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v3.24.3

Debt Securities (Narrative) (Details) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2024 USD ($) security | Sep. 30, 2024 USD ($) security | Dec. 31, 2023 USD ($) security
Debt Securities, Available-for-sale [Line Items] |  |  |
Debt securities available for sale | $ 28,698,000,000 | $ 28,698,000,000 | $ 28,104,000,000
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | security | 1,540 | 1,540 | 1,703
Debt Securities, Available-for-Sale, Realized Loss | $ 92,000,000 | $ 192,000,000 |
Debt Securities, Available-for-sale, Realized Gain | 14,000,000 | 14,000,000 |
Gross Realized Gain (Loss), net | 78,000,000 | 178,000,000 |
Debt Securities Transferred from Available for Sale to Held to Maturity, Amortized Cost | 2,500,000,000 | 2,500,000,000 |
OCIDebtSecuritiesAvailableForSaleTransferToHeldToMaturityUnrealizedGainLossBeforeAdjustmentBeforeTax | 436,000,000 |  |
Asset Pledged as Collateral |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Debt securities available for sale | $ 20,800,000,000 | $ 20,800,000,000 | $ 24,000,000,000.0

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