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v3.19.3.a.u2

General and Summary of Significant Accounting Policies Post-retirement and Post-employment Benefits (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Accounting Policies [Abstract] |  |  |
Pension and Other Postretirement Benefits Cost (Reversal of Cost) | $ 11.4 | $ 11.4 | $ 10.3

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- References No definition available. + Details
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- Definition Amount of cost (reversal of cost) for pension and other postretirement benefits. + References No definition available. + Details
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