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PENSION PLANS (Details 8)
12 Months Ended
Dec. 31, 2012
Target Allocation [Abstract]  
U.S. equities (in hundredths) 6.00%
Non-U.S. equities (in hundredths) 6.00%
Fixed income/cash (in hundredths) 61.00%
Alternative investments (in hundredths) 7.00%
Absolute return strategies (in hundredths) 20.00%
Target Range [Abstract]  
U.S. equities, minimum, (in hundredths) 0.00%
U.S. equities, maximum, (in hundredths) 14.00%
Non-U.S. equities, minimum, (in hundredths) 0.00%
Non-U.S. equities, maximum, (in hundredths) 14.00%
Fixed income/cash, minimum, (in hundredths) 44.00%
Fixed income/cash, maximum, (in hundredths) 76.00%
Alternative investments, minimum (in hundredths) 0.00%
Alternative investments, maximum, (in hundredths) 28.00%
Absolute return strategies, minimum, (in hundredths) 10.00%
Absolute return strategies, maximum, (in hundredths) 30.00%