Fair Value Measurements - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 01, 2017	Jan. 03, 2016	Dec. 28, 2014
Derivative [Line Items]
Foreign currency translation	$ (612)	$ (3,632)	$ (4,601)
Deferred net losses (gains) on derivatives included in accumulated other comprehensive income	$ (285)
Maximum length of time for hedging transaction exposure	18 months
Other income/(expense), net, related to foreign exchange contracts, non hedging	$ (56)	(34)
Foreign exchange contracts
Derivative [Line Items]
Derivative, notional amount	36,000
Cross currency interest rate swaps
Derivative [Line Items]
Derivative, notional amount	2,300
Interest Rate Contract
Derivative [Line Items]
Derivative, notional amount	1,800
Non-current assets included in interest rate contracts	23	20
Non-current liabilities included in interest rate contracts	382	239
Equity Contract [Member]
Derivative [Line Items]
Derivative, notional amount	300
Level 1
Fair Value Measurements (Textuals)
Other investments	1,209	1,494
Equity Securities
Derivative [Line Items]
Equity investments	520	528
Unrealized Gain	757	979
Unrealized loss	68	$ 13
Other Current Assets [Member] | Equity Securities
Derivative [Line Items]
Equity investments	332
Other Comprehensive Income (Loss) [Member]
Derivative [Line Items]
Foreign currency translation	$ 375