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FAIR VALUE MEASUREMENTS (Details 2) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Long-Term Debt
Carrying amount of total long-term debt exclusive of capital leases	$ 799us-gaap_LongTermDebt	$ 739us-gaap_LongTermDebt
Fair market value	$ 829us-gaap_LongTermDebtFairValue	$ 715us-gaap_LongTermDebtFairValue

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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