Other Revenue - Narrative (Details) $ in Millions	1 Months Ended		36 Months Ended
	Sep. 30, 2020 USD ($)	Apr. 30, 2020 USD ($)	Mar. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 participant
Disaggregation of Revenue [Line Items]
Number of participants | participant					30,000
Contract option exercised			$ 1,892	$ 2,711
DARPA
Disaggregation of Revenue [Line Items]
Award amount	$ 56
DARPA | Contract options
Disaggregation of Revenue [Line Items]
Amount committed for funding			3
Available funding			24
BARDA
Disaggregation of Revenue [Line Items]
Award amount		$ 483	1,700
Amount committed for funding			117
The Bill & Melinda Gates Foundation | Initial project
Disaggregation of Revenue [Line Items]
Available funding			6
Contract option exercised			$ 80