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Investment in Unconsolidated Affiliate and Related Party Transactions Summarized Balance Sheet Information of Equity Method Investment (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Summarized Financial Information of Equity Method Investment [Line Items]
Current assets	$ 381.0	$ 438.0
Non-current assets	10,857.0	11,399.0
Current liabilities	615.0	671.0
Non-current liabilities	$ 3,092.0	$ 2,344.0

The amount of current liabilities reported by an equity method investment of the entity.

The amount of noncurrent assets reported by an equity method investment of the entity.

The amount of noncurrent liabilities reported by an equity method investment of the entity.