Fair Value Measurements (Details 1) (USD $) In Millions, unless otherwise specified	Apr. 01, 2012		Jan. 01, 2012
Financial assets and liabilities at fair value
Derivatives designated as hedging instruments : Assets	$ 249
Derivatives designated as hedging instruments : Liabilities	827
Derivatives not designated as hedging instruments : Assets	23
Equity method investments, fair market disclosure	1,739	[1]	1,563
Quoted prices in active markets for identical assets and liabilities Level 1 [Member]
Financial assets and liabilities at fair value
Derivatives designated as hedging instruments : Assets	0
Derivatives designated as hedging instruments : Liabilities	0
Derivatives not designated as hedging instruments : Assets	0
Equity method investments, fair market disclosure	1,739	[1]	1,563	[1],[2]
Significant other observable inputs Level 2 [Member]
Financial assets and liabilities at fair value
Derivatives designated as hedging instruments : Assets	249		457	[2]
Derivatives designated as hedging instruments : Liabilities	827		1,046	[2]
Derivatives not designated as hedging instruments : Assets	23		46	[2]
Equity method investments, fair market disclosure	0
Significant unobservable inputs Level 3 [Member]
Financial assets and liabilities at fair value
Derivatives designated as hedging instruments : Assets	0
Derivatives designated as hedging instruments : Liabilities	0
Derivatives not designated as hedging instruments : Assets	0
Equity method investments, fair market disclosure	0
Cross currency interest rate swaps [Member]
Financial assets and liabilities at fair value
Derivatives designated as hedging instruments : Assets	8	[3]
Derivatives designated as hedging instruments : Liabilities	537	[4]
Derivative Assets, Noncurrent	6		15
Derivative Liabilities, Noncurrent	536		594
Cross currency interest rate swaps [Member] | Quoted prices in active markets for identical assets and liabilities Level 1 [Member]
Financial assets and liabilities at fair value
Derivatives designated as hedging instruments : Assets	0
Derivatives designated as hedging instruments : Liabilities	0
Cross currency interest rate swaps [Member] | Significant other observable inputs Level 2 [Member]
Financial assets and liabilities at fair value
Derivatives designated as hedging instruments : Assets	8	[3]	15	[2],[3]
Derivatives designated as hedging instruments : Liabilities	537	[4]	594	[2],[4]
Cross currency interest rate swaps [Member] | Significant unobservable inputs Level 3 [Member]
Financial assets and liabilities at fair value
Derivatives designated as hedging instruments : Assets	0
Derivatives designated as hedging instruments : Liabilities	0
Foreign exchange contracts [Member]
Financial assets and liabilities at fair value
Derivatives designated as hedging instruments : Assets	241
Derivatives designated as hedging instruments : Liabilities	290
Derivatives not designated as hedging instruments : Assets	23
Derivatives not designated as hedging instruments : Liabilities	19
Foreign exchange contracts [Member] | Quoted prices in active markets for identical assets and liabilities Level 1 [Member]
Financial assets and liabilities at fair value
Derivatives designated as hedging instruments : Assets	0
Derivatives designated as hedging instruments : Liabilities	0
Derivatives not designated as hedging instruments : Assets	0
Derivatives not designated as hedging instruments : Liabilities	0
Foreign exchange contracts [Member] | Significant other observable inputs Level 2 [Member]
Financial assets and liabilities at fair value
Derivatives designated as hedging instruments : Assets	241		442	[2]
Derivatives designated as hedging instruments : Liabilities	290		452	[2]
Derivatives not designated as hedging instruments : Assets	23		29	[2]
Derivatives not designated as hedging instruments : Liabilities	19		34	[2]
Foreign exchange contracts [Member] | Significant unobservable inputs Level 3 [Member]
Financial assets and liabilities at fair value
Derivatives designated as hedging instruments : Assets	0
Derivatives designated as hedging instruments : Liabilities	0
Derivatives not designated as hedging instruments : Assets	0
Derivatives not designated as hedging instruments : Liabilities	0
Swiss Franc Option [Member]
Financial assets and liabilities at fair value
Derivatives not designated as hedging instruments : Assets	0
Swiss Franc Option [Member] | Quoted prices in active markets for identical assets and liabilities Level 1 [Member]
Financial assets and liabilities at fair value
Derivatives not designated as hedging instruments : Assets	0
Swiss Franc Option [Member] | Significant other observable inputs Level 2 [Member]
Financial assets and liabilities at fair value
Derivatives not designated as hedging instruments : Assets	0		17	[2],[5]
Swiss Franc Option [Member] | Significant unobservable inputs Level 3 [Member]
Financial assets and liabilities at fair value
Derivatives not designated as hedging instruments : Assets	$ 0

[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.

[3] Includes $6 million and $15 million of non-current assets for April 1, 2012 and January 1, 2012, respectively.

[4] Includes $536 million and $594 million of non-current liabilities for April 1, 2012 and January 1, 2012, respectively.

[5] Currency option related to the planned acquisition of Synthes, Inc., which expired in January 2012.