Affordable Housing Partnership, Tax Credit and Community Reinvestment Act Investments, Net - Narrative (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2026	Dec. 31, 2025
Investments in Tax Credit and Other Investments, Net [Line Items]
Minimum compliance period for qualified affordable housing partnerships to fully utilize the tax credits (in years)	15 years
Balance Sheet Location [Axis]: us-gaap:OtherAssets
Investments in Tax Credit and Other Investments, Net [Line Items]
Equity securities without readily determinable fair values	$ 118	$ 117