Equity - Summary of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	Oct. 01, 2016	Jan. 02, 2016
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Foreign currency translation adjustments	$ (1,417)	$ (1,314)
Cash flow hedges — unrealized net gain (loss)	(70)	(39)
Postretirement and postemployment benefits:
Net experience loss	(13)	(16)
Prior service cost	(5)	(7)
Total accumulated other comprehensive income (loss)	$ (1,505)	$ (1,376)	[1]

[1] Condensed from audited financial statements.