Income Taxes (Details 4) (USD $)	12 Months Ended
	Dec. 31, 2011 Month	Dec. 31, 2010	Dec. 31, 2009
Income Taxes
Unused foreign tax credits expiring in 2017 through 2021	$ 338,000,000	$ 312,000,000
Unused research tax credits expiring from 2013 to 2031	18,000,000
Alternative minimum tax credits	29,000,000
Operating and capital loss carryforwards with indefinite life	110,000,000
Operating and capital loss carryforwards expiring between 2012 and 2031	328,000,000
Equity in undistributed earnings of foreign subsidiaries	2,000,000,000
Reconciliation of the Company's total gross unrecognized tax benefits
Balance at beginning of the period	143,000,000	120,000,000	90,000,000
Additions and reductions for tax positions of prior years	(15,000,000)	26,000,000	19,000,000
Additions based on tax positions related to the current year	30,000,000	5,000,000	11,000,000
Additions for tax positions of prior years on acquisitions		12,000,000
Reduction due to lapse of the applicable statute of limitations	(8,000,000)	(1,000,000)	(2,000,000)
Reductions due to settlements	(18,000,000)	(13,000,000)
Foreign currency translation	(7,000,000)	(6,000,000)	2,000,000
Balance at ending of the period	125,000,000	143,000,000	120,000,000
Unrecognized tax benefits, which if recognized, would impact the Company's effective income tax rate	114,000,000	125,000,000	89,000,000
Accrued interest and penalties	49,000,000	36,000,000	22,000,000
Interest and penalties included in tax expense	18,000,000	4,000,000	10,000,000
Decrease in unrecognized tax benefits related to audit settlements or statute expirations	$ 70,000,000
Period during which unrecognized tax benefits are reasonably possible of being settled as a result of audit settlements or statute expirations (in months)	12