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Property, Plant and Equipment, Significant Sales (Details) (USD $)
In Millions, unless otherwise specified
6 Months Ended 3 Months Ended 6 Months Ended 1 Months Ended 6 Months Ended 1 Months Ended 6 Months Ended 1 Months Ended 3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Marine transportation assets [Member]
Jun. 30, 2013
Marine transportation assets [Member]
Jun. 30, 2012
Marine transportation assets [Member]
Mar. 31, 2013
Seminole Pipeline segment [Member]
Jun. 30, 2013
Seminole Pipeline segment [Member]
Jun. 30, 2012
Seminole Pipeline segment [Member]
Jan. 31, 2013
Chemical Trucking Assets [Member]
Jun. 30, 2013
Chemical Trucking Assets [Member]
Jun. 30, 2012
Chemical Trucking Assets [Member]
Apr. 30, 2013
Lubrication oil and specialty chemical distribution assets [Member]
Jun. 30, 2013
Lubrication oil and specialty chemical distribution assets [Member]
Jun. 30, 2013
Lubrication oil and specialty chemical distribution assets [Member]
Jun. 30, 2012
Lubrication oil and specialty chemical distribution assets [Member]
Significant Acquisitions and Disposals [Line Items]                              
Proceeds from asset sales and insurance recoveries $ 199.2 $ 1,156.7 $ 14.3 $ 14.9 $ 2.4 $ 86.9 $ 86.9 $ 0 $ 29.5 $ 29.5 $ 0 $ 35.3   $ 35.3 $ 0
Gains (losses) attributable to asset sales and insurance recoveries $ 58.2 $ 100.3 $ (6.7) $ (6.7) $ (3.1) [1] $ 52.5 $ 52.5 $ 0 [1] $ (0.5) $ (0.5) $ 0 [1]   $ 6.7 $ 6.7 $ 0 [1]
[1] These amounts are a component of "Operating costs and expenses" as presented on our Unaudited Condensed Statements of Consolidated Operations.