Quarterly report pursuant to Section 13 or 15(d)

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

v3.21.2
Fair Value Measurements - Schedule of Level 3 Investments at Fair Value (Details) - Level 3 - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Debt securities        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Balance, beginning of period $ 18 $ 46 $ 55 $ 75
Purchases of investments 0 5 5 23
Principal payments on investments 0 0 0 (2)
Sale of investments 0 0 (38) (53)
Realized gains on investments recorded in gain on sale of receivables and investments 0 0 0 5
Unrealized gains (losses) on investments recorded in OCI 0 1 (4) 4
Balance, end of period 18 52 18 52
Securitization residual assets        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Balance, beginning of period 188 135 159 122
Accretion of securitization residual assets 2 2 6 4
Purchases of investments 11 9 45 36
Principal payments on investments (2) (4) (8) (9)
Sale of investments 0 0 0 (21)
Unrealized gains (losses) on investments recorded in OCI (1) 0 (4) 10
Balance, end of period $ 198 $ 142 $ 198 $ 142