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Benefit Plans, Estimated Future Benefit Payments (Details) $ in Millions | Dec. 31, 2019 USD ($)
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Pension Benefits [Member] |
Estimated future benefit payments [Abstract] |
2020 | $ 25.0
2021 | 25.3
2022 | 27.0
2023 | 27.2
2024 | 27.0
2025-2029 | 134.1
Post-Retirement Benefits [Member] |
Estimated future benefit payments [Abstract] |
2020 | 0.4
2021 | 0.4
2022 | 0.4
2023 | 0.5
2024 | 0.5
2025-2029 | $ 2.3

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