Term Borrowings - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Loss on debt extinguishment	$ 0	$ 0	$ 26
Junior Subordinated Debt
Debt Instrument [Line Items]
Debt term	30 years
Debt redeemed			$ 94
Loss on debt extinguishment	$ 26