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Segment and Related Information - Reportable Segments (Detail) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | $ 3,716 | $ 3,548 | $ 10,833 | $ 10,149
Income from operations | 701 | 560 | 1,932 | 1,679
Operating Group Total [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | 3,716 | 3,548 | 10,833 | 10,149
Income from operations | 837 | 698 | 2,370 | 2,083
Solid Waste [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | 3,118 | 2,990 | 9,079 | 8,605
Income from operations | 853 | 728 | 2,436 | 2,169
Tier 1 [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | 1,174 | 1,126 | 3,435 | 3,242
Income from operations | 398 | 369 | 1,159 | 1,065
Tier 2 [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | 753 | 723 | 2,189 | 2,060
Income from operations | 180 | 121 | 527 | 423
Tier 3 [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | 1,191 | 1,141 | 3,455 | 3,303
Income from operations | 275 | 238 | 750 | 681
Other [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | 598 | 558 | 1,754 | 1,544
Income from operations | (16) | (30) | (66) | (86)
Operating Segments [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | 4,465 | 4,239 | 12,993 | 12,112
Operating Segments [Member] | Operating Group Total [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | 4,465 | 4,239 | 12,993 | 12,112
Operating Segments [Member] | Solid Waste [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | 3,803 | 3,631 | 11,071 | 10,432
Operating Segments [Member] | Tier 1 [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | 1,432 | 1,364 | 4,189 | 3,921
Operating Segments [Member] | Tier 2 [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | 924 | 885 | 2,682 | 2,522
Operating Segments [Member] | Tier 3 [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | 1,447 | 1,382 | 4,200 | 3,989
Operating Segments [Member] | Other [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | 662 | 608 | 1,922 | 1,680
Intercompany Operating Revenues [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | (749) | (691) | (2,160) | (1,963)
Intercompany Operating Revenues [Member] | Operating Group Total [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | (749) | (691) | (2,160) | (1,963)
Intercompany Operating Revenues [Member] | Solid Waste [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | (685) | (641) | (1,992) | (1,827)
Intercompany Operating Revenues [Member] | Tier 1 [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | (258) | (238) | (754) | (679)
Intercompany Operating Revenues [Member] | Tier 2 [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | (171) | (162) | (493) | (462)
Intercompany Operating Revenues [Member] | Tier 3 [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | (256) | (241) | (745) | (686)
Intercompany Operating Revenues [Member] | Other [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | (64) | (50) | (168) | (136)
Corporate and Other [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Income from operations | $ (136) | $ (138) | $ (438) | $ (404)

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