Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Statement of Comprehensive Income [Abstract]
Consolidated net income	$ 297	$ 256
Derivative instruments, net	2	7
Available-for-sale securities, net	1	1
Foreign currency translation adjustments	10	61
Post-retirement benefit obligation, net	1
Other comprehensive income, net of tax expense	14	69
Comprehensive income	311	325
Less: Comprehensive loss attributable to noncontrolling interests	(1)	(2)
Comprehensive income attributable to Waste Management, Inc.	$ 312	$ 327