Accumulated Other Comprehensive (Loss) Income (Tables)

12 Months Ended

Dec. 31, 2011

Equity and Accumulated Other Comprehensive (Loss) Income [Abstract]

Changes in the accumulated other comprehensive (loss) income balances, net of related tax effects

	Foreign currency translation			Unrealized gains (losses) on hedging instruments			Unrecognized gains (losses) and prior service cost, net			Total accumulated other comprehensive (loss) income
	(in millions)
Balance at December 31, 2008	$	38		$	5		$	(375	)	$	(332	)
Period change		117			—			49			166
Balance at December 31, 2009		155			5			(326	)		(166	)
Period change		6			5			(101	)		(90	)
Balance at December 31, 2010		161			10			(427	)		(256	)
Period change		(28	)		(10	)		(160	)		(198	)
Balance at December 31, 2011	$	133		$	—		$	(587	)	$	(454	)