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EARNINGS PER COMMON SHARE COMPUTATION (Tables) | 12 Months Ended
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Dec. 31, 2023
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 years ended December 31, 2023, 2022 and 2021:
| 2023 |  | 2022 |  | 2021
| (dollars in millions, except per common share results, number of shares/options in thousands)
Net income available for common stockholders | $ | 2,489 |  |  | $ | 2,806 |  |  | $ | 2,933 |
Weighted-average outstanding shares of common stock used to compute basic earnings per common share | 123,866 |  |  | 126,419 |  |  | 128,688 |
Dilutive effect of: |  |  |  |  |
Employee stock options | 32 |  |  | 50 |  |  | 64 |
Restricted stock | 543 |  |  | 625 |  |  | 644 |
Shares used to compute diluted earnings per common share | 124,441 |  |  | 127,094 |  |  | 129,396 |
Basic earnings per common share | $ | 20.09 |  |  | $ | 22.20 |  |  | $ | 22.79 |
Diluted earnings per common share | $ | 20.00 |  |  | $ | 22.08 |  |  | $ | 22.67 |
Number of antidilutive stock options and restricted stock awards excluded from computation | 207 |  |  | 205 |  |  | 216 |

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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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