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Goodwill and Core Deposit Intangibles - Schedule of Changes in Intangible Liabilities (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Finite-lived Intangible Liabilities [Roll Forward] |  |
Balance at January 1 | $ 36 | $ 0
Amortization | (12) | (16)
Balance at December 31, net of accumulated amortization | 24 | 36
CIT Group Inc. |  |
Finite-lived Intangible Liabilities [Roll Forward] |  |
Acquired in CIT Merger | $ 0 | $ 52

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- Definition Amount of amortization of acquired leases acquired as part of a real property acquisition at below market lease rate with a finite life. + References No definition available. + Details
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- Definition Amount of acquired leases acquired as part of a real property acquisition at below market lease rate with a finite life. + References No definition available. + Details
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- Definition Amount after amortization of leases acquired as part of a real property acquisition at below market lease rate with a finite life. + References No definition available. + Details
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- Details
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