Costs Associated with Rationalization Programs - Schedule of Net Rationalization Charges Included in Income Before Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Restructuring Cost and Reserve [Line Items]
Rationalizations	$ 44	$ 135	$ 210
Asset Write-off and Accelerated Depreciation Charges	4	40	20
Benefit Plan Curtailments and Settlements
Restructuring Cost and Reserve [Line Items]
Rationalizations	(1)	13	1
Current Year Plans
Restructuring Cost and Reserve [Line Items]
Rationalizations	40	83	189
Current Year Plans | Associate Severance and Other Related Costs
Restructuring Cost and Reserve [Line Items]
Rationalizations	40	81	188
Current Year Plans | Other Exit and Non-Cancelable Lease Costs
Restructuring Cost and Reserve [Line Items]
Rationalizations	0	2	1
Prior Year Plans
Restructuring Cost and Reserve [Line Items]
Rationalizations	4	52	21
Prior Year Plans | Associate Severance and Other Related Costs
Restructuring Cost and Reserve [Line Items]
Rationalizations	(11)	9	5
Prior Year Plans | Benefit Plan Curtailments and Settlements
Restructuring Cost and Reserve [Line Items]
Rationalizations	(1)	13	1
Prior Year Plans | Other Exit and Non-Cancelable Lease Costs
Restructuring Cost and Reserve [Line Items]
Rationalizations	$ 16	$ 30	$ 15