Equity - Summary of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	Oct. 03, 2015	Jan. 03, 2015
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Foreign currency translation adjustments	$ (1,272)	$ (1,119)
Cash flow hedges — unrealized net gain (loss)	(29)	(24)
Postretirement and postemployment benefits:
Net experience loss	(15)	(18)
Prior service cost	(6)	(52)
Total accumulated other comprehensive income (loss)	$ (1,322)	$ (1,213)	[1]

[1] Condensed from audited financial statements.