RECENT ACCOUNTING PRONOUNCEMENTS Adoption of ASU 2014-09 - Textuals (Details) - Previously Recognized Amount on Open Contracts at Time of Adoption of Revenue ASU [Member] $ in Millions	6 Months Ended
	Jun. 30, 2018 USD ($)
Sales Revenue, Net [Member]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification	$ 49
Operating Income (Loss) [Member]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification	5
Retained Earnings [Member] | Initial Application Period Cumulative Effect Transition [Domain]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification	$ 4