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Other Intangibles - Indefinite-Lived Intangible Assets Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 | Sep. 30, 2017 | Sep. 30, 2016
Indefinite-lived Intangible Assets [Line Items] |  |  |
In-process research and development impairment charges | $ 245 | $ 253 | $ 225
uprifosbuvir |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |
In-process research and development impairment charges | $ 240 | $ 240 |
House Dust Mite |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |
In-process research and development impairment charges |  |  | $ 112

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- Definition Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16373-109275 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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- Details
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