Segment and Related Information - Revenues mix (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Revenue from External Customer [Line Items]
Operating revenues	$ 3,739	$ 3,677	$ 7,250	$ 7,117
Operating Segments [Member]
Revenue from External Customer [Line Items]
Operating revenues	4,537	4,416	8,763	8,528
Operating Segments [Member] | Collection [Member]
Revenue from External Customer [Line Items]
Operating revenues	2,441	2,326	4,748	4,561
Operating Segments [Member] | Commercial [Member]
Revenue from External Customer [Line Items]
Operating revenues	986	917	1,941	1,828
Operating Segments [Member] | Residential [Member]
Revenue from External Customer [Line Items]
Operating revenues	632	632	1,246	1,253
Operating Segments [Member] | Industrial [Member]
Revenue from External Customer [Line Items]
Operating revenues	708	654	1,345	1,257
Operating Segments [Member] | Other Collection [Member]
Revenue from External Customer [Line Items]
Operating revenues	115	123	216	223
Operating Segments [Member] | Landfill [Member]
Revenue from External Customer [Line Items]
Operating revenues	915	864	1,720	1,603
Operating Segments [Member] | Transfer [Member]
Revenue from External Customer [Line Items]
Operating revenues	437	414	812	780
Operating Segments [Member] | Recycling [Member]
Revenue from External Customer [Line Items]
Operating revenues	305	375	617	747
Operating Segments [Member] | Other Revenue [Member]
Revenue from External Customer [Line Items]
Operating revenues	439	437	866	837
Intercompany Operating Revenues [Member]
Revenue from External Customer [Line Items]
Operating revenues	$ (798)	$ (739)	$ (1,513)	$ (1,411)