Intangible Assets (Schedule Of Intangible Assets) (Detail) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2015	Dec. 31, 2014
Finite And Indefinite Lived Intangible Assets [Line Items]
Amortized Intangible Assets, Gross Carrying Amount	$ 516	$ 434
Amortized Intangible Assets, Accumulated Amortization	144	112
Amortized Intangible Assets, Net Carrying Amount	372	322
Unamortized Intangible Assets, Goodwill, Gross Carrying Amount	964	842
License Agreements [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Amortized Intangible Assets, Gross Carrying Amount	261	259
Amortized Intangible Assets, Accumulated Amortization	74	59
Amortized Intangible Assets, Net Carrying Amount	187	200
Customer Relationships [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Amortized Intangible Assets, Gross Carrying Amount	213	167
Amortized Intangible Assets, Accumulated Amortization	63	50
Amortized Intangible Assets, Net Carrying Amount	150	117
Other Intangible Assets [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Amortized Intangible Assets, Gross Carrying Amount	42	8
Amortized Intangible Assets, Accumulated Amortization	7	3
Amortized Intangible Assets, Net Carrying Amount	35	5
Goodwill [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Goodwill, Translation Adjustments	54
Unamortized Intangible Assets, Goodwill, Gross Carrying Amount	964	842
Trademarks [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Unamortized Intangible Assets, Trademarks, Gross Carrying Amount	$ 550	$ 564