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Revenue and Credit Losses (Tables)
9 Months Ended
Sep. 30, 2025
Revenue from Contract with Customer [Abstract]  
Schedule of Disaggregation of Revenue The following table disaggregates our revenue by service line for the three and nine months ended September 30, 2025 and 2024 (in millions of dollars and as a percentage of revenue):
 Three Months Ended September 30,Nine Months Ended September 30,
 2025202420252024
Collection:
Residential
$754 17.9 %$740 18.1 %$2,249 18.0 %$2,196 18.3 %
Small-container
1,267 30.1 1,209 29.7 3,768 30.3 3,599 30.0 
Large-container
797 18.9 775 19.0 2,330 18.7 2,278 19.0 
Other
17 0.4 18 0.5 53 0.4 54 0.5 
Total collection
2,835 67.3 2,742 67.3 8,400 67.4 8,127 67.8 
Transfer472 459 1,376 1,336 
Less: intercompany(248)(247)(741)(733)
Transfer, net
224 5.3 212 5.2 635 5.1 603 5.0 
Landfill845 768 2,421 2,234 
Less: intercompany(329)(315)(968)(937)
Landfill, net
516 12.3 453 11.1 1,453 11.7 1,297 10.8 
Environmental solutions449 480 1,393 1,408 
Less: intercompany(16)(15)(49)(47)
Environmental solutions, net
433 10.3 465 11.4 1,344 10.8 1,361 11.4 
Other:
Recycling processing and commodity sales
107 2.5 107 2.6 328 2.6 311 2.6 
Other non-core
97 2.3 97 2.4 296 2.4 287 2.4 
Total other
2044.8 204 5.0 624 5.0 598 5.0 
Total revenue$4,212 100.0 %$4,076 100.0 %$12,456 100.0 %$11,986 100.0 %
Schedule of Activity in Allowance for Doubtful Accounts
The following table reflects the activity in our allowance for doubtful accounts for the nine months ended September 30, 2025 and 2024:
20252024
Balance at beginning of year$74 $83 
Additions charged to expense27 20 
Accounts written-off(31)(28)
Balance at end of period$70 $75