FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS (Narrative) (Details) - USD ($) $ in Millions	6 Months Ended
	Dec. 31, 2016	Jun. 30, 2016
Derivative [Line Items]
Maximum duration, foreign exchange contracts	2 years
Estimated amount of the existing net gain (loss) to be reclassified into earnings in the next 12 months	$ 4
Derivatives liabilities	1	$ 5
Derivative instruments subject to contractually defined counterparty liability position limits	0	4
Foreign Exchange Contract [Member]
Derivative [Line Items]
Notional amounts	$ 36	84
Total Commodity Purchase Derivative Contracts [Member]
Derivative [Line Items]
Maximum duration, commodity contracts	2 years
Notional amounts	$ 20	30
Cash margin balances amount	1	1
Jet Fuel Swaps [Member]
Derivative [Line Items]
Notional amounts	12	16
Soybean Oil Futures [Member]
Derivative [Line Items]
Notional amounts	$ 8	$ 14