Fair Value Measurements - Financial Assets and Liabilities at Fair Value (Details) - USD ($) $ in Millions		Oct. 02, 2016		Jan. 03, 2016
Financial assets and liabilities at fair value
Derivatives designated as hedging instruments : Assets		$ 272
Derivatives designated as hedging instruments : Liabilities		946
Available-for-sale Securities, Equity Securities	[1]	1,332		$ 1,494	[2]
Available-for-sale Securities	[3]	12,237		8,316	[2]
Quoted prices in active markets for identical assets and liabilities Level 1
Financial assets and liabilities at fair value
Derivatives designated as hedging instruments : Assets		0
Derivatives designated as hedging instruments : Liabilities		0
Available-for-sale Securities, Equity Securities		1,332	[1]	1,494
Available-for-sale Securities	[3]	0
Significant other observable inputs Level 2
Financial assets and liabilities at fair value
Derivatives designated as hedging instruments : Assets		272		480	[2]
Derivatives designated as hedging instruments : Liabilities		946		599	[2]
Available-for-sale Securities, Equity Securities	[1]	0
Available-for-sale Securities	[3]	12,237
Significant unobservable inputs Level 3
Financial assets and liabilities at fair value
Derivatives designated as hedging instruments : Assets		0
Derivatives designated as hedging instruments : Liabilities		0
Available-for-sale Securities, Equity Securities	[1]	0
Available-for-sale Securities	[3]	0
Interest Rate Contract
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount		2,200
Financial assets and liabilities at fair value
Derivatives designated as hedging instruments : Assets	[4],[5],[6]	50
Derivatives designated as hedging instruments : Liabilities	[6],[7],[8]	309
Derivative Assets, Noncurrent		35		20
Derivative Liabilities, Noncurrent		309		239
Interest Rate Contract | Quoted prices in active markets for identical assets and liabilities Level 1
Financial assets and liabilities at fair value
Derivatives designated as hedging instruments : Assets	[4],[5],[6]	0
Derivatives designated as hedging instruments : Liabilities	[6],[7],[8]	0
Interest Rate Contract | Significant other observable inputs Level 2
Financial assets and liabilities at fair value
Derivatives designated as hedging instruments : Assets	[4],[5],[6]	50		28	[2]
Derivatives designated as hedging instruments : Liabilities	[6],[7],[8]	309		241	[2]
Interest Rate Contract | Significant unobservable inputs Level 3
Financial assets and liabilities at fair value
Derivatives designated as hedging instruments : Assets	[4],[5],[6]	0
Derivatives designated as hedging instruments : Liabilities	[6],[7],[8]	0
Equity Contract
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount		400
Financial assets and liabilities at fair value
Derivatives designated as hedging instruments : Liabilities	[7],[9]	95
Derivative Liabilities, Noncurrent		16
Equity Contract | Quoted prices in active markets for identical assets and liabilities Level 1
Financial assets and liabilities at fair value
Derivatives designated as hedging instruments : Liabilities	[7],[9]	0
Equity Contract | Significant other observable inputs Level 2
Financial assets and liabilities at fair value
Derivatives designated as hedging instruments : Liabilities	[7],[9]	95		0	[2]
Equity Contract | Significant unobservable inputs Level 3
Financial assets and liabilities at fair value
Derivatives designated as hedging instruments : Liabilities	[7],[9]	0
Foreign exchange contracts
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount		35,000
Financial assets and liabilities at fair value
Derivatives designated as hedging instruments : Assets	[4]	222
Derivatives designated as hedging instruments : Liabilities	[7]	542
Derivatives not designated as hedging instruments : Assets	[4]	14
Derivatives not designated as hedging instruments : Liabilities	[7]	33
Foreign exchange contracts | Quoted prices in active markets for identical assets and liabilities Level 1
Financial assets and liabilities at fair value
Derivatives designated as hedging instruments : Assets	[4]	0
Derivatives designated as hedging instruments : Liabilities	[7]	0
Derivatives not designated as hedging instruments : Assets	[4]	0
Derivatives not designated as hedging instruments : Liabilities	[7]	0
Foreign exchange contracts | Significant other observable inputs Level 2
Financial assets and liabilities at fair value
Derivatives designated as hedging instruments : Assets	[4]	222		452	[2]
Derivatives designated as hedging instruments : Liabilities	[7]	542		358	[2]
Derivatives not designated as hedging instruments : Assets	[4]	14		33	[2]
Derivatives not designated as hedging instruments : Liabilities	[7]	33		41	[2]
Foreign exchange contracts | Significant unobservable inputs Level 3
Financial assets and liabilities at fair value
Derivatives designated as hedging instruments : Assets	[4]	0
Derivatives designated as hedging instruments : Liabilities	[7]	0
Derivatives not designated as hedging instruments : Assets	[4]	0
Derivatives not designated as hedging instruments : Liabilities	[7]	0
Cross Currency Interest Rate Contract [Member]
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount		2,300
Equity Securities [Member]
Financial assets and liabilities at fair value
Available-for-sale Securities, Equity Securities		544		528
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax		802		979
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax		14		$ 13
Other Current Assets [Member] | Equity Securities [Member]
Financial assets and liabilities at fair value
Available-for-sale Securities, Equity Securities		$ 345

[1] Classified as non-current other assets with the exception of $345 million of current other assets for October 2, 2016. The carrying amount of the equity investments were $544 million and $528 million as of October 2, 2016 and January 3, 2016, respectively. The unrealized gains were $802 million and $979 million as of October 2, 2016 and January 3, 2016, respectively. The unrealized losses were $14 million and $13 million as of October 2, 2016 and January 3, 2016, respectively

[2] 2015 assets and liabilities are all classified as Level 2 with the exception of equity investments of $1,494 million, which are classified as Level 1.

[3] Classified as current marketable securities

[4] Classified as other current assets

[5] Includes $35 million and $20 million of non-current other assets for October 2, 2016 and January 3, 2016, respectively.

[6] Includes cross currency interest rate swaps and interest rate swaps.

[7] Classified as accounts payable.

[8] Includes $309 million and $239 million of non-current other liabilities for October 2, 2016 and January 3, 2016, respectively.

[9] Includes $16 million of non-current other liabilities for October 2, 2016.