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v3.23.2

Investment Securities - Investment Securities, Narrative (Details) $ in Millions | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | ---
Mar. 31, 2023 USD ($) | Jun. 30, 2023 USD ($) loan | Jun. 30, 2022 USD ($) | Mar. 12, 2023 USD ($) | Dec. 31, 2022 USD ($) loan
Schedule of Investments [Line Items] |  |  |  |  |
Federal home loan bank stock | $ |  | $ 1,136 |  |  | $ 1,267
Federal reserve bank stock | $ |  | 203 |  |  | 176
Equity securities, FV-NI, gain (loss) | $ |  | (1) | $ (1) |  |
Debt securities, available-for-sale | $ |  | $ 7,782 |  |  | $ 9,060
Signature Bank | Corporate bonds |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Debt securities, available-for-sale | $ |  |  |  | $ 20 |
Collateralized Debt Obligations |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Number of securities continuous unrealized loss position more than twelve months | loan |  | 59 |  |  | 23
Capital trust notes |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Number of securities continuous unrealized loss position more than twelve months | loan |  | 6 |  |  | 5
Asset-backed securities |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Number of securities continuous unrealized loss position more than twelve months | loan |  | 9 |  |  | 7
Corporate bonds |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Number of securities continuous unrealized loss position more than twelve months | loan |  | 10 |  |  | 2
Corporate bonds | Signature Bank |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Provision for credit loss | $ | $ 20 |  |  |  |
US Government Agencies Debt Securities |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Number of securities continuous unrealized loss position more than twelve months | loan |  | 38 |  |  | 33
Agency - commercial |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Number of securities continuous unrealized loss position more than twelve months | loan |  | 249 |  |  | 133
Mutual funds and common stock |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Number of securities continuous unrealized loss position more than twelve months | loan |  | 1 |  |  | 1
Municipal bonds |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Number of securities continuous unrealized loss position more than twelve months | loan |  | 1 |  |  | 1
Federal Home Loan Bank of New York |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Federal home loan bank stock | $ |  | $ 605 |  |  | $ 762
Federal Home Loan Bank of Indianapolis |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Federal home loan bank stock | $ |  | $ 329 |  |  | $ 329

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