Consolidated Statement of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Apr. 01, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 444	$ 266
Other comprehensive income (loss), pre-tax:
Foreign currency translation adjustments, pre-tax	30	76
Cash flow hedges, pre-tax:
Reclassification to net income, pre-tax	2	2
Postretirement and postemployment benefits reclassification to net income, pre-tax:
Net experience loss	(1)	1
Other comprehensive income (loss), pre-tax	31	79
Other comprehensive income (loss), tax (expense) benefit
Foreign currency translation adjustments, tax (expense) benefit	19	9
Cash flow hedges, tax (expense) benefit:
Reclassification to net income, tax (expense) benefit	0	(1)
Postretirement and postemployment benefits reclassification to net income, tax (expense) benefit:
Net experience loss, tax (expense) benefit	0	0
Other comprehensive income (loss), tax (expense) benefit	19	8
Other comprehensive income (loss), after tax:
Foreign currency translation adjustments, after-tax	49	85
Cash flow hedges, after tax
Reclassification to net income, after-tax	2	1
Postretirement and postemployment benefits reclassification to net income, after-tax:
Net experience loss, after-tax	(1)	1
Other comprehensive income (loss)	50	87
Comprehensive income	$ 494	$ 353