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Acquisitions and Divestitures - Divestitures (Detail) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Oct. 30, 2020
Divestitures |  |  |  |
Gain (loss) on sale of assets | $ 44 | $ 33 |  |
Disposed of by Sale, Not Discontinued Operations [Member] |  |  |  |
Divestitures |  |  |  |
Aggregate sales prices for divestitures of hauling and ancillary operations | 48 | 856 | $ 8 |
Gain (loss) on sale of assets | $ 44 | 33 |  |
Disposed of by Sale, Not Discontinued Operations [Member] | Maximum [Member] |  |  |  |
Divestitures |  |  |  |
Gain (loss) on sale of assets |  |  | $ (1) |
Advanced Disposal [Member] | Disposed of by Sale, Not Discontinued Operations [Member] |  |  |  |
Divestitures |  |  |  |
Divestiture consideration |  |  |  | $ 856
Gain (loss) on sale of assets |  | $ 33 |  |

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