Derivative Financial Instruments - Derivative Instruments (Details) - USD ($) $ in Millions	6 Months Ended
Jun. 30, 2023	Jun. 30, 2022
Treasury futures
Derivatives, Fair Value [Line Items]
Fair Value		$ (18)
Assets
Derivatives, Fair Value [Line Items]
Outstanding Notional	$ 3,025	4,256
Fair Value	41	77
Gains/(Losses)	51	360
Assets \| Loan sale commitments
Derivatives, Fair Value [Line Items]
Outstanding Notional	556	246
Fair Value	8	8
Gains/(Losses)	(1)	(17)
Assets \| IRLCs
Derivatives, Fair Value [Line Items]
Outstanding Notional	1,041	2,103
Fair Value	30	62
Gains/(Losses)	8	(72)
Assets \| LPCs
Derivatives, Fair Value [Line Items]
Outstanding Notional	200	325
Fair Value	1	3
Gains/(Losses)	0	0
Assets \| Forward MBS trades
Derivatives, Fair Value [Line Items]
Outstanding Notional	1,712	1,798
Fair Value	10	12
Gains/(Losses)	43	429
Assets \| Treasury futures
Derivatives, Fair Value [Line Items]
Outstanding Notional	72	30
Fair Value	0	0
Gains/(Losses)	0	3
Liabilities
Derivatives, Fair Value [Line Items]
Outstanding Notional	3,937	2,860
Fair Value	(24)	(33)
Gains/(Losses)	(94)	(216)
Liabilities \| IRLCs
Derivatives, Fair Value [Line Items]
Outstanding Notional	18	56
Fair Value	0	(1)
Gains/(Losses)	0	(1)
Liabilities \| LPCs
Derivatives, Fair Value [Line Items]
Outstanding Notional	234	186
Fair Value	(1)	(1)
Gains/(Losses)	0	1
Liabilities \| Forward MBS trades
Derivatives, Fair Value [Line Items]
Outstanding Notional	1,175	1,716
Fair Value	(3)	(13)
Gains/(Losses)	(50)	(31)
Liabilities \| Treasury futures
Derivatives, Fair Value [Line Items]
Outstanding Notional	2,510	902
Fair Value	(20)
Gains/(Losses)	$ (44)	$ (185)

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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