Costs Associated with Rationalization Programs - Roll-Forward of the Rationalization Liability Between Periods (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2017
Restructuring Reserve [Roll Forward]
Beginning balance		$ 219
2017 Charges		58
Incurred, including net Foreign Currency Translation of $15 million and $0 million, respectively		(40)
Reversed to the Statements of Operations	$ (1)	(2)
Ending balance	235	235
Associate-Related Costs
Restructuring Reserve [Roll Forward]
Beginning balance		214
2017 Charges		45
Incurred, including net Foreign Currency Translation of $15 million and $0 million, respectively		(27)
Reversed to the Statements of Operations		(2)
Ending balance	230	230
Foreign currency translation		15
Other Exit and Non-Cancelable Lease Costs
Restructuring Reserve [Roll Forward]
Beginning balance		5
2017 Charges		13
Incurred, including net Foreign Currency Translation of $15 million and $0 million, respectively		(13)
Reversed to the Statements of Operations		0
Ending balance	$ 5	5
Foreign currency translation		$ 0