Consolidated Statement of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 01, 2017	Jul. 02, 2016	Jul. 01, 2017	Jul. 02, 2016
Statement of Comprehensive Income [Abstract]
Net income	$ 282	$ 280	$ 544	$ 455
Other comprehensive income (loss), pre-tax:
Foreign currency translation adjustments, pre-tax	(66)	(48)	10	(103)
Cash flow hedges, pre-tax:
Unrealized gain (loss) on cash flow hedges, pre-tax		(3)		(60)
Reclassification to net income, pre-tax	2	6	4	8
Postretirement and postemployment benefit amounts arising during the period, pre-tax:
Prior service credit (cost), pre-tax		(1)		(1)
Postretirement and postemployment benefits reclassification to net income, pre-tax:
Net experience loss	0	1	1	2
Prior service cost		2		2
Other comprehensive income (loss), pre-tax	(64)	(43)	15	(152)
Other comprehensive income (loss), tax (expense) benefit
Foreign currency translation adjustments, tax (expense) benefit	57	(16)	66	13
Cash flow hedges, tax (expense) benefit:
Unrealized gain (loss) on cash flow hedges, tax (expense) benefit		1		24
Reclassification to net income, tax (expense) benefit	0	(2)	(1)	(3)
Postretirement and postemployment benefit amounts arising during the period, tax (expense) benefit:
Prior service credit (cost), tax (expense) benefit		0		0
Postretirement and postemployment benefits reclassification to net income, tax (expense) benefit:
Net experience loss, tax (expense) benefit	0	0	0	0
Prior service cost, tax (expense) benefit		0		0
Other comprehensive income (loss), tax (expense) benefit	57	(17)	65	34
Other comprehensive income (loss), after tax:
Foreign currency translation adjustments, after-tax	(9)	(64)	76	(90)
Cash flow hedges, after tax
Unrealized gain (loss) on cash flow hedges, after-tax		(2)		(36)
Reclassification to net income, after-tax	2	4	3	5
Postretirement and postemployment benefit amounts arising during the period, after-tax:
Prior service credit (cost), after-tax		(1)		(1)
Postretirement and postemployment benefits reclassification to net income, after-tax:
Net experience loss, after-tax	0	1	1	2
Prior service cost, after-tax		2		2
Other comprehensive income (loss)	(7)	(60)	80	(118)
Comprehensive income	$ 275	$ 220	$ 624	$ 337