DEBT (Details) - USD ($) $ in Millions	1 Months Ended
	Oct. 31, 2017	Sep. 30, 2017
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%
Interest Rate Contract [Member]
Line of Credit Facility [Line Items]
Notional amounts		$ 200
Subsequent Event [Member] | 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