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Goodwill and Core Deposit Intangibles - Schedule of Finite-Lived Intangible Assets, Future Amortization Expense (Details) - Core deposit intangibles - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | --- | ---
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
2024 | $ 63 |  |
2025 | 54 |  |
2026 | 46 |  |
2027 | 39 |  |
2028 | 34 |  |
Thereafter | 76 |  |
Balance, net of accumulated amortization | $ 312 | $ 140 | $ 19

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- Definition Amount of amortization for asset, excluding financial asset and goodwill, lacking physical substance with finite life expected to be recognized after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References No definition available. + Details
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