Costs Associated with Rationalization Programs - Narrative (Details) $ in Millions		1 Months Ended	3 Months Ended		6 Months Ended
	Jun. 30, 2017 USD ($) employee	Jul. 31, 2017 employee	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)	Dec. 31, 2017 USD ($)	Jun. 30, 2017 USD ($) employee	Jun. 30, 2016 USD ($)	Dec. 31, 2016 USD ($)
Restructuring Cost and Reserve [Line Items]
Rationalizations accrual balance	$ 235		$ 235			$ 235		$ 219
Expected number of job reductions | employee						1,100
Rationalization payments						$ 54	$ 52
Rationalizations			27	$ 48		56	59
Rationalization reversals			1			2
Rationalization charges incurred to date								$ 595
Rationalization charges expected to be incurred in future periods	80		80			$ 80
Current Year Plans
Restructuring Cost and Reserve [Line Items]
Expected number of job reductions | employee						300
Rationalizations			3	43		$ 26	43
Number of associates released | employee						50
Prior Year Plans
Restructuring Cost and Reserve [Line Items]
Rationalizations			24	5		$ 30	16
Number of associates released | employee						200
Philippsburg Restructuring
Restructuring Cost and Reserve [Line Items]
Rationalizations accrual balance	$ 128		128			$ 128
Expected number of job reductions | employee	890
Philippsburg Restructuring | Prior Year Plans
Restructuring Cost and Reserve [Line Items]
Rationalizations			18			20
EMEA Restructuring, Manufacturing Employee Severance
Restructuring Cost and Reserve [Line Items]
Rationalizations accrual balance	$ 36		36			36
EMEA Restructuring, SAG Employee Severance
Restructuring Cost and Reserve [Line Items]
Rationalizations accrual balance	18		18			18
SAG Employee Severance
Restructuring Cost and Reserve [Line Items]
Rationalizations accrual balance	$ 17		17			17
SAG Employee Severance | Current Year Plans
Restructuring Cost and Reserve [Line Items]
Rationalizations			2			19
Supply Chain Restructuring | Current Year Plans
Restructuring Cost and Reserve [Line Items]
Rationalizations			1			7
Wolverhampton Restructuring Plan | Prior Year Plans
Restructuring Cost and Reserve [Line Items]
Rationalizations			$ 2			$ 5
Amiens Restructuring | Prior Year Plans
Restructuring Cost and Reserve [Line Items]
Rationalizations				$ 3			$ 9
Amiens Labor Claims | Amiens Restructuring
Restructuring Cost and Reserve [Line Items]
Loss contingency, number of plaintiffs | employee						850
Subsequent Event | Philippsburg Restructuring
Restructuring Cost and Reserve [Line Items]
Number of associates released | employee		600
Scenario, Forecast | Philippsburg Restructuring
Restructuring Cost and Reserve [Line Items]
Rationalization payments					$ 120