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Property and Equipment (Tables) | 12 Months Ended
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Dec. 31, 2020
Property, Plant and Equipment [Abstract] |
Property and Equipment | Property and equipment as of December 31 consisted of the following (in millions):
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2020 |  | 2019
Land | ​ | $ | 740 | ​ | $ | 656
Landfills | ​ |  | 16,842 | ​ |  | 15,910
Vehicles | ​ |  | 6,219 | ​ |  | 5,344
Machinery and equipment | ​ |  | 3,293 | ​ |  | 3,140
Containers | ​ |  | 2,869 | ​ |  | 2,616
Buildings and improvements | ​ |  | 3,529 | ​ |  | 3,174
Furniture, fixtures and office equipment | ​ |  | 751 | ​ | ​ | 710
​ | ​ |  | 34,243 | ​ |  | 31,550
Less: Accumulated depreciation of tangible property and equipment | ​ |  | (10,403) | ​ |  | (9,331)
Less: Accumulated amortization of landfill airspace | ​ |  | (9,692) | ​ | ​ | (9,326)
Property and equipment, net | ​ | $ | 14,148 | ​ | $ | 12,893
Depreciation and Amortization Expense Including Amortization Expense for Assets Recorded as Capital Leases | Depreciation and amortization expense, including amortization expense for assets recorded as financing leases, consisted of the following for the year ended December 31 (in millions):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2020 |  | 2019 |  | 2018
Depreciation of tangible property and equipment | ​ | $ | 996 | ​ | $ | 893 | ​ | $ | 838
Amortization of landfill airspace | ​ |  | 568 | ​ | ​ | 575 | ​ | ​ | 538
Depreciation and amortization expense | ​ | $ | 1,564 | ​ | $ | 1,468 | ​ | $ | 1,376

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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(13)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details
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- Definition Tabular disclosure of the amount of depreciation and amortization expense including amortization expense for assets recorded as capital leases. + References No definition available. + Details
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