Restructuring of Operations - Accrued Restructuring Costs and Activity, Including Noncurrent Portion (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2014
Restructuring Reserve [Roll Forward]
Beginning balance	$ 21	$ 25
Charges to restructuring	3	15
Adjustments of accruals	(1)	(1)
Cash payments	(5)	(21)
Currency impact	1	1
Ending Balance	19	19
Employee Termination Benefits [Member]
Restructuring Reserve [Roll Forward]
Beginning balance	11	14
Charges to restructuring	2	10
Adjustments of accruals	(1)	(1)
Cash payments	(4)	(15)
Currency impact	1	1
Ending Balance	9	9
Exit Costs [Member]
Restructuring Reserve [Roll Forward]
Beginning balance	10	11
Charges to restructuring	1	5
Adjustments of accruals
Cash payments	(1)	(6)
Currency impact
Ending Balance	$ 10	$ 10