Retirement Benefits (Details 14) $ in Millions	Dec. 31, 2022 USD ($)
Pension Benefits [Member]
Defined Benefit Plan Expected Future Benefit Payments [Abstract]
2023	$ 157.5
2024	155.0
2025	152.3
2026	149.6
2027	146.8
2028-2032	684.0
Other Postretirement Benefits
Defined Benefit Plan Expected Future Benefit Payments [Abstract]
2023	27.8
2024	26.0
2025	24.0
2026	22.1
2027	20.4
2028-2032	77.5
Medicare Part D Subsidy [Abstract]
2023	0.0
2024	0.0
2025	0.0
2026	0.0
2027	0.0
2028-2032	$ 0.0

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