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Other Income (Expense), Net (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2023 | Mar. 31, 2022
Other Income and Expenses [Abstract] |  |
Interest income | $ 0.4 |
Net periodic postretirement benefit cost | (2.0) | $ (1.4)
Unrealized gain (loss) on equity securities | 0.1 | (0.4)
Gain on disposition of property, plant and equipment | 15.0 | (0.3)
All other, net | 0.1 | 0.2
Other income (expense), net | $ 13.6 | $ (1.6)

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