Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Statement of Comprehensive Income [Abstract]
Consolidated net income	$ 752	$ 1,338	$ 130
Derivative instruments, net	9	1	12
Available-for-sale securities, net	(2)	4	2
Foreign currency translation adjustments	(159)	(124)	(68)
Post-retirement benefit obligation, net	2	(12)	15
Other comprehensive income (loss), net of taxes	(150)	(131)	(39)
Comprehensive income	602	1,207	91
Less: Comprehensive income (loss) attributable to noncontrolling interests	(1)	40	32
Comprehensive income attributable to Waste Management, Inc.	$ 603	$ 1,167	$ 59