Postretirement Benefits (Changes In Postretirement Benefit Obligation, Plan Assets, Funded Status And Amounts Recognized In Balance Sheet And Accumulated Other Comprehensive (Loss) Income) (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 (gain) loss	(7)	(10)	(9)
Curtailments	0	(7)	0
Funded status, December 31	(322)	(449)
Current liability	(39)	(59)
Non-current liability	(283)	(390)
Amounts recognized in the consolidated balance sheet	(322)	(449)
Net actuarial loss (gain)	31	115
Prior service credit	(35)	(65)
Amounts recognized in accumulated other comprehensive income (pre-tax)	(4)	50
U.S. Postretirement Benefit Plans [Member] | Plan Assets [Member]
Defined Benefit Plan Disclosure [Line Items]
Participants’ contributions	(19)	(34)
Benefits paid	(82)	(107)
Fair value of plan assets, January 1	0	0
Company contributions	63	73
Participants’ contributions	(19)	(34)
Benefits paid	(82)	(107)
Fair value of plan assets, December 31	0	0
Foreign Postretirement Benefit Plan, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	2	0	0
Interest cost	5	1	2
Actuarial (gain) loss	0	0	0
Curtailments	0	0	0
Funded status, December 31	(72)	(22)
Current liability	(2)	(2)
Non-current liability	(70)	(20)
Amounts recognized in the consolidated balance sheet	(72)	(22)
Net actuarial loss (gain)	11	(1)
Prior service credit	0	0
Amounts recognized in accumulated other comprehensive income (pre-tax)	11	(1)
Foreign Postretirement Benefit Plan, Defined Benefit [Member] | Plan Assets [Member]
Defined Benefit Plan Disclosure [Line Items]
Participants’ contributions	0	(1)
Benefits paid	(1)	(2)
Fair value of plan assets, January 1	0	0
Company contributions	1	1
Participants’ contributions	0	(1)
Benefits paid	(1)	(2)
Fair value of plan assets, December 31	0	0
Benefit Obligation [Member] | U.S. Postretirement Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation, January 1	449	425
Service cost	2	3
Interest cost	14	20
Participants’ contributions	(19)	(34)
Actuarial (gain) loss	(80)	44
Acquisitions	0	108
Plan amendments	0	(63)
Benefits paid	(82)	(107)
Less: Federal subsidy	2	7
Restructuring	0	(17)
Curtailments	(2)	(5)
Benefit obligation, December 31	322	449
Participants’ contributions	(19)	(34)
Benefits paid	(82)	(107)
Defined Benefit Plan, Foreign Currency Exchange Rate Gain (Loss)	0	0
Benefit Obligation [Member] | Foreign Postretirement Benefit Plan, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation, January 1	22	23
Service cost	2	0
Interest cost	5	1
Participants’ contributions	0	(1)
Actuarial (gain) loss	12	10
Acquisitions	38	0
Plan amendments	0	0
Benefits paid	(1)	(2)
Less: Federal subsidy	0	0
Restructuring	0	0
Curtailments	0	(11)
Benefit obligation, December 31	72	22
Participants’ contributions	0	(1)
Benefits paid	(1)	(2)
Defined Benefit Plan, Foreign Currency Exchange Rate Gain (Loss)	$ (6)	$ 0