Annual report pursuant to Section 13 and 15(d)

DISCONTINUED OPERATIONS Discontinued Operations, Items Measured at Fair Value on a Non-Recurring Basis - Canadian Entities (Details)

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DISCONTINUED OPERATIONS Discontinued Operations, Items Measured at Fair Value on a Non-Recurring Basis - Canadian Entities (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Canadian Entities [Member]      
Discontinued Operations, Items Measured at Fair Value on a Non-Recurring Basis [Line Items]      
Loans to and Accounts Receivables from Bloom Lake Group, Fair Value Disclosure $ 51.6 $ 48.6  
Losses on Loans to and Accounts Receivables from the Bloom Lake Group 3.0 17.5  
Bloom Lake Group [Member]      
Discontinued Operations, Items Measured at Fair Value on a Non-Recurring Basis [Line Items]      
Contingent Liabilities and Joint and Several Liabilities, Fair Value Disclosure 0.0    
Contingent Liabilities recognized in Consolidated Financials   37.2  
Contingent Liabilities of Deconsolidated Entities (24.3) 0.0 $ (203.1)
Losses on Contingent Liabilities 31.4 0.0  
Fair Value, Inputs, Level 1 [Member] | Canadian Entities [Member]      
Discontinued Operations, Items Measured at Fair Value on a Non-Recurring Basis [Line Items]      
Loans to and Accounts Receivables from Bloom Lake Group, Fair Value Disclosure 0.0 0.0  
Fair Value, Inputs, Level 1 [Member] | Bloom Lake Group [Member]      
Discontinued Operations, Items Measured at Fair Value on a Non-Recurring Basis [Line Items]      
Contingent Liabilities and Joint and Several Liabilities, Fair Value Disclosure 0.0 0.0  
Fair Value, Inputs, Level 2 [Member] | Canadian Entities [Member]      
Discontinued Operations, Items Measured at Fair Value on a Non-Recurring Basis [Line Items]      
Loans to and Accounts Receivables from Bloom Lake Group, Fair Value Disclosure 0.0 0.0  
Fair Value, Inputs, Level 2 [Member] | Bloom Lake Group [Member]      
Discontinued Operations, Items Measured at Fair Value on a Non-Recurring Basis [Line Items]      
Contingent Liabilities and Joint and Several Liabilities, Fair Value Disclosure 0.0 0.0  
Fair Value, Inputs, Level 3 [Member] | Bloom Lake Group [Member]      
Discontinued Operations, Items Measured at Fair Value on a Non-Recurring Basis [Line Items]      
Contingent Liabilities and Joint and Several Liabilities, Fair Value Disclosure 0.0 37.2  
Other Current Assets [Member] | Fair Value, Inputs, Level 3 [Member] | Canadian Entities [Member]      
Discontinued Operations, Items Measured at Fair Value on a Non-Recurring Basis [Line Items]      
Loans, Associated Interest and Accounts Receivable recognized in Consolidated Financials at Fair Value $ 51.6 $ 48.6