CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Operating revenues:
Service revenues	$ 12,327	$ 11,852	$ 11,371
Tangible product revenues	1,322	1,526	1,144
Total operating revenues	13,649	13,378	12,515
Operating costs (exclusive of depreciation and amortization shown below):
Cost of services	7,765	7,254	6,854
Cost of tangible products	1,114	1,287	970
Total operating costs	8,879	8,541	7,824
Selling, general and administrative	1,472	1,551	1,461
Depreciation and amortization	1,297	1,229	1,194
Restructuring	67	19	(2)
(Income) expense from divestitures, asset impairments and unusual items	83	10	(78)
Total costs and expenses	11,798	11,350	10,399
Income from operations	1,851	2,028	2,116
Other income (expense):
Interest expense	(488)	(481)	(473)
Interest income	4	8	4
Equity in net losses of unconsolidated entities	(46)	(31)	(21)
Other, net	(18)	(4)	5
Total other income (expense)	(548)	(508)	(485)
Income before income taxes	1,303	1,520	1,631
Provision for income taxes	443	511	629
Consolidated net income	860	1,009	1,002
Less: Net income attributable to noncontrolling interests	43	48	49
Net income attributable to Waste Management, Inc.	$ 817	$ 961	$ 953
Basic earnings per common share	$ 1.76	$ 2.05	$ 1.98
Diluted earnings per common share	$ 1.76	$ 2.04	$ 1.98
Cash dividends declared per common share	$ 1.42	$ 1.36	$ 1.26