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EARNINGS PER COMMON SHARE COMPUTATION (Tables) | 9 Months Ended
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Sep. 30, 2025
Earnings Per Share [Abstract] |
Schedule of Computation of Basic and Diluted Earnings Per Common Share | Detail supporting the computation of basic and diluted earnings per common share was as follows for the three and nine months ended September 30, 2025 and 2024:
| Three months ended September 30, |  | Nine months ended September 30,
| 2025 |  | 2024 |  | 2025 |  | 2024
| (dollars in millions, except per common share results; number of shares in thousands)
Net income available for common stockholders | $ | 195 |  |  | $ | 480 |  |  | $ | 1,984 |  |  | $ | 1,900 |
Weighted average outstanding shares of common stock used to compute basic earnings per common share | 120,273 |  |  | 120,405 |  |  | 120,492 |  |  | 120,609 |
Dilutive effect of: |  |  |  |  |  |  |
Employee stock options | — |  |  | 3 |  |  | — |  |  | 4 |
Restricted stock | 472 |  |  | 356 |  |  | 286 |  |  | 286 |
Shares used to compute diluted earnings per common share | 120,745 |  |  | 120,764 |  |  | 120,778 |  |  | 120,899 |
Basic earnings per common share | $ | 1.62 |  |  | $ | 3.99 |  |  | $ | 16.47 |  |  | $ | 15.76 |
Diluted earnings per common share | $ | 1.62 |  |  | $ | 3.98 |  |  | $ | 16.43 |  |  | $ | 15.72 |
Number of antidilutive stock options and restricted stock excluded from computation | 450 |  |  | 361 |  |  | 1,016 |  |  | 759 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482662/260-10-50-1 + Details
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