Intangible Assets (Schedule Of Intangible Assets) (Detail) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Finite And Indefinite Lived Intangible Assets [Line Items]
Amortized Intangible Assets, Gross Carrying Amount	$ 518	$ 434
Amortized Intangible Assets, Accumulated Amortization	130	112
Amortized Intangible Assets, Net Carrying Amount	388	322
Unamortized Intangible Assets, Goodwill, Gross Carrying Amount	971	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	66	59
Amortized Intangible Assets, Net Carrying Amount	195	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	58	50
Amortized Intangible Assets, Net Carrying Amount	155	117
Other Intangible Assets [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Amortized Intangible Assets, Gross Carrying Amount	44	8
Amortized Intangible Assets, Accumulated Amortization	6	3
Amortized Intangible Assets, Net Carrying Amount	38	5
Goodwill [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Goodwill, Translation Adjustments	43
Unamortized Intangible Assets, Goodwill, Gross Carrying Amount	971	842
Trademarks [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Unamortized Intangible Assets, Trademarks, Gross Carrying Amount	$ 558	$ 564