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Collaborative And Other Arrangements Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
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Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Collaborative and Other Arrangements [Abstract] |  |  |  |
Cash Outflows and Accrued Up-front Payments Related to Collaborative and Other Similar Arrangements | $ 206 | $ 284 | $ 393 | $ 304
Up-front Collaboration and Licensing Expenses Related to Collaborative and Similar Arrangements | $ 165 | $ 160 | $ 291 | $ 160

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- Definition Cash Outflows and Accrued Up-front Payments Related to Collaborative and Other Similar Arrangements + References No definition available. + Details
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- Definition Up-front collaboration and licensing Expenses Related to Collaborative and Similar Arrangements + References No definition available. + Details
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