Acquisitions (Tables)

3 Months Ended

Jun. 30, 2012

Acquisitions [Abstract]

Adjustments to preliminary purchase price allocation

	December 31, 2011			Adjustments			June 30, 2012
Accounts and other receivables	$	70		$	1		$	71
Other current assets		28			—			28
Property and equipment		72			(2	)		70
Goodwill		327			1			328
Other intangible assets		87			—			87
Accounts payable		(82	)		—			(82	)
Accrued liabilities		(48	)		—			(48	)
Deferred income taxes, net		(10	)		1			(9	)
Other liabilities		(12	)		(1	)		(13	)
Total purchase price	$	432		$	—		$	432

Preliminary allocation purchase price intangible assets

	Amount		Weighted Average Amortization Periods (In Years)
Customer relationships	$	74	10.0
Vendor relationships		4	10.0
Trademarks		9	15.0
	$	87	10.5

Pro forma consolidated results of operations

	Three Months Ended June 30, 2011			Six Months Ended June 30, 2011
Operating revenues		$	3,488		$	6,721
Net income attributable to Waste Management, Inc. .			235			417
Basic earnings per common share			0.49			0.88
Diluted earnings per common share			0.49			0.87