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OTHER FINANCIAL DATA - GOODWILL (Details) (USD $)
In Millions, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Goodwill [Line Items]    
Goodwill, Beginning Balance $ 903us-gaap_Goodwill $ 931us-gaap_Goodwill [1]
Goodwill, Ending Balance $ 903us-gaap_Goodwill $ 931us-gaap_Goodwill [1]
[1]
Derived from audited financial statements.