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Segment and Related Information - Revenue mix (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Segment revenue |  |  |
Operating revenues | $ 22,063 | $ 20,426 | $ 19,698
Collection and Disposal [Member] |  |  |
Segment revenue |  |  |
Operating revenues | 19,716 | 18,865 | 17,843
Collection and Disposal [Member] | Collection [Member] |  |  |
Segment revenue |  |  |
Operating revenues | 14,890 | 14,356 | 13,615
Collection and Disposal [Member] | Commercial [Member] |  |  |
Segment revenue |  |  |
Operating revenues | 5,371 | 5,109 | 4,860
Collection and Disposal [Member] | Industrial [Member] |  |  |
Segment revenue |  |  |
Operating revenues | 3,089 | 3,083 | 3,025
Collection and Disposal [Member] | Residential [Member] |  |  |
Segment revenue |  |  |
Operating revenues | 3,466 | 3,378 | 3,264
Collection and Disposal [Member] | Other Collection [Member] |  |  |
Segment revenue |  |  |
Operating revenues | 2,964 | 2,786 | 2,466
Collection and Disposal [Member] | Landfill [Member] |  |  |
Segment revenue |  |  |
Operating revenues | 3,445 | 3,252 | 3,062
Collection and Disposal [Member] | Transfer [Member] |  |  |
Segment revenue |  |  |
Operating revenues | 1,381 | 1,257 | 1,166
Recycling Processing and Sales [Member] |  |  |
Segment revenue |  |  |
Operating revenues | 1,603 | 1,264 | 1,516
WM Renewable Energy [Member] |  |  |
Segment revenue |  |  |
Operating revenues | 318 | 273 | 312
WM Healthcare Solutions [Member] |  |  |
Segment revenue |  |  |
Operating revenues | 403 |  |
Corporate and Other [Member] |  |  |
Segment revenue |  |  |
Operating revenues | 23 | 24 | 27
Operating Segments [Member] |  |  |
Segment revenue |  |  |
Operating revenues | 26,879 | 25,039 | 23,936
Operating Segments [Member] | Collection and Disposal [Member] |  |  |
Segment revenue |  |  |
Operating revenues | 24,207 | 23,141 | 21,812
Operating Segments [Member] | Collection and Disposal [Member] | Collection [Member] |  |  |
Segment revenue |  |  |
Operating revenues | 16,801 | 16,117 | 15,153
Operating Segments [Member] | Collection and Disposal [Member] | Commercial [Member] |  |  |
Segment revenue |  |  |
Operating revenues | 6,169 | 5,801 | 5,450
Operating Segments [Member] | Collection and Disposal [Member] | Industrial [Member] |  |  |
Segment revenue |  |  |
Operating revenues | 3,883 | 3,836 | 3,681
Operating Segments [Member] | Collection and Disposal [Member] | Residential [Member] |  |  |
Segment revenue |  |  |
Operating revenues | 3,555 | 3,474 | 3,339
Operating Segments [Member] | Collection and Disposal [Member] | Other Collection [Member] |  |  |
Segment revenue |  |  |
Operating revenues | 3,194 | 3,006 | 2,683
Operating Segments [Member] | Collection and Disposal [Member] | Landfill [Member] |  |  |
Segment revenue |  |  |
Operating revenues | 4,958 | 4,731 | 4,516
Operating Segments [Member] | Collection and Disposal [Member] | Transfer [Member] |  |  |
Segment revenue |  |  |
Operating revenues | 2,448 | 2,293 | 2,143
Operating Segments [Member] | Recycling Processing and Sales [Member] |  |  |
Segment revenue |  |  |
Operating revenues | 1,890 | 1,576 | 1,760
Operating Segments [Member] | WM Renewable Energy [Member] |  |  |
Segment revenue |  |  |
Operating revenues | 321 | 276 | 315
Operating Segments [Member] | WM Healthcare Solutions [Member] |  |  |
Segment revenue |  |  |
Operating revenues | 413 |  |
Operating Segments [Member] | Corporate and Other [Member] |  |  |
Segment revenue |  |  |
Operating revenues | 48 | 46 | 49
Intersegment Eliminations [Member] |  |  |
Segment revenue |  |  |
Operating revenues | 4,816 | 4,613 | 4,238
Intersegment Eliminations [Member] | Collection and Disposal [Member] |  |  |
Segment revenue |  |  |
Operating revenues | 4,491 | 4,276 | 3,969
Intersegment Eliminations [Member] | Collection and Disposal [Member] | Collection [Member] |  |  |
Segment revenue |  |  |
Operating revenues | 1,911 | 1,761 | 1,538
Intersegment Eliminations [Member] | Collection and Disposal [Member] | Commercial [Member] |  |  |
Segment revenue |  |  |
Operating revenues | 798 | 692 | 590
Intersegment Eliminations [Member] | Collection and Disposal [Member] | Industrial [Member] |  |  |
Segment revenue |  |  |
Operating revenues | 794 | 753 | 656
Intersegment Eliminations [Member] | Collection and Disposal [Member] | Residential [Member] |  |  |
Segment revenue |  |  |
Operating revenues | 89 | 96 | 75
Intersegment Eliminations [Member] | Collection and Disposal [Member] | Other Collection [Member] |  |  |
Segment revenue |  |  |
Operating revenues | 230 | 220 | 217
Intersegment Eliminations [Member] | Collection and Disposal [Member] | Landfill [Member] |  |  |
Segment revenue |  |  |
Operating revenues | 1,513 | 1,479 | 1,454
Intersegment Eliminations [Member] | Collection and Disposal [Member] | Transfer [Member] |  |  |
Segment revenue |  |  |
Operating revenues | 1,067 | 1,036 | 977
Intersegment Eliminations [Member] | Recycling Processing and Sales [Member] |  |  |
Segment revenue |  |  |
Operating revenues | 287 | 312 | 244
Intersegment Eliminations [Member] | WM Renewable Energy [Member] |  |  |
Segment revenue |  |  |
Operating revenues | 3 | 3 | 3
Intersegment Eliminations [Member] | WM Healthcare Solutions [Member] |  |  |
Segment revenue |  |  |
Operating revenues | 10 |  |
Intersegment Eliminations [Member] | Corporate and Other [Member] |  |  |
Segment revenue |  |  |
Operating revenues | $ 25 | $ 22 | $ 22

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