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Segment and Related Information - Summary (Detail) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | $ 3,967 | $ 3,822 | $ 11,609 | $ 11,072
Income from operations | 734 | 699 | 2,051 | 2,022
Operating Group Total [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | 3,967 | 3,822 | 11,609 | 11,072
Income from operations | 900 | 834 | 2,576 | 2,433
Solid Waste [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | 3,411 | 3,238 | 9,946 | 9,378
Income from operations | 936 | 849 | 2,700 | 2,458
Tier 1 [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | 1,310 | 1,229 | 3,835 | 3,577
Income from operations | 432 | 416 | 1,258 | 1,176
Tier 2 [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | 579 | 544 | 1,670 | 1,586
Income from operations | 153 | 142 | 437 | 405
Tier 3 [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | 1,522 | 1,465 | 4,441 | 4,215
Income from operations | 351 | 291 | 1,005 | 877
Other [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | 556 | 584 | 1,663 | 1,694
Income from operations | (36) | (15) | (124) | (25)
Operating Segments [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | 4,804 | 4,624 | 14,036 | 13,387
Operating Segments [Member] | Operating Group Total [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | 4,804 | 4,624 | 14,036 | 13,387
Operating Segments [Member] | Solid Waste [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | 4,215 | 3,995 | 12,279 | 11,538
Operating Segments [Member] | Tier 1 [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | 1,610 | 1,506 | 4,704 | 4,364
Operating Segments [Member] | Tier 2 [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | 714 | 671 | 2,060 | 1,947
Operating Segments [Member] | Tier 3 [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | 1,891 | 1,818 | 5,515 | 5,227
Operating Segments [Member] | Other [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | 589 | 629 | 1,757 | 1,849
Intercompany Operating Revenues [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | (837) | (802) | (2,427) | (2,315)
Intercompany Operating Revenues [Member] | Operating Group Total [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | (837) | (802) | (2,427) | (2,315)
Intercompany Operating Revenues [Member] | Solid Waste [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | (804) | (757) | (2,333) | (2,160)
Intercompany Operating Revenues [Member] | Tier 1 [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | (300) | (277) | (869) | (787)
Intercompany Operating Revenues [Member] | Tier 2 [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | (135) | (127) | (390) | (361)
Intercompany Operating Revenues [Member] | Tier 3 [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | (369) | (353) | (1,074) | (1,012)
Intercompany Operating Revenues [Member] | Other [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | (33) | (45) | (94) | (155)
Corporate and Other [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Income from operations | $ (166) | $ (135) | $ (525) | $ (411)

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