Quarterly report pursuant to Section 13 or 15(d)

Long-term Debt - Summary of Components of Senior Notes (Details)

v3.21.2
Long-term Debt - Summary of Components of Senior Notes (Details) - Senior Unsecured Notes - USD ($)
$ in Millions
Sep. 30, 2021
Dec. 31, 2020
Debt Instrument [Line Items]    
Principal $ 1,775 $ 1,275
Accrued interest 21 22
Unamortized premium (discount) (3) 2
Less: Unamortized financing costs (22) (16)
Carrying value of Convertible Senior Notes $ 1,771 $ 1,283