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v3.23.1

Stock-Based Compensation Plans (Tables) | 3 Months Ended
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Mar. 31, 2023
Stock-Based Compensation Plans |
Stock-Based Compensation Disclosures (Table) | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the three months ended March 31,
​ |  | 2023 |  | 2022
​ | ​ | (in millions)
Compensation cost | ​ | $ | 28.2 | ​ | $ | 28.4
Related income tax benefit | ​ |  | 7.0 | ​ |  | 6.4
Capitalized as part of an asset | ​ |  | 0.4 | ​ |  | 0.4
​

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