FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2014
Derivative [Line Items]
Maximum contract duration	2 years
Settlement of interest rate forward contracts	$ 0	$ 0	$ 25
Cash flow hedge gain (loss) to be reclassified within twelve months	(8)
Derivative instruments subject to contractually defined counterparty liability position limits	1	4
Senior notes with an annual fixed interest rate of 3.50% [Member]
Derivative [Line Items]
Face value				$ 500
Commodity Contract [Member]
Derivative [Line Items]
Cash margin balances amount	$ 1	1
Interest Rate Contract [Member]
Derivative [Line Items]
Amortization period of settlement payment	10 years
Total Commodity Purchase Derivative Contracts [Member]
Derivative [Line Items]
Maximum duration, commodity contracts	2 years
Notional amounts	$ 26	30
Jet Fuel Swaps [Member]
Derivative [Line Items]
Notional amounts	14	16
Soybean Oil Futures [Member]
Derivative [Line Items]
Notional amounts	12	14
Purchases of Inventory [Member] | Foreign Exchange Contract [Member]
Derivative [Line Items]
Notional amounts	49	$ 84
Other Assets [Member] | Reported Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member] | Trust Assets for nonqualified deferred compensation plans [Member]
Derivative [Line Items]
Increase in deferred compensation plan	$ 20