Benefit Plans (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Employee benefit plan contribution from Pfizer Inc.	$ 0	$ 3
Pension and other postretirement benefit expense	12	14	$ 14
Actuarial losses	6	21
Actuarial losses, net of tax	3	16
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Service cost	6	8	8
Interest cost	2	2	2
Expected return on plan assets	(3)	(3)	(3)
Amortization of net losses	1	1	2
Net periodic benefit cost	6	8	9
Company contributions	4	5
Contribution expense	$ (57)	(54)	(48)
Matching percentage	100.00%
Maximum matching percentage	5.00%
Additional contribution percentage, minimum	0.00%
Additional contribution percentage, maximum	8.00%
Other Pension Plan, Postretirement or Supplemental Plans
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
2020	$ 4
Contribution expense	(9)	(12)	(11)
Defined Benefit Plan, Expected Future Benefit Payment, Thereafter	39
United States
Defined Benefit Plan Disclosure [Line Items]
Total cost of service credit continuation	$ 38
Installment period	10 years
Pension and other postretirement benefit expense	$ 6	6
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Postretirement benefit expense	4	$ 4	$ 4
United States | Pfizer
Defined Benefit Plan Disclosure [Line Items]
Remaining total cost	$ 25
Foreign Plan
Defined Benefit Plan Disclosure [Line Items]
Period of amortization	6 years 6 months
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Expected contribution in 2020	$ 5
2020	4
2021	5
2022	6
2023	11
2024	7
Thereafter	$ 49