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STOCK-BASED COMPENSATION (Tables) | 3 Months Ended
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Mar. 31, 2023
Share-Based Payment Arrangement [Abstract] |
Weighted-Average Assumptions and Fair Values Used of Performance Units Granted | The weighted-average assumptions used and the weighted-average fair values of the LTIP awards granted in 2023 and 2022 are as follows:
| 2023 |  | 2022 |
Risk-free interest rate | 3.81 | % |  | 2.35 | % |
Expected volatility | 30.30 | % |  | 31.92 | % |
Weighted-average fair value of RPUs granted | $ | 200.01 |  |  | $ | 227.00 |  |
Share payout | 107.80 | % |  | 107.37 | % |
Fair Value of Employee Stock Options Granted and Determined by Black-Scholes Valuation Model Assumptions | The fair value of each option granted is estimated using a Black-Scholes option pricing model. The weighted-average assumptions used and the weighted-average fair values of options granted in 2023 and 2022 are as follows:
| 2023 |  | 2022
Expected dividend yield | 3.54 | % |  | 2.35 | %
Risk-free interest rate | 3.70 | % |  | 2.39 | %
Expected life (in years) | 5.93 |  | 7.5
Expected volatility | 28.31 | % |  | 25.04 | %
Weighted-average fair value of options granted | $ | 41.08 |  |  | $ | 48.45 |

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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Subparagraph (f)(2) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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