FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS (Narrative) (Details) - USD ($)	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	May 31, 2018	Sep. 30, 2017
Derivative [Line Items]
Maximum contract duration	2 years
Settlement of interest rate forward contracts	$ 0	$ 0
Cash flow hedge gain (loss) to be reclassified within twelve months	(3,000,000)
Derivative instruments subject to contractually defined counterparty liability position limits	0	1,000,000
Commodity Contract [Member]
Derivative [Line Items]
Cash margin balances amount	$ 2,000,000	1,000,000
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	$ 34,000,000	26,000,000
Jet Fuel Swaps [Member]
Derivative [Line Items]
Notional amounts	10,000,000	14,000,000
Soybean Oil Futures [Member]
Derivative [Line Items]
Notional amounts	24,000,000	12,000,000
Purchases of Inventory [Member] | Foreign Exchange Contract [Member]
Derivative [Line Items]
Notional amounts	50,000,000	$ 49,000,000
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	14,000,000
Senior Long-Term Notes And Debentures; 3.10%, $400 Due October 2027 [Member]
Derivative [Line Items]
Face value	400,000,000			$ 400,000,000
Senior Long-Term Notes And Debentures; 3.90%, $500 Due May 2028 [Member]
Derivative [Line Items]
Face value	$ 500,000,000		$ 500,000,000