Contractual interest rate for funds borrowed, under the debt agreement.

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The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

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Stated interest rate of the subordinated debt.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of subordinated debt (with initial maturities beyond one year or beyond the operating cycle if longer). Subordinated debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets.

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Subordinated Debt Securities (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 13, 2025	Dec. 31, 2024
Subordinated Borrowing [Line Items]
Subordinated debt securities	$ 4,153		$ 3,164
Subordinated Debt
Subordinated Borrowing [Line Items]
Subordinated debt securities		$ 1,000
Payments of Debt Issuance Costs	$ 12
Subordinated Borrowing, Interest Rate	6.35%
Junior Subordinated Debt Instrument One
Subordinated Borrowing [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		10.75%
Junior Subordinated Debt Instrument Two
Subordinated Borrowing [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		9.25%
Junior Subordinated Debt Instrument Three
Subordinated Borrowing [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		7.875%
Junior Subordinated Debt Instrument Four
Subordinated Borrowing [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		6.40%
Senior Notes
Subordinated Borrowing [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		5.70%