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Intangible Assets (Schedule Of Intangible Assets) (Detail) - USD ($) $ in Millions | Sep. 30, 2016 | Dec. 31, 2015
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Finite And Indefinite Lived Intangible Assets [Line Items] |  |
Amortized Intangible Assets, Gross Carrying Amount | $ 534 | $ 526
Amortized Intangible Assets, Accumulated Amortization | 201 | 157
Amortized Intangible Assets, Net Carrying Amount | 333 | 369
Unamortized Intangible Assets, Goodwill, Gross Carrying Amount | 1,013 | 973
License Agreements [Member] |  |
Finite And Indefinite Lived Intangible Assets [Line Items] |  |
Amortized Intangible Assets, Gross Carrying Amount | 269 | 263
Amortized Intangible Assets, Accumulated Amortization | 104 | 81
Amortized Intangible Assets, Net Carrying Amount | 165 | 182
Customer Relationships [Member] |  |
Finite And Indefinite Lived Intangible Assets [Line Items] |  |
Amortized Intangible Assets, Gross Carrying Amount | 226 | 222
Amortized Intangible Assets, Accumulated Amortization | 86 | 68
Amortized Intangible Assets, Net Carrying Amount | 140 | 154
Other Intangible Assets [Member] |  |
Finite And Indefinite Lived Intangible Assets [Line Items] |  |
Amortized Intangible Assets, Gross Carrying Amount | 39 | 41
Amortized Intangible Assets, Accumulated Amortization | 11 | 8
Amortized Intangible Assets, Net Carrying Amount | 28 | 33
Goodwill [Member] |  |
Finite And Indefinite Lived Intangible Assets [Line Items] |  |
Unamortized Intangible Assets, Goodwill, Gross Carrying Amount | 1,013 | 973
Trademarks [Member] |  |
Finite And Indefinite Lived Intangible Assets [Line Items] |  |
Unamortized Intangible Assets, Trademarks, Gross Carrying Amount | $ 552 | $ 548

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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