Commitments (Details) - Pfizer, Inc. - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Other Commitments [Line Items]
Reimbursement amount, tranche one	$ 380.0
Amounts incurred	30.4	$ 53.1
Amounts accrued	$ 26.9
Transition Service Agreements
Other Commitments [Line Items]
Limited transition services period	24 months