FAIR VALUE MEASUREMENTS AND FINANCIAL INSTRUMENTS (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Jun. 30, 2012
Derivative [Line Items]
Derivative instruments subject to contractually defined counterparty liability position limits	$ 0		$ 0		$ 4
Estimated amount of the existing net loss to be reclassified into earnings, in the next 12 months, maximum	3		3
Gain from derivatives not designated as hedging instruments	0	0	1	0
Estimated fair value of long-term debt	2,847		2,847		2,606
Commodity purchase contracts [Member]
Derivative [Line Items]
Maximum contract duration			18 months
Notional value of commodity derivatives	25		25		39
Interest rate contracts [Member]
Derivative [Line Items]
Maximum contract duration			12 months
Payment to settle interest rate forward contracts			4	36
Notional value of interest rate forward contracts	0		0		250
Foreign exchange contracts [Member]
Derivative [Line Items]
Maximum contract duration			20 months
Notional value of foreign currency derivatives	17		17		17
Jet Fuel [Member] | Commodity purchase contracts [Member]
Derivative [Line Items]
Notional value of commodity derivatives	13		13		22
Soybean Oil [Member] | Commodity purchase contracts [Member]
Derivative [Line Items]
Notional value of commodity derivatives	12		12		14
Crude Oil [Member] | Commodity purchase contracts [Member]
Derivative [Line Items]
Notional value of commodity derivatives					3
Canada [Member] | Foreign exchange contracts [Member]
Derivative [Line Items]
Notional value of foreign currency derivatives	40		40		28
Australia [Member] | Foreign exchange contracts [Member]
Derivative [Line Items]
Notional value of foreign currency derivatives	30		30		0
New Zealand [Member] | Foreign exchange contracts [Member]
Derivative [Line Items]
Notional value of foreign currency derivatives	$ 1		$ 1		$ 0