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SHARE-BASED COMPENSATION PLANS (Tables) | 12 Months Ended
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Dec. 31, 2023
Share-Based Payment Arrangement, Noncash Expense [Abstract] |
Schedule of Shareholder Approved Plans | A summary of the option activity under the Company’s shareholder approved plans as of December 31, 2022 and 2021, and changes during the year then ended is presented in the following tables:
(Aggregate Intrinsic Value in millions; Shares in whole amounts) | Shares |  | Weighted- Average Exercise Price/Share |  | Weighted- Average Remaining Contractual Term |  | Aggregate Intrinsic Value
Options |  |  |
Outstanding at January 1, 2022 | 49,028 |  |  | $ | 88.52 |  |  |  |  |
Granted | — |  |  | — |  |  |  |  |
Exercised | 49,028 |  |  | 88.52 |  |  |  |  |
Forfeited/Cancelled/Expired | — |  |  | — |  |  |  |  |
Outstanding at December 31, 2022 | — |  |  | — |  |  | 0 |  | $ | — |
|  |  | . |  |  |  |
Exercisable at December 31, 2022 | — |  |  | — |  |  | 0 |  | $ | — |
(Aggregate Intrinsic Value in millions; Shares in whole amounts) | Shares |  | Weighted- Average Exercise Price/Share |  | Weighted- Average Remaining Contractual Term |  | Aggregate Intrinsic Value
Options |  |  |
Outstanding at January 1, 2021 | 116,871 |  |  | $ | 87.87 |  |  |  |  |
Granted | — |  |  | — |  |  |  |  |
Exercised | 67,843 |  |  | 87.39 |  |  |  |  |
Forfeited/Cancelled/Expired | — |  |  | — |  |  |  |  |
Outstanding at December 31, 2021 | 49,028 |  |  | 88.52 |  |  | 0.2 |  | $ | 9 |
|  |  | . |  |  |  |
Exercisable at December 31, 2021 | 49,028 |  |  | 88.52 |  |  | 0.2 |  | $ | 9 |
Schedule of Non-Vested Shares and Changes | The following table summarizes the status of the Company’s restricted non-vested shares and changes for the periods indicated:
| Years Ended December 31,
| 2023 |  | 2022 |  | 2021
Restricted (non-vested) Shares | Shares |  | Weighted- Average Grant Date Fair Value |  | Shares |  | Weighted- Average Grant Date Fair Value |  | Shares |  | Weighted- Average Grant Date Fair Value
Outstanding at January 1, | 479,630 |  | $ | 268.82 |  |  | 496,094 |  | $ | 247.76 |  |  | 483,427 |  | $ | 246.60 |
Granted | 181,646 |  | 382.01 |  |  | 203,598 |  | 300.38 |  |  | 213,901 |  | 243.51 |
Vested | 155,110 |  | 261.60 |  |  | 162,579 |  | 246.41 |  |  | 158,735 |  | 238.67 |
Forfeited | 44,629 |  | 297.23 |  |  | 57,483 |  | 262.28 |  |  | 42,499 |  | 247.02 |
Outstanding at December 31, | 461,537 |  | 313.05 |  |  | 479,630 |  | 268.82 |  |  | 496,094 |  | 247.76 |
Schedule of Non-Vested Performance Share Unit Awards | The following table summarized the status of the Company’s non-vested performance share unit awards and changes for the period indicated:
| Years Ended December 31,
| 2023 |  | 2022 |  | 2021
Performance Share Unit Awards | Shares |  | Weighted- Average Grant Date Fair Value |  | Shares |  | Weighted- Average Grant Date Fair Value |  | Shares |  | Weighted- Average Grant Date Fair Value
Outstanding at January 1, | 54,861 |  | $ | — |  |  | 50,495 |  | $ | — |  |  | 38,891 |  | $ | — |
Granted | 14,975 |  | 382.39 |  |  | 18,340 |  | 301.54 |  |  | 22,205 |  | 242.24 |
Increase/(Decrease) on vesting units due to performance | -4,063 |  | — |  |  | 3,028 |  | — |  |  | (800) |  | — |
Vested | 14,023 |  | 340.44 |  |  | 15,919 |  | 274.37 |  |  | 9,801 |  | 242.24 |
Forfeited | 750 |  | — |  |  | 1,083 |  | — |  |  | 0 |  | — |
Outstanding at December 31, | 51,000 |  | — |  |  | 54,861 |  | — |  |  | 50,495 |  | — |

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