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Pension And Other Post-Retirement Benefits (Narrative) (Details) - USD ($) $ in Millions		3 Months Ended
	Feb. 09, 2022	Mar. 31, 2022	Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position		$ 29.0	$ 78.9
Other Post-Retirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Expected required contributions		0.5
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Contribution to pension plans for continuing operations	$ 50.0
Accrued Expenses [Member]
Defined Benefit Plan Disclosure [Line Items]
Liability, Defined Benefit Plan, Current		$ 0.7

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