Retirement and Postretirement Plans - Schedule of Pension Plan Assets by asset Category (Details) - Pension Benefits [Member] - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Plan Assets Category [Line Items]
Pension plan assets measured at fair value	$ 1,562.5	$ 2,152.4	$ 2,221.8
Level 1 [Member]
Defined Benefit Plan Plan Assets Category [Line Items]
Pension plan assets measured at fair value	42.9	11.1
Level 2 [Member]
Defined Benefit Plan Plan Assets Category [Line Items]
Pension plan assets measured at fair value	30.8	24.6
Level 1, 2 and 3 [Member]
Defined Benefit Plan Plan Assets Category [Line Items]
Pension plan assets measured at fair value	73.7	35.7
Registered Investment Companies [Member]
Defined Benefit Plan Plan Assets Category [Line Items]
Pension plan assets measured at fair value	40.9	9.0
Registered Investment Companies [Member] | Level 1 [Member]
Defined Benefit Plan Plan Assets Category [Line Items]
Pension plan assets measured at fair value	40.9	9.0
Common Collective Trusts [Member]
Defined Benefit Plan Plan Assets Category [Line Items]
Pension plan assets measured at fair value	24.3	16.7
Common Collective Trusts [Member] | Level 2 [Member]
Defined Benefit Plan Plan Assets Category [Line Items]
Pension plan assets measured at fair value	24.3	16.7
Other [Member]
Defined Benefit Plan Plan Assets Category [Line Items]
Pension plan assets measured at fair value	2.0	2.1
Other [Member] | Level 1 [Member]
Defined Benefit Plan Plan Assets Category [Line Items]
Pension plan assets measured at fair value	2.0	2.1
Pooled Separate Account [Member]
Defined Benefit Plan Plan Assets Category [Line Items]
Pension plan assets measured at fair value	6.5	7.9
Pooled Separate Account [Member] | Level 2 [Member]
Defined Benefit Plan Plan Assets Category [Line Items]
Pension plan assets measured at fair value	6.5	7.9
Pension Plan Assets Measured at NAV [Member]
Defined Benefit Plan Plan Assets Category [Line Items]
Pension plan assets measured at fair value	1,483.2	2,111.2
Insurance Contracts
Defined Benefit Plan Plan Assets Category [Line Items]
Pension plan assets measured at fair value	$ 5.6	$ 5.5