Discontinued Operations - AbbVie (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2017	Mar. 31, 2016
Discontinued Operations, Disposed of by Means Other than Sale \| AbbVie
Discontinued Operations
Tax benefit related to the resolution of various tax positions related to prior years	$ (33)	$ (244)

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No definition available.

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