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FAIR VALUE MEASUREMENTS (Details 2) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Long-Term Debt
Carrying amount of total long-term debt exclusive of capital leases	$ 688	$ 688
Fair market value	$ 747	$ 752

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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