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Condensed Consolidating Financial Statements - Condensed Consolidating Statements of Comprehensive Income (Detail) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Condensed Income Statements, Captions [Line Items] |  |  |
Comprehensive income | $ 1,227 | $ 602 | $ 1,207
Less: Comprehensive income (loss) attributable to noncontrolling interests | (2) | (1) | 40
Comprehensive income attributable to Waste Management, Inc. | 1,229 | 603 | 1,167
Eliminations [Member] |  |  |
Condensed Income Statements, Captions [Line Items] |  |  |
Comprehensive income | (2,748) | (2,534) | (2,580)
Comprehensive income attributable to Waste Management, Inc. | (2,748) | (2,534) | (2,580)
WM [Member] |  |  |
Condensed Income Statements, Captions [Line Items] |  |  |
Comprehensive income | 1,189 | 762 | 1,300
Comprehensive income attributable to Waste Management, Inc. | 1,189 | 762 | 1,300
WM Holdings [Member] |  |  |
Condensed Income Statements, Captions [Line Items] |  |  |
Comprehensive income | 1,369 | 1,245 | 1,510
Comprehensive income attributable to Waste Management, Inc. | 1,369 | 1,245 | 1,510
Non-Guarantor Subsidiaries [Member] |  |  |
Condensed Income Statements, Captions [Line Items] |  |  |
Comprehensive income | 1,417 | 1,129 | 977
Less: Comprehensive income (loss) attributable to noncontrolling interests | (2) | (1) | 40
Comprehensive income attributable to Waste Management, Inc. | $ 1,419 | $ 1,130 | $ 937

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