Restructuring (Summary Of Changes To Restructuring-Related Liabilities) (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended			6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013		Jun. 30, 2014	Jun. 30, 2013
Restructuring Reserve [Roll Forward]
June 30, 2014				$ 22
Restructuring expense	1	15	[1]	8	25	[1]
Cash payment/utilization				(18)
Balance as of June 30, 2014	12			12
North America
Restructuring Reserve [Roll Forward]
June 30, 2014				1
Restructuring expense				2
Cash payment/utilization				(2)
Balance as of June 30, 2014	1			1
International
Restructuring Reserve [Roll Forward]
June 30, 2014				21
Restructuring expense				6
Cash payment/utilization				(16)
Balance as of June 30, 2014	11			11
Personnel Related
Restructuring Reserve [Roll Forward]
June 30, 2014				17
Restructuring expense				8
Cash payment/utilization				(18)
Balance as of June 30, 2014	7			7
Facility Related
Restructuring Reserve [Roll Forward]
June 30, 2014				5
Restructuring expense				0
Cash payment/utilization				0
Balance as of June 30, 2014	$ 5			$ 5

[1] (c) Includes unallocated corporate overhead which is not attributable to a particular segment.