Restructuring and Other (Components of Outstanding Restructuring Reserve and Movements) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Restructuring Reserve [Roll Forward]
Provision	$ 2	$ 1	$ 3	$ 1
2015 European Division Actions [Member]
Restructuring Reserve [Roll Forward]
Balance at beginning of period			17
Provision			0
Payments			(1)
Foreign currency translation			(1)
Balance at end of period	15		15
Termination Benefits [Member] | 2015 European Division Actions [Member]
Restructuring Reserve [Roll Forward]
Balance at beginning of period			17
Provision			0
Payments			(1)
Foreign currency translation			(1)
Balance at end of period	15		15
Other Exit Costs [Member] | 2015 European Division Actions [Member]
Restructuring Reserve [Roll Forward]
Balance at beginning of period			0
Provision			0
Payments			0
Foreign currency translation			0
Balance at end of period	$ 0		$ 0