Pensions and Postretirement Benefits (Summary Company's Expected Future Benefit Payments) (Details) $ in Millions	Dec. 31, 2018 USD ($)
Pension Benefits
Other postretirement benefit plans defined benefit net including medicare subsidy
Pension Benefits 2019	$ 5.4
Pension Benefits 2020	5.6
Pension Benefits 2021	5.7
Pension Benefits 2022	5.8
Pension Benefits 2023	5.9
Pension Benefits 2024 to 2028	29.7
Postretirement Benefits
Other postretirement benefit plans defined benefit net including medicare subsidy
Pension Benefits 2019	0.1
Pension Benefits 2020	0.1
Pension Benefits 2021	0.1
Pension Benefits 2022	0.1
Pension Benefits 2023	0.1
Pension Benefits 2024 to 2028	0.3
Postretirement Benefits \| Gross
Other postretirement benefit plans defined benefit net including medicare subsidy
Pension Benefits 2019	1.0
Pension Benefits 2020	1.0
Pension Benefits 2021	0.9
Pension Benefits 2022	0.9
Pension Benefits 2023	0.9
Pension Benefits 2024 to 2028	3.4
Postretirement Benefits \| Expected Medicare Subsidy
Other postretirement benefit plans defined benefit net including medicare subsidy
Pension Benefits 2019	0.9
Pension Benefits 2020	0.9
Pension Benefits 2021	0.8
Pension Benefits 2022	0.8
Pension Benefits 2023	0.8
Pension Benefits 2024 to 2028	$ 3.1

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Amount of benefits for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following latest fiscal year.

+ References

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-Publisher FASB
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-Topic 715
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Amount of benefits for defined benefit plan expected to be paid in next fiscal year following latest fiscal year.

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Amount of benefits for defined benefit plan expected to be paid in third fiscal year following latest fiscal year.

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Amount of benefits for defined benefit plan expected to be paid in second fiscal year following latest fiscal year.

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