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Investment in Unconsolidated Affiliates Summarized Balance Sheet Information of Equity Method Investment (Details) - USD ($)
$ in Millions
Jun. 30, 2021
Dec. 31, 2020
Schedule of Equity Method Investments [Line Items]    
Assets, Current $ 484.6 $ 428.5
Liabilities, Current 911.3 697.4
Equity Method Investment, Nonconsolidated Investee or Group of Investees [Member]    
Schedule of Equity Method Investments [Line Items]    
Assets, Current 475.0 381.0
Assets, Noncurrent 11,284.0 11,348.0
Liabilities, Current 1,317.0 582.0
Liabilities, Noncurrent $ 3,249.0 $ 4,052.0