Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Schedule of Level??3 Investments at Fair Value (Details)

v3.22.4
Fair Value Measurements - Schedule of Level 3 Investments at Fair Value (Details) - Level 3 - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Debt Securities    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Balance, beginning of period $ 18 $ 55
Purchases of investments 2 5
Sale of investments (7) (38)
Unrealized gains (losses) on investments recorded in OCI (3) (4)
Balance, end of period 10 18
Securitization residual assets    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Balance, beginning of period 210 159
Accretion of securitization residual assets 17 9
Purchases of investments 29 61
Collections of securitization residual assets (16) (17)
Unrealized gains (losses) on investments recorded in OCI (63) (2)
Balance, end of period $ 177 $ 210