Intangible Assets (Schedule Of Intangible Assets) (Detail) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
Finite And Indefinite Lived Intangible Assets [Line Items]
Amortized Intangible Assets, Gross Carrying Amount	$ 438	$ 440
Amortized Intangible Assets, Accumulated Amortization	108	88
Amortized Intangible Assets, Net Carrying Amount	330	352
Unamortized Intangible Assets, Goodwill, Gross Carrying Amount	683	691
License Agreements [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Amortized Intangible Assets, Gross Carrying Amount	260	272
Amortized Intangible Assets, Accumulated Amortization	59	52
Amortized Intangible Assets, Net Carrying Amount	201	220
Customer Relationships [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Amortized Intangible Assets, Gross Carrying Amount	170	166
Amortized Intangible Assets, Accumulated Amortization	47	35
Amortized Intangible Assets, Net Carrying Amount	123	131
Other Intangible Assets [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Amortized Intangible Assets, Gross Carrying Amount	8	2
Amortized Intangible Assets, Accumulated Amortization	2	1
Amortized Intangible Assets, Net Carrying Amount	6	1
Goodwill [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Goodwill, Translation Adjustments	37
Unamortized Intangible Assets, Goodwill, Gross Carrying Amount	683	691
Trademarks [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Unamortized Intangible Assets, Trademarks, Gross Carrying Amount	$ 567	$ 571