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DEBT (Details) - USD ($)
$ in Millions
1 Months Ended 9 Months Ended
Oct. 31, 2017
Mar. 31, 2018
Mar. 31, 2017
Mar. 26, 2018
Sep. 30, 2017
Feb. 08, 2017
Line of Credit Facility [Line Items]            
Repayments of debt   $ 400 $ 0      
Senior Notes with an Annual Fixed Interest Rate of 3.10% [Member]            
Line of Credit Facility [Line Items]            
Face value of debt         $ 400  
Annual fixed interest rate         3.10%  
Effective interest rate         3.13%  
Senior notes with an annual fixed interest rate of 5.95% [Member]            
Line of Credit Facility [Line Items]            
Annual fixed interest rate 5.95%          
Repayments of debt $ 400          
Interest Rate Contract [Member]            
Line of Credit Facility [Line Items]            
Notional amounts         $ 200  
Revolving Credit Facility [Member] | Revolving Credit Agreement, Matures February 2022 [Member] | Line of Credit [Member]            
Line of Credit Facility [Line Items]            
Line of credit facility, borrowing capacity           $ 1,100
Line of credit facility, amount outstanding   0        
Line of Credit [Member] | Revolving Credit Facility [Member] | Revolving Credit Agreement, Matures March 2019 [Member]            
Line of Credit Facility [Line Items]            
Line of credit facility, borrowing capacity       $ 250    
Line of credit facility, amount outstanding   $ 0