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RETIREMENT PLANS (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
United States Pension Plans of US Entity, Defined Benefit [Member]    
Components of net periodic benefit cost [Abstract]    
Service cost $ 9 $ 10
Interest cost 17 18
Expected return on assets (35) (34)
Prior service credit, net (1) (1)
Net periodic benefit (credit) cost (10) (7)
Foreign Pension Plans, Defined Benefit [Member]    
Components of net periodic benefit cost [Abstract]    
Service cost 3 3
Interest cost 5 6
Expected return on assets (8) (8)
Prior service credit, net 0 0
Net periodic benefit (credit) cost 0 1
Post Retirement Welfare Plans [Member]    
Components of net periodic benefit cost [Abstract]    
Service cost 1 2
Interest cost 6 7
Expected return on assets (2) (2)
Prior service credit, net (10) (10)
Net periodic benefit (credit) cost $ (5) $ (3)