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Stockholder's Equity (Dividend) (Details) - USD ($) $ / shares in Units, $ in Millions |  |  |  | 3 Months Ended
--- | --- | --- | --- | ---
Mar. 15, 2022 | Feb. 22, 2022 | Feb. 03, 2022 | Dec. 31, 2021 | Jan. 01, 2021
Dividends Payable [Line Items] |  |  |  |  |
Document Period End Date |  |  |  | Dec. 31, 2021 |
Payments of Ordinary Dividends |  |  |  | $ 92.5 | $ 83.0
Payments of ordinary dividends |  |  |  | $ 92.5 | $ 83.0
Common Stock, Dividends, Per Share, Declared |  |  |  | $ 0.56 | $ 0.50
Subsequent Event [Member] | Dividend Declared [Member] |  |  |  |  |
Dividends Payable [Line Items] |  |  |  |  |
Dividend declaration date |  |  | Feb. 03, 2022 |  |
dividends date to be paid | Mar. 15, 2022 |  |  |  |
Dividends date of record |  | Feb. 22, 2022 |  |  |
Cash dividends declared and paid per share (usd per share) |  |  | $ 0.56 |  |

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- Definition The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented. If there is no historical data in the report, use the filing date. The format of the date is YYYY-MM-DD. + References No definition available. + Details
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