Postretirement Benefits (Components Of Postretirement Benefit Expense) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Defined Benefit Plan Disclosure [Line Items]
Curtailments	$ 7
U.S. Postretirement Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	2	3	2
Interest cost	14	20	21
Actuarial loss	7	10	9
Amortization of prior service credits	(24)	(30)	(25)
Curtailments	0	(7)	0
Net periodic pension expense	(1)	(4)	7
Foreign Postretirement Benefit Plan, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	2	0	0
Interest cost	5	1	2
Actuarial loss	0	0	0
Amortization of prior service credits	0	0	0
Curtailments	0	0	0
Net periodic pension expense	$ 7	$ 1	$ 2