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Goodwill and Intangible Assets Goodwill and Intangible Assets (Summary of Changes in Carrying Value of Goodwill) (Details) - USD ($) $ in Millions | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Balance | $ 635 | $ 635
Commercial Bank |  |
Balance | 473 | 473
Retail Bank |  |
Balance | 101 | 101
Wealth Management |  |
Balance | $ 61 | $ 61

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