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ASSETS HELD FOR SALE AND ASSET IMPAIRMENTS Narrative 1 (Details) (Asphalt Operations, USD $)
In Millions, unless otherwise specified
6 Months Ended
Jun. 30, 2012
Asphalt Operations
 
Long Lived Assets Held-for-sale [Line Items]  
Percent Voting Interest To Be Sold 50.00%
Sale price of equity interests $ 175.0
Maximum Amount Available Under Credit Facility to Related Party 250.0
Term of credit facility to related party seven years
Maximum Amount Of Guarantees To Related Party $ 150.0