Income Taxes (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended	12 Months Ended
	Apr. 02, 2011	Jun. 30, 2012	Dec. 31, 2011
Income Tax Expense (Benefit) [Abstract]
Valuation allowance		$ 364	$ 366
Valuation allowance - deferred tax assets relating to non-U.S subsidiaries		335	336
Tax benefit related to reversal of valuation allowance	244
Unrecognized tax benefits		159	191
Unrecognized tax benefits that would impact effective tax rate if recognized		117	150
Reduction in unrecognized tax benefits during period resulting from settlements with tax authorities		31
Portion of reduction in unrecognized tax benefits for settlements recognized as a tax benefit		13
Unrecognized tax charge with potential to be recognized in next 12 months, lower end of range		50
Unrecognized tax benefits with potential to be recognized in next 12 months, higher end of range		50
Change in cash payment of unrecognized tax benefits, lower end of range		0
Change in cash payment of unrecognized tax benefits, upper end of range		$ 25