Annual report pursuant to Section 13 and 15(d)

COMMITMENTS AND CONTINGENCIES (Details)

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COMMITMENTS AND CONTINGENCIES (Details) (USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Other Commitments [Line Items]      
Other Commitment $ 14,300,000,000 $ 14,600,000,000  
Other Commitment, Due in Next Twelve Months 1,200,000,000    
Other Commitment, Due in Second Year 900,000,000    
Other Commitment, Due in Third Year 700,000,000    
Other Commitment, Due in Fourth Year 600,000,000    
Other Commitment, Due in Fifth Year 1,000,000,000    
Other Commitment, Due after Fifth Year 9,900,000,000    
Capital investment, future payments (109,300,000) 152,500,000 60,100,000
Accrual for Environmental Loss Contingencies 8,400,000 15,700,000  
Bloom Lake [Member]
     
Other Commitments [Line Items]      
Capital investment committed 1,300,000,000    
Capital expenditures related to commitment 1,200,000,000    
Capital investment, future payments $ 40,000,000