Costs Associated with Rationalization Programs - Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2018 USD ($) employee	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring reserve	$ 81	$ 213	$ 219	$ 103
Rationalizations	44	135	210
Rationalization reversals	19	13	9
Rationalization charges to date	720
Future rationalization charges expected	$ 12
Expected number of position to be released (in employees) | employee	550
Amiens Labor Claims
Restructuring Cost and Reserve [Line Items]
Loss contingency, number of plaintiffs | employee	850
Current Year Plans
Restructuring Cost and Reserve [Line Items]
Rationalizations	$ 40	83	189
Rationalization reversals	$ 1
Expected number of position to be released (in employees) | employee	500
Number of associates released | employee	150
Prior Year Plans
Restructuring Cost and Reserve [Line Items]
Rationalizations	$ 4	52	21
Rationalization reversals	$ 18
Number of associates released | employee	500
Reduce SAG Headcount
Restructuring Cost and Reserve [Line Items]
Restructuring reserve	$ 29
Reduce SAG Headcount | Current Year Plans
Restructuring Cost and Reserve [Line Items]
Rationalizations	28	25	34
Reduce SAG Headcount | Prior Year Plans
Restructuring Cost and Reserve [Line Items]
Rationalizations	3	7
Philippsburg Restructuring | Current Year Plans
Restructuring Cost and Reserve [Line Items]
Rationalizations			116
Philippsburg Restructuring | Prior Year Plans
Restructuring Cost and Reserve [Line Items]
Rationalizations	15	35
EMEA - Selling, Administrative, and General Employee Severance | Current Year Plans
Restructuring Cost and Reserve [Line Items]
Rationalizations		20
EMEA - Manufacturing Employee Severance | Current Year Plans
Restructuring Cost and Reserve [Line Items]
Rationalizations		30	25
EMEA - Manufacturing Employee Severance | Prior Year Plans
Restructuring Cost and Reserve [Line Items]
Rationalizations	3	8
Europe, Middle East, and Africa Restructuring Plan - Operating Efficiency
Restructuring Cost and Reserve [Line Items]
Restructuring reserve	46
Europe, Middle East, and Africa Restructuring Plan - Operating Efficiency | Current Year Plans
Restructuring Cost and Reserve [Line Items]
Rationalizations	$ 13	$ 8
Amiens Restructuring Plan | Prior Year Plans
Restructuring Cost and Reserve [Line Items]
Rationalizations			$ 12