Restructuring (Summary Of Changes To Restructuring-Related Liabilities) (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Restructuring Reserve [Roll Forward]
September 30, 2014			$ 22
Restructuring expense	8	14	16	39
Cash payment/utilization			(24)
Balance as of September 30, 2014	14		14
North America
Restructuring Reserve [Roll Forward]
September 30, 2014			1
Restructuring expense			3
Cash payment/utilization			(3)
Balance as of September 30, 2014	1		1
International
Restructuring Reserve [Roll Forward]
September 30, 2014			21
Restructuring expense			13
Cash payment/utilization			(21)
Balance as of September 30, 2014	13		13
Personnel Related
Restructuring Reserve [Roll Forward]
September 30, 2014			17
Restructuring expense			16
Cash payment/utilization			(22)
Balance as of September 30, 2014	11		11
Facility Related
Restructuring Reserve [Roll Forward]
September 30, 2014			5
Restructuring expense			0
Cash payment/utilization			2
Balance as of September 30, 2014	$ 3		$ 3