Collaborative Arrangements - Moderna, Inc. (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Selling, general and administrative	$ 2,633	$ 2,731	$ 7,835	$ 7,952
Research and development	4,234	5,862	11,903	13,354
Accrued and other current liabilities	16,186		16,186		$ 15,694
Moderna, Inc. \| Collaborative Arrangement, Transaction with Party to Collaborative Arrangement
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Selling, general and administrative	7	5	19	11
Research and development	96	$ 93	272	$ 255
Accrued and other current liabilities	$ 13		$ 13		$ 57

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.

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