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Segment and Related Information - Revenues mix (Detail) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Segment revenue |  |
Operating revenues | $ 5,159 | $ 4,892
Collection and Disposal [Member] |  |
Segment revenue |  |
Operating revenues | 4,716 | 4,523
Collection and Disposal [Member] | Collection [Member] |  |
Segment revenue |  |
Operating revenues | 3,615 | 3,475
Collection and Disposal [Member] | Commercial [Member] |  |
Segment revenue |  |
Operating revenues | 1,316 | 1,251
Collection and Disposal [Member] | Industrial [Member] |  |
Segment revenue |  |
Operating revenues | 747 | 756
Collection and Disposal [Member] | Residential [Member] |  |
Segment revenue |  |
Operating revenues | 854 | 829
Collection and Disposal [Member] | Other Collection [Member] |  |
Segment revenue |  |
Operating revenues | 698 | 639
Collection and Disposal [Member] | Landfill [Member] |  |
Segment revenue |  |
Operating revenues | 792 | 759
Collection and Disposal [Member] | Transfer [Member] |  |
Segment revenue |  |
Operating revenues | 309 | 289
Recycling Processing and Sales [Member] |  |
Segment revenue |  |
Operating revenues | 368 | 294
WM Renewable Energy [Member] |  |
Segment revenue |  |
Operating revenues | 69 | 69
Corporate and Other [Member] |  |
Segment revenue |  |
Operating revenues | 6 | 6
Operating Segments [Member] |  |
Segment revenue |  |
Operating revenues | 6,317 | 6,034
Operating Segments [Member] | Collection and Disposal [Member] |  |
Segment revenue |  |
Operating revenues | 5,799 | 5,578
Operating Segments [Member] | Collection and Disposal [Member] | Collection [Member] |  |
Segment revenue |  |
Operating revenues | 4,062 | 3,888
Operating Segments [Member] | Collection and Disposal [Member] | Commercial [Member] |  |
Segment revenue |  |
Operating revenues | 1,501 | 1,412
Operating Segments [Member] | Collection and Disposal [Member] | Industrial [Member] |  |
Segment revenue |  |
Operating revenues | 934 | 933
Operating Segments [Member] | Collection and Disposal [Member] | Residential [Member] |  |
Segment revenue |  |
Operating revenues | 876 | 854
Operating Segments [Member] | Collection and Disposal [Member] | Other Collection [Member] |  |
Segment revenue |  |
Operating revenues | 751 | 689
Operating Segments [Member] | Collection and Disposal [Member] | Landfill [Member] |  |
Segment revenue |  |
Operating revenues | 1,177 | 1,150
Operating Segments [Member] | Collection and Disposal [Member] | Transfer [Member] |  |
Segment revenue |  |
Operating revenues | 560 | 540
Operating Segments [Member] | Recycling Processing and Sales [Member] |  |
Segment revenue |  |
Operating revenues | 436 | 374
Operating Segments [Member] | WM Renewable Energy [Member] |  |
Segment revenue |  |
Operating revenues | 70 | 70
Operating Segments [Member] | Corporate and Other [Member] |  |
Segment revenue |  |
Operating revenues | 12 | 12
Intercompany [Member] |  |
Segment revenue |  |
Operating revenues | (1,158) | (1,142)
Intercompany [Member] | Collection and Disposal [Member] |  |
Segment revenue |  |
Operating revenues | (1,083) | (1,055)
Intercompany [Member] | Collection and Disposal [Member] | Collection [Member] |  |
Segment revenue |  |
Operating revenues | (447) | (413)
Intercompany [Member] | Collection and Disposal [Member] | Commercial [Member] |  |
Segment revenue |  |
Operating revenues | (185) | (161)
Intercompany [Member] | Collection and Disposal [Member] | Industrial [Member] |  |
Segment revenue |  |
Operating revenues | (187) | (177)
Intercompany [Member] | Collection and Disposal [Member] | Residential [Member] |  |
Segment revenue |  |
Operating revenues | (22) | (25)
Intercompany [Member] | Collection and Disposal [Member] | Other Collection [Member] |  |
Segment revenue |  |
Operating revenues | (53) | (50)
Intercompany [Member] | Collection and Disposal [Member] | Landfill [Member] |  |
Segment revenue |  |
Operating revenues | (385) | (391)
Intercompany [Member] | Collection and Disposal [Member] | Transfer [Member] |  |
Segment revenue |  |
Operating revenues | (251) | (251)
Intercompany [Member] | Recycling Processing and Sales [Member] |  |
Segment revenue |  |
Operating revenues | (68) | (80)
Intercompany [Member] | WM Renewable Energy [Member] |  |
Segment revenue |  |
Operating revenues | (1) | (1)
Intercompany [Member] | Corporate and Other [Member] |  |
Segment revenue |  |
Operating revenues | $ (6) | $ (6)

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