Fair Value Measurements (Details Textuals) (USD $)	3 Months Ended			9 Months Ended
	Sep. 30, 2012		Oct. 02, 2011	Sep. 30, 2012		Oct. 02, 2011	Jan. 01, 2012
Derivative [Line Items]
Maximum Length of Time Hedged in Foreign Currency Cash Flow Hedge				18 months
Fair Value Measurements (Textuals)
Deferred net losses on derivatives included in accumulated other comprehensive income	$ 235,000,000			$ 235,000,000			$ 168,000,000
Reclassification of foreign exchange contracts into earnings, period				next 12 months
Other income/(expense), net, related to foreign exchange contracts, non hedging	35,000,000		(10,000,000)	9,000,000		(2,000,000)
Other investments	1,258,000,000	[1]		1,258,000,000	[1]
Weighted average rate on non-current debt	4.34%			4.34%
Foreign exchange contracts [Member]
Derivative [Line Items]
Notional amounts outstanding for forward foreign exchange contracts	24,900,000,000			24,900,000,000
Cross currency interest rate swaps [Member]
Derivative [Line Items]
Notional amounts outstanding for cross currency interest rate swaps	2,700,000,000			2,700,000,000
Non-current assets included into cross currency interest rate swaps	6,000,000			6,000,000			15,000,000
Non-current liabilities included into cross currency interest rate swaps	576,000,000			576,000,000			594,000,000
Fair Value, Inputs, Level 1 [Member]
Fair Value Measurements (Textuals)
Other investments	$ 1,258,000,000	[1]		$ 1,258,000,000	[1]		$ 1,563,000,000	[1],[2]

[1] Classified as non-current other assets.

[2] As of January 1, 2012, these assets and liabilities are classified as Level 2 with the exception of Other Investments of $1,563 million which are classified as Level 1.