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Investment in Unconsolidated Affiliates Summarized Balance Sheet Information of Equity Method Investment (Details) (USD $)
In Millions, unless otherwise specified
Jun. 30, 2014
Summarized Balance Sheet Information of Equity Method Investment [Abstract]  
Current assets $ 923.0
Non-current assets 10,814.5
Current liabilities 583.4
Non-current liabilities $ 2,343.1