Accumulated Other Comprehensive Income (Loss) (Tables)

3 Months Ended

Mar. 31, 2012

Accumulated Other Comprehensive Income (Loss) [Abstract]

AOCI

		00000			00000		00000			00000			00000		00000		00000			00000
	Derivatives					Defined Benefit and Pension Plans						Foreign Currency Translation				AOCI
(millions)	2012			2011		2012			2011			2012		2011		2012			2011
Beginning balance	$	28		$	8	$	(221	)	$	(106	)	$	19	$	48	$	(174	)	$	(50	)
Other comprehensive income (loss), net of tax		(2	)		3		(2	)		(3	)		22		17		18			17
Ending balance	$	26		$	11	$	(223	)	$	(109	)	$	41	$	65	$	(156	)	$	(33	)