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Segment and Related Information - Summary (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Segment Reporting Information [Line Items]      
Operating revenues $ 17,931 $ 15,218 $ 15,455
Income from operations 2,965 2,434 2,706
Depreciation and amortization 1,999 1,671 1,574
Capital Expenditures 2,039 1,585 1,815
Total Assets 29,097 29,345 27,743
Gain (loss) on sale of assets 44 33  
Asset impairments 8 68 42
Advanced Disposal [Member]      
Segment Reporting Information [Line Items]      
Operating revenues   205  
Disposed of by Sale, Not Discontinued Operations [Member]      
Segment Reporting Information [Line Items]      
Gain (loss) on sale of assets 44 33  
Disposed of by Sale, Not Discontinued Operations [Member] | Advanced Disposal [Member]      
Segment Reporting Information [Line Items]      
Gain (loss) on sale of assets   33  
Landfills and Oil Field Waste Injection Facility [Member]      
Segment Reporting Information [Line Items]      
Asset impairments   41  
Landfill [Member]      
Segment Reporting Information [Line Items]      
Asset impairments   20  
Operating Segments [Member]      
Segment Reporting Information [Line Items]      
Operating revenues 21,693 18,478 18,704
Total Assets 29,392 29,649 28,010
Intercompany Operating Revenues [Member]      
Segment Reporting Information [Line Items]      
Operating revenues (3,762) (3,260) (3,249)
Corporate and Other [Member]      
Segment Reporting Information [Line Items]      
Income from operations (1,209) (996) (917)
Depreciation and amortization 76 45 36
Capital Expenditures 571 508 407
Total Assets 2,372 1,810 5,042
Elimination of Intercompany Investments and Advances [Member]      
Segment Reporting Information [Line Items]      
Total Assets (295) (304) (267)
Operating Group Total [Member]      
Segment Reporting Information [Line Items]      
Operating revenues 17,931 15,218 15,455
Operating Group Total [Member] | Operating Segments [Member]      
Segment Reporting Information [Line Items]      
Operating revenues 21,693 18,478 18,704
Income from operations 4,174 3,430 3,623
Depreciation and amortization 1,923 1,626 1,538
Capital Expenditures 1,468 1,077 1,408
Total Assets 27,020 27,839 22,968
Operating Group Total [Member] | Intercompany Operating Revenues [Member]      
Segment Reporting Information [Line Items]      
Operating revenues (3,762) (3,260) (3,249)
Solid Waste [Member]      
Segment Reporting Information [Line Items]      
Operating revenues 15,001 12,954 13,260
Solid Waste [Member] | Operating Segments [Member]      
Segment Reporting Information [Line Items]      
Operating revenues 18,647 16,114 16,387
Income from operations 4,140 3,472 3,781
Depreciation and amortization 1,853 1,539 1,463
Capital Expenditures 1,287 1,002 1,290
Total Assets 25,745 25,775 21,320
Solid Waste [Member] | Intercompany Operating Revenues [Member]      
Segment Reporting Information [Line Items]      
Operating revenues (3,646) (3,160) (3,127)
East Tier [Member]      
Segment Reporting Information [Line Items]      
Operating revenues 7,540 6,370 6,579
East Tier [Member] | Operating Segments [Member]      
Segment Reporting Information [Line Items]      
Operating revenues 9,278 7,873 8,098
Income from operations 2,037 1,672 1,847
Depreciation and amortization 970 801 776
Capital Expenditures 708 537 670
Total Assets 14,269 14,274 11,600
East Tier [Member] | Intercompany Operating Revenues [Member]      
Segment Reporting Information [Line Items]      
Operating revenues (1,738) (1,503) (1,519)
West Tier [Member]      
Segment Reporting Information [Line Items]      
Operating revenues 7,461 6,584 6,681
West Tier [Member] | Operating Segments [Member]      
Segment Reporting Information [Line Items]      
Operating revenues 9,369 8,241 8,289
Income from operations 2,103 1,800 1,934
Depreciation and amortization 883 738 687
Capital Expenditures 579 465 620
Total Assets 11,476 11,501 9,720
West Tier [Member] | Intercompany Operating Revenues [Member]      
Segment Reporting Information [Line Items]      
Operating revenues (1,908) (1,657) (1,608)
Other [Member]      
Segment Reporting Information [Line Items]      
Operating revenues 2,930 2,264 2,195
Other [Member] | Operating Segments [Member]      
Segment Reporting Information [Line Items]      
Operating revenues 3,046 2,364 2,317
Income from operations 34 (42) (158)
Depreciation and amortization 70 87 75
Capital Expenditures 181 75 118
Total Assets 1,275 2,064 1,648
Other [Member] | Intercompany Operating Revenues [Member]      
Segment Reporting Information [Line Items]      
Operating revenues $ (116) $ (100) $ (122)