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v3.23.3

Equity - Share Repurchases, Dividends, Stock-Based Compensation (Details) - USD ($) $ / shares in Units, $ in Millions |  | 1 Months Ended | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | --- | ---
Oct. 24, 2023 | Oct. 24, 2023 | Feb. 28, 2023 | Sep. 30, 2023 | Jun. 30, 2023 | Mar. 31, 2023 | Sep. 30, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Oct. 30, 2023
Share Repurchase Plan |  |  |  |  |  |  |  |  |  |  |  |
Value of shares authorized by the Board of Directors to be repurchased under share repurchase plan |  |  |  |  |  |  |  |  |  |  |  | $ 1,500.0
Share repurchases (in shares) |  | 575,060 |  | 467,213 | 308,454 | 160,224 | 1,883,093 | 1,085,635 | 113,529 | 935,891 | 3,082,257 |
Average costs per share |  | $ 255.15 |  | $ 270.49 | $ 239.55 | $ 242.86 | $ 178.79 | $ 178.61 | $ 150.97 | $ 255.56 | $ 177.70 |
Value of shares repurchased |  | $ 146.7 |  | $ 126.4 | $ 73.9 | $ 38.9 | $ 336.7 | $ 193.9 | $ 17.1 | $ 239.2 | $ 547.7 |
Remaining value of shares authorized by the Board of Directors to be repurchased under share repurchase plan | $ 294.8 | $ 294.8 |  |  |  |  |  |  |  |  |  |
Common Stock and Additional Paid-In (in Shares) |  |  |  |  |  |  |  |  |  |  |  |
Payments made to tax authorities on employees' behalf |  |  |  |  |  |  |  |  |  | $ 41.3 | $ 21.6 |
Dividends |  |  |  |  |  |  |  |  |  |  |  |
Common stock quarterly dividend per share (in dollars per share) |  |  |  | $ 1.00 |  |  | $ 0.875 |  |  | $ 3.00 | $ 2.625 |
Common stock dividend quarterly declared and paid per share (in dollars per share) | $ 1.00 |  |  | $ 1.00 |  |  | $ 0.875 |  |  | $ 3.00 | $ 2.625 |
Dividends paid |  |  |  | $ 58.5 |  |  | $ 52.5 |  |  | $ 176.1 | $ 160.6 |
Additional share-based compensation disclosures |  |  |  |  |  |  |  |  |  |  |  |
Total unrecognized compensation cost |  |  |  | 82.5 |  |  |  |  |  | $ 82.5 |  |
Weighted average recognition period for unrecognized compensation cost (in years) |  |  |  |  |  |  |  |  |  | 1 year 8 months 12 days |  |
Common Stock and Additional Paid in Capital |  |  |  |  |  |  |  |  |  |  |  |
Share Repurchase Plan |  |  |  |  |  |  |  |  |  |  |  |
Value of shares repurchased |  |  |  | $ 11.6 |  |  | $ 14.1 |  |  | $ 5.3 | 26.8 |
Restricted stock units (RSUs) |  |  |  |  |  |  |  |  |  |  |  |
Dividends |  |  |  |  |  |  |  |  |  |  |  |
Dividend equivalents paid |  |  |  |  |  |  |  |  |  | $ 3.2 | $ 2.9 |
Additional share-based compensation disclosures |  |  |  |  |  |  |  |  |  |  |  |
Vesting period (in years) |  |  | 3 years |  |  |  |  |  |  |  |  |
Changes |  |  |  |  |  |  |  |  |  |  |  |
Granted (in shares) |  |  | 109,683 |  |  |  |  |  |  |  |  |
Restricted stock units (RSUs) and performance stock units (PSUs) |  |  |  |  |  |  |  |  |  |  |  |
Changes |  |  |  |  |  |  |  |  |  |  |  |
Unvested at the beginning of the year (in units) |  |  |  |  |  | 582,012 |  |  |  | 582,012 |  |
Granted (in shares) |  |  |  |  |  |  |  |  |  | 193,812 |  |
Vested (in units) |  |  |  |  |  |  |  |  |  | (4,075) |  |
Cancelled or forfeited (in units) |  |  |  |  |  |  |  |  |  | (13,693) |  |
Unvested at the end of the period (in units) |  |  |  | 758,056 |  |  |  |  |  | 758,056 |  |
Shares reserved for future grants (all plans) |  |  |  | 1,479,570 |  |  |  |  |  | 1,479,570 |  |
Weighted Average Grant Date Fair Value |  |  |  |  |  |  |  |  |  |  |  |
Unvested at the beginning of the year (in dollars per unit) |  |  |  |  |  | $ 164.60 |  |  |  | $ 164.60 |  |
Granted (in dollars per unit) |  |  |  |  |  |  |  |  |  | 247.90 |  |
Vested (in dollars per unit) |  |  |  |  |  |  |  |  |  | 157.22 |  |
Cancelled or forfeited (in dollars per unit) |  |  |  |  |  |  |  |  |  | 177.18 |  |
Unvested at the end of the period (in dollars per unit) |  |  |  | $ 185.71 |  |  |  |  |  | $ 185.71 |  |
Performance stock units (PSUs) |  |  |  |  |  |  |  |  |  |  |  |
Additional share-based compensation disclosures |  |  |  |  |  |  |  |  |  |  |  |
Vesting period (in years) |  |  | 3 years |  |  |  |  |  |  | 3 years |  |
Return on assets result period |  |  | 3 years |  |  |  |  |  |  | 3 years | 3 years |
Changes |  |  |  |  |  |  |  |  |  |  |  |
Granted (in shares) |  |  | 84,129 |  |  |  |  |  |  |  |  |
Performance stock units (PSUs) | Maximum |  |  |  |  |  |  |  |  |  |  |  |
Stock Based Compensation |  |  |  |  |  |  |  |  |  |  |  |
Share of Common Stock |  |  | 2 |  |  |  |  |  |  | 2 | 2 |
All stock-based compensation plans |  |  |  |  |  |  |  |  |  |  |  |
Common Stock and Additional Paid-In (in Shares) |  |  |  |  |  |  |  |  |  |  |  |
Payments made to tax authorities on employees' behalf |  |  |  |  |  |  |  |  |  | $ 41.3 | $ 21.6 |

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