Revenue and Credit Losses - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Disaggregation of Revenue [Line Items]
Net revenue	$ 4,430	$ 4,235	$ 8,544	$ 8,244
Revenue as a percentage of total revenue	100.00%	100.00%	100.00%	100.00%
Transfer
Disaggregation of Revenue [Line Items]
Net revenue	$ 231	$ 221	$ 432	$ 409
Revenue as a percentage of total revenue	5.20%	5.20%	5.10%	5.00%
Landfill
Disaggregation of Revenue [Line Items]
Net revenue	$ 517	$ 516	$ 970	$ 937
Revenue as a percentage of total revenue	11.70%	12.20%	11.40%	11.40%
Environmental solutions
Disaggregation of Revenue [Line Items]
Net revenue	$ 458	$ 462	$ 863	$ 911
Revenue as a percentage of total revenue	10.30%	10.90%	10.10%	11.10%
Other
Disaggregation of Revenue [Line Items]
Net revenue	$ 231	$ 214	$ 447	$ 422
Revenue as a percentage of total revenue	5.20%	5.10%	5.20%	5.10%
Recycling processing and commodity sales
Disaggregation of Revenue [Line Items]
Net revenue	$ 122	$ 114	$ 234	$ 222
Revenue as a percentage of total revenue	2.70%	2.70%	2.70%	2.70%
Other non-core
Disaggregation of Revenue [Line Items]
Net revenue	$ 109	$ 100	$ 213	$ 200
Revenue as a percentage of total revenue	2.50%	2.40%	2.50%	2.40%
Operating Segments \| Collection
Disaggregation of Revenue [Line Items]
Net revenue	$ 2,993	$ 2,822	$ 5,832	$ 5,565
Revenue as a percentage of total revenue	67.60%	66.60%	68.20%	67.40%
Operating Segments \| Residential
Disaggregation of Revenue [Line Items]
Net revenue	$ 767	$ 752	$ 1,515	$ 1,496
Revenue as a percentage of total revenue	17.30%	17.80%	17.70%	18.10%
Operating Segments \| Small-container
Disaggregation of Revenue [Line Items]
Net revenue	$ 1,369	$ 1,259	$ 2,675	$ 2,502
Revenue as a percentage of total revenue	30.90%	29.70%	31.30%	30.30%
Operating Segments \| Large-container
Disaggregation of Revenue [Line Items]
Net revenue	$ 839	$ 794	$ 1,607	$ 1,532
Revenue as a percentage of total revenue	19.00%	18.70%	18.80%	18.60%
Operating Segments \| Other
Disaggregation of Revenue [Line Items]
Net revenue	$ 18	$ 17	$ 35	$ 35
Revenue as a percentage of total revenue	0.40%	0.40%	0.40%	0.40%
Operating Segments \| Transfer
Disaggregation of Revenue [Line Items]
Net revenue	$ 495	$ 479	$ 935	$ 903
Operating Segments \| Landfill
Disaggregation of Revenue [Line Items]
Net revenue	858	854	1,622	1,577
Operating Segments \| Environmental solutions
Disaggregation of Revenue [Line Items]
Net revenue	473	478	891	944
Intercompany revenue \| Transfer
Disaggregation of Revenue [Line Items]
Net revenue	(264)	(258)	(503)	(494)
Intercompany revenue \| Landfill
Disaggregation of Revenue [Line Items]
Net revenue	(341)	(338)	(652)	(640)
Intercompany revenue \| Environmental solutions
Disaggregation of Revenue [Line Items]
Net revenue	$ (15)	$ (16)	$ (28)	$ (33)