Components of Waste and Service Revenues (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Components of Waste and Service Revenue [Line Items]
Waste and service revenues	$ 241	$ 230
Waste and Services Revenue [Member]
Components of Waste and Service Revenue [Line Items]
Revenue earned explicitly to service project debt - interest	1	2
Waste and service revenues unrelated to project debt	235	220
Revenue earned explicitly to service project debt - principal	$ 5	$ 8