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Commitments and Contingencies - Licenses to Patented Technology (Details) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Jan. 31, 2025	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Purchase of intangible asset		$ 10	$ 0	$ 0
Consideration paid		$ 88	$ 155	$ 301
National Institute of Allergy and Infectious Diseases member
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Purchase of intangible asset	$ 10

X

- Definition

The cash outflows from the purchase of net carrying value allocated to in-process research and development costs and materials acquired in a business combination.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-13

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X

- Definition

The cash outflow to acquire asset without physical form usually arising from contractual or other legal rights, excluding goodwill.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 13
-Subparagraph (c)
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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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