Segment and Related Information - Summary (Detail) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2022 USD ($) segment	Mar. 31, 2021 USD ($)	Dec. 31, 2021 segment
Segment Reporting Information [Line Items]
Number of segments | segment	2		2
Operating revenues	$ 4,661	$ 4,112
Income from operations	768	650
Operating Segments [Member]
Segment Reporting Information [Line Items]
Operating revenues	5,646	4,971
Intercompany Operating Revenues [Member]
Segment Reporting Information [Line Items]
Operating revenues	(985)	(859)
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Income from operations	(313)	(298)
Operating Group Total [Member]
Segment Reporting Information [Line Items]
Operating revenues	4,661	4,112
Income from operations	1,081	948
Operating Group Total [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Operating revenues	5,646	4,971
Operating Group Total [Member] | Intercompany Operating Revenues [Member]
Segment Reporting Information [Line Items]
Operating revenues	(985)	(859)
Solid Waste [Member]
Segment Reporting Information [Line Items]
Operating revenues	3,854	3,470
Income from operations	1,080	928
Solid Waste [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Operating revenues	4,789	4,306
Solid Waste [Member] | Intercompany Operating Revenues [Member]
Segment Reporting Information [Line Items]
Operating revenues	(935)	(836)
East Tier [Member]
Segment Reporting Information [Line Items]
Operating revenues	1,938	1,734
Income from operations	531	453
East Tier [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Operating revenues	2,383	2,128
East Tier [Member] | Intercompany Operating Revenues [Member]
Segment Reporting Information [Line Items]
Operating revenues	(445)	(394)
West Tier [Member]
Segment Reporting Information [Line Items]
Operating revenues	1,916	1,736
Income from operations	549	475
West Tier [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Operating revenues	2,406	2,178
West Tier [Member] | Intercompany Operating Revenues [Member]
Segment Reporting Information [Line Items]
Operating revenues	(490)	(442)
Other [Member]
Segment Reporting Information [Line Items]
Operating revenues	807	642
Income from operations	1	20
Other [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Operating revenues	857	665
Other [Member] | Intercompany Operating Revenues [Member]
Segment Reporting Information [Line Items]
Operating revenues	$ (50)	$ (23)