XML 46 R59.htm IDEA: XBRL DOCUMENT v2.4.0.6
ASSET RETIREMENT OBLIGATIONS (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Dec. 31, 2012
Change in the carrying amount of the asset retirement obligations      
Asset retirement obligation balance at beginning of period $ 20 $ 21  
Payments (1) (1)  
Asset retirement obligation balance at end of period 19 20  
Net book value of asset retirement obligation assets at end of year   1  
Depreciation expense 23 21  
Asset retirement obligations included in accrued expenses 5   6
Asset retirement obligations included in other liabilities 14   14
Maximum
     
Change in the carrying amount of the asset retirement obligations      
Depreciation expense $ 1 $ 1  
Lease termination
     
Asset retirement obligations      
Number of facilities to be closed 20    
Brine and waste disposal facilities
     
Asset retirement obligations      
Number of facilities to be closed 90    
Manufacturing facilities
     
Asset retirement obligations      
Number of facilities to be closed 30