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Other Post-Employment Benefits and Other Employee Benefit Plans - Estimated Future Benefit Payments (Details) - Other Post-Employment Benefits and Other Employee Benefit Plans
$ in Millions
Dec. 31, 2020
USD ($)
Defined Benefit Plan Disclosure [Line Items]  
2021 $ 5.1
2022 4.6
2023 4.2
2024 3.8
2025 3.3
2026 to 2030 (combined) 11.4
Total $ 32.4