Derivative Financial Instruments - Outstanding Balances (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023
Assets
Derivatives, Fair Value [Line Items]
Outstanding Notional	$ 4,073	$ 5,944
Fair Value	46	159
Liabilities
Derivatives, Fair Value [Line Items]
Outstanding Notional	11,678	1,171
Fair Value	161	9
Loan sale commitments
Derivatives, Fair Value [Line Items]
Gains/(Losses)	1	1
Loan sale commitments \| Assets
Derivatives, Fair Value [Line Items]
Outstanding Notional	900	337
Fair Value	12	11
IRLCs \| Assets
Derivatives, Fair Value [Line Items]
Outstanding Notional	691	584
Fair Value	22	21
IRLCs \| Liabilities
Derivatives, Fair Value [Line Items]
Outstanding Notional	39	1
Fair Value	0	0
LPCs \| Assets
Derivatives, Fair Value [Line Items]
Outstanding Notional	511	361
Fair Value	6	3
LPCs \| Liabilities
Derivatives, Fair Value [Line Items]
Outstanding Notional	1,013	41
Fair Value	7	0
Forward Contracts [Member] \| Assets
Derivatives, Fair Value [Line Items]
Outstanding Notional	2,871	2,365
Fair Value	18	22
Forward Contracts [Member] \| Liabilities
Derivatives, Fair Value [Line Items]
Outstanding Notional	6,816	1,049
Fair Value	95	9
Treasury futures [Member]
Derivatives, Fair Value [Line Items]
Gains/(Losses)	(379)	(196)
Fair Value		0
Treasury futures [Member] \| Assets
Derivatives, Fair Value [Line Items]
Outstanding Notional	0	2,634
Fair Value	0	113
Treasury futures [Member] \| Liabilities
Derivatives, Fair Value [Line Items]
Outstanding Notional	3,810	80
Fair Value	59
Derivative financial instruments, total, Assets
Derivatives, Fair Value [Line Items]
Gains/(Losses)	334	269
Derivative financial instruments, Total, liabilities
Derivatives, Fair Value [Line Items]
Gains/(Losses)	(810)	(321)
Interest Rate Lock Commitments, Assets
Derivatives, Fair Value [Line Items]
Gains/(Losses)	1	(1)
Loan Purchase Commitments, Assets
Derivatives, Fair Value [Line Items]
Gains/(Losses)	3	2
Treasury futures, Assets
Derivatives, Fair Value [Line Items]
Gains/(Losses)	98	113
Forward Contracts, Assets
Derivatives, Fair Value [Line Items]
Gains/(Losses)	232	155
Forward Contracts, Liabilities
Derivatives, Fair Value [Line Items]
Gains/(Losses)	(424)	(126)
Interest Rate Lock Commitments, Liabilities
Derivatives, Fair Value [Line Items]
Gains/(Losses)	0	0
Loan Purchase Commitments, Liabilities
Derivatives, Fair Value [Line Items]
Gains/(Losses)	$ (7)	$ 1

Fair value of financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, not subject to a master netting arrangement.

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- Definition

Nominal or face amount used to calculate payments on the derivative asset.

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- Definition

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

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- Definition

Fair value of financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, not subject to a master netting arrangement.

+ References

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- Definition

Nominal or face amount used to calculate payments on the derivative liability.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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