Amortization of Waste Service Energy Contract Intangible (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Waste Service Energy Contract Intangible [Line Items]
Finite-Lived Intangible Assets, Remaining Amortization Period	8 years
Finite-Lived Intangible Assets, Net	$ 263
Waste And Service Contracts Noncurrent	$ (7)	$ (13)
Waste Service And Energy Contracts Intangible Assets [Member]
Waste Service Energy Contract Intangible [Line Items]
Finite-Lived Intangible Assets, Remaining Amortization Period	22 years
Finite-Lived Intangible Assets, Gross	$ 526	531
Finite-Lived Intangible Assets, Accumulated Amortization	263	247
Finite-Lived Intangible Assets, Net	$ 263	284
Waste And Service Contracts Intangible Liabilities [Member]
Waste Service Energy Contract Intangible [Line Items]
Finite-Lived Intangible Assets, Remaining Amortization Period	3 years
Waste And Service Contracts Gross Noncurrent	$ (131)	(131)
Waste And Service Contracts Accumulated Amortization Noncurrent	(124)	(118)
Waste And Service Contracts Noncurrent	$ (7)	$ (13)