Preferred Stock - Non-Cumulative Perpetual Preferred Stock (Details) - USD ($)			3 Months Ended
	May 01, 2026	Mar. 12, 2026	Mar. 31, 2026	Dec. 31, 2025
Class of Stock [Line Items]
Shares Outstanding (in shares)			12,750
Liquidation Amount			$ 758,000,000
Carrying Amount			$ 741,000,000	$ 349,000,000
Series C
Class of Stock [Line Items]
Annual Dividend Rate			6.60%
Shares Outstanding (in shares)			5,750
Liquidation Amount			$ 58,000,000
Carrying Amount			$ 59,000,000	59,000,000
Series C | Forecast
Class of Stock [Line Items]
Basis spread on variable rate	5.18161%
Series C | Forecast | Variable Rate Basis Spread, Percentage One
Class of Stock [Line Items]
Basis spread on variable rate	0.26161%
Series C | Forecast | Variable Rate Basis Spread, Percentage Two
Class of Stock [Line Items]
Basis spread on variable rate	4.92%
Series E
Class of Stock [Line Items]
Annual Dividend Rate			6.50%
Shares Outstanding (in shares)			1,500
Liquidation Amount			$ 150,000,000
Carrying Amount			$ 145,000,000	145,000,000
Series F
Class of Stock [Line Items]
Annual Dividend Rate			4.70%
Shares Outstanding (in shares)			1,500
Liquidation Amount			$ 150,000,000
Carrying Amount			$ 145,000,000	145,000,000
Series H
Class of Stock [Line Items]
Annual Dividend Rate		6.75%	6.75%
Shares Outstanding (in shares)			4,000
Liquidation Amount			$ 400,000,000
Carrying Amount		$ 400,000,000	$ 392,000,000	$ 0