RISK MANAGEMENT ACTIVITIES AND FAIR VALUE MEASUREMENTS - GAIN (LOSS) ON DERIVATIVE INSTRUMENTS (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Derivatives Not Designated as Hedging Instruments | Foreign Currency Contract
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Recognized in Earnings	[1]	$ (1)	$ (176)	$ (2)	$ (184)
Derivatives in Cash Flow Hedging Relationships | Foreign Currency Contract
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Reclassified from AOCI into Earnings	[2]	0	107	0	99
Derivatives in Fair Value Hedging Relationships
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Recognized in Earnings	[3]	0	0	0	0
Derivatives in Fair Value Hedging Relationships | Interest Rate Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Recognized in Earnings	[3]	(38)	(152)	(41)	(180)
Derivatives in Fair Value Hedging Relationships | Debt
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Recognized in Earnings	[3]	$ 38	$ 152	$ 41	$ 180

[1] The gain or loss on foreign currency contracts not designated as hedging instruments is included in the Consolidated Statements of Earnings in SG&A. This gain or loss substantially offsets the foreign currency mark-to-market impact of the related exposure.

[2] The gain or loss on cash flow hedging relationships is reclassified from AOCI into net income in the same period during which the related item affects earnings. Such amounts related to foreign currency contracts are included in the Consolidated Statements of Earnings in Selling, general and administrative expense (SG&A).

[3] The gain or loss on the derivative instrument as well as the offsetting loss or gain on the hedged item attributable to the hedged risk are both recognized in the Consolidated Statements of Earnings in Interest expense.