Segment and Related Information - Revenues mix (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Revenue from External Customer [Line Items]
Operating revenues	$ 3,946	$ 3,739	$ 7,642	$ 7,250
Operating Segments [Member]
Revenue from External Customer [Line Items]
Operating revenues	4,779	4,537	9,232	8,763
Operating Segments [Member] | Collection [Member]
Revenue from External Customer [Line Items]
Operating revenues	2,573	2,441	5,028	4,748
Operating Segments [Member] | Commercial [Member]
Revenue from External Customer [Line Items]
Operating revenues	1,052	986	2,078	1,941
Operating Segments [Member] | Residential [Member]
Revenue from External Customer [Line Items]
Operating revenues	655	632	1,295	1,246
Operating Segments [Member] | Industrial [Member]
Revenue from External Customer [Line Items]
Operating revenues	744	708	1,424	1,345
Operating Segments [Member] | Other Collection [Member]
Revenue from External Customer [Line Items]
Operating revenues	122	115	231	216
Operating Segments [Member] | Landfill [Member]
Revenue from External Customer [Line Items]
Operating revenues	1,023	915	1,887	1,720
Operating Segments [Member] | Transfer [Member]
Revenue from External Customer [Line Items]
Operating revenues	474	437	886	812
Operating Segments [Member] | Recycling [Member]
Revenue from External Customer [Line Items]
Operating revenues	264	305	555	617
Operating Segments [Member] | Other Revenue [Member]
Revenue from External Customer [Line Items]
Operating revenues	445	439	876	866
Intercompany Operating Revenues [Member]
Revenue from External Customer [Line Items]
Operating revenues	$ (833)	$ (798)	$ (1,590)	$ (1,513)