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Investments in Affiliated Companies (Balance Sheet, Affiliates) (Details 5) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Summarized balance sheet for all affiliated companies
Current assets	$ 211.6	$ 200.5
Noncurrent assets	3,195.1	2,989.2
Total assets	3,406.7	3,189.7
Current liabilities	378.4	159.6
Noncurrent liabilities	2,388.2	2,408.8
Shareholders’ equity	640.1	621.3
Total liabilities and shareholders' equity	$ 3,406.7	$ 3,189.7

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

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

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

The amount of liabilities and equity 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.