Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Aug. 13, 2021	Dec. 31, 2019
NOL and Tax Credit Carryforwards [Line Items]
Repatriation of foreign earnings (GILTI )	$ 0.0	$ 2.0	$ 0.2
Valuation allowance	(50.0)	17.6	335.5
Discrete tax effects related to valuation allowance		11.6
Additional valuation allowance required		5.2
Accumulated other comprehensive loss, net of tax	725.2	991.7	1,223.6		$ 1,201.7
Impairment of goodwill	0.0	0.0	287.0
Goodwill	0.0	2.6	50.4
Deferred taxes for foreign withholding taxes	5.3
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	(132.8)	(111.3)	(58.3)
Goodwill	(227.2)	(227.9)
Income tax provision	15.5	26.8	77.7
Recognition of stranded deferred tax balance	0.0	3.9	0.0
Settlement gain (loss)	(29.5)	21.9	0.0
Tax expense for the recognition of a stranded deferred tax balance arising from deferred tax valuation allowances that was associated with certain postretirement medical benefits due to plan termination		6.4
Loss on asset sales and sales of businesses, net	134.2	0.0	0.0
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	266.5	231.9	(21.9)
Collective-Bargaining Arrangement, Other
NOL and Tax Credit Carryforwards [Line Items]
Income tax provision		15.5
Flowform Products
NOL and Tax Credit Carryforwards [Line Items]
Goodwill				$ (12.2)
Loss on asset sales and sales of businesses, net		(13.8)
Sheffield, UK Operations
NOL and Tax Credit Carryforwards [Line Items]
Valuation allowance decrease due to change in judgment on the realizability of deferred tax assets	(13.6)
Loss on asset sales and sales of businesses, net	141.0
Accumulated Deferred Tax Asset Valuation Allowance
NOL and Tax Credit Carryforwards [Line Items]
Accumulated other comprehensive loss, net of tax	(67.5)	(15.8)	50.3		41.5
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	(51.7)	(66.1)	8.8
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	51.7	66.1	(8.8)
Post- retirement benefit plans [Member]
NOL and Tax Credit Carryforwards [Line Items]
Accumulated other comprehensive loss, net of tax	736.1	947.7	1,119.9		$ 1,083.1
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	(93.7)	(53.9)	(62.5)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	211.6	172.2	(36.8)
Post- retirement benefit plans [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
NOL and Tax Credit Carryforwards [Line Items]
Income tax provision	(12.0)	(11.9)	(19.7)
Settlement gain (loss)	(29.5)	$ 21.9	$ 0.0
State [Member]
NOL and Tax Credit Carryforwards [Line Items]
Valuation allowance decrease due to change in judgment on the realizability of deferred tax assets	$ (43.4)