclosure - Fair Value Measurements", "shortName": "Fair Value Measurements", "isDefault": "false", "groupType": "disclosure", "subGroupType": "", "menuCat": "Notes", "order": "7", "firstAnchor": { "contextRef": "c-2", "name": "us-gaap-ebp:EmployeeBenefitPlanInvestmentFairValueAndNavTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true }, "uniqueAnchor": null }, "R8": { "role": "http://www.mmc.com/role/NetAssetValueNAVPerShare", "longName": "0000008 - Disclosure - Net Asset Value (NAV) Per Share", "shortName": "Net Asset Value (NAV) Per Share", "isDefault": "false", "groupType": "disclosure", "subGroupType": "", "menuCat": "Notes", "order": "8", "firstAnchor": { "contextRef": "c-2", "name": "us-gaap-ebp:EmployeeBenefitPlanInvestmentFairValueAndNavTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true }, "uniqueAnchor": null }, "R9": { "role": "http://www.mmc.com/role/ExemptPartyinInterestTransactions", "longName": "0000009 - Disclosure - Exempt Party in Interest Transactions", "shortName": "Exempt Party in Interest Transactions", "isDefault": "false", "groupType": "disclosure", "subGroupType": "", "menuCat": "Notes", "order": "9", "firstAnchor": { "contextRef": "c-2", "name": "us-gaap-ebp:EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "c-2", "name": "us-gaap-ebp:EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true, "unique": true } }, "R10": { "role": "http://www.mmc.com/role/NetTransferstoOtherPlan", "longName": "0000010 - Disclosure - Net Transfers to Other Plan", "shortName": "Net Transfers to Other Plan", "isDefault": "false", "groupType": "disclosure", "subGroupType": "", "menuCat": "Notes", "order": "10", "firstAnchor": { "contextRef": "c-2", "name": "mrsh:EBPNetTransfersToOtherPlanTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "c-2", "name": "mrsh:EBPNetTransfersToOtherPlanTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true, "unique": true } }, "R11": { "role": "http://www.mmc.com/role/FederalIncomeTaxStatus", "longName": "0000011 - Disclosure - Federal Income Tax Status", "shortName": "Federal Income Tax Status", "isDefault": "false", "groupType": "disclosure", "subGroupType": "", "menuCat": "Notes", "order": "11", "firstAnchor": { "contextRef": "c-2", "name": "us-gaap-ebp:EmployeeBenefitPlanTaxStatusTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "c-2", "name": "us-gaap-ebp:EmployeeBenefitPlanTaxStatusTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true, "unique": true } }, "R12": { "role": "http://www.mmc.com/role/PlanTermination", "longName": "0000012 - Disclosure - Plan Termination", "shortName": "Plan Termination", "isDefault": "false", "groupType": "disclosure", "subGroupType": "", "menuCat": "Notes", "order": "12", "firstAnchor": { "contextRef": "c-2", "name": "us-gaap-ebp:EmployeeBenefitPlanPlanTerminationTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "c-2", "name": "us-gaap-ebp:EmployeeBenefitPlanPlanTerminationTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true, "unique": true } }, "R13": { "role": "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500", "longName": "0000013 - Disclosure - Reconciliation of Financial Statements to Form 5500", "shortName": "Reconciliation of Financial Statements to Form 5500", "isDefault": "false", "groupType": "disclosure", "subGroupType": "", "menuCat": "Notes", "order": "13", "firstAnchor": { "contextRef": "c-2", "name": "us-gaap-ebp:EmployeeBenefitPlanReconciliationToForm5500TextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "c-2", "name": "us-gaap-ebp:EmployeeBenefitPlanReconciliationToForm5500TextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true, "unique": true } }, "R14": { "role": "http://www.mmc.com/role/SubsequentEvents", "longName": "0000014 - Disclosure - Subsequent Events", "shortName": "Subsequent Events", "isDefault": "false", "groupType": "disclosure", "subGroupType": "", "menuCat": "Notes", "order": "14", "firstAnchor": { "contextRef": "c-2", "name": "us-gaap-ebp:EmployeeBenefitPlanSubsequentEventTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "c-2", "name": "us-gaap-ebp:EmployeeBenefitPlanSubsequentEventTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true, "unique": true } }, "R15": { "role": "http://www.mmc.com/role/SCHEDULEHPARTIVLINE4iSCHEDULEOFASSETSHELDATENDOFYEAR", "longName": "0000015 - Disclosure - SCHEDULE H, PART IV, LINE 4i SCHEDULE OF ASSETS (HELD AT END OF YEAR)", "shortName": "SCHEDULE H, PART IV, LINE 4i SCHEDULE OF ASSETS (HELD AT END OF YEAR)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "", "menuCat": "Notes", "order": "15", "firstAnchor": { "contextRef": "c-2", "name": "us-gaap-ebp:EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTableTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "c-2", "name": "us-gaap-ebp:EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTableTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true, "unique": true } }, "R16": { "role": "http://www.mmc.com/role/SummaryofSignificantAccountingPoliciesPolicies", "longName": "0000016 - Disclosure - Summary of Significant Accounting Policies (Policies)", "shortName": "Summary of Significant Accounting Policies (Policies)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "policies", "menuCat": "Policies", "order": "16", "firstAnchor": { "contextRef": "c-2", "name": "us-gaap-ebp:EmployeeBenefitPlanBasisOfAccountingPolicyTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "ix:continuation", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "c-2", "name": "us-gaap-ebp:EmployeeBenefitPlanBasisOfAccountingPolicyTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "ix:continuation", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true, "unique": true } }, "R17": { "role": "http://www.mmc.com/role/InterestinMasterTrustTables", "longName": "0000017 - Disclosure - Interest in Master Trust (Tables)", "shortName": "Interest in Master Trust (Tables)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "tables", "menuCat": "Tables", "order": "17", "firstAnchor": { "contextRef": "c-2", "name": "us-gaap-ebp:EmployeeBenefitPlanMasterTrustTableTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "ix:continuation", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "c-2", "name": "us-gaap-ebp:EmployeeBenefitPlanMasterTrustTableTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "ix:continuation", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true, "unique": true } }, "R18": { "role": "http://www.mmc.com/role/FairValueMeasurementsTables", "longName": "0000018 - Disclosure - Fair Value Measurements (Tables)", "shortName": "Fair Value Measurements (Tables)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "tables", "menuCat": "Tables", "order": "18", "firstAnchor": { "contextRef": "c-2", "name": "us-gaap-ebp:EmployeeBenefitPlanInvestmentFairValueAndNavTableTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "ix:continuation", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true }, "uniqueAnchor": null }, "R19": { "role": "http://www.mmc.com/role/NetAssetValueNAVPerShareTables", "longName": "0000019 - Disclosure - Net Asset Value (NAV) Per Share (Tables)", "shortName": "Net Asset Value (NAV) Per Share (Tables)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "tables", "menuCat": "Tables", "order": "19", "firstAnchor": { "contextRef": "c-2", "name": "us-gaap-ebp:EmployeeBenefitPlanInvestmentFairValueAndNavTableTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "ix:continuation", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true }, "uniqueAnchor": null }, "R20": { "role": "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500Tables", "longName": "0000020 - Disclosure - Reconciliation of Financial Statements to Form 5500 (Tables)", "shortName": "Reconciliation of Financial Statements to Form 5500 (Tables)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "tables", "menuCat": "Tables", "order": "20", "firstAnchor": { "contextRef": "c-2", "name": "us-gaap-ebp:EmployeeBenefitPlanReconciliationToForm5500TableTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "c-2", "name": "us-gaap-ebp:EmployeeBenefitPlanReconciliationToForm5500TableTextBlock", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true, "unique": true } }, "R21": { "role": "http://www.mmc.com/role/DescriptionofthePlanDetails", "longName": "0000021 - Disclosure - Description of the Plan (Details)", "shortName": "Description of the Plan (Details)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "21", "firstAnchor": { "contextRef": "c-2", "name": "mrsh:EBPMinimumPlanEligibilityAge", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "c-2", "name": "mrsh:EBPMinimumPlanEligibilityAge", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true, "unique": true } }, "R22": { "role": "http://www.mmc.com/role/SummaryofSignificantAccountingPoliciesDetails", "longName": "0000022 - Disclosure - Summary of Significant Accounting Policies (Details)", "shortName": "Summary of Significant Accounting Policies (Details)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "22", "firstAnchor": { "contextRef": "c-7", "name": "us-gaap-ebp:EmployeeBenefitPlanInvestmentFairValue", "unitRef": "usd", "xsiNil": "false", "lang": "en-US", "decimals": "0", "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true }, "uniqueAnchor": { "contextRef": "c-7", "name": "us-gaap-ebp:EmployeeBenefitPlanInvestmentEmployerCommonStockToTotalAssetPercentage", "unitRef": "number", "xsiNil": "false", "lang": "en-US", "decimals": "2", "ancestors": [ "span", "div", "us-gaap-ebp:EbpRiskAndUncertaintyPolicyTextBlock", "ix:continuation", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "unique": true } }, "R23": { "role": "http://www.mmc.com/role/InterestinMasterTrustScheduleofMasterTrustNetAssetsDetails", "longName": "0000023 - Disclosure - Interest in Master Trust - Schedule of Master Trust Net Assets (Details)", "shortName": "Interest in Master Trust - Schedule of Master Trust Net Assets (Details)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "23", "firstAnchor": { "contextRef": "c-7", "name": "us-gaap-ebp:EmployeeBenefitPlanInvestmentFairValue", "unitRef": "usd", "xsiNil": "false", "lang": "en-US", "decimals": "0", "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true }, "uniqueAnchor": { "contextRef": "c-25", "name": "us-gaap-ebp:EmployeeBenefitPlanNetAssetAvailableForBenefit", "unitRef": "usd", "xsiNil": "false", "lang": "en-US", "decimals": "0", "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap-ebp:EmployeeBenefitPlanMasterTrustTableTextBlock", "ix:continuation", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "unique": true } }, "R24": { "role": "http://www.mmc.com/role/InterestinMasterTrustScheduleofNetInvestmentGainDetails", "longName": "0000024 - Disclosure - Interest in Master Trust - Schedule of Net Investment Gain (Details)", "shortName": "Interest in Master Trust - Schedule of Net Investment Gain (Details)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "24", "firstAnchor": { "contextRef": "c-2", "name": "us-gaap-ebp:EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForGainLossOnInvestment", "unitRef": "usd", "xsiNil": "false", "lang": "en-US", "decimals": "0", "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true }, "uniqueAnchor": { "contextRef": "c-40", "name": "us-gaap-ebp:EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForDividendIncomeOnInvestment", "unitRef": "usd", "xsiNil": "false", "lang": "en-US", "decimals": "0", "ancestors": [ "span", "td", "tr", "table", "div", "ix:continuation", "ix:continuation", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "unique": true } }, "R25": { "role": "http://www.mmc.com/role/InterestinMasterTrustNarrativeDetails", "longName": "0000025 - Disclosure - Interest in Master Trust - Narrative (Details)", "shortName": "Interest in Master Trust - Narrative (Details)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "25", "firstAnchor": { "contextRef": "c-2", "name": "mrsh:EBPInvestmentInterestRateMinimum", "unitRef": "number", "xsiNil": "false", "lang": "en-US", "decimals": "2", "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "c-2", "name": "mrsh:EBPInvestmentInterestRateMinimum", "unitRef": "number", "xsiNil": "false", "lang": "en-US", "decimals": "2", "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true, "unique": true } }, "R26": { "role": "http://www.mmc.com/role/FairValueMeasurementsDetails", "longName": "0000026 - Disclosure - Fair Value Measurements (Details)", "shortName": "Fair Value Measurements (Details)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "26", "firstAnchor": { "contextRef": "c-7", "name": "us-gaap-ebp:EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustFairValue", "unitRef": "usd", "xsiNil": "false", "lang": "en-US", "decimals": "0", "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap-ebp:EmployeeBenefitPlanInvestmentFairValueAndNavTableTextBlock", "ix:continuation", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true }, "uniqueAnchor": { "contextRef": "c-103", "name": "us-gaap-ebp:EmployeeBenefitPlanAsset", "unitRef": "usd", "xsiNil": "false", "lang": "en-US", "decimals": "0", "ancestors": [ "span", "td", "tr", "table", "div", "ix:continuation", "ix:continuation", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "unique": true } }, "R27": { "role": "http://www.mmc.com/role/NetAssetValueNAVPerShareDetails", "longName": "0000027 - Disclosure - Net Asset Value (NAV) Per Share (Details)", "shortName": "Net Asset Value (NAV) Per Share (Details)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "27", "firstAnchor": { "contextRef": "c-7", "name": "us-gaap-ebp:EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustFairValue", "unitRef": "usd", "xsiNil": "false", "lang": "en-US", "decimals": "0", "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap-ebp:EmployeeBenefitPlanInvestmentFairValueAndNavTableTextBlock", "ix:continuation", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true }, "uniqueAnchor": { "contextRef": "c-119", "name": "us-gaap-ebp:EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustFairValue", "unitRef": "usd", "xsiNil": "false", "lang": "en-US", "decimals": "0", "ancestors": [ "span", "td", "tr", "table", "div", "ix:continuation", "ix:continuation", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "unique": true } }, "R28": { "role": "http://www.mmc.com/role/ExemptPartyinInterestTransactionsDetails", "longName": "0000028 - Disclosure - Exempt Party in Interest Transactions (Details)", "shortName": "Exempt Party in Interest Transactions (Details)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "28", "firstAnchor": { "contextRef": "c-7", "name": "us-gaap-ebp:EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustFairValue", "unitRef": "usd", "xsiNil": "false", "lang": "en-US", "decimals": "0", "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap-ebp:EmployeeBenefitPlanInvestmentFairValueAndNavTableTextBlock", "ix:continuation", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true }, "uniqueAnchor": { "contextRef": "c-139", "name": "us-gaap-ebp:EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForInterestIncomeOnInvestment", "unitRef": "usd", "xsiNil": "false", "lang": "en-US", "decimals": "0", "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "unique": true } }, "R29": { "role": "http://www.mmc.com/role/NetTransferstoOtherPlanDetails", "longName": "0000029 - Disclosure - Net Transfers to Other Plan (Details)", "shortName": "Net Transfers to Other Plan (Details)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "29", "firstAnchor": { "contextRef": "c-2", "name": "us-gaap-ebp:EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitTransferToFromExternalPlan", "unitRef": "usd", "xsiNil": "false", "lang": "en-US", "decimals": "0", "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "c-2", "name": "us-gaap-ebp:EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitTransferToFromExternalPlan", "unitRef": "usd", "xsiNil": "false", "lang": "en-US", "decimals": "0", "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true, "unique": true } }, "R30": { "role": "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500ReconciliationofNetAssetsAvailableforBenefitDetails", "longName": "0000030 - Disclosure - Reconciliation of Financial Statements to Form 5500 - Reconciliation of Net Assets Available for Benefit (Details)", "shortName": "Reconciliation of Financial Statements to Form 5500 - Reconciliation of Net Assets Available for Benefit (Details)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "30", "firstAnchor": { "contextRef": "c-7", "name": "us-gaap-ebp:EmployeeBenefitPlanNetAssetAvailableForBenefit", "unitRef": "usd", "xsiNil": "false", "lang": "en-US", "decimals": "0", "ancestors": [ "span", "td", "tr", "table", "div", "ix:continuation", "us-gaap-ebp:EmployeeBenefitPlanReconciliationToForm5500TableTextBlock", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true }, "uniqueAnchor": { "contextRef": "c-7", "name": "us-gaap-ebp:EmployeeBenefitPlanForm5500CaptionNetAssetAvailableForBenefit", "unitRef": "usd", "xsiNil": "false", "lang": "en-US", "decimals": "0", "ancestors": [ "span", "td", "tr", "table", "div", "ix:continuation", "us-gaap-ebp:EmployeeBenefitPlanReconciliationToForm5500TableTextBlock", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "unique": true } }, "R31": { "role": "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500ReconciliationofBenefitsPaidandDecreaseinNetAssetsDetails", "longName": "0000031 - Disclosure - Reconciliation of Financial Statements to Form 5500 - Reconciliation of Benefits Paid and Decrease in Net Assets (Details)", "shortName": "Reconciliation of Financial Statements to Form 5500 - Reconciliation of Benefits Paid and Decrease in Net Assets (Details)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "31", "firstAnchor": { "contextRef": "c-2", "name": "us-gaap-ebp:EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecreaseForPaymentToParticipant", "unitRef": "usd", "xsiNil": "false", "lang": "en-US", "decimals": "0", "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true }, "uniqueAnchor": { "contextRef": "c-2", "name": "us-gaap-ebp:EmployeeBenefitPlanReconciliationToForm5500PaymentToParticipantIncreaseForAllocationToWithdrawingParticipantNotYetPaid", "unitRef": "usd", "xsiNil": "false", "lang": "en-US", "decimals": "0", "ancestors": [ "span", "td", "tr", "table", "div", "ix:continuation", "us-gaap-ebp:EmployeeBenefitPlanReconciliationToForm5500TableTextBlock", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "unique": true } }, "R32": { "role": "http://www.mmc.com/role/SCHEDULEHPARTIVLINE4iSCHEDULEOFASSETSHELDATENDOFYEARDetails", "longName": "0000032 - Disclosure - SCHEDULE H, PART IV, LINE 4i SCHEDULE OF ASSETS (HELD AT END OF YEAR) (Details)", "shortName": "SCHEDULE H, PART IV, LINE 4i SCHEDULE OF ASSETS (HELD AT END OF YEAR) (Details)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "32", "firstAnchor": { "contextRef": "c-2", "name": "dei:EntityTaxIdentificationNumber", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "span", "div", "us-gaap-ebp:EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTableTextBlock", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "c-2", "name": "dei:EntityTaxIdentificationNumber", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "span", "div", "us-gaap-ebp:EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTableTextBlock", "body", "html" ], "reportCount": 1, "baseRef": "mrsh-20260622.htm", "first": true, "unique": true } } }, "tag": { "dei_AmendmentFlag": { "xbrltype": "booleanItemType", "nsuri": "http://xbrl.sec.gov/dei/2026", "localname": "AmendmentFlag", "presentation": [ "http://www.mmc.com/role/Cover" ], "lang": { "en-us": { "role": { "terseLabel": "Amendment Flag", "label": "Amendment Flag", "documentation": "Boolean flag that is true when the XBRL content amends previously-filed or accepted submission." } } }, "auth_ref": [] }, "us-gaap_BalancedFundsMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2026", "localname": "BalancedFundsMember", "presentation": [ "http://www.mmc.com/role/FairValueMeasurementsDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Balanced funds", "label": "Balanced Funds [Member]" } } }, "auth_ref": [ "r194", "r198", "r201", "r205" ] }, "dei_CoverAbstract": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/dei/2026", "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/2026", "localname": "DefinedBenefitPlanCommonCollectiveTrustMember", "presentation": [ "http://www.mmc.com/role/FairValueMeasurementsDetails", "http://www.mmc.com/role/InterestinMasterTrustScheduleofMasterTrustNetAssetsDetails", "http://www.mmc.com/role/InterestinMasterTrustScheduleofNetInvestmentGainDetails" ], "lang": { "en-us": { "role": { "verboseLabel": "Common collective trusts at fair value", "label": "Common Collective Trust [Member]" } } }, "auth_ref": [ "r122", "r131", "r134", "r141" ] }, "dei_DocumentInformationLineItems": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/dei/2026", "localname": "DocumentInformationLineItems", "presentation": [ "http://www.mmc.com/role/Cover" ], "lang": { "en-us": { "role": { "terseLabel": "Document Information [Line Items]", "label": "Document Information [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": [] }, "dei_DocumentInformationTable": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/dei/2026", "localname": "DocumentInformationTable", "presentation": [ "http://www.mmc.com/role/Cover" ], "lang": { "en-us": { "role": { "terseLabel": "Document Information [Table]", "label": "Document Information [Table]", "documentation": "Container to support the formal attachment of each official or unofficial, public or private document as part of a submission package." } } }, "auth_ref": [] }, "dei_DocumentType": { "xbrltype": "submissionTypeItemType", "nsuri": "http://xbrl.sec.gov/dei/2026", "localname": "DocumentType", "presentation": [ "http://www.mmc.com/role/Cover" ], "lang": { "en-us": { "role": { "terseLabel": "Document Type", "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": [] }, "mrsh_EBP003Member": { "xbrltype": "domainItemType", "nsuri": "http://www.mmc.com/20260622", "localname": "EBP003Member", "presentation": [ "http://www.mmc.com/role/Cover", "http://www.mmc.com/role/DescriptionofthePlan", "http://www.mmc.com/role/DescriptionofthePlanDetails", "http://www.mmc.com/role/ExemptPartyinInterestTransactions", "http://www.mmc.com/role/ExemptPartyinInterestTransactionsDetails", "http://www.mmc.com/role/FairValueMeasurements", "http://www.mmc.com/role/FairValueMeasurementsDetails", "http://www.mmc.com/role/FairValueMeasurementsTables", "http://www.mmc.com/role/FederalIncomeTaxStatus", "http://www.mmc.com/role/InterestinMasterTrust", "http://www.mmc.com/role/InterestinMasterTrustNarrativeDetails", "http://www.mmc.com/role/InterestinMasterTrustScheduleofMasterTrustNetAssetsDetails", "http://www.mmc.com/role/InterestinMasterTrustScheduleofNetInvestmentGainDetails", "http://www.mmc.com/role/InterestinMasterTrustTables", "http://www.mmc.com/role/NetAssetValueNAVPerShare", "http://www.mmc.com/role/NetAssetValueNAVPerShareDetails", "http://www.mmc.com/role/NetAssetValueNAVPerShareTables", "http://www.mmc.com/role/NetTransferstoOtherPlan", "http://www.mmc.com/role/NetTransferstoOtherPlanDetails", "http://www.mmc.com/role/PlanTermination", "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500", "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500ReconciliationofBenefitsPaidandDecreaseinNetAssetsDetails", "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500ReconciliationofNetAssetsAvailableforBenefitDetails", "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500Tables", "http://www.mmc.com/role/SCHEDULEHPARTIVLINE4iSCHEDULEOFASSETSHELDATENDOFYEAR", "http://www.mmc.com/role/SCHEDULEHPARTIVLINE4iSCHEDULEOFASSETSHELDATENDOFYEARDetails", "http://www.mmc.com/role/STATEMENTOFCHANGESINNETASSETSAVAILABLEFORBENEFITS", "http://www.mmc.com/role/STATEMENTSOFNETASSETSAVAILABLEFORBENEFITS", "http://www.mmc.com/role/SubsequentEvents", "http://www.mmc.com/role/SummaryofSignificantAccountingPolicies", "http://www.mmc.com/role/SummaryofSignificantAccountingPoliciesDetails", "http://www.mmc.com/role/SummaryofSignificantAccountingPoliciesPolicies" ], "lang": { "en-us": { "role": { "terseLabel": "EBP 003", "label": "EBP 003 [Member]", "documentation": "EBP 003" } } }, "auth_ref": [] }, "mrsh_EBPAdministrativeCostParticipantPaidMonthlyRecordkeepingFee": { "xbrltype": "monetaryItemType", "nsuri": "http://www.mmc.com/20260622", "localname": "EBPAdministrativeCostParticipantPaidMonthlyRecordkeepingFee", "crdr": "credit", "presentation": [ "http://www.mmc.com/role/DescriptionofthePlanDetails", "http://www.mmc.com/role/SummaryofSignificantAccountingPoliciesDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Participant paid monthly recordkeeping fee", "label": "EBP, Administrative Cost, Participant Paid Monthly Recordkeeping Fee", "documentation": "EBP, Administrative Cost, Participant Paid Monthly Recordkeeping Fee" } } }, "auth_ref": [] }, "mrsh_EBPAdministrativeCostParticipantPaidNewLoanRequestFee": { "xbrltype": "monetaryItemType", "nsuri": "http://www.mmc.com/20260622", "localname": "EBPAdministrativeCostParticipantPaidNewLoanRequestFee", "crdr": "credit", "presentation": [ "http://www.mmc.com/role/DescriptionofthePlanDetails", "http://www.mmc.com/role/SummaryofSignificantAccountingPoliciesDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Participant paid new loan request fee", "label": "EBP, Administrative Cost, Participant Paid New Loan Request Fee", "documentation": "EBP, Administrative Cost, Participant Paid New Loan Request Fee" } } }, "auth_ref": [] }, "mrsh_EBPAdministrativeCostParticipantPaidWithdrawalAndDistributionTransactionFee": { "xbrltype": "monetaryItemType", "nsuri": "http://www.mmc.com/20260622", "localname": "EBPAdministrativeCostParticipantPaidWithdrawalAndDistributionTransactionFee", "crdr": "credit", "presentation": [ "http://www.mmc.com/role/DescriptionofthePlanDetails", "http://www.mmc.com/role/SummaryofSignificantAccountingPoliciesDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Participant paid transaction fees for certain in-service withdrawals and distribution requests", "label": "EBP, Administrative Cost, Participant Paid Withdrawal And Distribution Transaction Fee", "documentation": "EBP, Administrative Cost, Participant Paid Withdrawal And Distribution Transaction Fee" } } }, "auth_ref": [] }, "mrsh_EBPAdministrativeCostParticipantPaidYearlyRecordkeepingFee": { "xbrltype": "monetaryItemType", "nsuri": "http://www.mmc.com/20260622", "localname": "EBPAdministrativeCostParticipantPaidYearlyRecordkeepingFee", "crdr": "credit", "presentation": [ "http://www.mmc.com/role/DescriptionofthePlanDetails", "http://www.mmc.com/role/SummaryofSignificantAccountingPoliciesDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Participant paid yearly recordkeeping fee", "label": "EBP, Administrative Cost, Participant Paid Yearly Recordkeeping Fee", "documentation": "EBP, Administrative Cost, Participant Paid Yearly Recordkeeping Fee" } } }, "auth_ref": [] }, "mrsh_EBPCashAndCashEquivalentsPolicyTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://www.mmc.com/20260622", "localname": "EBPCashAndCashEquivalentsPolicyTextBlock", "presentation": [ "http://www.mmc.com/role/SummaryofSignificantAccountingPoliciesPolicies" ], "lang": { "en-us": { "role": { "terseLabel": "Cash and Cash Equivalents", "label": "EBP, Cash And Cash Equivalents [Policy Text Block]", "documentation": "EBP, Cash And Cash Equivalents" } } }, "auth_ref": [] }, "mrsh_EBPChangeInNetAssetAvailableForBenefitTransferFromPlan": { "xbrltype": "monetaryItemType", "nsuri": "http://www.mmc.com/20260622", "localname": "EBPChangeInNetAssetAvailableForBenefitTransferFromPlan", "crdr": "credit", "calculation": { "http://www.mmc.com/role/NetTransferstoOtherPlanDetails": { "parentTag": "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitTransferToFromExternalPlan", "weight": -1.0, "order": 2.0 } }, "presentation": [ "http://www.mmc.com/role/NetTransferstoOtherPlanDetails", "http://www.mmc.com/role/STATEMENTOFCHANGESINNETASSETSAVAILABLEFORBENEFITS" ], "lang": { "en-us": { "role": { "negatedTerseLabel": "Transfers out to other plan (Note 7)", "terseLabel": "Transfers out of the plan", "label": "EBP, Change In Net Asset Available For Benefit, Transfer From Plan", "documentation": "EBP, Change In Net Asset Available For Benefit, Transfer From Plan" } } }, "auth_ref": [] }, "mrsh_EBPChangeInNetAssetAvailableForBenefitTransferToPlan": { "xbrltype": "monetaryItemType", "nsuri": "http://www.mmc.com/20260622", "localname": "EBPChangeInNetAssetAvailableForBenefitTransferToPlan", "crdr": "debit", "calculation": { "http://www.mmc.com/role/NetTransferstoOtherPlanDetails": { "parentTag": "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitTransferToFromExternalPlan", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://www.mmc.com/role/NetTransferstoOtherPlanDetails", "http://www.mmc.com/role/STATEMENTOFCHANGESINNETASSETSAVAILABLEFORBENEFITS" ], "lang": { "en-us": { "role": { "terseLabel": "Transfers in from other plan (Note 7)", "verboseLabel": "Transfers into the plan", "label": "EBP, Change In Net Asset Available For Benefit, Transfer To Plan", "documentation": "EBP, Change In Net Asset Available For Benefit, Transfer To Plan" } } }, "auth_ref": [] }, "mrsh_EBPEmployerContributionParticipantCompensationAfterFourYearsServicePercentage": { "xbrltype": "percentItemType", "nsuri": "http://www.mmc.com/20260622", "localname": "EBPEmployerContributionParticipantCompensationAfterFourYearsServicePercentage", "presentation": [ "http://www.mmc.com/role/DescriptionofthePlanDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Matching contribution if vested after 4 years of service", "label": "EBP, Employer Contribution, Participant Compensation After Four Years Service, Percentage", "documentation": "EBP, Employer Contribution, Participant Compensation After Four Years Service, Percentage" } } }, "auth_ref": [] }, "mrsh_EBPEmployerContributionParticipantCompensationMatchedAfterFiveYearsOfServicePercentage": { "xbrltype": "percentItemType", "nsuri": "http://www.mmc.com/20260622", "localname": "EBPEmployerContributionParticipantCompensationMatchedAfterFiveYearsOfServicePercentage", "presentation": [ "http://www.mmc.com/role/DescriptionofthePlanDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Matching contribution if vested more than 5 years of service", "label": "EBP, Employer Contribution, Participant Compensation Matched After Five Years Of Service, Percentage", "documentation": "EBP, Employer Contribution, Participant Compensation Matched After Five Years Of Service, Percentage" } } }, "auth_ref": [] }, "mrsh_EBPEmployerContributionParticipantCompensationMatchedFourToFiveYearsServicePercentage": { "xbrltype": "percentItemType", "nsuri": "http://www.mmc.com/20260622", "localname": "EBPEmployerContributionParticipantCompensationMatchedFourToFiveYearsServicePercentage", "presentation": [ "http://www.mmc.com/role/DescriptionofthePlanDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Matching contribution if vested 4 to 5 years of service", "label": "EBP, Employer Contribution, Participant Compensation Matched Four To Five Years Service, Percentage", "documentation": "EBP, Employer Contribution, Participant Compensation Matched Four To Five Years Service, Percentage" } } }, "auth_ref": [] }, "mrsh_EBPEmployerContributionParticipantCompensationMatchedLessThanThreeYearsServicePercentage": { "xbrltype": "percentItemType", "nsuri": "http://www.mmc.com/20260622", "localname": "EBPEmployerContributionParticipantCompensationMatchedLessThanThreeYearsServicePercentage", "presentation": [ "http://www.mmc.com/role/DescriptionofthePlanDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Matching contribution if vested less than 3 years of service", "label": "EBP, Employer Contribution, Participant Compensation Matched Less Than Three Years Service, Percentage", "documentation": "EBP, Employer Contribution, Participant Compensation Matched Less Than Three Years Service, Percentage" } } }, "auth_ref": [] }, "mrsh_EBPEmployerContributionParticipantCompensationMatchedLessThanTwoYearsServicePercentage": { "xbrltype": "percentItemType", "nsuri": "http://www.mmc.com/20260622", "localname": "EBPEmployerContributionParticipantCompensationMatchedLessThanTwoYearsServicePercentage", "presentation": [ "http://www.mmc.com/role/DescriptionofthePlanDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Matching contribution if vested less than 2 years of service", "label": "EBP, Employer Contribution, Participant Compensation Matched Less Than Two Years Service, Percentage", "documentation": "EBP, Employer Contribution, Participant Compensation Matched Less Than Two Years Service, Percentage" } } }, "auth_ref": [] }, "mrsh_EBPEmployerContributionParticipantCompensationMatchedThreeToFourYearsServicePercentage": { "xbrltype": "percentItemType", "nsuri": "http://www.mmc.com/20260622", "localname": "EBPEmployerContributionParticipantCompensationMatchedThreeToFourYearsServicePercentage", "presentation": [ "http://www.mmc.com/role/DescriptionofthePlanDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Matching contribution if vested 3 to 4 years of service", "label": "EBP, Employer Contribution, Participant Compensation Matched Three To Four Years Service, Percentage", "documentation": "EBP, Employer Contribution, Participant Compensation Matched Three To Four Years Service, Percentage" } } }, "auth_ref": [] }, "mrsh_EBPEmployerContributionParticipantCompensationMatchedTwoToThreeYearsServicePercentage": { "xbrltype": "percentItemType", "nsuri": "http://www.mmc.com/20260622", "localname": "EBPEmployerContributionParticipantCompensationMatchedTwoToThreeYearsServicePercentage", "presentation": [ "http://www.mmc.com/role/DescriptionofthePlanDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Matching contribution if vested 2 to 3 years of service", "label": "EBP, Employer Contribution, Participant Compensation Matched Two To Three Years Service, Percentage", "documentation": "EBP, Employer Contribution, Participant Compensation Matched Two To Three Years Service, Percentage" } } }, "auth_ref": [] }, "mrsh_EBPEmployerContributionParticipantRequisiteServicePeriod": { "xbrltype": "integerItemType", "nsuri": "http://www.mmc.com/20260622", "localname": "EBPEmployerContributionParticipantRequisiteServicePeriod", "presentation": [ "http://www.mmc.com/role/DescriptionofthePlanDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Employment service period", "label": "EBP, Employer Contribution, Participant Requisite Service Period", "documentation": "EBP, Employer Contribution, Participant Requisite Service Period" } } }, "auth_ref": [] }, "mrsh_EBPInvestmentInterestRateMinimum": { "xbrltype": "pureItemType", "nsuri": "http://www.mmc.com/20260622", "localname": "EBPInvestmentInterestRateMinimum", "presentation": [ "http://www.mmc.com/role/InterestinMasterTrustNarrativeDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Minimum interest crediting rate", "label": "EBP, Investment, Interest Rate Minimum", "documentation": "EBP, Investment, Interest Rate Minimum" } } }, "auth_ref": [] }, "mrsh_EBPMMCPlanMember": { "xbrltype": "domainItemType", "nsuri": "http://www.mmc.com/20260622", "localname": "EBPMMCPlanMember", "presentation": [ "http://www.mmc.com/role/InterestinMasterTrustScheduleofNetInvestmentGainDetails" ], "lang": { "en-us": { "role": { "terseLabel": "MMA Plan", "label": "EBP, MMC Plan [Member]", "documentation": "EBP, MMC Plan" } } }, "auth_ref": [] }, "mrsh_EBPMarshMcLennanAgency401kSavingsInvestmentPlanMember": { "xbrltype": "domainItemType", "nsuri": "http://www.mmc.com/20260622", "localname": "EBPMarshMcLennanAgency401kSavingsInvestmentPlanMember", "presentation": [ "http://www.mmc.com/role/InterestinMasterTrustScheduleofNetInvestmentGainDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Marsh & McLennan Companies 401(k) Savings & Investment Plan", "label": "EBP, Marsh & McLennan Agency 401k Savings & Investment Plan [Member]", "documentation": "EBP, Marsh & McLennan Agency 401k Savings & Investment Plan" } } }, "auth_ref": [] }, "mrsh_EBPMinimumPlanEligibilityAge": { "xbrltype": "durationItemType", "nsuri": "http://www.mmc.com/20260622", "localname": "EBPMinimumPlanEligibilityAge", "presentation": [ "http://www.mmc.com/role/DescriptionofthePlanDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Minimum eligibility age of the plan", "label": "EBP, Minimum Plan Eligibility Age", "documentation": "EBP, Minimum Plan Eligibility Age" } } }, "auth_ref": [] }, "mrsh_EBPNetTransfersToOtherPlanAbstract": { "xbrltype": "stringItemType", "nsuri": "http://www.mmc.com/20260622", "localname": "EBPNetTransfersToOtherPlanAbstract", "lang": { "en-us": { "role": { "label": "EBP, Net Transfers To Other Plan [Abstract]", "documentation": "EBP, Net Transfers To Other Plan [Abstract]" } } }, "auth_ref": [] }, "mrsh_EBPNetTransfersToOtherPlanLineItems": { "xbrltype": "stringItemType", "nsuri": "http://www.mmc.com/20260622", "localname": "EBPNetTransfersToOtherPlanLineItems", "presentation": [ "http://www.mmc.com/role/NetTransferstoOtherPlanDetails" ], "lang": { "en-us": { "role": { "terseLabel": "EBP, Net Transfers To Other Plan [Line Items]", "label": "EBP, Net Transfers To Other Plan [Line Items]", "documentation": "EBP, Net Transfers To Other Plan [Line Items]" } } }, "auth_ref": [] }, "mrsh_EBPNetTransfersToOtherPlanTable": { "xbrltype": "stringItemType", "nsuri": "http://www.mmc.com/20260622", "localname": "EBPNetTransfersToOtherPlanTable", "presentation": [ "http://www.mmc.com/role/NetTransferstoOtherPlanDetails" ], "lang": { "en-us": { "role": { "terseLabel": "EBP, Net Transfers To Other Plan [Table]", "label": "EBP, Net Transfers To Other Plan [Table]", "documentation": "EBP, Net Transfers To Other Plan [Table]" } } }, "auth_ref": [] }, "mrsh_EBPNetTransfersToOtherPlanTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://www.mmc.com/20260622", "localname": "EBPNetTransfersToOtherPlanTextBlock", "presentation": [ "http://www.mmc.com/role/NetTransferstoOtherPlan" ], "lang": { "en-us": { "role": { "terseLabel": "Net Transfers to Other Plan", "label": "EBP, Net Transfers To Other Plan [Text Block]", "documentation": "EBP, Net Transfers To Other Plan" } } }, "auth_ref": [] }, "mrsh_EBPNoteReceivableFromParticipantAccountBorrowingTerm": { "xbrltype": "durationItemType", "nsuri": "http://www.mmc.com/20260622", "localname": "EBPNoteReceivableFromParticipantAccountBorrowingTerm", "presentation": [ "http://www.mmc.com/role/DescriptionofthePlanDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Loan borrowing term", "label": "EBP, Note Receivable From Participant, Account, Borrowing Term", "documentation": "EBP, Note Receivable From Participant, Account, Borrowing Term" } } }, "auth_ref": [] }, "mrsh_EBPNumberOfCommonCollectiveTrusts": { "xbrltype": "integerItemType", "nsuri": "http://www.mmc.com/20260622", "localname": "EBPNumberOfCommonCollectiveTrusts", "presentation": [ "http://www.mmc.com/role/SummaryofSignificantAccountingPoliciesDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Number of common collective trusts", "label": "EBP, Number of Common Collective Trusts", "documentation": "EBP, Number of Common Collective Trusts" } } }, "auth_ref": [] }, "mrsh_EBPParticipantContributionAfterTaxMaximumAnnualCompensationToTotalCompensationPercentage": { "xbrltype": "percentItemType", "nsuri": "http://www.mmc.com/20260622", "localname": "EBPParticipantContributionAfterTaxMaximumAnnualCompensationToTotalCompensationPercentage", "presentation": [ "http://www.mmc.com/role/DescriptionofthePlanDetails" ], "lang": { "en-us": { "role": { "terseLabel": "After tax participant contribution limit, as % of eligible compensation", "label": "EBP, Participant Contribution, After Tax, Maximum Annual Compensation to Total Compensation, Percentage", "documentation": "EBP, Participant Contribution, After Tax, Maximum Annual Compensation to Total Compensation, Percentage" } } }, "auth_ref": [] }, "mrsh_EBPParticipantContributionsMinimumVestedBalanceToRequestDistributionUponTerminationOfService": { "xbrltype": "monetaryItemType", "nsuri": "http://www.mmc.com/20260622", "localname": "EBPParticipantContributionsMinimumVestedBalanceToRequestDistributionUponTerminationOfService", "crdr": "debit", "presentation": [ "http://www.mmc.com/role/DescriptionofthePlanDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Minimum vested balance to request distribution upon termination of service", "label": "EBP, Participant Contributions, Minimum Vested Balance To Request Distribution Upon Termination Of Service", "documentation": "EBP, Participant Contributions, Minimum Vested Balance To Request Distribution Upon Termination Of Service" } } }, "auth_ref": [] }, "mrsh_EBPParticipantLoanBasisSpreadOnVariableRate": { "xbrltype": "percentItemType", "nsuri": "http://www.mmc.com/20260622", "localname": "EBPParticipantLoanBasisSpreadOnVariableRate", "presentation": [ "http://www.mmc.com/role/DescriptionofthePlanDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Basis spread on variable rate of participant loan", "label": "EBP, Participant Loan, Basis Spread On Variable Rate", "documentation": "EBP, Participant Loan, Basis Spread On Variable Rate" } } }, "auth_ref": [] }, "mrsh_EBPPlanNameAxis": { "xbrltype": "stringItemType", "nsuri": "http://www.mmc.com/20260622", "localname": "EBPPlanNameAxis", "presentation": [ "http://www.mmc.com/role/InterestinMasterTrustScheduleofNetInvestmentGainDetails" ], "lang": { "en-us": { "role": { "terseLabel": "EBP, Plan Name [Axis]", "label": "EBP, Plan Name [Axis]", "documentation": "EBP, Plan Name" } } }, "auth_ref": [] }, "mrsh_EBPPlanNameDomain": { "xbrltype": "domainItemType", "nsuri": "http://www.mmc.com/20260622", "localname": "EBPPlanNameDomain", "presentation": [ "http://www.mmc.com/role/InterestinMasterTrustScheduleofNetInvestmentGainDetails" ], "lang": { "en-us": { "role": { "terseLabel": "EBP, Plan Name [Domain]", "label": "EBP, Plan Name [Domain]", "documentation": "EBP, Plan Name [Domain]" } } }, "auth_ref": [] }, "mrsh_EBPPlanRetirementAge": { "xbrltype": "integerItemType", "nsuri": "http://www.mmc.com/20260622", "localname": "EBPPlanRetirementAge", "presentation": [ "http://www.mmc.com/role/DescriptionofthePlanDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Plan retirement age", "label": "EBP, Plan Retirement Age", "documentation": "EBP, Plan Retirement Age" } } }, "auth_ref": [] }, "mrsh_EBPReconciliationToForm5500ChangeInNetAssetAvailableForBenefitDecreaseFromAllocationToWithdrawingParticipant": { "xbrltype": "monetaryItemType", "nsuri": "http://www.mmc.com/20260622", "localname": "EBPReconciliationToForm5500ChangeInNetAssetAvailableForBenefitDecreaseFromAllocationToWithdrawingParticipant", "crdr": "credit", "calculation": { "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500ReconciliationofBenefitsPaidandDecreaseinNetAssetsDetails": { "parentTag": "us-gaap-ebp_EmployeeBenefitPlanForm5500CaptionNetIncomeLoss", "weight": -1.0, "order": 2.0 } }, "presentation": [ "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500ReconciliationofBenefitsPaidandDecreaseinNetAssetsDetails" ], "lang": { "en-us": { "role": { "negatedTerseLabel": "Less: Amounts allocated to withdrawing participants", "label": "EBP, Reconciliation to Form 5500, Change in Net Asset Available for Benefit, Decrease from Allocation To Withdrawing Participant", "documentation": "EBP, Reconciliation to Form 5500, Change in Net Asset Available for Benefit, Decrease from Allocation To Withdrawing Participant" } } }, "auth_ref": [] }, "mrsh_EBPVestingServicePeriod": { "xbrltype": "durationItemType", "nsuri": "http://www.mmc.com/20260622", "localname": "EBPVestingServicePeriod", "presentation": [ "http://www.mmc.com/role/DescriptionofthePlanDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Vesting service period", "label": "EBP, Vesting Service Period", "documentation": "EBP, Vesting Service Period" } } }, "auth_ref": [] }, "us-gaap-ebp_EbpFairValueInvestmentNavUnfundedCommitment": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EbpFairValueInvestmentNavUnfundedCommitment", "crdr": "credit", "presentation": [ "http://www.mmc.com/role/NetAssetValueNAVPerShareDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Unfunded Commitments", "label": "EBP, Fair Value, Investment, NAV, Unfunded Commitment", "documentation": "Amount of unfunded commitment for investment held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)), that is fair value measured at net asset value (NAV) per share as practical expedient." } } }, "auth_ref": [ "r37", "r104" ] }, "us-gaap-ebp_EbpRiskAndUncertaintyPolicyTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EbpRiskAndUncertaintyPolicyTextBlock", "presentation": [ "http://www.mmc.com/role/SummaryofSignificantAccountingPoliciesPolicies" ], "lang": { "en-us": { "role": { "terseLabel": "Risks and Uncertainties", "label": "EBP, Risk and Uncertainty [Policy Text Block]", "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": [ "r43", "r44" ] }, "us-gaap-ebp_EbpSubsequentEventAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EbpSubsequentEventAbstract", "lang": { "en-us": { "role": { "label": "EBP, Subsequent Event [Abstract]" } } }, "auth_ref": [] }, "us-gaap-ebp_EbpSubsequentEventLineItems": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EbpSubsequentEventLineItems", "presentation": [ "http://www.mmc.com/role/SubsequentEvents" ], "lang": { "en-us": { "role": { "terseLabel": "EBP, Subsequent Event [Line Items]", "label": "EBP, Subsequent Event [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": [ "r50", "r148" ] }, "us-gaap-ebp_EbpSubsequentEventTable": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EbpSubsequentEventTable", "presentation": [ "http://www.mmc.com/role/SubsequentEvents" ], "lang": { "en-us": { "role": { "terseLabel": "EBP, Subsequent Event [Table]", "label": "EBP, Subsequent Event [Table]", "documentation": "Disclosure of information about subsequent event for employee stock purchase, saving, or similar plan (employee benefit plan (EBP))." } } }, "auth_ref": [ "r50", "r148" ] }, "us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "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/2026", "localname": "EmployeeBenefitPlanAccountingPolicyLineItems", "presentation": [ "http://www.mmc.com/role/SummaryofSignificantAccountingPolicies", "http://www.mmc.com/role/SummaryofSignificantAccountingPoliciesDetails", "http://www.mmc.com/role/SummaryofSignificantAccountingPoliciesPolicies" ], "lang": { "en-us": { "role": { "terseLabel": "EBP, Accounting Policy [Line Items]", "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": [ "r187", "r197" ] }, "us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyTable": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanAccountingPolicyTable", "presentation": [ "http://www.mmc.com/role/SummaryofSignificantAccountingPolicies", "http://www.mmc.com/role/SummaryofSignificantAccountingPoliciesDetails", "http://www.mmc.com/role/SummaryofSignificantAccountingPoliciesPolicies" ], "lang": { "en-us": { "role": { "terseLabel": "EBP, Accounting Policy [Table]", "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": [ "r187", "r197" ] }, "us-gaap-ebp_EmployeeBenefitPlanAccruedExpense": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanAccruedExpense", "crdr": "credit", "calculation": { "http://www.mmc.com/role/InterestinMasterTrustScheduleofMasterTrustNetAssetsDetails": { "parentTag": "us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefit", "weight": -1.0, "order": 3.0 } }, "presentation": [ "http://www.mmc.com/role/InterestinMasterTrustScheduleofMasterTrustNetAssetsDetails" ], "lang": { "en-us": { "role": { "negatedTerseLabel": "Liability for expenses incurred", "label": "EBP, Accrued Expense", "documentation": "Amount of liability for expense incurred but not yet paid by employee stock purchase, saving, or similar plan (employee benefit plan (EBP))." } } }, "auth_ref": [ "r117", "r143", "r144", "r145", "r181", "r195" ] }, "us-gaap-ebp_EmployeeBenefitPlanAsset": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanAsset", "crdr": "debit", "presentation": [ "http://www.mmc.com/role/FairValueMeasurementsDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Assets Held in Commingled Funds by Master Trust", "label": "EBP, Asset", "documentation": "Amount of asset held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP))." } } }, "auth_ref": [ "r53", "r61", "r96", "r144", "r208" ] }, "us-gaap-ebp_EmployeeBenefitPlanAssetAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanAssetAbstract", "presentation": [ "http://www.mmc.com/role/STATEMENTSOFNETASSETSAVAILABLEFORBENEFITS" ], "lang": { "en-us": { "role": { "terseLabel": "Assets:", "label": "EBP, Asset [Abstract]" } } }, "auth_ref": [] }, "us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestment": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanAssetHeldForInvestment", "crdr": "debit", "calculation": { "http://www.mmc.com/role/SCHEDULEHPARTIVLINE4iSCHEDULEOFASSETSHELDATENDOFYEARDetails": { "parentTag": null, "weight": null, "order": null, "root": true } }, "presentation": [ "http://www.mmc.com/role/SCHEDULEHPARTIVLINE4iSCHEDULEOFASSETSHELDATENDOFYEARDetails" ], "lang": { "en-us": { "role": { "totalLabel": "Assets held for investment", "label": "EBP, Asset Held for Investment", "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": [ "r153", "r194" ] }, "us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestmentInvestmentExcludingPlanInterestInMasterTrustCurrentValue": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanAssetHeldForInvestmentInvestmentExcludingPlanInterestInMasterTrustCurrentValue", "crdr": "debit", "calculation": { "http://www.mmc.com/role/SCHEDULEHPARTIVLINE4iSCHEDULEOFASSETSHELDATENDOFYEARDetails": { "parentTag": "us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestment", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://www.mmc.com/role/SCHEDULEHPARTIVLINE4iSCHEDULEOFASSETSHELDATENDOFYEARDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Current Value", "label": "EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value", "documentation": "Current value of investment, excluding plan interest in master trust, 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, derivative, investment measured at net asset value per share as practical expedient, and insurance contract." } } }, "auth_ref": [ "r95", "r158" ] }, "us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestmentParticipantLoanAfterDeemedDistribution": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanAssetHeldForInvestmentParticipantLoanAfterDeemedDistribution", "crdr": "debit", "calculation": { "http://www.mmc.com/role/SCHEDULEHPARTIVLINE4iSCHEDULEOFASSETSHELDATENDOFYEARDetails": { "parentTag": "us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestment", "weight": 1.0, "order": 2.0 } }, "presentation": [ "http://www.mmc.com/role/SCHEDULEHPARTIVLINE4iSCHEDULEOFASSETSHELDATENDOFYEARDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Participant loan, current value", "label": "EBP, Asset Held for Investment, Participant Loan, after Deemed Distribution", "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": [ "r95", "r158" ] }, "us-gaap-ebp_EmployeeBenefitPlanBasisOfAccountingPolicyTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanBasisOfAccountingPolicyTextBlock", "presentation": [ "http://www.mmc.com/role/SummaryofSignificantAccountingPoliciesPolicies" ], "lang": { "en-us": { "role": { "terseLabel": "Basis of Accounting", "label": "EBP, Basis of Accounting [Policy Text Block]", "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": [ "r187", "r197" ] }, "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecrease": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecrease", "crdr": "credit", "calculation": { "http://www.mmc.com/role/STATEMENTOFCHANGESINNETASSETSAVAILABLEFORBENEFITS": { "parentTag": "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecrease", "weight": -1.0, "order": 4.0 } }, "presentation": [ "http://www.mmc.com/role/STATEMENTOFCHANGESINNETASSETSAVAILABLEFORBENEFITS" ], "lang": { "en-us": { "role": { "negatedTotalLabel": "Total deductions", "label": "EBP, Change in Net Asset Available for Benefit, Decrease", "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": [ "r144", "r196" ] }, "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecreaseAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecreaseAbstract", "presentation": [ "http://www.mmc.com/role/STATEMENTOFCHANGESINNETASSETSAVAILABLEFORBENEFITS" ], "lang": { "en-us": { "role": { "terseLabel": "Deductions:", "label": "EBP, Change in Net Asset Available for Benefit, Decrease [Abstract]" } } }, "auth_ref": [] }, "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecreaseForAdministrativeExpense": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecreaseForAdministrativeExpense", "crdr": "credit", "calculation": { "http://www.mmc.com/role/STATEMENTOFCHANGESINNETASSETSAVAILABLEFORBENEFITS": { "parentTag": "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecrease", "weight": 1.0, "order": 2.0 } }, "presentation": [ "http://www.mmc.com/role/STATEMENTOFCHANGESINNETASSETSAVAILABLEFORBENEFITS" ], "lang": { "en-us": { "role": { "negatedTerseLabel": "Administrative fees", "label": "EBP, Change in Net Asset Available for Benefit, Decrease from Administrative Expense", "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": [ "r58", "r97", "r144" ] }, "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecreaseForInvestmentExpense": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecreaseForInvestmentExpense", "crdr": "credit", "calculation": { "http://www.mmc.com/role/InterestinMasterTrustScheduleofNetInvestmentGainDetails": { "parentTag": "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForIncomeLossOnInvestment", "weight": -1.0, "order": 4.0 } }, "presentation": [ "http://www.mmc.com/role/InterestinMasterTrustScheduleofNetInvestmentGainDetails" ], "lang": { "en-us": { "role": { "negatedTerseLabel": "Expenses", "label": "EBP, Change in Net Asset Available for Benefit, Decrease from Investment Expense", "documentation": "Amount of decrease in net asset available for benefit from expense for generating income on investment held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP))." } } }, "auth_ref": [ "r85" ] }, "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecreaseForPaymentToParticipant": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecreaseForPaymentToParticipant", "crdr": "credit", "calculation": { "http://www.mmc.com/role/STATEMENTOFCHANGESINNETASSETSAVAILABLEFORBENEFITS": { "parentTag": "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecrease", "weight": 1.0, "order": 1.0 }, "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500ReconciliationofBenefitsPaidandDecreaseinNetAssetsDetails": { "parentTag": "us-gaap-ebp_EmployeeBenefitPlanForm5500CaptionPaymentToParticipant", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500ReconciliationofBenefitsPaidandDecreaseinNetAssetsDetails", "http://www.mmc.com/role/STATEMENTOFCHANGESINNETASSETSAVAILABLEFORBENEFITS" ], "lang": { "en-us": { "role": { "negatedTerseLabel": "Benefits paid to and withdrawals by participants", "terseLabel": "Benefits paid to and withdrawals by participants per the financial statements", "label": "EBP, Change in Net Asset Available for Benefit, Decrease from Payment to Participant", "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": [ "r57", "r91", "r97", "r106", "r144" ] }, "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecrease": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecrease", "crdr": "debit", "calculation": { "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500ReconciliationofBenefitsPaidandDecreaseinNetAssetsDetails": { "parentTag": "us-gaap-ebp_EmployeeBenefitPlanForm5500CaptionNetIncomeLoss", "weight": 1.0, "order": 1.0 }, "http://www.mmc.com/role/STATEMENTOFCHANGESINNETASSETSAVAILABLEFORBENEFITS": { "parentTag": null, "weight": null, "order": null, "root": true } }, "presentation": [ "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500ReconciliationofBenefitsPaidandDecreaseinNetAssetsDetails", "http://www.mmc.com/role/STATEMENTOFCHANGESINNETASSETSAVAILABLEFORBENEFITS" ], "lang": { "en-us": { "role": { "totalLabel": "Increase in net assets before plan transfers", "terseLabel": "Increase in net assets before plan transfers per the financial statements", "label": "EBP, Change in Net Asset Available for Benefit, Increase (Decrease)", "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", "r97", "r144", "r200" ] }, "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForChangeInPlanInterestInMasterTrust": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForChangeInPlanInterestInMasterTrust", "crdr": "debit", "calculation": { "http://www.mmc.com/role/STATEMENTOFCHANGESINNETASSETSAVAILABLEFORBENEFITS": { "parentTag": "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForIncomeLossOnInvestment", "weight": 1.0, "order": 2.0 } }, "presentation": [ "http://www.mmc.com/role/STATEMENTOFCHANGESINNETASSETSAVAILABLEFORBENEFITS" ], "lang": { "en-us": { "role": { "verboseLabel": "Plan interest in commingled investments held by master trust", "label": "EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Change in Plan Interest in Master Trust", "documentation": "Amount of increase (decrease) in net asset available for benefit from increase (decrease) in plan interest in master trust held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP))." } } }, "auth_ref": [ "r52" ] }, "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForGainLossOnInvestment": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForGainLossOnInvestment", "crdr": "debit", "calculation": { "http://www.mmc.com/role/STATEMENTOFCHANGESINNETASSETSAVAILABLEFORBENEFITS": { "parentTag": "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForIncomeLossOnInvestment", "weight": 1.0, "order": 1.0 }, "http://www.mmc.com/role/InterestinMasterTrustScheduleofNetInvestmentGainDetails": { "parentTag": "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForIncomeLossOnInvestment", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://www.mmc.com/role/InterestinMasterTrustScheduleofNetInvestmentGainDetails", "http://www.mmc.com/role/STATEMENTOFCHANGESINNETASSETSAVAILABLEFORBENEFITS" ], "lang": { "en-us": { "role": { "terseLabel": "Net appreciation in fair value of plan identified investments held by master trust", "label": "EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Gain (Loss) on Investment", "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", "r55", "r110", "r144" ] }, "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForIncomeLossOnInvestment": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForIncomeLossOnInvestment", "crdr": "debit", "calculation": { "http://www.mmc.com/role/STATEMENTOFCHANGESINNETASSETSAVAILABLEFORBENEFITS": { "parentTag": "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecrease", "weight": 1.0, "order": 1.0 }, "http://www.mmc.com/role/InterestinMasterTrustScheduleofNetInvestmentGainDetails": { "parentTag": null, "weight": null, "order": null, "root": true } }, "presentation": [ "http://www.mmc.com/role/InterestinMasterTrustScheduleofNetInvestmentGainDetails", "http://www.mmc.com/role/STATEMENTOFCHANGESINNETASSETSAVAILABLEFORBENEFITS" ], "lang": { "en-us": { "role": { "totalLabel": "Net investment income", "label": "EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment", "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": [ "r144" ] }, "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForIncomeLossOnInvestmentAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForIncomeLossOnInvestmentAbstract", "presentation": [ "http://www.mmc.com/role/InterestinMasterTrustScheduleofNetInvestmentGainDetails", "http://www.mmc.com/role/STATEMENTOFCHANGESINNETASSETSAVAILABLEFORBENEFITS" ], "lang": { "en-us": { "role": { "terseLabel": "Investment income:", "verboseLabel": "Investment income and expenses:", "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/2026", "localname": "EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForContribution", "crdr": "debit", "calculation": { "http://www.mmc.com/role/STATEMENTOFCHANGESINNETASSETSAVAILABLEFORBENEFITS": { "parentTag": "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecrease", "weight": 1.0, "order": 3.0 } }, "presentation": [ "http://www.mmc.com/role/STATEMENTOFCHANGESINNETASSETSAVAILABLEFORBENEFITS" ], "lang": { "en-us": { "role": { "totalLabel": "Total contributions", "label": "EBP, Change in Net Asset Available for Benefit, Increase from Contribution", "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": [ "r144", "r196" ] }, "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForContributionAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForContributionAbstract", "presentation": [ "http://www.mmc.com/role/STATEMENTOFCHANGESINNETASSETSAVAILABLEFORBENEFITS" ], "lang": { "en-us": { "role": { "terseLabel": "Contributions:", "label": "EBP, Change in Net Asset Available for Benefit, Increase from Contribution [Abstract]" } } }, "auth_ref": [] }, "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForDividendIncomeOnInvestment": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForDividendIncomeOnInvestment", "crdr": "debit", "calculation": { "http://www.mmc.com/role/InterestinMasterTrustScheduleofNetInvestmentGainDetails": { "parentTag": "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForIncomeLossOnInvestment", "weight": 1.0, "order": 2.0 } }, "presentation": [ "http://www.mmc.com/role/ExemptPartyinInterestTransactionsDetails", "http://www.mmc.com/role/InterestinMasterTrustScheduleofNetInvestmentGainDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Dividends", "verboseLabel": "Dividend income", "label": "EBP, Change in Net Asset Available for Benefit, Increase from Dividend Income on Investment", "documentation": "Amount of increase in net asset available for benefit from dividend income on investment held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP))." } } }, "auth_ref": [ "r84", "r144", "r182", "r204" ] }, "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForEmployerContributionCash": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForEmployerContributionCash", "crdr": "debit", "calculation": { "http://www.mmc.com/role/STATEMENTOFCHANGESINNETASSETSAVAILABLEFORBENEFITS": { "parentTag": "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForContribution", "weight": 1.0, "order": 2.0 } }, "presentation": [ "http://www.mmc.com/role/STATEMENTOFCHANGESINNETASSETSAVAILABLEFORBENEFITS" ], "lang": { "en-us": { "role": { "terseLabel": "Employer", "label": "EBP, Change in Net Asset Available for Benefit, Increase from Employer Contribution, Cash", "documentation": "Amount of increase in net asset available for benefit from cash contribution from employer of participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP))." } } }, "auth_ref": [ "r56", "r144" ] }, "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForInterestAndDividendIncomeOnInvestment": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForInterestAndDividendIncomeOnInvestment", "crdr": "debit", "calculation": { "http://www.mmc.com/role/STATEMENTOFCHANGESINNETASSETSAVAILABLEFORBENEFITS": { "parentTag": "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForIncomeLossOnInvestment", "weight": 1.0, "order": 3.0 } }, "presentation": [ "http://www.mmc.com/role/STATEMENTOFCHANGESINNETASSETSAVAILABLEFORBENEFITS" ], "lang": { "en-us": { "role": { "terseLabel": "Dividends and investment income", "label": "EBP, Change in Net Asset Available for Benefit, Increase from Interest and Dividend Income on Investment", "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": [ "r111" ] }, "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForInterestIncomeOnInvestment": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForInterestIncomeOnInvestment", "crdr": "debit", "calculation": { "http://www.mmc.com/role/InterestinMasterTrustScheduleofNetInvestmentGainDetails": { "parentTag": "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForIncomeLossOnInvestment", "weight": 1.0, "order": 3.0 } }, "presentation": [ "http://www.mmc.com/role/ExemptPartyinInterestTransactionsDetails", "http://www.mmc.com/role/InterestinMasterTrustScheduleofNetInvestmentGainDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Interest", "verboseLabel": "Interest income", "label": "EBP, Change in Net Asset Available for Benefit, Increase from Interest Income on Investment", "documentation": "Amount of increase in net asset available for benefit from interest income on investment held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Excludes interest income on note receivable from participant." } } }, "auth_ref": [ "r83", "r144", "r182", "r204" ] }, "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForInterestIncomeOnNoteReceivableFromParticipant": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForInterestIncomeOnNoteReceivableFromParticipant", "crdr": "debit", "calculation": { "http://www.mmc.com/role/STATEMENTOFCHANGESINNETASSETSAVAILABLEFORBENEFITS": { "parentTag": "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecrease", "weight": 1.0, "order": 2.0 } }, "presentation": [ "http://www.mmc.com/role/STATEMENTOFCHANGESINNETASSETSAVAILABLEFORBENEFITS" ], "lang": { "en-us": { "role": { "terseLabel": "Interest income on notes receivable from participants", "label": "EBP, Change in Net Asset Available for Benefit, Increase from Interest Income on Note Receivable from Participant", "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": [ "r144", "r196" ] }, "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForParticipantContributionExcludingRollover": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForParticipantContributionExcludingRollover", "crdr": "debit", "calculation": { "http://www.mmc.com/role/STATEMENTOFCHANGESINNETASSETSAVAILABLEFORBENEFITS": { "parentTag": "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForContribution", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://www.mmc.com/role/STATEMENTOFCHANGESINNETASSETSAVAILABLEFORBENEFITS" ], "lang": { "en-us": { "role": { "terseLabel": "Participant", "label": "EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution, Excluding Rollover", "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": [ "r144", "r149", "r150", "r151", "r192", "r193" ] }, "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForParticipantContributionRollover": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForParticipantContributionRollover", "crdr": "debit", "calculation": { "http://www.mmc.com/role/STATEMENTOFCHANGESINNETASSETSAVAILABLEFORBENEFITS": { "parentTag": "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForContribution", "weight": 1.0, "order": 3.0 } }, "presentation": [ "http://www.mmc.com/role/STATEMENTOFCHANGESINNETASSETSAVAILABLEFORBENEFITS" ], "lang": { "en-us": { "role": { "terseLabel": "Rollovers", "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": [ "r144", "r149", "r150", "r151", "r192", "r193" ] }, "us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitTransferToFromExternalPlan": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitTransferToFromExternalPlan", "crdr": "debit", "calculation": { "http://www.mmc.com/role/NetTransferstoOtherPlanDetails": { "parentTag": null, "weight": null, "order": null, "root": true } }, "presentation": [ "http://www.mmc.com/role/NetTransferstoOtherPlanDetails" ], "lang": { "en-us": { "role": { "negatedTotalLabel": "Net amount transferred in the Plan reported in the statement of changes in net assets available for benefits", "label": "EBP, Change in Net Asset Available for Benefit, Transfer to (from) Plan", "documentation": "Amount of net asset available for benefit transferred to (from) employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) from (to) external plan." } } }, "auth_ref": [ "r59", "r144", "r184", "r196" ] }, "us-gaap-ebp_EmployeeBenefitPlanContributionPolicyTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanContributionPolicyTextBlock", "presentation": [ "http://www.mmc.com/role/SummaryofSignificantAccountingPoliciesPolicies" ], "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": [ "r62" ] }, "us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "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/2026", "localname": "EmployeeBenefitPlanDescriptionOfPlanLineItems", "presentation": [ "http://www.mmc.com/role/DescriptionofthePlan", "http://www.mmc.com/role/DescriptionofthePlanDetails", "http://www.mmc.com/role/PlanTermination" ], "lang": { "en-us": { "role": { "terseLabel": "EBP, Description of Plan [Line Items]", "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": [ "r183" ] }, "us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanTable": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanDescriptionOfPlanTable", "presentation": [ "http://www.mmc.com/role/DescriptionofthePlan", "http://www.mmc.com/role/DescriptionofthePlanDetails", "http://www.mmc.com/role/PlanTermination" ], "lang": { "en-us": { "role": { "terseLabel": "EBP, Description of Plan [Table]", "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": [ "r183" ] }, "us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanDescriptionOfPlanTextBlock", "presentation": [ "http://www.mmc.com/role/DescriptionofthePlan" ], "lang": { "en-us": { "role": { "terseLabel": "Description of the Plan", "label": "EBP, Description of Plan [Text Block]", "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", "r60", "r144" ] }, "us-gaap-ebp_EmployeeBenefitPlanEmployerCommonStockFundMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanEmployerCommonStockFundMember", "presentation": [ "http://www.mmc.com/role/InterestinMasterTrustScheduleofMasterTrustNetAssetsDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Marsh Stock Fund", "label": "EBP, Employer, Common Stock Fund [Member]", "documentation": "Fund with common stock issued by employer of participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP))." } } }, "auth_ref": [ "r126", "r180", "r188", "r190", "r201", "r206", "r207" ] }, "us-gaap-ebp_EmployeeBenefitPlanEmployerCommonStockMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanEmployerCommonStockMember", "presentation": [ "http://www.mmc.com/role/ExemptPartyinInterestTransactionsDetails", "http://www.mmc.com/role/FairValueMeasurementsDetails", "http://www.mmc.com/role/InterestinMasterTrustScheduleofMasterTrustNetAssetsDetails", "http://www.mmc.com/role/InterestinMasterTrustScheduleofNetInvestmentGainDetails", "http://www.mmc.com/role/SummaryofSignificantAccountingPoliciesDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Marsh common stock", "verboseLabel": "Marsh & McLennan Companies common stock", "label": "EBP, Employer, Common Stock [Member]", "documentation": "Common stock issued by employer of participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP))." } } }, "auth_ref": [ "r126", "r180", "r188", "r189", "r190", "r201", "r206", "r207" ] }, "us-gaap-ebp_EmployeeBenefitPlanEmployerContributionMatchingPercentage": { "xbrltype": "percentItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanEmployerContributionMatchingPercentage", "presentation": [ "http://www.mmc.com/role/DescriptionofthePlanDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Employer contribution, matching percentage", "label": "EBP, Employer Contribution, Matching 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": [ "r144" ] }, "us-gaap-ebp_EmployeeBenefitPlanEmployerContributionParticipantCompensationMatchedPercentage": { "xbrltype": "percentItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanEmployerContributionParticipantCompensationMatchedPercentage", "presentation": [ "http://www.mmc.com/role/DescriptionofthePlanDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Employer contribution, participation compensation matched percentage", "label": "EBP, Employer Contribution, Participant Compensation Matched, Percentage", "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": [ "r144" ] }, "us-gaap-ebp_EmployeeBenefitPlanExcessContributionPayablePolicyTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanExcessContributionPayablePolicyTextBlock", "presentation": [ "http://www.mmc.com/role/SummaryofSignificantAccountingPoliciesPolicies" ], "lang": { "en-us": { "role": { "terseLabel": "Excess Contributions Payable", "label": "EBP, Excess Contribution Payable [Policy Text Block]", "documentation": "Disclosure of accounting policy for excess contribution payable to participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP))." } } }, "auth_ref": [ "r144" ] }, "us-gaap-ebp_EmployeeBenefitPlanExpensePolicyTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanExpensePolicyTextBlock", "presentation": [ "http://www.mmc.com/role/SummaryofSignificantAccountingPoliciesPolicies" ], "lang": { "en-us": { "role": { "terseLabel": "Administrative Expenses", "label": "EBP, Expense [Policy Text Block]", "documentation": "Disclosure of accounting policy for expense incurred by employee stock purchase, saving, or similar plan (employee benefit plan (EBP))." } } }, "auth_ref": [ "r144" ] }, "us-gaap-ebp_EmployeeBenefitPlanForfeitedNonvestedAccount": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanForfeitedNonvestedAccount", "crdr": "debit", "presentation": [ "http://www.mmc.com/role/DescriptionofthePlanDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Forfeited non-vested account balance", "label": "EBP, Forfeited Nonvested Account", "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": [ "r65", "r144" ] }, "us-gaap-ebp_EmployeeBenefitPlanForfeitedNonvestedAccountDecreaseForEmployerContribution": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanForfeitedNonvestedAccountDecreaseForEmployerContribution", "crdr": "credit", "presentation": [ "http://www.mmc.com/role/DescriptionofthePlanDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Employer contributions funded from forfeited non-vested accounts", "label": "EBP, Forfeited Nonvested 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": [ "r65", "r92", "r144" ] }, "us-gaap-ebp_EmployeeBenefitPlanForm5500CaptionNetAssetAvailableForBenefit": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanForm5500CaptionNetAssetAvailableForBenefit", "crdr": "debit", "calculation": { "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500ReconciliationofNetAssetsAvailableforBenefitDetails": { "parentTag": null, "weight": null, "order": null, "root": true } }, "presentation": [ "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500ReconciliationofNetAssetsAvailableforBenefitDetails" ], "lang": { "en-us": { "role": { "totalLabel": "Net assets available for benefits per the Form 5500, at fair value", "label": "EBP, Form 5500 Caption, Net Assets", "documentation": "Amount of net asset available for benefit as reported in Form 5500 caption for employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Form 5500 is form provided by Department of the Treasury, Internal Revenue Service (IRS); Department of Labor (DOL), Employee Benefit Security Administration (EBSA); and Pension Benefit Guaranty Corporation (PBGC)." } } }, "auth_ref": [ "r144", "r186" ] }, "us-gaap-ebp_EmployeeBenefitPlanForm5500CaptionNetAssetAvailableForBenefitAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanForm5500CaptionNetAssetAvailableForBenefitAbstract", "presentation": [ "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500ReconciliationofNetAssetsAvailableforBenefitDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Statements of net assets available for benefits:", "label": "EBP, Form 5500 Caption, Net Assets [Abstract]" } } }, "auth_ref": [] }, "us-gaap-ebp_EmployeeBenefitPlanForm5500CaptionNetIncomeLoss": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanForm5500CaptionNetIncomeLoss", "crdr": "debit", "calculation": { "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500ReconciliationofBenefitsPaidandDecreaseinNetAssetsDetails": { "parentTag": null, "weight": null, "order": null, "root": true } }, "presentation": [ "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500ReconciliationofBenefitsPaidandDecreaseinNetAssetsDetails" ], "lang": { "en-us": { "role": { "totalLabel": "Net gain per Form 5500", "label": "EBP, Form 5500 Caption, Net Income (Loss)", "documentation": "Amount of increase (decrease) in net asset available for benefit from net income (loss) as reported in Form 5500 caption for employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Form 5500 is form provided by Department of the Treasury, Internal Revenue Service (IRS); Department of Labor (DOL), Employee Benefit Security Administration (EBSA); and Pension Benefit Guaranty Corporation (PBGC)." } } }, "auth_ref": [ "r152", "r186" ] }, "us-gaap-ebp_EmployeeBenefitPlanForm5500CaptionNetIncomeLossAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanForm5500CaptionNetIncomeLossAbstract", "presentation": [ "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500ReconciliationofBenefitsPaidandDecreaseinNetAssetsDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Statement of changes in net assets available for benefits:", "label": "EBP, Form 5500 Caption, Net Income (Loss) [Abstract]" } } }, "auth_ref": [] }, "us-gaap-ebp_EmployeeBenefitPlanForm5500CaptionPaymentToParticipant": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanForm5500CaptionPaymentToParticipant", "crdr": "credit", "calculation": { "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500ReconciliationofBenefitsPaidandDecreaseinNetAssetsDetails": { "parentTag": null, "weight": null, "order": null, "root": true } }, "presentation": [ "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500ReconciliationofBenefitsPaidandDecreaseinNetAssetsDetails" ], "lang": { "en-us": { "role": { "totalLabel": "Benefits paid to participants per Form 5500", "label": "EBP, Form 5500 Caption, Benefit Payment and Payments to Provide Benefits", "documentation": "Amount of decrease in net asset available for benefit from benefit payment and payment to provide benefit as reported in Form 5500 caption for employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Includes, but is not limited to, payment to provide benefit directly to participant, direct rollover, and payment to insurance carrier. Form 5500 is form provided by Department of the Treasury, Internal Revenue Service (IRS); Department of Labor (DOL), Employee Benefit Security Administration (EBSA); and Pension Benefit Guaranty Corporation (PBGC)." } } }, "auth_ref": [ "r144", "r186" ] }, "us-gaap-ebp_EmployeeBenefitPlanForm5500CaptionPaymentToParticipantAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanForm5500CaptionPaymentToParticipantAbstract", "presentation": [ "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500ReconciliationofBenefitsPaidandDecreaseinNetAssetsDetails" ], "lang": { "en-us": { "role": { "terseLabel": "The following is a reconciliation of benefits paid to and withdrawals by participants per the financial statements to Form 5500 for the year ended December 31, 2025:", "label": "EBP, Form 5500 Caption, Benefit Payment and Payments to Provide Benefits [Abstract]" } } }, "auth_ref": [] }, "us-gaap-ebp_EmployeeBenefitPlanFullyBenefitResponsiveInvestmentContractLineItems": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanFullyBenefitResponsiveInvestmentContractLineItems", "presentation": [ "http://www.mmc.com/role/NetTransferstoOtherPlan" ], "lang": { "en-us": { "role": { "terseLabel": "EBP, Fully Benefit-Responsive Investment Contract [Line Items]", "label": "EBP, Fully Benefit-Responsive Investment Contract [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": [ "r101", "r107" ] }, "us-gaap-ebp_EmployeeBenefitPlanFullyBenefitResponsiveInvestmentContractTable": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanFullyBenefitResponsiveInvestmentContractTable", "presentation": [ "http://www.mmc.com/role/NetTransferstoOtherPlan" ], "lang": { "en-us": { "role": { "terseLabel": "EBP, Fully Benefit-Responsive Investment Contract [Table]", "label": "EBP, Fully Benefit-Responsive Investment Contract [Table]", "documentation": "Disclosure of information about fully benefit-responsive investment contract held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP))." } } }, "auth_ref": [ "r101", "r107", "r144" ] }, "us-gaap-ebp_EmployeeBenefitPlanInvestmentAcquiredExcludingPlanInterestInMasterTrustCost": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanInvestmentAcquiredExcludingPlanInterestInMasterTrustCost", "crdr": "debit", "presentation": [ "http://www.mmc.com/role/ExemptPartyinInterestTransactionsDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Cost of shares acquired", "label": "EBP, Investment Acquired, Excluding Plan Interest in Master Trust, Cost", "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": [ "r164", "r171", "r177" ] }, "us-gaap-ebp_EmployeeBenefitPlanInvestmentContractValue": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanInvestmentContractValue", "crdr": "debit", "calculation": { "http://www.mmc.com/role/InterestinMasterTrustScheduleofMasterTrustNetAssetsDetails": { "parentTag": "us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefit", "weight": 1.0, "order": 4.0 } }, "presentation": [ "http://www.mmc.com/role/InterestinMasterTrustScheduleofMasterTrustNetAssetsDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Security backed investment contracts at contract value", "label": "EBP, Investment, Contract Value", "documentation": "Contract value of investment held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)), including, but not limited to, insurance contract meeting fully benefit-responsive investment criteria." } } }, "auth_ref": [ "r69", "r75", "r107", "r113", "r115", "r195" ] }, "us-gaap-ebp_EmployeeBenefitPlanInvestmentEmployerCommonStockToTotalAssetPercentage": { "xbrltype": "percentItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanInvestmentEmployerCommonStockToTotalAssetPercentage", "presentation": [ "http://www.mmc.com/role/SummaryofSignificantAccountingPoliciesDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Percentage of investments held by the master trust", "label": "EBP, Investment, Employer, Common Stock, to Total Asset, Percentage", "documentation": "Percentage of investment in common stock of employer of participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)), to total plan assets." } } }, "auth_ref": [ "r191" ] }, "us-gaap-ebp_EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustFairValue": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustFairValue", "crdr": "debit", "calculation": { "http://www.mmc.com/role/STATEMENTSOFNETASSETSAVAILABLEFORBENEFITS": { "parentTag": "us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValue", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://www.mmc.com/role/ExemptPartyinInterestTransactionsDetails", "http://www.mmc.com/role/FairValueMeasurementsDetails", "http://www.mmc.com/role/NetAssetValueNAVPerShareDetails", "http://www.mmc.com/role/STATEMENTSOFNETASSETSAVAILABLEFORBENEFITS", "http://www.mmc.com/role/SummaryofSignificantAccountingPoliciesDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Investments at fair value", "verboseLabel": "Plan Identified Investments Held by Master Trust at Fair Value", "label": "EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value", "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", "r32", "r33", "r35", "r101", "r120", "r121", "r122", "r123", "r124", "r125", "r126", "r127", "r128", "r129", "r144" ] }, "us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValue": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanInvestmentFairValue", "crdr": "debit", "calculation": { "http://www.mmc.com/role/STATEMENTSOFNETASSETSAVAILABLEFORBENEFITS": { "parentTag": "us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefit", "weight": 1.0, "order": 1.0 }, "http://www.mmc.com/role/InterestinMasterTrustScheduleofMasterTrustNetAssetsDetails": { "parentTag": "us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefit", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://www.mmc.com/role/InterestinMasterTrustScheduleofMasterTrustNetAssetsDetails", "http://www.mmc.com/role/STATEMENTSOFNETASSETSAVAILABLEFORBENEFITS", "http://www.mmc.com/role/SummaryofSignificantAccountingPoliciesDetails" ], "lang": { "en-us": { "role": { "totalLabel": "Total investments", "terseLabel": "Investments", "label": "EBP, Investment, Fair Value", "documentation": "Fair value of investment 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", "r32", "r33", "r35", "r69", "r70", "r71", "r72", "r73", "r74", "r75", "r101", "r108", "r113", "r114", "r115", "r132", "r133", "r135", "r136", "r137", "r138", "r139", "r140", "r145", "r195" ] }, "us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanInvestmentFairValueAbstract", "presentation": [ "http://www.mmc.com/role/STATEMENTSOFNETASSETSAVAILABLEFORBENEFITS" ], "lang": { "en-us": { "role": { "terseLabel": "Participant-directed investments:", "label": "EBP, Investment, Fair Value [Abstract]" } } }, "auth_ref": [] }, "us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "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/2026", "localname": "EmployeeBenefitPlanInvestmentFairValueAndNavLineItems", "presentation": [ "http://www.mmc.com/role/FairValueMeasurements", "http://www.mmc.com/role/FairValueMeasurementsDetails", "http://www.mmc.com/role/FairValueMeasurementsTables", "http://www.mmc.com/role/NetAssetValueNAVPerShare", "http://www.mmc.com/role/NetAssetValueNAVPerShareDetails", "http://www.mmc.com/role/NetAssetValueNAVPerShareTables" ], "lang": { "en-us": { "role": { "terseLabel": "EBP, Investment, Fair Value and NAV [Line Items]", "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", "r32", "r33", "r35", "r36", "r37", "r38", "r39", "r40", "r41", "r66", "r89", "r120", "r121", "r122", "r123", "r124", "r125", "r126", "r127", "r128", "r129" ] }, "us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTable": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanInvestmentFairValueAndNavTable", "presentation": [ "http://www.mmc.com/role/FairValueMeasurements", "http://www.mmc.com/role/FairValueMeasurementsDetails", "http://www.mmc.com/role/FairValueMeasurementsTables", "http://www.mmc.com/role/NetAssetValueNAVPerShare", "http://www.mmc.com/role/NetAssetValueNAVPerShareDetails", "http://www.mmc.com/role/NetAssetValueNAVPerShareTables" ], "lang": { "en-us": { "role": { "terseLabel": "EBP, Investment, Fair Value and NAV [Table]", "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", "r32", "r33", "r35", "r36", "r37", "r38", "r39", "r40", "r41", "r66", "r89", "r104", "r120", "r121", "r122", "r123", "r124", "r125", "r126", "r127", "r128", "r129" ] }, "us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanInvestmentFairValueAndNavTableTextBlock", "presentation": [ "http://www.mmc.com/role/FairValueMeasurementsTables", "http://www.mmc.com/role/NetAssetValueNAVPerShareTables" ], "lang": { "en-us": { "role": { "terseLabel": "Schedule of Fair Value Hierarchy", "label": "EBP, Investment, Fair Value and NAV [Table Text Block]", "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", "r31", "r33", "r34", "r42", "r144", "r198", "r199", "r202" ] }, "us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanInvestmentFairValueAndNavTextBlock", "presentation": [ "http://www.mmc.com/role/FairValueMeasurements", "http://www.mmc.com/role/NetAssetValueNAVPerShare" ], "lang": { "en-us": { "role": { "terseLabel": "Fair Value Measurements", "verboseLabel": "Net Asset Value (NAV) Per Share", "label": "EBP, Investment, Fair Value and NAV [Text Block]", "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", "r32", "r33", "r35", "r38", "r39", "r40", "r41", "r66", "r89", "r90", "r101", "r102", "r144", "r147" ] }, "us-gaap-ebp_EmployeeBenefitPlanInvestmentIncomeReceivable": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanInvestmentIncomeReceivable", "crdr": "debit", "calculation": { "http://www.mmc.com/role/InterestinMasterTrustScheduleofMasterTrustNetAssetsDetails": { "parentTag": "us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefit", "weight": 1.0, "order": 2.0 }, "http://www.mmc.com/role/STATEMENTSOFNETASSETSAVAILABLEFORBENEFITS": { "parentTag": "us-gaap-ebp_EmployeeBenefitPlanReceivable", "weight": 1.0, "order": 3.0 } }, "presentation": [ "http://www.mmc.com/role/InterestinMasterTrustScheduleofMasterTrustNetAssetsDetails", "http://www.mmc.com/role/STATEMENTSOFNETASSETSAVAILABLEFORBENEFITS" ], "lang": { "en-us": { "role": { "terseLabel": "Dividends and interest receivable", "verboseLabel": "Dividends and interest receivable", "label": "EBP, Investment Income, Receivable", "documentation": "Amount of receivable for income earned but not yet received on investment held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Includes, but is not limited to, dividend and interest receivables." } } }, "auth_ref": [ "r76", "r117", "r142", "r145" ] }, "us-gaap-ebp_EmployeeBenefitPlanInvestmentMeasurementInput": { "xbrltype": "decimalItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanInvestmentMeasurementInput", "presentation": [ "http://www.mmc.com/role/FairValueMeasurementsDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Valuation input (in dollars per share)", "label": "EBP, Investment, Measurement Input", "documentation": "Value of input used to measure investment held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP))." } } }, "auth_ref": [ "r26", "r27", "r28", "r144" ] }, "us-gaap-ebp_EmployeeBenefitPlanInvestmentNumberOfShares": { "xbrltype": "sharesItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanInvestmentNumberOfShares", "presentation": [ "http://www.mmc.com/role/ExemptPartyinInterestTransactionsDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Common stock (in shares)", "label": "EBP, Investment, Number of Shares", "documentation": "Number of shares or units of investment held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP))." } } }, "auth_ref": [ "r67", "r95", "r156", "r161", "r164", "r165", "r168" ] }, "us-gaap-ebp_EmployeeBenefitPlanInvestmentPlanInterestInMasterTrustFairValue": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanInvestmentPlanInterestInMasterTrustFairValue", "crdr": "debit", "calculation": { "http://www.mmc.com/role/STATEMENTSOFNETASSETSAVAILABLEFORBENEFITS": { "parentTag": "us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValue", "weight": 1.0, "order": 2.0 } }, "presentation": [ "http://www.mmc.com/role/ExemptPartyinInterestTransactionsDetails", "http://www.mmc.com/role/NetAssetValueNAVPerShareDetails", "http://www.mmc.com/role/STATEMENTSOFNETASSETSAVAILABLEFORBENEFITS" ], "lang": { "en-us": { "role": { "terseLabel": "Plan interest in commingled investments held by master trust (Note 3)", "verboseLabel": "Plan interest in commingled investments held by master trust", "label": "EBP, Investment, Plan Interest in Master Trust, Fair Value", "documentation": "Fair value of plan interest in master trust held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP))." } } }, "auth_ref": [ "r52", "r75", "r145", "r195" ] }, "us-gaap-ebp_EmployeeBenefitPlanInvestmentPolicyTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanInvestmentPolicyTextBlock", "presentation": [ "http://www.mmc.com/role/SummaryofSignificantAccountingPoliciesPolicies" ], "lang": { "en-us": { "role": { "terseLabel": "Investment Valuation and Income Recognition", "label": "EBP, Investment [Policy Text Block]", "documentation": "Disclosure of accounting policy for investment held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP))." } } }, "auth_ref": [ "r100", "r104", "r105", "r144" ] }, "us-gaap-ebp_EmployeeBenefitPlanMasterTrustAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanMasterTrustAbstract", "lang": { "en-us": { "role": { "label": "EBP, Master Trust [Abstract]" } } }, "auth_ref": [] }, "us-gaap-ebp_EmployeeBenefitPlanMasterTrustLineItems": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanMasterTrustLineItems", "presentation": [ "http://www.mmc.com/role/InterestinMasterTrust", "http://www.mmc.com/role/InterestinMasterTrustNarrativeDetails", "http://www.mmc.com/role/InterestinMasterTrustScheduleofMasterTrustNetAssetsDetails", "http://www.mmc.com/role/InterestinMasterTrustScheduleofNetInvestmentGainDetails", "http://www.mmc.com/role/InterestinMasterTrustTables" ], "lang": { "en-us": { "role": { "terseLabel": "EBP, Master Trust [Line Items]", "label": "EBP, Master Trust [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": [ "r24", "r25", "r26", "r27", "r28", "r32", "r33", "r35", "r36", "r37", "r38", "r39", "r40", "r41", "r110", "r111", "r113", "r115", "r116", "r132", "r133", "r134", "r135", "r136", "r137", "r138", "r139", "r140", "r145" ] }, "us-gaap-ebp_EmployeeBenefitPlanMasterTrustTable": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanMasterTrustTable", "presentation": [ "http://www.mmc.com/role/InterestinMasterTrust", "http://www.mmc.com/role/InterestinMasterTrustNarrativeDetails", "http://www.mmc.com/role/InterestinMasterTrustScheduleofMasterTrustNetAssetsDetails", "http://www.mmc.com/role/InterestinMasterTrustScheduleofNetInvestmentGainDetails", "http://www.mmc.com/role/InterestinMasterTrustTables" ], "lang": { "en-us": { "role": { "terseLabel": "EBP, Master Trust [Table]", "label": "EBP, Master Trust [Table]", "documentation": "Disclosure of information about master trust arrangement in which employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) participates." } } }, "auth_ref": [ "r32", "r33", "r35", "r36", "r37", "r38", "r39", "r40", "r41", "r110", "r111", "r113", "r115", "r116", "r132", "r133", "r134", "r135", "r136", "r137", "r138", "r139", "r140", "r145" ] }, "us-gaap-ebp_EmployeeBenefitPlanMasterTrustTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanMasterTrustTableTextBlock", "presentation": [ "http://www.mmc.com/role/InterestinMasterTrustTables" ], "lang": { "en-us": { "role": { "terseLabel": "Schedule of Master Trust Net Assets", "label": "EBP, Master Trust [Table Text Block]", "documentation": "Tabular disclosure of master trust arrangement in which employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) participates." } } }, "auth_ref": [ "r23", "r31", "r33", "r145", "r203", "r205", "r207", "r208" ] }, "us-gaap-ebp_EmployeeBenefitPlanMasterTrustTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanMasterTrustTextBlock", "presentation": [ "http://www.mmc.com/role/InterestinMasterTrust" ], "lang": { "en-us": { "role": { "terseLabel": "Interest in Master Trust", "label": "EBP, Master Trust [Text Block]", "documentation": "The entire disclosure for master trust arrangement in which employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) participates." } } }, "auth_ref": [ "r26", "r28", "r29", "r30", "r32", "r33", "r35", "r38", "r39", "r40", "r41", "r109", "r112", "r113", "r115", "r116", "r145" ] }, "us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefit": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanNetAssetAvailableForBenefit", "crdr": "debit", "calculation": { "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500ReconciliationofNetAssetsAvailableforBenefitDetails": { "parentTag": "us-gaap-ebp_EmployeeBenefitPlanForm5500CaptionNetAssetAvailableForBenefit", "weight": 1.0, "order": 1.0 }, "http://www.mmc.com/role/STATEMENTSOFNETASSETSAVAILABLEFORBENEFITS": { "parentTag": null, "weight": null, "order": null, "root": true }, "http://www.mmc.com/role/InterestinMasterTrustScheduleofMasterTrustNetAssetsDetails": { "parentTag": null, "weight": null, "order": null, "root": true } }, "presentation": [ "http://www.mmc.com/role/InterestinMasterTrustScheduleofMasterTrustNetAssetsDetails", "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500ReconciliationofNetAssetsAvailableforBenefitDetails", "http://www.mmc.com/role/STATEMENTOFCHANGESINNETASSETSAVAILABLEFORBENEFITS", "http://www.mmc.com/role/STATEMENTSOFNETASSETSAVAILABLEFORBENEFITS" ], "lang": { "en-us": { "role": { "totalLabel": "Net assets available for benefits", "periodStartLabel": "Beginning of year", "periodEndLabel": "End of year", "verboseLabel": "Net assets available for benefits per the financial statements", "label": "EBP, Net Asset Available for Benefit", "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", "r54", "r81", "r93", "r94", "r103", "r117", "r144", "r145", "r195" ] }, "us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefitAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanNetAssetAvailableForBenefitAbstract", "presentation": [ "http://www.mmc.com/role/STATEMENTOFCHANGESINNETASSETSAVAILABLEFORBENEFITS" ], "lang": { "en-us": { "role": { "terseLabel": "Net assets available for benefits:", "label": "EBP, Net Asset Available for Benefit [Abstract]" } } }, "auth_ref": [] }, "us-gaap-ebp_EmployeeBenefitPlanNonconsolidatedMasterTrustAndPlanInterestInMasterTrustAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanNonconsolidatedMasterTrustAndPlanInterestInMasterTrustAxis", "presentation": [ "http://www.mmc.com/role/InterestinMasterTrustScheduleofMasterTrustNetAssetsDetails", "http://www.mmc.com/role/SummaryofSignificantAccountingPoliciesDetails" ], "lang": { "en-us": { "role": { "terseLabel": "EBP, Nonconsolidated, Master Trust and Plan Interest in Master Trust [Axis]", "label": "EBP, Nonconsolidated, Master Trust and Plan Interest in Master Trust [Axis]", "documentation": "Information by master trust and plan interest in master trust for employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) reported in note to financial statement. Excludes plan interest in master trust information reported in statement of net asset available for benefit and statement of change in net asset available for benefit." } } }, "auth_ref": [ "r24", "r25", "r26", "r27", "r28", "r32", "r35", "r36", "r37", "r38", "r39", "r40", "r41", "r110", "r111", "r113", "r115", "r116", "r132", "r133", "r134", "r135", "r136", "r137", "r138", "r139", "r140", "r145" ] }, "us-gaap-ebp_EmployeeBenefitPlanNonconsolidatedMasterTrustAndPlanInterestInMasterTrustDomain": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanNonconsolidatedMasterTrustAndPlanInterestInMasterTrustDomain", "presentation": [ "http://www.mmc.com/role/InterestinMasterTrustScheduleofMasterTrustNetAssetsDetails", "http://www.mmc.com/role/SummaryofSignificantAccountingPoliciesDetails" ], "lang": { "en-us": { "role": { "terseLabel": "EBP, Nonconsolidated, Master Trust and Plan Interest in Master Trust [Domain]", "label": "EBP, Nonconsolidated, Master Trust and Plan Interest in Master Trust [Domain]", "documentation": "Master trust and plan interest in master trust for employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) reported in note to financial statement. Excludes plan interest in master trust information reported in statement of net asset available for benefit and statement of change in net asset available for benefit." } } }, "auth_ref": [ "r24", "r25", "r26", "r27", "r28", "r32", "r35", "r36", "r37", "r38", "r39", "r40", "r41", "r110", "r111", "r113", "r115", "r116", "r132", "r133", "r134", "r135", "r136", "r137", "r138", "r139", "r140", "r145" ] }, "us-gaap-ebp_EmployeeBenefitPlanNonconsolidatedMasterTrustMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanNonconsolidatedMasterTrustMember", "presentation": [ "http://www.mmc.com/role/InterestinMasterTrustScheduleofMasterTrustNetAssetsDetails", "http://www.mmc.com/role/SummaryofSignificantAccountingPoliciesDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Master Trust - Commingled Funds", "label": "EBP, Nonconsolidated, Master Trust [Member]", "documentation": "Master trust in which employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) participates that is reported in note to financial statement. Excludes plan interest in master trust information reported in statement of net asset available for benefit and statement of change in net asset available for benefit." } } }, "auth_ref": [ "r24", "r25", "r26", "r27", "r28", "r32", "r35", "r36", "r37", "r38", "r39", "r40", "r41", "r110", "r111", "r113", "r116", "r132", "r133", "r134", "r135", "r136", "r137", "r138", "r139", "r140", "r145" ] }, "us-gaap-ebp_EmployeeBenefitPlanNonconsolidatedPlanInterestInMasterTrustMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanNonconsolidatedPlanInterestInMasterTrustMember", "presentation": [ "http://www.mmc.com/role/InterestinMasterTrustScheduleofMasterTrustNetAssetsDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Plan's Interest in Master Trust Commingled Funds", "label": "EBP, Nonconsolidated, Plan Interest in Master Trust [Member]", "documentation": "Plan interest in master trust for employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) that is reported in note to financial statement. Excludes plan interest in master trust information reported in statement of net asset available for benefit and statement of change in net asset available for benefit." } } }, "auth_ref": [ "r32", "r115", "r116", "r145" ] }, "us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipant": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanNoteReceivableFromParticipant", "crdr": "debit", "calculation": { "http://www.mmc.com/role/STATEMENTSOFNETASSETSAVAILABLEFORBENEFITS": { "parentTag": "us-gaap-ebp_EmployeeBenefitPlanReceivable", "weight": 1.0, "order": 1.0 } }, "presentation": [ "http://www.mmc.com/role/STATEMENTSOFNETASSETSAVAILABLEFORBENEFITS" ], "lang": { "en-us": { "role": { "terseLabel": "Notes receivable from participants", "label": "EBP, Note Receivable from Participant", "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": [ "r99", "r144", "r195" ] }, "us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantAccountMaximumBorrowingAmount": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanNoteReceivableFromParticipantAccountMaximumBorrowingAmount", "crdr": "debit", "presentation": [ "http://www.mmc.com/role/DescriptionofthePlanDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Plan participants maximum borrowing amount from account", "label": "EBP, Note 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": [ "r144" ] }, "us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantAccountMaximumBorrowingToTotalAccountPercentage": { "xbrltype": "percentItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanNoteReceivableFromParticipantAccountMaximumBorrowingToTotalAccountPercentage", "presentation": [ "http://www.mmc.com/role/DescriptionofthePlanDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Plan participants maximum borrowing percent from account", "label": "EBP, Note Receivable from Participant, Account, Maximum Borrowing, to Total Account, Percentage", "documentation": "Percentage of maximum account balance that participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) can borrow to total participant account balance." } } }, "auth_ref": [ "r144" ] }, "us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantPolicyTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanNoteReceivableFromParticipantPolicyTextBlock", "presentation": [ "http://www.mmc.com/role/SummaryofSignificantAccountingPoliciesPolicies" ], "lang": { "en-us": { "role": { "terseLabel": "Notes Receivable from Participants", "label": "EBP, Note Receivable from Participant [Policy Text Block]", "documentation": "Disclosure of accounting policy for note receivable from participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP))." } } }, "auth_ref": [ "r144" ] }, "us-gaap-ebp_EmployeeBenefitPlanParticipantContributionAutomaticDeferralRate": { "xbrltype": "percentItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanParticipantContributionAutomaticDeferralRate", "presentation": [ "http://www.mmc.com/role/DescriptionofthePlanDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Automatic eligible base pay percentage", "label": "EBP, 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": [ "r144" ] }, "us-gaap-ebp_EmployeeBenefitPlanParticipantContributionPretaxMaximumAnnualCompensationToTotalCompensationPercentage": { "xbrltype": "percentItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanParticipantContributionPretaxMaximumAnnualCompensationToTotalCompensationPercentage", "presentation": [ "http://www.mmc.com/role/DescriptionofthePlanDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Before tax participant contribution limit, as % of eligible compensation", "label": "EBP, Participant Contribution, Pretax, 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": [ "r144" ] }, "us-gaap-ebp_EmployeeBenefitPlanParticipantContributionReceivable": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanParticipantContributionReceivable", "crdr": "debit", "calculation": { "http://www.mmc.com/role/STATEMENTSOFNETASSETSAVAILABLEFORBENEFITS": { "parentTag": "us-gaap-ebp_EmployeeBenefitPlanReceivable", "weight": 1.0, "order": 2.0 } }, "presentation": [ "http://www.mmc.com/role/STATEMENTSOFNETASSETSAVAILABLEFORBENEFITS" ], "lang": { "en-us": { "role": { "terseLabel": "Contributions receivable", "label": "EBP, Participant Contribution, Receivable", "documentation": "Amount of contribution receivable from participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP))." } } }, "auth_ref": [ "r96", "r98", "r144" ] }, "us-gaap-ebp_EmployeeBenefitPlanParticipantLoanInterestRate": { "xbrltype": "percentItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanParticipantLoanInterestRate", "presentation": [ "http://www.mmc.com/role/DescriptionofthePlanDetails", "http://www.mmc.com/role/SCHEDULEHPARTIVLINE4iSCHEDULEOFASSETSHELDATENDOFYEARDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Participant loan interest rate", "label": "EBP, 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": [ "r95", "r158" ] }, "us-gaap-ebp_EmployeeBenefitPlanPaymentToParticipantPolicyTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanPaymentToParticipantPolicyTextBlock", "presentation": [ "http://www.mmc.com/role/SummaryofSignificantAccountingPoliciesPolicies" ], "lang": { "en-us": { "role": { "terseLabel": "Payment of Benefits", "label": "EBP, Payment to Participant [Policy Text Block]", "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": [ "r144" ] }, "us-gaap-ebp_EmployeeBenefitPlanPlanNumber": { "xbrltype": "threeDigitItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanPlanNumber", "presentation": [ "http://www.mmc.com/role/SCHEDULEHPARTIVLINE4iSCHEDULEOFASSETSHELDATENDOFYEARDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Plan number", "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": [ "r153", "r159", "r164", "r165", "r166", "r174", "r194", "r195", "r196" ] }, "us-gaap-ebp_EmployeeBenefitPlanPlanTerminationTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanPlanTerminationTextBlock", "presentation": [ "http://www.mmc.com/role/PlanTermination" ], "lang": { "en-us": { "role": { "terseLabel": "Plan Termination", "label": "EBP, Plan Termination [Text Block]", "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": [ "r118", "r144" ] }, "us-gaap-ebp_EmployeeBenefitPlanPooledSeparateAccountMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanPooledSeparateAccountMember", "presentation": [ "http://www.mmc.com/role/FairValueMeasurementsDetails", "http://www.mmc.com/role/InterestinMasterTrustScheduleofMasterTrustNetAssetsDetails", "http://www.mmc.com/role/InterestinMasterTrustScheduleofNetInvestmentGainDetails", "http://www.mmc.com/role/NetAssetValueNAVPerShareDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Commingled Funds", "label": "EBP, Pooled Separate Account [Member]", "documentation": "Separate account in which employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) participates." } } }, "auth_ref": [ "r123", "r131", "r135", "r141" ] }, "us-gaap-ebp_EmployeeBenefitPlanReceivable": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanReceivable", "crdr": "debit", "calculation": { "http://www.mmc.com/role/STATEMENTSOFNETASSETSAVAILABLEFORBENEFITS": { "parentTag": "us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefit", "weight": 1.0, "order": 2.0 } }, "presentation": [ "http://www.mmc.com/role/STATEMENTSOFNETASSETSAVAILABLEFORBENEFITS" ], "lang": { "en-us": { "role": { "totalLabel": "Total receivables", "label": "EBP, Receivable", "documentation": "Amount of receivable of employee stock purchase, saving, or similar plan (employee benefit plan (EBP))." } } }, "auth_ref": [ "r144", "r195" ] }, "us-gaap-ebp_EmployeeBenefitPlanReceivableAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanReceivableAbstract", "presentation": [ "http://www.mmc.com/role/STATEMENTSOFNETASSETSAVAILABLEFORBENEFITS" ], "lang": { "en-us": { "role": { "terseLabel": "Receivables:", "label": "EBP, Receivable [Abstract]" } } }, "auth_ref": [] }, "us-gaap-ebp_EmployeeBenefitPlanReconciliationToForm5500Abstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanReconciliationToForm5500Abstract", "lang": { "en-us": { "role": { "label": "EBP, Reconciliation of Financial Statement to Form 5500 [Abstract]" } } }, "auth_ref": [] }, "us-gaap-ebp_EmployeeBenefitPlanReconciliationToForm5500LineItems": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanReconciliationToForm5500LineItems", "presentation": [ "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500", "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500ReconciliationofBenefitsPaidandDecreaseinNetAssetsDetails", "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500ReconciliationofNetAssetsAvailableforBenefitDetails", "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500Tables" ], "lang": { "en-us": { "role": { "terseLabel": "EBP, Reconciliation of Financial Statement to Form 5500 [Line Items]", "label": "EBP, Reconciliation of Financial Statement to Form 5500 [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": [ "r186" ] }, "us-gaap-ebp_EmployeeBenefitPlanReconciliationToForm5500NetAssetAvailableForBenefitAllocationToWithdrawingParticipantNotYetPaid": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanReconciliationToForm5500NetAssetAvailableForBenefitAllocationToWithdrawingParticipantNotYetPaid", "crdr": "credit", "calculation": { "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500ReconciliationofNetAssetsAvailableforBenefitDetails": { "parentTag": "us-gaap-ebp_EmployeeBenefitPlanForm5500CaptionNetAssetAvailableForBenefit", "weight": -1.0, "order": 2.0 } }, "presentation": [ "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500ReconciliationofNetAssetsAvailableforBenefitDetails", "http://www.mmc.com/role/SummaryofSignificantAccountingPoliciesDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Amounts allocated to withdrawing participants", "negatedTerseLabel": "Less: Amounts allocated to withdrawing participants", "label": "EBP, Reconciliation to Form 5500, Net Asset Available for Benefit, Allocation to Withdrawing Participant, Not yet Paid", "documentation": "Amount of asset allocated, but not yet paid, to participant electing to withdraw from employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) to reconcile net asset available for benefit per financial statement to Form 5500 caption. Form 5500 is form provided by Department of the Treasury, Internal Revenue Service (IRS); Department of Labor (DOL), Employee Benefit Security Administration (EBSA); and Pension Benefit Guaranty Corporation (PBGC)." } } }, "auth_ref": [ "r144", "r186" ] }, "us-gaap-ebp_EmployeeBenefitPlanReconciliationToForm5500PaymentToParticipantDecreaseForAllocationToWithdrawingParticipantPaid": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanReconciliationToForm5500PaymentToParticipantDecreaseForAllocationToWithdrawingParticipantPaid", "crdr": "debit", "calculation": { "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500ReconciliationofBenefitsPaidandDecreaseinNetAssetsDetails": { "parentTag": "us-gaap-ebp_EmployeeBenefitPlanForm5500CaptionPaymentToParticipant", "weight": -1.0, "order": 3.0 } }, "presentation": [ "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500ReconciliationofBenefitsPaidandDecreaseinNetAssetsDetails" ], "lang": { "en-us": { "role": { "negatedTerseLabel": "Less: Prior year amounts allocated to withdrawing participants", "label": "EBP, Reconciliation to Form 5500, Payment to Participant, Decrease from Allocation to Withdrawing Participant, Paid", "documentation": "Amount of decrease in benefit payment from amount allocated in prior period, but paid in current period, to participant electing to withdraw from employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) to reconcile benefit payment per financial statement to Form 5500 caption. Form 5500 is form provided by Department of the Treasury, Internal Revenue Service (IRS); Department of Labor (DOL), Employee Benefit Security Administration (EBSA); and Pension Benefit Guaranty Corporation (PBGC)." } } }, "auth_ref": [ "r144", "r186" ] }, "us-gaap-ebp_EmployeeBenefitPlanReconciliationToForm5500PaymentToParticipantIncreaseForAllocationToWithdrawingParticipantNotYetPaid": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanReconciliationToForm5500PaymentToParticipantIncreaseForAllocationToWithdrawingParticipantNotYetPaid", "crdr": "credit", "calculation": { "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500ReconciliationofBenefitsPaidandDecreaseinNetAssetsDetails": { "parentTag": "us-gaap-ebp_EmployeeBenefitPlanForm5500CaptionPaymentToParticipant", "weight": 1.0, "order": 2.0 } }, "presentation": [ "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500ReconciliationofBenefitsPaidandDecreaseinNetAssetsDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Add: Amounts allocated to withdrawing participants and accrued on Form 5500", "label": "EBP, Reconciliation to Form 5500, Payment to Participant, Increase from Allocation to Withdrawing Participant, Not yet Paid", "documentation": "Amount of increase in benefit payment from amount allocated, but not yet paid, in current period to participant electing to withdraw from employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) to reconcile benefit payment per financial statement to Form 5500 caption. Form 5500 is form provided by Department of the Treasury, Internal Revenue Service (IRS); Department of Labor (DOL), Employee Benefit Security Administration (EBSA); and Pension Benefit Guaranty Corporation (PBGC)." } } }, "auth_ref": [ "r144", "r186" ] }, "us-gaap-ebp_EmployeeBenefitPlanReconciliationToForm5500Table": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanReconciliationToForm5500Table", "presentation": [ "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500", "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500ReconciliationofBenefitsPaidandDecreaseinNetAssetsDetails", "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500ReconciliationofNetAssetsAvailableforBenefitDetails", "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500Tables" ], "lang": { "en-us": { "role": { "terseLabel": "EBP, Reconciliation of Financial Statement to Form 5500 [Table]", "label": "EBP, Reconciliation of Financial Statement to Form 5500 [Table]", "documentation": "Disclosure of information about reconciliation of financial statement to Form 5500 for employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Form 5500 is form provided by Department of the Treasury, Internal Revenue Service (IRS); Department of Labor (DOL), Employee Benefit Security Administration (EBSA); and Pension Benefit Guaranty Corporation (PBGC)." } } }, "auth_ref": [ "r186" ] }, "us-gaap-ebp_EmployeeBenefitPlanReconciliationToForm5500TableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanReconciliationToForm5500TableTextBlock", "presentation": [ "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500Tables" ], "lang": { "en-us": { "role": { "terseLabel": "Schedule of Reconciliation of Net Assets Available for Benefits per the Financial Statements to Form 5500", "label": "EBP, Reconciliation of Financial Statement to Form 5500 [Table Text Block]", "documentation": "Tabular disclosure of reconciliation of financial statement to Form 5500 for employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Form 5500 is form provided by Department of the Treasury, Internal Revenue Service (IRS); Department of Labor (DOL), Employee Benefit Security Administration (EBSA); and Pension Benefit Guaranty Corporation (PBGC)." } } }, "auth_ref": [ "r144" ] }, "us-gaap-ebp_EmployeeBenefitPlanReconciliationToForm5500TextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanReconciliationToForm5500TextBlock", "presentation": [ "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500" ], "lang": { "en-us": { "role": { "terseLabel": "Reconciliation of Financial Statements to Form 5500", "label": "EBP, Reconciliation of Financial Statement to Form 5500 [Text Block]", "documentation": "The entire disclosure for reconciliation of financial statement to Form 5500 for employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Form 5500 is form provided by Department of the Treasury, Internal Revenue Service (IRS); Department of Labor (DOL), Employee Benefit Security Administration (EBSA); and Pension Benefit Guaranty Corporation (PBGC)." } } }, "auth_ref": [ "r64", "r144" ] }, "us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "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/2026", "localname": "EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsLineItems", "presentation": [ "http://www.mmc.com/role/ExemptPartyinInterestTransactions", "http://www.mmc.com/role/ExemptPartyinInterestTransactionsDetails" ], "lang": { "en-us": { "role": { "terseLabel": "EBP, Related Party and Party-in-Interest Transactions [Line Items]", "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": [ "r48", "r187", "r197" ] }, "us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsTable": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsTable", "presentation": [ "http://www.mmc.com/role/ExemptPartyinInterestTransactions", "http://www.mmc.com/role/ExemptPartyinInterestTransactionsDetails" ], "lang": { "en-us": { "role": { "terseLabel": "EBP, Related Party and Party-in-Interest Transactions [Table]", "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": [ "r48", "r187", "r197" ] }, "us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsTextBlock", "presentation": [ "http://www.mmc.com/role/ExemptPartyinInterestTransactions" ], "lang": { "en-us": { "role": { "terseLabel": "Exempt Party in Interest Transactions", "label": "EBP, Related Party and Party-in-Interest Transactions [Text Block]", "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": [ "r45", "r46", "r47", "r48", "r144" ] }, "us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "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/2026", "localname": "EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems", "presentation": [ "http://www.mmc.com/role/SCHEDULEHPARTIVLINE4iSCHEDULEOFASSETSHELDATENDOFYEAR", "http://www.mmc.com/role/SCHEDULEHPARTIVLINE4iSCHEDULEOFASSETSHELDATENDOFYEARDetails" ], "lang": { "en-us": { "role": { "terseLabel": "EBP, Schedule of Asset Held for Investment [Line Items]", "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": [ "r95", "r155", "r156", "r157", "r158" ] }, "us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTable": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTable", "presentation": [ "http://www.mmc.com/role/SCHEDULEHPARTIVLINE4iSCHEDULEOFASSETSHELDATENDOFYEAR", "http://www.mmc.com/role/SCHEDULEHPARTIVLINE4iSCHEDULEOFASSETSHELDATENDOFYEARDetails" ], "lang": { "en-us": { "role": { "terseLabel": "EBP, Schedule of Asset Held for Investment [Table]", "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": [ "r95", "r155", "r156", "r157", "r158" ] }, "us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTableTextBlock", "presentation": [ "http://www.mmc.com/role/SCHEDULEHPARTIVLINE4iSCHEDULEOFASSETSHELDATENDOFYEAR" ], "lang": { "en-us": { "role": { "terseLabel": "SCHEDULE H, PART IV, LINE 4i SCHEDULE OF ASSETS (HELD AT END OF YEAR)", "label": "EBP, Schedule of Asset Held for Investment [Text Block]", "documentation": "The entire disclosure for schedule of asset held for investment for employee stock purchase, saving, or similar plan (employee benefit plan (EBP))." } } }, "auth_ref": [ "r154", "r194" ] }, "us-gaap-ebp_EmployeeBenefitPlanStatementOfChangeInNetAssetAvailableForBenefitAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "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/2026", "localname": "EmployeeBenefitPlanStatementOfChangeInNetAssetAvailableForBenefitLineItems", "presentation": [ "http://www.mmc.com/role/STATEMENTOFCHANGESINNETASSETSAVAILABLEFORBENEFITS" ], "lang": { "en-us": { "role": { "terseLabel": "EBP, Statement of Change in Net Asset Available for Benefit [Line Items]", "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": [ "r86", "r87", "r88", "r103" ] }, "us-gaap-ebp_EmployeeBenefitPlanStatementOfChangeInNetAssetAvailableForBenefitTable": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanStatementOfChangeInNetAssetAvailableForBenefitTable", "presentation": [ "http://www.mmc.com/role/STATEMENTOFCHANGESINNETASSETSAVAILABLEFORBENEFITS" ], "lang": { "en-us": { "role": { "terseLabel": "EBP, Statement of Change in Net Asset Available for Benefit [Table]", "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": [ "r86", "r87", "r88", "r103" ] }, "us-gaap-ebp_EmployeeBenefitPlanStatementOfNetAssetAvailableForBenefitAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "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/2026", "localname": "EmployeeBenefitPlanStatementOfNetAssetAvailableForBenefitLineItems", "presentation": [ "http://www.mmc.com/role/STATEMENTSOFNETASSETSAVAILABLEFORBENEFITS" ], "lang": { "en-us": { "role": { "terseLabel": "EBP, Statement of Net Asset Available for Benefit [Line Items]", "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": [ "r70", "r71", "r72", "r73", "r74", "r75", "r77", "r78", "r79", "r80", "r101", "r103", "r120", "r121", "r122", "r123", "r124", "r125", "r126", "r127", "r128", "r129" ] }, "us-gaap-ebp_EmployeeBenefitPlanStatementOfNetAssetAvailableForBenefitTable": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanStatementOfNetAssetAvailableForBenefitTable", "presentation": [ "http://www.mmc.com/role/STATEMENTSOFNETASSETSAVAILABLEFORBENEFITS" ], "lang": { "en-us": { "role": { "terseLabel": "EBP, Statement of Net Asset Available for Benefit [Table]", "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": [ "r70", "r71", "r72", "r73", "r74", "r75", "r77", "r78", "r79", "r80", "r101", "r103", "r120", "r121", "r122", "r123", "r124", "r125", "r126", "r127", "r128" ] }, "us-gaap-ebp_EmployeeBenefitPlanSubsequentEventTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanSubsequentEventTextBlock", "presentation": [ "http://www.mmc.com/role/SubsequentEvents" ], "lang": { "en-us": { "role": { "terseLabel": "Subsequent Events", "label": "EBP, Subsequent Event [Text Block]", "documentation": "The entire disclosure for subsequent event in financial statement of employee stock purchase, saving, or similar plan (employee benefit plan (EBP))." } } }, "auth_ref": [ "r49", "r51", "r187", "r197" ] }, "us-gaap-ebp_EmployeeBenefitPlanSummaryOfAccountingPolicyTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanSummaryOfAccountingPolicyTextBlock", "presentation": [ "http://www.mmc.com/role/SummaryofSignificantAccountingPolicies" ], "lang": { "en-us": { "role": { "terseLabel": "Summary of Significant Accounting Policies", "label": "EBP, Summary of Accounting Policy [Text Block]", "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", "r144" ] }, "us-gaap-ebp_EmployeeBenefitPlanTaxStatusAbstract": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "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/2026", "localname": "EmployeeBenefitPlanTaxStatusLineItems", "presentation": [ "http://www.mmc.com/role/FederalIncomeTaxStatus" ], "lang": { "en-us": { "role": { "terseLabel": "EBP, Tax Status [Line Items]", "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": [ "r185" ] }, "us-gaap-ebp_EmployeeBenefitPlanTaxStatusTable": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanTaxStatusTable", "presentation": [ "http://www.mmc.com/role/FederalIncomeTaxStatus" ], "lang": { "en-us": { "role": { "terseLabel": "EBP, Tax Status [Table]", "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": [ "r185" ] }, "us-gaap-ebp_EmployeeBenefitPlanTaxStatusTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanTaxStatusTextBlock", "presentation": [ "http://www.mmc.com/role/FederalIncomeTaxStatus" ], "lang": { "en-us": { "role": { "terseLabel": "Federal Income Tax Status", "label": "EBP, Tax Status [Text Block]", "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": [ "r63", "r68", "r144" ] }, "us-gaap-ebp_EmployeeBenefitPlanUseOfEstimatePolicyTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://fasb.org/us-gaap-ebp/2026", "localname": "EmployeeBenefitPlanUseOfEstimatePolicyTextBlock", "presentation": [ "http://www.mmc.com/role/SummaryofSignificantAccountingPoliciesPolicies" ], "lang": { "en-us": { "role": { "terseLabel": "Use of Estimates", "label": "EBP, Use of Estimate [Policy Text Block]", "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", "r144" ] }, "dei_EntityCentralIndexKey": { "xbrltype": "centralIndexKeyItemType", "nsuri": "http://xbrl.sec.gov/dei/2026", "localname": "EntityCentralIndexKey", "presentation": [ "http://www.mmc.com/role/Cover" ], "lang": { "en-us": { "role": { "terseLabel": "Entity Central Index Key", "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": [ "r146" ] }, "dei_EntityDomain": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/dei/2026", "localname": "EntityDomain", "presentation": [ "http://www.mmc.com/role/Cover", "http://www.mmc.com/role/DescriptionofthePlan", "http://www.mmc.com/role/DescriptionofthePlanDetails", "http://www.mmc.com/role/ExemptPartyinInterestTransactions", "http://www.mmc.com/role/ExemptPartyinInterestTransactionsDetails", "http://www.mmc.com/role/FairValueMeasurements", "http://www.mmc.com/role/FairValueMeasurementsDetails", "http://www.mmc.com/role/FairValueMeasurementsTables", "http://www.mmc.com/role/FederalIncomeTaxStatus", "http://www.mmc.com/role/InterestinMasterTrust", "http://www.mmc.com/role/InterestinMasterTrustNarrativeDetails", "http://www.mmc.com/role/InterestinMasterTrustScheduleofMasterTrustNetAssetsDetails", "http://www.mmc.com/role/InterestinMasterTrustScheduleofNetInvestmentGainDetails", "http://www.mmc.com/role/InterestinMasterTrustTables", "http://www.mmc.com/role/NetAssetValueNAVPerShare", "http://www.mmc.com/role/NetAssetValueNAVPerShareDetails", "http://www.mmc.com/role/NetAssetValueNAVPerShareTables", "http://www.mmc.com/role/NetTransferstoOtherPlan", "http://www.mmc.com/role/NetTransferstoOtherPlanDetails", "http://www.mmc.com/role/PlanTermination", "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500", "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500ReconciliationofBenefitsPaidandDecreaseinNetAssetsDetails", "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500ReconciliationofNetAssetsAvailableforBenefitDetails", "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500Tables", "http://www.mmc.com/role/SCHEDULEHPARTIVLINE4iSCHEDULEOFASSETSHELDATENDOFYEAR", "http://www.mmc.com/role/SCHEDULEHPARTIVLINE4iSCHEDULEOFASSETSHELDATENDOFYEARDetails", "http://www.mmc.com/role/STATEMENTOFCHANGESINNETASSETSAVAILABLEFORBENEFITS", "http://www.mmc.com/role/STATEMENTSOFNETASSETSAVAILABLEFORBENEFITS", "http://www.mmc.com/role/SubsequentEvents", "http://www.mmc.com/role/SummaryofSignificantAccountingPolicies", "http://www.mmc.com/role/SummaryofSignificantAccountingPoliciesDetails", "http://www.mmc.com/role/SummaryofSignificantAccountingPoliciesPolicies" ], "lang": { "en-us": { "role": { "terseLabel": "Entity [Domain]", "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/2026", "localname": "EntityRegistrantName", "presentation": [ "http://www.mmc.com/role/Cover" ], "lang": { "en-us": { "role": { "terseLabel": "Entity Registrant Name", "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": [ "r146" ] }, "dei_EntityTaxIdentificationNumber": { "xbrltype": "employerIdItemType", "nsuri": "http://xbrl.sec.gov/dei/2026", "localname": "EntityTaxIdentificationNumber", "presentation": [ "http://www.mmc.com/role/SCHEDULEHPARTIVLINE4iSCHEDULEOFASSETSHELDATENDOFYEARDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Entity tax identification number", "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": [ "r146" ] }, "us-gaap_EquityFundsMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2026", "localname": "EquityFundsMember", "presentation": [ "http://www.mmc.com/role/FairValueMeasurementsDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Value funds", "label": "Equity Funds [Member]" } } }, "auth_ref": [ "r194", "r198", "r201", "r205" ] }, "mrsh_EquitySecuritiesCapitalGroupEUPACTrustMember": { "xbrltype": "domainItemType", "nsuri": "http://www.mmc.com/20260622", "localname": "EquitySecuritiesCapitalGroupEUPACTrustMember", "presentation": [ "http://www.mmc.com/role/NetAssetValueNAVPerShareDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Capital Group EUPAC Trust", "label": "Equity Securities, Capital Group EUPAC Trust [Member]", "documentation": "Equity Securities, Capital Group EUPAC Trust" } } }, "auth_ref": [] }, "mrsh_EquitySecuritiesNonUSEquityIndexFundMember": { "xbrltype": "domainItemType", "nsuri": "http://www.mmc.com/20260622", "localname": "EquitySecuritiesNonUSEquityIndexFundMember", "presentation": [ "http://www.mmc.com/role/NetAssetValueNAVPerShareDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Non-U.S. Equity Index Fund", "label": "Equity Securities, Non-US Equity Index Fund [Member]", "documentation": "Equity Securities, Non-US Equity Index Fund" } } }, "auth_ref": [] }, "mrsh_EquitySecuritiesPutnamLargeCapValueTrustMember": { "xbrltype": "domainItemType", "nsuri": "http://www.mmc.com/20260622", "localname": "EquitySecuritiesPutnamLargeCapValueTrustMember", "presentation": [ "http://www.mmc.com/role/NetAssetValueNAVPerShareDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Putnam Large Cap Value Trust", "label": "Equity Securities, Putnam Large Cap Value Trust [Member]", "documentation": "Equity Securities, Putnam Large Cap Value Trust" } } }, "auth_ref": [] }, "mrsh_EquitySecuritiesSP500IndexFundMember": { "xbrltype": "domainItemType", "nsuri": "http://www.mmc.com/20260622", "localname": "EquitySecuritiesSP500IndexFundMember", "presentation": [ "http://www.mmc.com/role/NetAssetValueNAVPerShareDetails" ], "lang": { "en-us": { "role": { "terseLabel": "S&P 500 Index Fund", "label": "Equity Securities, S&P 500 Index Fund [Member]", "documentation": "Equity Securities, S&P 500 Index Fund" } } }, "auth_ref": [] }, "mrsh_EquitySecuritiesTRoweBlueChipGrowthTrustFundMember": { "xbrltype": "domainItemType", "nsuri": "http://www.mmc.com/20260622", "localname": "EquitySecuritiesTRoweBlueChipGrowthTrustFundMember", "presentation": [ "http://www.mmc.com/role/NetAssetValueNAVPerShareDetails" ], "lang": { "en-us": { "role": { "terseLabel": "T. Rowe Blue Chip Growth Trust", "label": "Equity Securities, T Rowe Blue Chip Growth Trust Fund [Member]", "documentation": "Equity Securities, T Rowe Blue Chip Growth Trust Fund" } } }, "auth_ref": [] }, "mrsh_EquitySecuritiesTRoweSmallMidCapCoreTrustMember": { "xbrltype": "domainItemType", "nsuri": "http://www.mmc.com/20260622", "localname": "EquitySecuritiesTRoweSmallMidCapCoreTrustMember", "presentation": [ "http://www.mmc.com/role/NetAssetValueNAVPerShareDetails" ], "lang": { "en-us": { "role": { "terseLabel": "T. Rowe Small Mid Cap Core Trust", "label": "Equity Securities, T Rowe Small Mid Cap Core Trust [Member]", "documentation": "Equity Securities, T Rowe Small Mid Cap Core Trust" } } }, "auth_ref": [] }, "mrsh_EquitySecuritiesUSExtendedEquityMarketIndexFundMember": { "xbrltype": "domainItemType", "nsuri": "http://www.mmc.com/20260622", "localname": "EquitySecuritiesUSExtendedEquityMarketIndexFundMember", "presentation": [ "http://www.mmc.com/role/NetAssetValueNAVPerShareDetails" ], "lang": { "en-us": { "role": { "terseLabel": "U.S. Extended Equity Market Index Fund", "label": "Equity Securities, US Extended Equity Market Index Fund [Member]", "documentation": "Equity Securities, US Extended Equity Market Index Fund" } } }, "auth_ref": [] }, "us-gaap_FairValueByFairValueHierarchyLevelAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2026", "localname": "FairValueByFairValueHierarchyLevelAxis", "presentation": [ "http://www.mmc.com/role/FairValueMeasurementsDetails", "http://www.mmc.com/role/NetAssetValueNAVPerShareDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Fair Value Hierarchy and NAV [Axis]", "label": "Fair Value Hierarchy and NAV [Axis]" } } }, "auth_ref": [ "r25", "r26", "r27", "r28", "r32", "r33", "r35", "r102", "r144" ] }, "us-gaap_FairValueInputsLevel1Member": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2026", "localname": "FairValueInputsLevel1Member", "presentation": [ "http://www.mmc.com/role/FairValueMeasurementsDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Quoted Prices in Active Markets for Identical Assets (Level 1)", "label": "Fair Value, Inputs, Level 1 [Member]" } } }, "auth_ref": [ "r25", "r32", "r130", "r144" ] }, "us-gaap_FairValueInputsLevel2Member": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2026", "localname": "FairValueInputsLevel2Member", "presentation": [ "http://www.mmc.com/role/FairValueMeasurementsDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Significant Other Observable Inputs (Level 2)", "label": "Fair Value, Inputs, Level 2 [Member]" } } }, "auth_ref": [ "r25", "r26", "r32", "r130", "r144" ] }, "us-gaap_FairValueInputsLevel3Member": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2026", "localname": "FairValueInputsLevel3Member", "presentation": [ "http://www.mmc.com/role/FairValueMeasurementsDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Significant Unobservable Inputs (Level 3)", "label": "Fair Value, Inputs, Level 3 [Member]" } } }, "auth_ref": [ "r25", "r26", "r27", "r28", "r32", "r33", "r130", "r144" ] }, "us-gaap_FairValueMeasuredAtNetAssetValuePerShareMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2026", "localname": "FairValueMeasuredAtNetAssetValuePerShareMember", "presentation": [ "http://www.mmc.com/role/FairValueMeasurementsDetails", "http://www.mmc.com/role/NetAssetValueNAVPerShareDetails" ], "lang": { "en-us": { "role": { "terseLabel": "NAV", "label": "Fair Value Measured at Net Asset Value Per Share [Member]" } } }, "auth_ref": [ "r35", "r130" ] }, "us-gaap_FairValueMeasurementsFairValueHierarchyDomain": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2026", "localname": "FairValueMeasurementsFairValueHierarchyDomain", "presentation": [ "http://www.mmc.com/role/FairValueMeasurementsDetails", "http://www.mmc.com/role/NetAssetValueNAVPerShareDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Fair Value Hierarchy and NAV [Domain]", "label": "Fair Value Hierarchy and NAV [Domain]" } } }, "auth_ref": [ "r25", "r26", "r27", "r28", "r32", "r33", "r35", "r102", "r144" ] }, "mrsh_FixedIncomeInvestmentsLoomisSaylesCorePlusFixedIncomeFundMember": { "xbrltype": "domainItemType", "nsuri": "http://www.mmc.com/20260622", "localname": "FixedIncomeInvestmentsLoomisSaylesCorePlusFixedIncomeFundMember", "presentation": [ "http://www.mmc.com/role/NetAssetValueNAVPerShareDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Loomis Sayles Core Plus Fixed Income Fund", "label": "Fixed Income Investments, Loomis Sayles Core Plus Fixed Income Fund [Member]", "documentation": "Fixed Income Investments, Loomis Sayles Core Plus Fixed Income Fund" } } }, "auth_ref": [] }, "us-gaap_FixedIncomeInvestmentsMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2026", "localname": "FixedIncomeInvestmentsMember", "presentation": [ "http://www.mmc.com/role/InterestinMasterTrustScheduleofMasterTrustNetAssetsDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Stable Value Fund", "label": "Fixed Income Investments [Member]" } } }, "auth_ref": [ "r194", "r198", "r201", "r205" ] }, "mrsh_GovernmentAndCorporateBondsUSBondIndexFundMember": { "xbrltype": "domainItemType", "nsuri": "http://www.mmc.com/20260622", "localname": "GovernmentAndCorporateBondsUSBondIndexFundMember", "presentation": [ "http://www.mmc.com/role/NetAssetValueNAVPerShareDetails" ], "lang": { "en-us": { "role": { "terseLabel": "U.S. Bond Index Fund", "label": "Government And Corporate Bonds, US Bond Index Fund [Member]", "documentation": "Government And Corporate Bonds, US Bond Index Fund" } } }, "auth_ref": [] }, "mrsh_IndexFundTargetRetirementFundsMember": { "xbrltype": "domainItemType", "nsuri": "http://www.mmc.com/20260622", "localname": "IndexFundTargetRetirementFundsMember", "presentation": [ "http://www.mmc.com/role/NetAssetValueNAVPerShareDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Target retirement funds", "label": "Index Fund, Target Retirement Funds [Member]", "documentation": "Index Fund, Target Retirement Funds" } } }, "auth_ref": [] }, "us-gaap_InvestmentIdentifierAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2026", "localname": "InvestmentIdentifierAxis", "presentation": [ "http://www.mmc.com/role/SCHEDULEHPARTIVLINE4iSCHEDULEOFASSETSHELDATENDOFYEARDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Investment, Identifier [Axis]", "label": "Investment, Identifier [Axis]" } } }, "auth_ref": [ "r95", "r155", "r156", "r157", "r158", "r160", "r161", "r162", "r163", "r164", "r165", "r167", "r168", "r169", "r170", "r171", "r172", "r173", "r175", "r176", "r177", "r178", "r179" ] }, "us-gaap_InvestmentTypeAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2026", "localname": "InvestmentTypeAxis", "presentation": [ "http://www.mmc.com/role/ExemptPartyinInterestTransactionsDetails", "http://www.mmc.com/role/FairValueMeasurementsDetails", "http://www.mmc.com/role/InterestinMasterTrustScheduleofMasterTrustNetAssetsDetails", "http://www.mmc.com/role/InterestinMasterTrustScheduleofNetInvestmentGainDetails", "http://www.mmc.com/role/NetAssetValueNAVPerShareDetails", "http://www.mmc.com/role/STATEMENTSOFNETASSETSAVAILABLEFORBENEFITS", "http://www.mmc.com/role/SummaryofSignificantAccountingPoliciesDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Investment Type [Axis]", "label": "Investment Type [Axis]" } } }, "auth_ref": [ "r11", "r12", "r13", "r14", "r15", "r16", "r17", "r18", "r19", "r20", "r21", "r24", "r25", "r26", "r27", "r28", "r32", "r33", "r35", "r36", "r37", "r38", "r39", "r40", "r41", "r66", "r70", "r71", "r72", "r73", "r74", "r75", "r82", "r86", "r87", "r88", "r89", "r95", "r101", "r107", "r113", "r115", "r119", "r120", "r121", "r122", "r123", "r124", "r125", "r126", "r127", "r128", "r129", "r132", "r133", "r134", "r135", "r136", "r137", "r138", "r139", "r140", "r144", "r145", "r158", "r180", "r195" ] }, "us-gaap_InvestmentTypeCategorizationMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2026", "localname": "InvestmentTypeCategorizationMember", "presentation": [ "http://www.mmc.com/role/ExemptPartyinInterestTransactionsDetails", "http://www.mmc.com/role/FairValueMeasurementsDetails", "http://www.mmc.com/role/InterestinMasterTrustScheduleofMasterTrustNetAssetsDetails", "http://www.mmc.com/role/InterestinMasterTrustScheduleofNetInvestmentGainDetails", "http://www.mmc.com/role/NetAssetValueNAVPerShareDetails", "http://www.mmc.com/role/STATEMENTSOFNETASSETSAVAILABLEFORBENEFITS", "http://www.mmc.com/role/SummaryofSignificantAccountingPoliciesDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Investments [Domain]", "label": "Investments [Domain]" } } }, "auth_ref": [ "r11", "r12", "r13", "r14", "r15", "r16", "r17", "r18", "r19", "r20", "r21", "r24", "r25", "r26", "r27", "r28", "r32", "r33", "r35", "r36", "r37", "r38", "r39", "r40", "r41", "r66", "r70", "r71", "r72", "r73", "r74", "r75", "r82", "r86", "r87", "r88", "r89", "r95", "r101", "r107", "r113", "r115", "r119", "r120", "r121", "r122", "r123", "r124", "r125", "r126", "r127", "r128", "r129", "r132", "r133", "r134", "r135", "r136", "r137", "r138", "r139", "r140", "r144", "r145", "r158", "r180", "r195" ] }, "dei_LegalEntityAxis": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/dei/2026", "localname": "LegalEntityAxis", "presentation": [ "http://www.mmc.com/role/Cover", "http://www.mmc.com/role/DescriptionofthePlan", "http://www.mmc.com/role/DescriptionofthePlanDetails", "http://www.mmc.com/role/ExemptPartyinInterestTransactions", "http://www.mmc.com/role/ExemptPartyinInterestTransactionsDetails", "http://www.mmc.com/role/FairValueMeasurements", "http://www.mmc.com/role/FairValueMeasurementsDetails", "http://www.mmc.com/role/FairValueMeasurementsTables", "http://www.mmc.com/role/FederalIncomeTaxStatus", "http://www.mmc.com/role/InterestinMasterTrust", "http://www.mmc.com/role/InterestinMasterTrustNarrativeDetails", "http://www.mmc.com/role/InterestinMasterTrustScheduleofMasterTrustNetAssetsDetails", "http://www.mmc.com/role/InterestinMasterTrustScheduleofNetInvestmentGainDetails", "http://www.mmc.com/role/InterestinMasterTrustTables", "http://www.mmc.com/role/NetAssetValueNAVPerShare", "http://www.mmc.com/role/NetAssetValueNAVPerShareDetails", "http://www.mmc.com/role/NetAssetValueNAVPerShareTables", "http://www.mmc.com/role/NetTransferstoOtherPlan", "http://www.mmc.com/role/NetTransferstoOtherPlanDetails", "http://www.mmc.com/role/PlanTermination", "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500", "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500ReconciliationofBenefitsPaidandDecreaseinNetAssetsDetails", "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500ReconciliationofNetAssetsAvailableforBenefitDetails", "http://www.mmc.com/role/ReconciliationofFinancialStatementstoForm5500Tables", "http://www.mmc.com/role/SCHEDULEHPARTIVLINE4iSCHEDULEOFASSETSHELDATENDOFYEAR", "http://www.mmc.com/role/SCHEDULEHPARTIVLINE4iSCHEDULEOFASSETSHELDATENDOFYEARDetails", "http://www.mmc.com/role/STATEMENTOFCHANGESINNETASSETSAVAILABLEFORBENEFITS", "http://www.mmc.com/role/STATEMENTSOFNETASSETSAVAILABLEFORBENEFITS", "http://www.mmc.com/role/SubsequentEvents", "http://www.mmc.com/role/SummaryofSignificantAccountingPolicies", "http://www.mmc.com/role/SummaryofSignificantAccountingPoliciesDetails", "http://www.mmc.com/role/SummaryofSignificantAccountingPoliciesPolicies" ], "lang": { "en-us": { "role": { "terseLabel": "Legal Entity [Axis]", "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/2026", "localname": "MaximumMember", "presentation": [ "http://www.mmc.com/role/DescriptionofthePlanDetails", "http://www.mmc.com/role/SCHEDULEHPARTIVLINE4iSCHEDULEOFASSETSHELDATENDOFYEARDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Maximum", "label": "Maximum [Member]" } } }, "auth_ref": [ "r28", "r144", "r158", "r194" ] }, "srt_MinimumMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/srt/2026", "localname": "MinimumMember", "presentation": [ "http://www.mmc.com/role/DescriptionofthePlanDetails", "http://www.mmc.com/role/SCHEDULEHPARTIVLINE4iSCHEDULEOFASSETSHELDATENDOFYEARDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Minimum", "label": "Minimum [Member]" } } }, "auth_ref": [ "r28", "r144", "r158", "r194" ] }, "us-gaap_MoneyMarketFundsMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2026", "localname": "MoneyMarketFundsMember", "presentation": [ "http://www.mmc.com/role/ExemptPartyinInterestTransactionsDetails", "http://www.mmc.com/role/FairValueMeasurementsDetails", "http://www.mmc.com/role/InterestinMasterTrustScheduleofMasterTrustNetAssetsDetails", "http://www.mmc.com/role/STATEMENTSOFNETASSETSAVAILABLEFORBENEFITS" ], "lang": { "en-us": { "role": { "terseLabel": "Short-term investment fund at fair value", "verboseLabel": "Short-term investment fund", "label": "Money Market Funds [Member]" } } }, "auth_ref": [ "r194", "r198", "r201", "r205" ] }, "us-gaap_MutualFundMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2026", "localname": "MutualFundMember", "presentation": [ "http://www.mmc.com/role/FairValueMeasurementsDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Mutual funds:", "label": "Mutual Fund [Member]" } } }, "auth_ref": [ "r120", "r131", "r132", "r141", "r144", "r145" ] }, "mrsh_MutualFundsAndCommonCollectiveTrustMember": { "xbrltype": "domainItemType", "nsuri": "http://www.mmc.com/20260622", "localname": "MutualFundsAndCommonCollectiveTrustMember", "presentation": [ "http://www.mmc.com/role/STATEMENTSOFNETASSETSAVAILABLEFORBENEFITS", "http://www.mmc.com/role/SummaryofSignificantAccountingPoliciesDetails" ], "lang": { "en-us": { "role": { "verboseLabel": "Plan identified investments held by master trust at fair value (Notes 2 and 4)", "terseLabel": "Common collective trusts", "label": "Mutual Funds And Common Collective Trust [Member]", "documentation": "Mutual Funds And Common Collective Trust" } } }, "auth_ref": [] }, "srt_RangeAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/srt/2026", "localname": "RangeAxis", "presentation": [ "http://www.mmc.com/role/DescriptionofthePlanDetails", "http://www.mmc.com/role/SCHEDULEHPARTIVLINE4iSCHEDULEOFASSETSHELDATENDOFYEARDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Statistical Measurement [Axis]", "label": "Statistical Measurement [Axis]" } } }, "auth_ref": [ "r28", "r144", "r158", "r194" ] }, "srt_RangeMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/srt/2026", "localname": "RangeMember", "presentation": [ "http://www.mmc.com/role/DescriptionofthePlanDetails", "http://www.mmc.com/role/SCHEDULEHPARTIVLINE4iSCHEDULEOFASSETSHELDATENDOFYEARDetails" ], "lang": { "en-us": { "role": { "terseLabel": "Statistical Measurement [Domain]", "label": "Statistical Measurement [Domain]" } } }, "auth_ref": [ "r28", "r144", "r158", "r194" ] } } } }, "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": "2", "Subparagraph": "(h)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2" }, "r31": { "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" }, "r32": { "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" }, "r33": { "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" }, "r34": { "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" }, "r35": { "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" }, "r36": { "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" }, "r37": { "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" }, "r38": { "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" }, "r39": { "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" }, "r40": { "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" }, "r41": { "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" }, "r42": { "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" }, "r43": { "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" }, "r44": { "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" }, "r45": { "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" }, "r46": { "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" }, "r47": { "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" }, "r48": { "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" }, "r49": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "855", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483399/855-10-50-2" }, "r50": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "855", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483399/855-10-50-2" }, "r51": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "855", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483399/855-10-50-3" }, "r52": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "962", "SubTopic": "205", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "10", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477063/962-205-45-10" }, "r53": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "962", "SubTopic": "205", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "2", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477063/962-205-45-2" }, "r54": { "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" }, "r55": { "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" }, "r56": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "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" }, "r57": { "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" }, "r58": { "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" }, "r59": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "962", "SubTopic": "205", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "8", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477063/962-205-45-8" }, "r60": { "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" }, "r61": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "962", "SubTopic": "205", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478416/962-205-50-1" }, "r62": { "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" }, "r63": { "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" }, "r64": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "962", "SubTopic": "205", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(i)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478416/962-205-50-1" }, "r65": { "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" }, "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-02(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-02(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-02(c))", "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-02(d))", "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(1))", "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-03(2)(a))", "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-03(2)(b)(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-03(2)(b)(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-03(2))", "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-03(3))", "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-03(4))", "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-03(6)(a))", "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-03(6)(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-03(7)(a))", "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-03(7)(b))", "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-03(9))", "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(1)(a)(1))", "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-04(1)(a)(2))", "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-04(1)(a))", "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-04(1)(b))", "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": "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" }, "r87": { "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" }, "r88": { "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" }, "r89": { "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" }, "r90": { "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" }, "r91": { "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" }, "r92": { "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" }, "r93": { "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" }, "r94": { "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" }, "r95": { "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" }, "r96": { "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" }, "r97": { "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" }, "r98": { "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" }, "r99": { "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" }, "r100": { "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" }, "r101": { "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" }, "r102": { "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" }, "r103": { "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" }, "r104": { "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" }, "r105": { "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" }, "r106": { "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" }, "r107": { "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" }, "r108": { "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" }, "r109": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "962", "SubTopic": "325", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477783/962-325-50-7" }, "r110": { "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" }, "r111": { "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" }, "r112": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "962", "SubTopic": "325", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "8", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477783/962-325-50-8" }, "r113": { "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" }, "r114": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "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" }, "r115": { "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" }, "r116": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "962", "SubTopic": "325", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "8C", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477783/962-325-50-8C" }, "r117": { "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" }, "r118": { "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" }, "r119": { "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" }, "r120": { "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" }, "r121": { "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" }, "r122": { "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" }, "r123": { "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" }, "r124": { "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" }, "r125": { "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" }, "r126": { "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" }, "r127": { "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" }, "r128": { "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" }, "r129": { "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" }, "r130": { "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" }, "r131": { "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" }, "r132": { "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" }, "r133": { "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" }, "r134": { "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" }, "r135": { "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" }, "r136": { "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" }, "r137": { "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" }, "r138": { "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" }, "r139": { "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" }, "r140": { "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" }, "r141": { "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" }, "r142": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "962", "SubTopic": "325", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "8C", "Subparagraph": "(e)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477783/962-325-50-8C" }, "r143": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "962", "SubTopic": "325", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "8C", "Subparagraph": "(f)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477783/962-325-50-8C" }, "r144": { "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" }, "r145": { "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" }, "r146": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Exchange Act", "Number": "240", "Section": "12", "Subsection": "b-2" }, "r147": { "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" }, "r148": { "role": "http://www.xbrl.org/2003/role/recommendedDisclosureRef", "Topic": "855", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483399/855-10-50-3" }, "r149": { "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" }, "r150": { "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" }, "r151": { "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" }, "r152": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Name": "Employee Retirement Income Security Act of 1974", "Number": "2520", "Section": "103", "Subsection": "1", "Paragraph": "b", "Subparagraph": "(3)", "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": "10", "Paragraph": "b", "Subparagraph": "(1)", "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": "10", "Paragraph": "b", "Subparagraph": "(1)(i)", "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": "10", "Paragraph": "b", "Subparagraph": "(1)(i)(A)", "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": "10", "Paragraph": "b", "Subparagraph": "(1)(i)(B)", "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": "10", "Paragraph": "b", "Subparagraph": "(1)(i)(C)", "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": "10", "Paragraph": "b", "Subparagraph": "(1)(i)(D)", "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": "10", "Paragraph": "b", "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": "10", "Paragraph": "b", "Subparagraph": "(2)(i)(A)", "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": "10", "Paragraph": "b", "Subparagraph": "(2)(i)(B)", "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": "10", "Paragraph": "b", "Subparagraph": "(2)(i)(C)", "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": "10", "Paragraph": "b", "Subparagraph": "(2)(i)(D)", "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": "10", "Paragraph": "b", "Subparagraph": "(3)", "Publisher": "DOL-EBSA" }, "r165": { "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" }, "r166": { "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" }, "r167": { "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" }, "r168": { "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" }, "r169": { "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" }, "r170": { "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" }, "r171": { "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" }, "r172": { "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" }, "r173": { "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" }, "r174": { "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" }, "r175": { "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" }, "r176": { "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" }, "r177": { "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" }, "r178": { "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" }, "r179": { "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" }, "r180": { "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" }, "r181": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "962", "SubTopic": "205", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "4", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477063/962-205-45-4" }, "r182": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "962", "SubTopic": "205", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "7", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477063/962-205-45-7" }, "r183": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "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" }, "r184": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "962", "SubTopic": "205", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478416/962-205-50-1" }, "r185": { "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" }, "r186": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "962", "SubTopic": "205", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(i)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478416/962-205-50-1" }, "r187": { "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" }, "r188": { "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" }, "r189": { "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" }, "r190": { "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" }, "r191": { "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" }, "r192": { "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" }, "r193": { "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" }, "r194": { "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 I))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477804/962-205-S99-1" }, "r195": { "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" }, "r196": { "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 III))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477804/962-205-S99-1" }, "r197": { "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" }, "r198": { "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" }, "r199": { "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" }, "r200": { "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" }, "r201": { "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" }, "r202": { "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" }, "r203": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "962", "SubTopic": "325", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "7", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477783/962-325-50-7" }, "r204": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "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" }, "r205": { "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" }, "r206": { "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" }, "r207": { "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" }, "r208": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "962", "SubTopic": "325", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "8C", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477783/962-325-50-8C" } } }