Comprehensive Income (Changes in AOCI) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Changes in AOCI by component (net of tax) [Roll Forward]
Beginning balance	$ (88.1)	$ (97.2)
Other comprehensive (loss) income before reclassifications	1.1	22.9
Amounts reclassified from AOCL	(3.6)	(13.8)
Net other comprehensive (loss) income	(2.5)	9.1
Ending balance	(90.6)	(88.1)
Gains (Losses) on Cash Flow Hedges [Member]
Changes in AOCI by component (net of tax) [Roll Forward]
Beginning balance	10.7	8.2
Other comprehensive (loss) income before reclassifications	(8.1)	23.2
Amounts reclassified from AOCL	(7.5)	(20.7)
Net other comprehensive (loss) income	(15.6)	2.5
Ending balance	(4.9)	10.7
Defined Benefit Plan Items [Member]
Changes in AOCI by component (net of tax) [Roll Forward]
Beginning balance	(68.8)	(82.7)
Other comprehensive (loss) income before reclassifications	18.7	7.0
Amounts reclassified from AOCL	3.9	6.9
Net other comprehensive (loss) income	22.6	13.9
Ending balance	(46.2)	(68.8)
Foreign Currency Translation Adjustments [Member]
Changes in AOCI by component (net of tax) [Roll Forward]
Beginning balance	(28.8)	(21.5)
Other comprehensive (loss) income before reclassifications	(10.2)	(7.3)
Amounts reclassified from AOCL	0.0	0.0
Net other comprehensive (loss) income	(10.2)	(7.3)
Ending balance	(39.0)	(28.8)
Accumulated Defined Benefit Plans Adjustment Attributable to Noncontrolling Interest [Member]
Changes in AOCI by component (net of tax) [Roll Forward]
Beginning balance	(1.2)	(1.2)
Other comprehensive (loss) income before reclassifications	0.7	0.0
Amounts reclassified from AOCL	0.0	0.0
Net other comprehensive (loss) income	0.7	0.0
Ending balance	$ (0.5)	$ (1.2)