Derivative Instruments And Hedging Activities (Narrative) (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Period	1 year
Gain (loss) on economic hedges	$ 22,000	$ (28,599,000)
Net unrealized gain in accumulated other comprehensive income related to accounting hedges	(42,800,000)
Net unrealized gain to be transferred from accumulated other comprehensive income to statement of income	(54,900,000)
Cost of Products Sold [Member]
Derivative [Line Items]
Gain (loss) on economic hedges	(26,000)	(33,592,000)
Operating Expense [Member]
Derivative [Line Items]
Gain (loss) on economic hedges	48,000	4,993,000
HEP [Member] | Interest Rate Contract [Member]
Derivative [Line Items]
Credit agreement advance	305,000,000
Credit agreement advance maturing in 2016	155,000,000
Fixed interest rate	0.74%
Rate added to fixed base rate	2.00%
Effective interest rate on debt	2.74%
Credit agreement advance maturing in 2017	$ 150,000,000
HEP [Member] | Current Interest Rate Swap [Member]
Derivative [Line Items]
Fixed interest rate	0.99%
Effective interest rate on debt	2.99%