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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 |  |  |

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- 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 + Details
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- 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) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-13 + Details
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