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Acquisition, Collaborations and Other Arrangements - Gadeta B.V. (Details) € in Millions, $ in Millions	3 Months Ended
	Sep. 30, 2018 EUR (€)	Sep. 30, 2018 USD ($)	Jul. 19, 2018 USD ($)	Dec. 31, 2017 USD ($)
Acquisition, Collaboration and Other Arrangements [Abstract]
Option Payout Upon Exercise | €	€ 300
Noncontrolling Interest in Variable Interest Entity			$ 82
Research and Development in Process			117
Goodwill		$ 4,117	$ 0	$ 4,159

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- Definition

Acquisition, Collaboration and Other Arrangements [Abstract]

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Collaborative Arrangement-Potential Option Payout Upon Exercise

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
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Fair value portion of assets, excluding financial assets and goodwill, that lack physical substance, having a projected indefinite period of benefit.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
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Portion of equity (net assets) in a variable interest entity (VIE) not attributable, directly or indirectly, to the parent entity. That is, this is the portion of equity in a VIE that is attributable to the noncontrolling interest (previously referred to as minority interest).

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