General (Details)	9 Months Ended
	Sep. 30, 2012 segment Terminals mi subsidiary
Schedule of Equity Method Investments [Line Items]
Miles of pipe	53,000
Number of pipeline terminals owned interest in and or operated	180
Number of reportable segments	5
Number of subsidiaries which require vote for voluntary bankruptacy	2
Ownership Interest in KMP	13.00%
Series A Cumulative Preferred Stock [Member]
Schedule of Equity Method Investments [Line Items]
Shares issued	100,000
Rockies Express Pipeline LLC [Member]
Schedule of Equity Method Investments [Line Items]
Ownership interest	50.00%