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Parent Company Financial Statements Parent Company Financial Statements (Statements of Income) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Condensed Financial Statements, Captions [Line Items] |  |  |
Other interest income | $ 333 | $ 405 | $ 105
Interest on medium- and long-term debt | 463 | 378 | 87
Salaries and benefits expense | 1,352 | 1,306 | 1,208
Other noninterest expenses | 151 | 164 | 84
Benefit for income taxes | 190 | 263 | 325
Net Income | 698 | 881 | 1,151
Less income allocated to participating securities | 4 | 4 | 6
Net income attributable to common shares | 671 | 854 | 1,122
Parent Company |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |
Dividends from subsidiaries | 200 | 677 | 1,067
Other interest income | 58 | 53 | 13
Intercompany management fee | 85 | 75 | 109
Total income | 343 | 805 | 1,189
Interest on medium- and long-term debt | 124 | 79 | 47
Salaries and benefits expense | 71 | 62 | 53
Other noninterest expenses | 15 | 13 | 46
Total expenses | 210 | 154 | 146
Income before benefit for income taxes and equity in undistributed earnings of subsidiaries | 133 | 651 | 1,043
Benefit for income taxes | (11) | (2) | (3)
Income before equity in undistributed earnings of subsidiaries | 144 | 653 | 1,046
Equity in undistributed earnings of subsidiaries, principally banks | 554 | 228 | 105
Net Income | 698 | 881 | 1,151
Less income allocated to participating securities | 4 | 4 | 6
Less preferred stock dividends | 23 | 23 | 23
Net income attributable to common shares | $ 671 | $ 854 | $ 1,122

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