Segment and Related Information - Revenues mix (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Revenue from External Customer [Line Items]
Operating revenues	$ 3,967	$ 3,822	$ 11,609	$ 11,072
Operating Segments [Member]
Revenue from External Customer [Line Items]
Operating revenues	4,804	4,624	14,036	13,387
Operating Segments [Member] | Collection [Member]
Revenue from External Customer [Line Items]
Operating revenues	2,626	2,486	7,654	7,234
Operating Segments [Member] | Commercial [Member]
Revenue from External Customer [Line Items]
Operating revenues	1,069	1,007	3,147	2,948
Operating Segments [Member] | Residential [Member]
Revenue from External Customer [Line Items]
Operating revenues	661	639	1,956	1,885
Operating Segments [Member] | Industrial [Member]
Revenue from External Customer [Line Items]
Operating revenues	766	723	2,190	2,068
Operating Segments [Member] | Other Collection [Member]
Revenue from External Customer [Line Items]
Operating revenues	130	117	361	333
Operating Segments [Member] | Landfill [Member]
Revenue from External Customer [Line Items]
Operating revenues	993	926	2,880	2,646
Operating Segments [Member] | Transfer [Member]
Revenue from External Customer [Line Items]
Operating revenues	471	445	1,357	1,257
Operating Segments [Member] | Recycling [Member]
Revenue from External Customer [Line Items]
Operating revenues	245	337	800	954
Operating Segments [Member] | Other Revenue [Member]
Revenue from External Customer [Line Items]
Operating revenues	469	430	1,345	1,296
Intercompany Operating Revenues [Member]
Revenue from External Customer [Line Items]
Operating revenues	$ (837)	$ (802)	$ (2,427)	$ (2,315)