3.26.1 html 262 240 1 false 63 0 false 7 false false R1.htm 995200090 - Document - Document and Entity Information Sheet http://www.wm.com/role/DocumentDocumentAndEntityInformation Document and Entity Information Cover 1 false false R2.htm 995200100 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS Sheet http://www.wm.com/role/StatementCondensedConsolidatedBalanceSheets CONDENSED CONSOLIDATED BALANCE SHEETS Statements 2 false false R3.htm 995200105 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) Sheet http://www.wm.com/role/StatementCondensedConsolidatedBalanceSheetsParenthetical CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) Statements 3 false false R4.htm 995200200 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS Sheet http://www.wm.com/role/StatementCondensedConsolidatedStatementsOfOperations CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS Statements 4 false false R5.htm 995200300 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME Sheet http://www.wm.com/role/StatementCondensedConsolidatedStatementsOfComprehensiveIncome CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME Statements 5 false false R6.htm 995200400 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS Sheet http://www.wm.com/role/StatementCondensedConsolidatedStatementsOfCashFlows CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS Statements 6 false false R7.htm 995200405 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) Sheet http://www.wm.com/role/StatementCondensedConsolidatedStatementsOfCashFlowsParenthetical CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) Statements 7 false false R8.htm 995200500 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY Sheet http://www.wm.com/role/StatementCondensedConsolidatedStatementsOfChangesInEquity CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY Statements 8 false false R9.htm 995200505 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Parenthetical) Sheet http://www.wm.com/role/StatementCondensedConsolidatedStatementsOfChangesInEquityParenthetical CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Parenthetical) Statements 9 false false R10.htm 995210101 - Disclosure - Basis of Presentation Sheet http://www.wm.com/role/DisclosureBasisOfPresentation Basis of Presentation Notes 10 false false R11.htm 995210201 - Disclosure - Landfill and Environmental Remediation Liabilities Sheet http://www.wm.com/role/DisclosureLandfillAndEnvironmentalRemediationLiabilities Landfill and Environmental Remediation Liabilities Notes 11 false false R12.htm 995210301 - Disclosure - Debt Sheet http://www.wm.com/role/DisclosureDebt Debt Notes 12 false false R13.htm 995210401 - Disclosure - Income Taxes Sheet http://www.wm.com/role/DisclosureIncomeTaxes Income Taxes Notes 13 false false R14.htm 995210501 - Disclosure - Earnings Per Share Sheet http://www.wm.com/role/DisclosureEarningsPerShare Earnings Per Share Notes 14 false false R15.htm 995210601 - Disclosure - Commitments and Contingencies Sheet http://www.wm.com/role/DisclosureCommitmentsAndContingencies Commitments and Contingencies Notes 15 false false R16.htm 995210701 - Disclosure - Segment and Related Information Sheet http://www.wm.com/role/DisclosureSegmentAndRelatedInformation Segment and Related Information Notes 16 false false R17.htm 995210801 - Disclosure - Divestitures Sheet http://www.wm.com/role/DisclosureDivestitures Divestitures Notes 17 false false R18.htm 995210901 - Disclosure - Accumulated Other Comprehensive Income (Loss) Sheet http://www.wm.com/role/DisclosureAccumulatedOtherComprehensiveIncomeLoss Accumulated Other Comprehensive Income (Loss) Notes 18 false false R19.htm 995211001 - Disclosure - Common Stock Repurchase Program Sheet http://www.wm.com/role/DisclosureCommonStockRepurchaseProgram Common Stock Repurchase Program Notes 19 false false R20.htm 995211101 - Disclosure - Fair Value Measurements Sheet http://www.wm.com/role/DisclosureFairValueMeasurements Fair Value Measurements Notes 20 false false R21.htm 995211201 - Disclosure - Variable Interest Entities Sheet http://www.wm.com/role/DisclosureVariableInterestEntities Variable Interest Entities Notes 21 false false R22.htm 995410 - Disclosure - Pay vs Performance Disclosure Sheet http://xbrl.sec.gov/ecd/role/PvpDisclosure Pay vs Performance Disclosure Notes 22 false false R23.htm 995445 - Disclosure - Insider Trading Arrangements Sheet http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements Insider Trading Arrangements Notes 23 false false R24.htm 99920102 - Disclosure - Basis of Presentation (Policies) Sheet http://www.wm.com/role/DisclosureBasisOfPresentationPolicies Basis of Presentation (Policies) Policies 24 false false R25.htm 99930203 - Disclosure - Landfill and Environmental Remediation Liabilities (Tables) Sheet http://www.wm.com/role/DisclosureLandfillAndEnvironmentalRemediationLiabilitiesTables Landfill and Environmental Remediation Liabilities (Tables) Tables http://www.wm.com/role/DisclosureLandfillAndEnvironmentalRemediationLiabilities 25 false false R26.htm 99930303 - Disclosure - Debt (Tables) Sheet http://www.wm.com/role/DisclosureDebtTables Debt (Tables) Tables http://www.wm.com/role/DisclosureDebt 26 false false R27.htm 99930503 - Disclosure - Earnings Per Share (Tables) Sheet http://www.wm.com/role/DisclosureEarningsPerShareTables Earnings Per Share (Tables) Tables http://www.wm.com/role/DisclosureEarningsPerShare 27 false false R28.htm 99930703 - Disclosure - Segment and Related Information (Tables) Sheet http://www.wm.com/role/DisclosureSegmentAndRelatedInformationTables Segment and Related Information (Tables) Tables http://www.wm.com/role/DisclosureSegmentAndRelatedInformation 28 false false R29.htm 99930903 - Disclosure - Accumulated Other Comprehensive Income (Loss) (Tables) Sheet http://www.wm.com/role/DisclosureAccumulatedOtherComprehensiveIncomeLossTables Accumulated Other Comprehensive Income (Loss) (Tables) Tables http://www.wm.com/role/DisclosureAccumulatedOtherComprehensiveIncomeLoss 29 false false R30.htm 99931103 - Disclosure - Fair Value Measurements (Tables) Sheet http://www.wm.com/role/DisclosureFairValueMeasurementsTables Fair Value Measurements (Tables) Tables http://www.wm.com/role/DisclosureFairValueMeasurements 30 false false R31.htm 99940101 - Disclosure - Basis of Presentation (Detail) Sheet http://www.wm.com/role/DisclosureBasisOfPresentationDetail Basis of Presentation (Detail) Details http://www.wm.com/role/DisclosureBasisOfPresentationPolicies 31 false false R32.htm 99940201 - Disclosure - Landfill and Environmental Remediation Liabilities - Summary (Detail) Sheet http://www.wm.com/role/DisclosureLandfillAndEnvironmentalRemediationLiabilitiesSummaryDetail Landfill and Environmental Remediation Liabilities - Summary (Detail) Details http://www.wm.com/role/DisclosureLandfillAndEnvironmentalRemediationLiabilitiesTables 32 false false R33.htm 99940202 - Disclosure - Landfill and Environmental Remediation Liabilities - Changes (Detail) Sheet http://www.wm.com/role/DisclosureLandfillAndEnvironmentalRemediationLiabilitiesChangesDetail Landfill and Environmental Remediation Liabilities - Changes (Detail) Details http://www.wm.com/role/DisclosureLandfillAndEnvironmentalRemediationLiabilitiesTables 33 false false R34.htm 99940301 - Disclosure - Debt - Components (Detail) Sheet http://www.wm.com/role/DisclosureDebtComponentsDetail Debt - Components (Detail) Details 34 false false R35.htm 99940302 - Disclosure - Debt - Classification and Credit Facilities (Detail) Sheet http://www.wm.com/role/DisclosureDebtClassificationAndCreditFacilitiesDetail Debt - Classification and Credit Facilities (Detail) Details 35 false false R36.htm 99940303 - Disclosure - Debt - Borrowings and Repayments (Detail) Sheet http://www.wm.com/role/DisclosureDebtBorrowingsAndRepaymentsDetail Debt - Borrowings and Repayments (Detail) Details 36 false false R37.htm 99940401 - Disclosure - Income Taxes (Detail) Sheet http://www.wm.com/role/DisclosureIncomeTaxesDetail Income Taxes (Detail) Details http://www.wm.com/role/DisclosureIncomeTaxes 37 false false R38.htm 99940501 - Disclosure - Earnings Per Share (Detail) Sheet http://www.wm.com/role/DisclosureEarningsPerShareDetail Earnings Per Share (Detail) Details http://www.wm.com/role/DisclosureEarningsPerShareTables 38 false false R39.htm 99940601 - Disclosure - Commitments and Contingencies (Detail) Sheet http://www.wm.com/role/DisclosureCommitmentsAndContingenciesDetail Commitments and Contingencies (Detail) Details http://www.wm.com/role/DisclosureCommitmentsAndContingencies 39 false false R40.htm 99940701 - Disclosure - Segment and Related Information - Summary (Detail) Sheet http://www.wm.com/role/DisclosureSegmentAndRelatedInformationSummaryDetail Segment and Related Information - Summary (Detail) Details 40 false false R41.htm 99940702 - Disclosure - Segment and Related Information - Assets (Detail) Sheet http://www.wm.com/role/DisclosureSegmentAndRelatedInformationAssetsDetail Segment and Related Information - Assets (Detail) Details 41 false false R42.htm 99940703 - Disclosure - Segment and Related Information - Revenue mix (Detail) Sheet http://www.wm.com/role/DisclosureSegmentAndRelatedInformationRevenueMixDetail Segment and Related Information - Revenue mix (Detail) Details 42 false false R43.htm 99940801 - Disclosure - Divestitures (Detail) Sheet http://www.wm.com/role/DisclosureDivestituresDetail Divestitures (Detail) Details http://www.wm.com/role/DisclosureDivestitures 43 false false R44.htm 99940901 - Disclosure - Accumulated Other Comprehensive Income (Loss) (Detail) Sheet http://www.wm.com/role/DisclosureAccumulatedOtherComprehensiveIncomeLossDetail Accumulated Other Comprehensive Income (Loss) (Detail) Details http://www.wm.com/role/DisclosureAccumulatedOtherComprehensiveIncomeLossTables 44 false false R45.htm 99941001 - Disclosure - Common Stock Repurchase Program - Repurchases (Detail) Sheet http://www.wm.com/role/DisclosureCommonStockRepurchaseProgramRepurchasesDetail Common Stock Repurchase Program - Repurchases (Detail) Details 45 false false R46.htm 99941101 - Disclosure - Fair Value Measurements - Recurring (Detail) Sheet http://www.wm.com/role/DisclosureFairValueMeasurementsRecurringDetail Fair Value Measurements - Recurring (Detail) Details 46 false false R47.htm 99941102 - Disclosure - Fair Value Measurements - Debt (Detail) Sheet http://www.wm.com/role/DisclosureFairValueMeasurementsDebtDetail Fair Value Measurements - Debt (Detail) Details 47 false false R48.htm 99941201 - Disclosure - Variable Interest Entities (Detail) Sheet http://www.wm.com/role/DisclosureVariableInterestEntitiesDetail Variable Interest Entities (Detail) Details http://www.wm.com/role/DisclosureVariableInterestEntities 48 false false All Reports Book All Reports wm-20260331.xsd wm-20260331_cal.xml wm-20260331_def.xml wm-20260331_lab.xml wm-20260331_pre.xml wm-20260331x10q.htm http://fasb.org/srt/2025 http://fasb.org/us-gaap/2025 http://xbrl.sec.gov/dei/2025 http://xbrl.sec.gov/ecd/2025 true true