Commitments (Details) - Pfizer, Inc. - USD ($) $ in Millions	12 Months Ended	14 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2021
Other Commitments [Line Items]
Reimbursement amount, tranche one	$ 380.0
Amounts incurred	$ 5.5	$ 54.5	$ 30.4	$ 143.5

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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