Acquisitions and Divestitures (Tables)

12 Months Ended

Dec. 31, 2012

Adjustments to Preliminary Purchase Price Allocation

The following table shows adjustments since September 30, 2011 to the allocation of the purchase price of Oakleaf to the assets acquired and liabilities assumed based on their estimated fair value; this allocation was finalized as of September 30, 2012 (in millions):

	September 30, 2011			Adjustments			September 30, 2012
Accounts and other receivables	$	68		$	3		$	71
Other current assets		28			—			28
Property and equipment		77			(7	)		70
Goodwill		320			8			328
Other intangible assets		92			(5	)		87
Accounts payable		(80	)		(2	)		(82	)
Accrued liabilities		(48	)		—			(48	)
Deferred income taxes, net		(13	)		4			(9	)
Other liabilities		(12	)		(1	)		(13	)
Total purchase price	$	432		$	—		$	432

Preliminary Allocation Purchase Price Intangible Assets

The following table presents the final allocation of the purchase price to intangible assets (amounts in millions, except for amortization periods):

	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 Consolidate Results of Operations

The following pro forma consolidated results of operations have been prepared as if the acquisition of Oakleaf occurred at January 1, 2010 (in millions, except per share amounts):

	Years Ended December 31,
	2011		2010
Operating revenues	$	13,693	$	13,059
Net income attributable to Waste Management, Inc.		955		935
Basic earnings per common share		2.03		1.95
Diluted earnings per common share		2.03		1.94