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Financial Instruments (Realized Gains and Losses) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Fair Value Disclosures [Abstract] |  |  |  |
Proceeds from sales | $ 29.9 | $ 44.4 | $ 65.1 | $ 87.7
Realized gross gains on sales | 0.1 | 0.7 | 0.2 | 1.8
Realized gross losses on sales | $ 0.7 | $ 0.4 | $ 1.5 | $ 0.8

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- Definition Available for Sale Securities and Equity Securities, FV-NI, Realized Gain + References No definition available. + Details
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- Definition Available for sale Securities and Equity Securities, FV-NI, Realized Loss + References No definition available. + Details
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- Definition Proceeds from Sale of Equity and Available for Sale Securities + References No definition available. + Details
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- References No definition available. + Details
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