EMPLOYEE BENEFIT PLANS (Reconciliation of Changes in Fair Value of Level III Assets) (Details) - Level 3 [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Schedule Of Reconciliation Of Changes In Fair Value Of Assets And Liabilities [Line Items]
Beginning of Period	$ 25	$ 23
Actual Return on Plan Assets:
Assets Held at Reporting Date	2	3
Purchases, Sales, and Settlements	(1)	(1)
End of Period	26	25
Private Equity
Schedule Of Reconciliation Of Changes In Fair Value Of Assets And Liabilities [Line Items]
Beginning of Period	7	7
Actual Return on Plan Assets:
Assets Held at Reporting Date	1	1
Purchases, Sales, and Settlements	(1)	(1)
End of Period	7	7
Real Estate
Schedule Of Reconciliation Of Changes In Fair Value Of Assets And Liabilities [Line Items]
Beginning of Period	18	16
Actual Return on Plan Assets:
Assets Held at Reporting Date	1	2
Purchases, Sales, and Settlements	0	0
End of Period	$ 19	$ 18