Quarterly report pursuant to Section 13 or 15(d)

DERIVATIVE INSTRUMENTS (Schedule Of Derivative Instruments In Statement Of Financial Position, Fair Value) (Details)

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Dec. 31, 2015
Derivatives, Fair Value [Line Items]    
Derivative asset, fair value $ 25.8 $ 7.8
Derivative liability, fair value 2.6 4.0
Market Approach Valuation Technique [Member] | Fair betfred gamesValue, Inputs, Level 3 [Member] | Customer Supply Agreement [Member] | Other Current Assets [Member]    
Derivatives, Fair Value [Line Items]    
Derivative asset, fair value 23.7 5.8
Market Approach Valuation Technique [Member] | Fair betfred gamesValue, Inputs, Level 3 [Member] | Customer Supply Agreement [Member] | Derivative Financial Instruments, Liabilities [Member]    
Derivatives, Fair Value [Line Items]    
Derivative liability, fair value 0.0 0.0
Market Approach Valuation Technique [Member] | Fair betfred gamesValue, Inputs, Level 3 [Member] | Provisional Pricing Arrangements [Member] | Other Current Assets [Member]    
Derivatives, Fair Value [Line Items]    
Derivative asset, fair value 2.1 2.0
Market Approach Valuation Technique [Member] | Fair betfred gamesValue, Inputs, Level 3 [Member] | Provisional Pricing Arrangements [Member] | Other Current Liabilities [Member]    
Derivatives, Fair Value [Line Items]    
Derivative liability, fair value 2.6 3.4
Market Approach Valuation Technique [Member] | Fair betfred gamesValue, Inputs, Level 3 [Member] | Commodity Contract [Member] | Other Current Assets [Member]    
Derivatives, Fair Value [Line Items]    
Derivative asset, fair value 0.0 0.0
Market Approach Valuation Technique [Member] | Fair betfred gamesValue, Inputs, Level 3 [Member] | Commodity Contract [Member] | Other Current Liabilities [Member]    
Derivatives, Fair Value [Line Items]    
Derivative liability, fair value $ 0.0 $ 0.6