Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2014

Fair Value Disclosures [Abstract]

Schedule of assets and liabilities measured at fair value on a recurring basis

The following table sets forth the assets and liabilities measured at fair value on a recurring basis, by input level, as of June 30, 2014 and December 31, 2013:

	June 30, 2014
	Level 1		Level 2			Level 3		Total
	(in millions)
Location and Description
Cash equivalents	$	81.0	$	—		$	—	$	81.0
Other current assets (investments)	76.2		2.9			—		79.1
Other current assets (other derivative agreements)	—		69.2			—		69.2
Other long-term assets (other derivative agreements)	—		5.1			—		5.1
Total Assets	$	157.2	$	77.2		$	—	$	234.4
Other current liabilities (interest rate swaps)	—		(0.9		)	—		(0.9		)
Other current liabilities (biofuel blending obligations)	—		(30.3		)	—		(30.3		)
Other long-term liabilities (interest rate swaps)	—		(0.6		)	—		(0.6		)
Total Liabilities	$	—	$	(31.8	)	$	—	$	(31.8	)

	December 31, 2013
	Level 1		Level 2			Level 3		Total
	(in millions)
Location and Description
Cash equivalents	$	81.0	$	—		$	—	$	81.0
Other current assets (other derivative agreements)	—		0.9			—		0.9
Other long-term assets (other derivative agreements)	—		0.1			—		0.1
Total Assets	$	81.0	$	1.0		$	—	$	82.0
Other current liabilities (other derivative agreements)	—		(15.3		)	—		(15.3		)
Other current liabilities (interest rate swaps)	—		(0.9		)	—		(0.9		)
Other current liabilities (biofuel blending obligation)	—		(16.2		)	—		(16.2		)
Other long-term liabilities (other derivative agreements)	—		(1.8		)	—		(1.8		)
Other long-term liabilities (interest rate swaps)	—		(1.0		)	—		(1.0		)
Total Liabilities	$	—	$	(35.2	)	$	—	$	(35.2	)