Derivative Financial Instruments -Summary of Derivatives Not Designated as Hedging Instruments (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Derivative [Line Items]
Derivative, Notional Amount	$ 3,351	$ 3,434
Interest Rate Cap | Not Designated as Hedging Instrument, Economic Hedge
Derivative [Line Items]
Derivative, Notional Amount	1,000	1,850
Constant Maturity Treasury Interest Rate Swaps | Not Designated as Hedging Instrument, Economic Hedge
Derivative [Line Items]
Derivative, Notional Amount	0	500
Economic Hedges [Member] | Not Designated as Hedging Instrument, Economic Hedge
Derivative [Line Items]
Derivative, Notional Amount	$ 1,000	$ 2,350