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Collaborative Arrangements - Eisai Co., Ltd. - Narrative (Details) - Alliance revenue - Lenvima - USD ($)	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2025
Licenses and Other
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Finite-lived intangible assets		$ 261,000,000
Eisai | Collaborative Arrangement, Transaction with Party to Collaborative Arrangement
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Sales based milestone payments	$ 125,000,000
Sales milestone payments		2,300,000,000
Aggregate, regulatory milestones payments, maximum		$ 0

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- Definition

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- Definition

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- Definition

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 808
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482665/350-30-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 926
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-Section 50
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