Investments in Unconsolidated VIEs (Details) - Variable Interest Entity, Not Primary Beneficiary - Navitor Pharmaceuticals, Inc. - USD ($) $ in Millions	1 Months Ended
Apr. 30, 2020	Sep. 30, 2020
Variable Interest Entity [Line Items]
Agreement termination notice period	30 days
Threshold for development costs payments	$ 50
Payment for option issue fee	10
Investments	$ 15	$ 15
VIE, qualitative or quantitative information, ownership percentage	13.00%

Collaborative Arrangement, Payment For Option Issue Fee

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- Definition

Collaborative Arrangement, Threshold For Development Costs Payments

+ References

No definition available.

+ Details

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- Definition

Variable Interest Entity, Agreement Termination Notice, Period

+ References

No definition available.

+ Details

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- Definition

Cost of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). Excludes equity method investment and investment in equity security without readily determinable fair value.

+ References

No definition available.

+ 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.

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- Definition

Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 5A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=121559654&loc=SL6759159-111685

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- Details

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