Accumulated Other Comprehensive Income - Reclassification (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net sales	$ 3,046	$ 2,161	$ 5,243	$ 4,062
Cost of products sold	(2,466)	(1,732)	(4,274)	(3,263)
Income before income taxes	(201)	(201)	(353)	(380)
Provision for income taxes	(55)	(53)	(94)	(99)
Net income	(147)	(148)	(260)	(281)
Total gains on cash flow hedges			10	7
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total gains on cash flow hedges			(12)	(10)
Amortization of defined benefit plan items
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total gains on cash flow hedges			22	17
Reclassification out of Accumulated Other Comprehensive Income | Amortization of defined benefit plan items
Accumulated Other Comprehensive Income (Loss) [Line Items]
Income before income taxes	(11)	(12)	(23)	(23)
Provision for income taxes	0	(4)	(1)	(6)
Net income	$ (11)	$ (8)	$ (22)	$ (17)