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COMMITMENTS AND CONTINGENT LIABILITIES (Purchase Commitments) (Details) (Inventories [Member], USD $)
In Millions, unless otherwise specified
Dec. 31, 2012
Inventories [Member]
 
Long-term Purchase Commitment [Line Items]  
Fixed and Determinable Portion of Take-or-pay obligations, due within 2013 $ 11
Fixed and Determinable Portion of Take-or-pay obligations, due within 2014 11
Fixed and Determinable Portion of Take-or-pay obligations, due within 2015 8
Fixed and Determinable Portion of Take-or-pay obligations, due within 2016 6
Fixed and Determinable Portion of Take-or-pay obligations, due within 2017 6
Fixed and Determinable Portion of Take-or-pay obligations, due within 2018 and beyond 10
Unrecorded Unconditional Purchase Obligation $ 52