Collateral Finance and Securitization Notes Collateral Finance and Securitization Notes (List of Collateral Finance and Securitization Notes) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Collateralized Financings	$ 180	$ 388
Debt Issuance Cost	(28)	(24)
Timerberlake Financial [Member]
Collateralized Financings	181	247
Chesterfield Financial Holdings LLC [Member]
Collateralized Financings	0	143
Secured Debt [Member]
Debt Issuance Cost	$ (1)	$ (2)

Amount of unamortized debt discount (premium) and debt issuance costs.

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