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Stockholders' Equity - Share Repurchase Activity (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions | 2 Months Ended | 12 Months Ended
--- | --- | ---
Feb. 16, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Class of Stock [Line Items] |  |  |  |
Share repurchases, amount |  | $ 509.9 | $ 430.0 | $ 360.8
Common Stock |  |  |  |
Class of Stock [Line Items] |  |  |  |
Shares Repurchased (in shares) |  | 3.5 | 5.0 | 4.1
Average Price (in dollars per share) |  | $ 146.54 | $ 86.35 | $ 88.73
Common Stock | Subsequent Event |  |  |  |
Class of Stock [Line Items] |  |  |  |
Shares Repurchased (in shares) | 0.8 |  |  |
Share repurchases, amount | $ 110.0 |  |  |

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