v3.26.1
Commitments and Contingencies - Licenses to Patented Technology (Details) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended 6 Months Ended
Jan. 31, 2025
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Lessee, Lease, Description [Line Items]          
Payments to acquire intangible assets       $ 0 $ 10
Consideration paid   $ 11 $ 6 906 $ 11
National Institute of Allergy and Infectious Diseases member          
Lessee, Lease, Description [Line Items]          
Payments to acquire intangible assets $ 10        
Arbutus Biopharma Corporation (Arbutus) and Genevant Sciences GmbH (Genevant)          
Lessee, Lease, Description [Line Items]          
Amount awarded to other party   $ 6   $ 884