Acquisitions and Dispositions (Tables)

3 Months Ended

Mar. 31, 2012

Acquisitions and Dispositions

Consideration transferred and preliminary value of intangible assets

	Three months ended March 31,
(millions)	2012		2011
Consideration transferred:	$	21	$	3
Intangible assets:
Goodwill	$	19	$	1
Other intangible assets:	8		3
Total	$	27	$	4