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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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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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