Accumulated Other Comprehensive Income - Reclassification (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net sales		$ 2,197	$ 1,901
Cost of products sold		(1,808)	(1,531)
Income before income taxes		152	179
Provision for income taxes		39	46
Net income		113	133
Total gains on cash flow hedges		5	8
(Gains) losses on cash flow hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total gains on cash flow hedges		(6)	(1)
Amortization of defined benefit plan items
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total gains on cash flow hedges		11	9
Reclassification out of Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net income		5	8
Reclassification out of Accumulated Other Comprehensive Income | (Gains) losses on cash flow hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total gains on cash flow hedges		(6)	(1)
Reclassification out of Accumulated Other Comprehensive Income | (Gains) losses on cash flow hedges | Commodities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net sales		2	0
Cost of products sold		(10)	(4)
Income before income taxes		(8)	(4)
Provision for income taxes		2	1
Net income		(6)	(3)
Reclassification out of Accumulated Other Comprehensive Income | (Gains) losses on cash flow hedges | Foreign exchange
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net sales		0	3
Cost of products sold		0	(1)
Income before income taxes		0	2
Provision for income taxes		0	0
Net income		0	2
Reclassification out of Accumulated Other Comprehensive Income | Amortization of defined benefit plan items
Accumulated Other Comprehensive Income (Loss) [Line Items]
Income before income taxes		12	11
Provision for income taxes		(1)	(2)
Net income		11	9
Actuarial losses (a)	[1]	24	24
Prior service credit (a)	[1]	$ (12)	$ (13)

[1] These accumulated other comprehensive income components are included in the computation of net periodic pension and postretirement costs. See Note L for further details.