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Stockholders' Equity (Tables) | 9 Months Ended
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Sep. 30, 2021
Equity [Abstract] |
Schedule of Shares Repurchased | The table below summarizes the shares of our Common Stock we repurchased under the programs during the three and nine months ended September 30, 2021 and 2020 and the cost of the shares received, which were recorded as Treasury Stock.
| Three Months Ended September 30, |  | Nine Months Ended September 30,
(In millions) | 2021 |  | 2020 |  | 2021 |  | 2020
Number of shares repurchased | 0.3 |  |  | 0.2 |  |  | 1.6 |  |  | 0.9 |
Total cost of shares received | $ | 190.5 |  |  | $ | 100.4 |  |  | $ | 802.7 |  |  | $ | 373.3 |

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