Properties, Plants and Equipment (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Property, Plant and Equipment [Line Items]
Capitalized interest	$ 9.1	$ 17.2	$ 7.2
Depreciation expense	182.9	125.0	94.0
HEP
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 55.5	$ 31.2	$ 26.9