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Segment and Related Information - Reportable Segments (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | $ 3,677 | $ 3,425 | $ 7,117 | $ 6,601
Income from operations | 673 | 611 | 1,231 | 1,119
Solid Waste [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Income from operations | 833 | 754 | 1,583 | 1,441
Solid Waste [Member] | Tier 1 [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Income from operations | 395 | 362 | 761 | 696
Solid Waste [Member] | Tier 2 [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Income from operations | 190 | 157 | 347 | 302
Solid Waste [Member] | Tier 3 [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Income from operations | 248 | 235 | 475 | 443
Other [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Income from operations | (18) | (20) | (50) | (56)
Operating Group Total [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Income from operations | 815 | 734 | 1,533 | 1,385
Intercompany Operating Revenues [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | (739) | (666) | (1,411) | (1,272)
Intercompany Operating Revenues [Member] | Solid Waste [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | (683) | (620) | (1,307) | (1,186)
Intercompany Operating Revenues [Member] | Solid Waste [Member] | Tier 1 [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | (258) | (229) | (496) | (441)
Intercompany Operating Revenues [Member] | Solid Waste [Member] | Tier 2 [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | (169) | (158) | (322) | (300)
Intercompany Operating Revenues [Member] | Solid Waste [Member] | Tier 3 [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | (256) | (233) | (489) | (445)
Intercompany Operating Revenues [Member] | Other [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | (56) | (46) | (104) | (86)
Intercompany Operating Revenues [Member] | Operating Group Total [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | (739) | (666) | (1,411) | (1,272)
Corporate and Other [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Income from operations | (142) | (123) | (302) | (266)
Gross Operating Revenues [Member] | Operating Segments [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | 4,416 | 4,091 | 8,528 | 7,873
Gross Operating Revenues [Member] | Operating Segments [Member] | Solid Waste [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | 3,759 | 3,519 | 7,268 | 6,801
Gross Operating Revenues [Member] | Operating Segments [Member] | Solid Waste [Member] | Tier 1 [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | 1,417 | 1,316 | 2,757 | 2,557
Gross Operating Revenues [Member] | Operating Segments [Member] | Solid Waste [Member] | Tier 2 [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | 916 | 856 | 1,758 | 1,637
Gross Operating Revenues [Member] | Operating Segments [Member] | Solid Waste [Member] | Tier 3 [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | 1,426 | 1,347 | 2,753 | 2,607
Gross Operating Revenues [Member] | Operating Segments [Member] | Other [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | 657 | 572 | 1,260 | 1,072
Gross Operating Revenues [Member] | Operating Segments [Member] | Operating Group Total [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | 4,416 | 4,091 | 8,528 | 7,873
Net Operating Revenues [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | 3,677 | 3,425 | 7,117 | 6,601
Net Operating Revenues [Member] | Solid Waste [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | 3,076 | 2,899 | 5,961 | 5,615
Net Operating Revenues [Member] | Solid Waste [Member] | Tier 1 [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | 1,159 | 1,087 | 2,261 | 2,116
Net Operating Revenues [Member] | Solid Waste [Member] | Tier 2 [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | 747 | 698 | 1,436 | 1,337
Net Operating Revenues [Member] | Solid Waste [Member] | Tier 3 [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | 1,170 | 1,114 | 2,264 | 2,162
Net Operating Revenues [Member] | Other [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | 601 | 526 | 1,156 | 986
Net Operating Revenues [Member] | Operating Group Total [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | $ 3,677 | $ 3,425 | $ 7,117 | $ 6,601

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