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Segment and Related Information - Revenues mix (Detail) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Revenue from External Customer [Line Items]    
Operating revenues $ 4,112 $ 3,729
Operating Segments [Member]    
Revenue from External Customer [Line Items]    
Operating revenues 4,971 4,530
Operating Segments [Member] | Collection [Member]    
Revenue from External Customer [Line Items]    
Operating revenues 2,772 2,518
Operating Segments [Member] | Commercial [Member]    
Revenue from External Customer [Line Items]    
Operating revenues 1,131 1,063
Operating Segments [Member] | Residential [Member]    
Revenue from External Customer [Line Items]    
Operating revenues 782 650
Operating Segments [Member] | Industrial [Member]    
Revenue from External Customer [Line Items]    
Operating revenues 743 693
Operating Segments [Member] | Other collection [Member]    
Revenue from External Customer [Line Items]    
Operating revenues 116 112
Operating Segments [Member] | Landfill [Member]    
Revenue from External Customer [Line Items]    
Operating revenues 915 887
Operating Segments [Member] | Transfer [Member]    
Revenue from External Customer [Line Items]    
Operating revenues 465 441
Operating Segments [Member] | Recycling [Member]    
Revenue from External Customer [Line Items]    
Operating revenues 342 254
Operating Segments [Member] | Other Revenue [Member]    
Revenue from External Customer [Line Items]    
Operating revenues 477 430
Intercompany Operating Revenues [Member]    
Revenue from External Customer [Line Items]    
Operating revenues $ (859) $ (801)