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Property and Equipment - Property and Equipment (Detail) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
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Property, Plant and Equipment |  |
Property and equipment , gross | $ 43,117 | $ 39,794
Less accumulated depreciation, depletion and amortization | (23,777) | (22,826)
Property and equipment, net | 19,340 | 16,968
Land [Member] |  |
Property, Plant and Equipment |  |
Property and equipment , gross | 873 | 772
Landfill [Member] |  |
Property, Plant and Equipment |  |
Property and equipment , gross | 20,273 | 19,473
Vehicles [Member] |  |
Property, Plant and Equipment |  |
Property and equipment , gross | 7,065 | 6,581
Machinery and Equipment [Member] |  |
Property, Plant and Equipment |  |
Property and equipment , gross | 5,757 | 4,989
Machinery and Equipment [Member] | Recycling Processing and Sales [Member] |  |
Property, Plant and Equipment |  |
Property and equipment , gross | 1,700 | 1,500
Machinery and Equipment [Member] | WM Renewable Energy [Member] |  |
Property, Plant and Equipment |  |
Property and equipment , gross | 834 | 720
Machinery and Equipment [Member] | WM Healthcare Solutions [Member] |  |
Property, Plant and Equipment |  |
Property and equipment , gross | 419 |
Containers [Member] |  |
Property, Plant and Equipment |  |
Property and equipment , gross | 3,369 | 3,104
Building and Improvements [Member] |  |
Property, Plant and Equipment |  |
Property and equipment , gross | 5,210 | 4,266
Furniture, Fixtures and Office Equipment [Member] |  |
Property, Plant and Equipment |  |
Property and equipment , gross | 570 | 609
Tangible Property and Equipment [Member] |  |
Property, Plant and Equipment |  |
Less accumulated depreciation, depletion and amortization | (11,518) | (11,183)
Landfill Airspace [Member] |  |
Property, Plant and Equipment |  |
Less accumulated depreciation, depletion and amortization | (12,259) | (11,643)
Construction in Progress [Member] |  |
Property, Plant and Equipment |  |
Property and equipment, net | $ 3,400 | $ 2,800

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- Definition Amount, after accumulated depreciation and amortization, of property, plant, and equipment and finance lease right-of-use asset. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 360 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482099/360-10-50-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (a) -SubTopic 20 -Topic 842 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-4 + Details
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