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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