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Derivatives - Narrative (Details) - USD ($) | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021 | Dec. 31, 2021
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Collateral cash payables | $ 160,000,000 |  | $ 160,000,000 |  | $ 184,000,000
Total trading revenues | 38,000,000 | $ 91,000,000 | 99,000,000 | $ 206,000,000 |
Hedged amount of foreign currency denominated loans | 6,000,000 |  | 6,000,000 |  | 7,000,000
Derivative assets | 187,000,000 |  | 187,000,000 |  | 323,000,000
Derivative liability | 578,000,000 |  | 578,000,000 |  | 103,000,000
Additional Derivative Agreements | Derivative Instruments With Adjustable Collateral Posting Thresholds |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Net fair value of derivative assets with adjustable posting thresholds | 1,000,000 |  | 1,000,000 |  | 67,000,000
Net fair value of derivative liabilities with adjustable posting thresholds | 192,000,000 |  | 192,000,000 |  | 26,000,000
Collateral received | 142,000,000 |  | 142,000,000 |  | 205,000,000
Securities posted collateral | 44,000,000 |  | 44,000,000 |  | 14,000,000
Additional Derivative Agreements | Derivative Instruments With Accelerated Termination Provisions |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Net fair value of derivative assets with adjustable posting thresholds | 140,000,000 |  | 140,000,000 |  | 74,000,000
Net fair value of derivative liabilities with adjustable posting thresholds | 192,000,000 |  | 192,000,000 |  | 30,000,000
Collateral received | 284,000,000 |  | 284,000,000 |  | 213,000,000
Securities posted collateral | 44,000,000 |  | 44,000,000 |  | 18,000,000
Credit Risk Contract |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Derivative asset, notional amount | 229,000,000 |  | 229,000,000 |  | 257,000,000
Derivative liability, notional amount | 777,000,000 |  | 777,000,000 |  | 500,000,000
Embedded Derivative Financial Instruments |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Derivative assets | 0 |  | 0 |  | 0
Derivative liability | 0 |  | 0 |  | 0
Visa Class B Shares |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Derivative liabilities related to sale | 28,000,000 |  | 28,000,000 |  | 23,000,000
Derivative valuation adjustment | 12,000,000 |  | 12,000,000 |  | 19,000,000
Counterparties |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Collateral cash receivables | 238,000,000 |  | 238,000,000 |  | 181,000,000
Collateral cash payables | $ 58,000,000 |  | $ 58,000,000 |  | $ 102,000,000

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