Costs Associated with Rationalization Programs - Roll-Forward of the Rationalization Liability Between Periods (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Restructuring Reserve [Roll Forward]
Beginning balance	$ 81
2019 Charges	104
Incurred, including net Foreign Currency Translation of $(3) million and $0 million, respectively	(21)
Reversed to the Statement of Operations	(2)	$ (5)
Ending balance	162
Rationalizations	103	37
Current Year Plans
Restructuring Reserve [Roll Forward]
Rationalizations	100	31
Associate Severance and Other Related Costs
Restructuring Reserve [Roll Forward]
Beginning balance	80
2019 Charges	100
Incurred, including net Foreign Currency Translation of $(3) million and $0 million, respectively	(17)
Reversed to the Statement of Operations	(2)
Ending balance	161
Foreign currency translation gain (loss)	(3)
Associate Severance and Other Related Costs | Current Year Plans
Restructuring Reserve [Roll Forward]
Rationalizations	98	31
Other Exit Costs
Restructuring Reserve [Roll Forward]
Beginning balance	1
2019 Charges	4
Incurred, including net Foreign Currency Translation of $(3) million and $0 million, respectively	(4)
Reversed to the Statement of Operations	0
Ending balance	1
Foreign currency translation gain (loss)	0
Other Exit Costs | Current Year Plans
Restructuring Reserve [Roll Forward]
Rationalizations	1	$ 0
Benefit Plan Curtailments and Settlements | Current Year Plans
Restructuring Reserve [Roll Forward]
Rationalizations	$ 1