Investment Securities - Investment Securities, Narrative (Details)	12 Months Ended
	Dec. 31, 2024 USD ($) security	Dec. 31, 2023 USD ($) security	Dec. 31, 2022 USD ($)
Schedule of Investments [Line Items]
Debt Securities, Available-for-Sale, Realized Gain | $	$ 1,000,000	$ 2,000,000
Debt Securities, Available-for-Sale, Realized Loss | $		(3,000,000)
Gross unrealized loss | $	$ 0	$ 0	$ (2,000,000)
Collateralized Debt Obligations
Schedule of Investments [Line Items]
Number of securities continuous unrealized loss position more than twelve months	223	84
Capital trust notes
Schedule of Investments [Line Items]
Number of securities continuous unrealized loss position more than twelve months	5	6
Asset-backed securities
Schedule of Investments [Line Items]
Number of securities continuous unrealized loss position more than twelve months	5	8
Corporate bonds
Schedule of Investments [Line Items]
Number of securities continuous unrealized loss position more than twelve months	11	12
US Government Agencies Debt Securities
Schedule of Investments [Line Items]
Number of securities continuous unrealized loss position more than twelve months	33	37
Mortgage- Related Securities
Schedule of Investments [Line Items]
Number of securities continuous unrealized loss position more than twelve months	328	302
Mutual funds
Schedule of Investments [Line Items]
Number of securities continuous unrealized loss position more than twelve months	1	1
Foreign notes
Schedule of Investments [Line Items]
Number of securities continuous unrealized loss position more than twelve months	1	1
Municipal bonds
Schedule of Investments [Line Items]
Number of securities continuous unrealized loss position more than twelve months	1	1