Amortization of Waste Service Energy Contract Intangible (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Waste Service Energy Contract Intangible [Line Items]
Waste, service and energy contracts, net	$ 399	$ 434
Waste And Service Contracts Noncurrent	35	76
Finite-Lived Intangible Asset, Weighted Average Period before Next Renewal or Extension	8 years
Waste And Service Contracts Intangible Liabilities [Member]
Waste Service Energy Contract Intangible [Line Items]
Waste And Service Contracts Gross Noncurrent	(126)	(155)
Waste And Service Contracts Accumulated Amortization Noncurrent	(91)	(79)
Waste And Service Contracts Noncurrent	(35)	(76)
Waste Service And Energy Contracts Intangible Assets [Member]
Waste Service Energy Contract Intangible [Line Items]
Waste Service And Energy Contracts Gross Noncurrent	620	632
Waste Service And Energy Contracts Accumulated Amortization Noncurrent	221	198
Waste, service and energy contracts, net	$ 399	$ 434
Finite-Lived Intangible Asset, Useful Life	23 years
Waste And Service Contracts Intangible Liabilities [Member]
Waste Service Energy Contract Intangible [Line Items]
Finite Lived Intangible Liabilities Average Useful Life	3 years
Minimum [Member] | Waste Service And Energy Contracts Intangible Assets [Member]
Waste Service Energy Contract Intangible [Line Items]
Finite-Lived Intangible Asset, Useful Life	1 year
Minimum [Member] | Waste And Service Contracts Intangible Liabilities [Member]
Waste Service Energy Contract Intangible [Line Items]
Finite Lived Intangible Liabilities Average Useful Life	1 year
Maximum [Member] | Waste Service And Energy Contracts Intangible Assets [Member]
Waste Service Energy Contract Intangible [Line Items]
Finite-Lived Intangible Asset, Useful Life	35 years
Maximum [Member] | Waste And Service Contracts Intangible Liabilities [Member]
Waste Service Energy Contract Intangible [Line Items]
Finite Lived Intangible Liabilities Average Useful Life	4 years