Segment and Related Information - Summary (Detail) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($) segment	Jun. 30, 2022 USD ($)
Segment Reporting Information [Line Items]
Number of segments \| segment			2
Operating revenues	$ 5,119	$ 5,027	$ 10,011	$ 9,688
Income from operations	944	890	1,769	1,658
Solid Waste [Member]
Segment Reporting Information [Line Items]
Operating revenues	4,276	4,185	8,367	8,039
Solid Waste [Member] \| East Tier Region Areas {Member]
Segment Reporting Information [Line Items]
Operating revenues	2,192	2,113	4,300	4,051
Solid Waste [Member] \| West Tier Region Areas [Member]
Segment Reporting Information [Line Items]
Operating revenues	2,084	2,072	4,067	3,988
Other [Member]
Segment Reporting Information [Line Items]
Operating revenues	843	842	1,644	1,649
Operating Segments [Member]
Segment Reporting Information [Line Items]
Operating revenues	6,328	6,122	12,362	11,768
Income from operations	1,230	1,207	2,348	2,288
Operating Segments [Member] \| Solid Waste [Member]
Segment Reporting Information [Line Items]
Operating revenues	5,427	5,221	10,606	10,010
Income from operations	1,243	1,189	2,365	2,269
Operating Segments [Member] \| Solid Waste [Member] \| East Tier Region Areas {Member]
Segment Reporting Information [Line Items]
Operating revenues	2,761	2,609	5,403	4,992
Income from operations	625	581	1,175	1,112
Operating Segments [Member] \| Solid Waste [Member] \| West Tier Region Areas [Member]
Segment Reporting Information [Line Items]
Operating revenues	2,666	2,612	5,203	5,018
Income from operations	618	608	1,190	1,157
Operating Segments [Member] \| Other [Member]
Segment Reporting Information [Line Items]
Operating revenues	901	901	1,756	1,758
Income from operations	(13)	18	(17)	19
Intercompany Operating Revenues [Member]
Segment Reporting Information [Line Items]
Operating revenues	(1,209)	(1,095)	(2,351)	(2,080)
Intercompany Operating Revenues [Member] \| Solid Waste [Member]
Segment Reporting Information [Line Items]
Operating revenues	(1,151)	(1,036)	(2,239)	(1,971)
Intercompany Operating Revenues [Member] \| Solid Waste [Member] \| East Tier Region Areas {Member]
Segment Reporting Information [Line Items]
Operating revenues	(569)	(496)	(1,103)	(941)
Intercompany Operating Revenues [Member] \| Solid Waste [Member] \| West Tier Region Areas [Member]
Segment Reporting Information [Line Items]
Operating revenues	(582)	(540)	(1,136)	(1,030)
Intercompany Operating Revenues [Member] \| Other [Member]
Segment Reporting Information [Line Items]
Operating revenues	(58)	(59)	(112)	(109)
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Income from operations	$ (286)	$ (317)	$ (579)	$ (630)