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Stock-Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2023
Share-Based Payment Arrangement [Abstract] |
Schedule of Additional Stock-Based Compensation Disclosures | Stock-based compensation expense and the related tax benefits were as follows:
| 2023 |  | 2022 |  | 2021
Stock-based compensation expense | $ | 628.5 |  |  | $ | 371.1 |  |  | $ | 342.8 |
Tax benefit | 132.0 |  |  | 77.9 |  |  | 72.0 |
Share-based Compensation Awards, Fair Value Assumptions Used | The weighted-average fair values of the SVA units granted during the years ended December 31, 2023, 2022, and 2021 were $349.63, $203.88, and $230.19, respectively, determined using the following assumptions:
| 2023 |  | 2022 |  | 2021
Expected dividend yield | 1.07 | % |  | 1.60 | % |  | 2.50 | %
Risk-free interest rate | 4.08 |  |  | 1.57 |  |  | 0.19 |
Volatility | 29.87 |  |  | 32.99 |  |  | 31.42 |
The weighted-average fair value of the RVA units granted during the years ended December 31, 2023, 2022 and 2021 were $397.95, $230.00, and $286.71, respectively, determined using the following assumptions:
| 2023 |  | 2022 |  | 2021
Expected dividend yield | 1.07 | % |  | 1.60 | % |  | 2.50 | %
Risk-free interest rate | 4.08 |  |  | 1.57 |  |  | 0.19 |
Volatility | 31.25 |  |  | 32.86 |  |  | 30.95 |

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