Other Comprehensive (Loss) Income - Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other (income) expense - net	$ (3.9)	$ 16.2	$ 5.6
Interest expense	40.7	41.0	44.8
Income before income taxes	(749.4)	(579.8)	(470.3)
Provision for income taxes	162.7	130.5	92.5
Total net of tax	(586.9)	(449.4)	(377.8)
Reclassification out of Accumulated Other Comprehensive Income | Retirement Benefits Adjustments
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income before income taxes	0.5	10.3	2.9
Provision for income taxes	(0.1)	(2.4)	(0.1)
Total net of tax	0.4	7.9	2.8
Reclassification out of Accumulated Other Comprehensive Income | Amortization and settlement loss, net of curtailment gain
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other (income) expense - net	0.5	1.8	2.9
Reclassification out of Accumulated Other Comprehensive Income | Settlement loss recognized
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other (income) expense - net		10.5	0.0
Reclassification out of Accumulated Other Comprehensive Income | Curtailment gain recognized
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other (income) expense - net		(2.0)	0.0
Reclassification out of Accumulated Other Comprehensive Income | Derivatives Adjustments
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest expense	0.0	3.3	6.0
Income before income taxes	0.0	3.3	6.0
Provision for income taxes	0.0	(0.8)	(1.4)
Total net of tax	$ 0.0	$ 2.5	$ 4.6