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Financial Instruments And Fair Value Measurements (Nonfinancial Assets Measured on a Nonrecurring Basis) (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2022 | Mar. 31, 2021 | Dec. 31, 2021
Continuing Operations [Member] | Reported Value Measurement [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Assets held for sale | $ 72.9 |  | $ 53.3
Discontinued Operations [Member] | Reported Value Measurement [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Assets held for sale in discontinued operations | 1.1 |  | $ 1.1
Fair Value, Nonrecurring [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Gain/(Loss) on right-of-use assets | 0.0 | $ (0.1) |
Gain/(Loss) on assets held and used | (0.4) | (0.9) |
Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Right-of-use assets | 0.0 | 0.0 |
Long-lived assets held and used | $ 0.0 | $ 6.0 |

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