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Segment and Related Information - Revenues mix (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Revenue from External Customer [Line Items]      
Operating revenues $ 15,218 $ 15,455 $ 14,914
Operating Segments [Member]      
Revenue from External Customer [Line Items]      
Operating revenues 18,478 18,704 18,024
Operating Segments [Member] | Collection [Member]      
Revenue from External Customer [Line Items]      
Operating revenues 10,053 10,240 9,724
Operating Segments [Member] | Commercial [Member]      
Revenue from External Customer [Line Items]      
Operating revenues 4,102 4,229 3,972
Operating Segments [Member] | Residential [Member]      
Revenue from External Customer [Line Items]      
Operating revenues 2,716 2,613 2,529
Operating Segments [Member] | Industrial [Member]      
Revenue from External Customer [Line Items]      
Operating revenues 2,770 2,916 2,773
Operating Segments [Member] | Other collection [Member]      
Revenue from External Customer [Line Items]      
Operating revenues 465 482 450
Operating Segments [Member] | Landfill [Member]      
Revenue from External Customer [Line Items]      
Operating revenues 3,667 3,846 3,560
Operating Segments [Member] | Transfer [Member]      
Revenue from External Customer [Line Items]      
Operating revenues 1,855 1,820 1,711
Operating Segments [Member] | Recycling [Member]      
Revenue from External Customer [Line Items]      
Operating revenues 1,127 1,040 1,293
Operating Segments [Member] | Other Revenue [Member]      
Revenue from External Customer [Line Items]      
Operating revenues 1,776 1,758 1,736
Intercompany Operating Revenues [Member]      
Revenue from External Customer [Line Items]      
Operating revenues $ (3,260) $ (3,249) $ (3,110)