Accumulated Other Comprehensive Income (Loss) Reclassification Adjustments (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Interest Expense	$ 50.7	$ 51.3	$ 148.4	$ 149.7
Defined Benefit Plan, Plan Assets, Payment for Settlement	14.3	0.0	14.3	0.0
Total reclassifications for the period	12.9	2.2	13.1	5.2
Reclassification out of Accumulated Other Comprehensive Income [Member]
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	(1.4)	2.6	(0.6)	6.4
Accumulated Net Gain (Loss) from Interest Rate Hedge [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Interest Expense	$ 0.0	$ 0.4	$ 0.6	$ 1.2