Hedging Transactions And Derivative Financial Instruments (Amount Of Gain Reclassified From AOCI And Included In Earnings Related To Foreign Currency Forward Contracts) (Details) (Foreign Currency Forward Contracts [Member], USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Apr. 02, 2011
Contracts Designated As Cash Flow Hedging Instruments [Member]
Hedging Transactions And Derivative Financial Instruments [Line Items]
Other comprehensive income	$ 2	$ 3
Research And Development [Member] | Contracts Designated As Cash Flow Hedging Instruments [Member]
Hedging Transactions And Derivative Financial Instruments [Line Items]
Amount of gain (loss) on foreign currency forward contracts reclassified from accumulated other comprehensive income		1
Marketing, General, And Administrative [Member] | Contracts Designated As Cash Flow Hedging Instruments [Member]
Hedging Transactions And Derivative Financial Instruments [Line Items]
Amount of gain (loss) on foreign currency forward contracts reclassified from accumulated other comprehensive income		1
Other Income (Expense), Net [Member] | Contracts Not Designated As Hedging Instruments [Member]
Hedging Transactions And Derivative Financial Instruments [Line Items]
Other income, net	$ 1	$ 8