RECENT ACCOUNTING PRONOUNCEMENTS (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
New Accounting Pronouncements or Change in Accounting Principle
INCOME TAX PROVISION	$ 48	$ 42	$ 95	$ 81
NET INCOME	$ 81	74	$ 161	139
Accounting Standards Update 2016-09
New Accounting Pronouncements or Change in Accounting Principle
INCOME TAX PROVISION		42		81
NET INCOME		74		139
Accounting Standards Update 2016-09 | Reported
New Accounting Pronouncements or Change in Accounting Principle
INCOME TAX PROVISION		45		85
NET INCOME		71		135
Accounting Standards Update 2016-09 | Adjustment
New Accounting Pronouncements or Change in Accounting Principle
INCOME TAX PROVISION		(3)		(4)
NET INCOME		$ 3		$ 4