RISK MANAGEMENT ACTIVITIES AND FAIR VALUE MEASUREMENTS - GAINS AND LOSSES ON DERIVATIVES IN NET INVESTMENT HEDGES (Details) - USD ($) $ in Millions		12 Months Ended
		Jun. 30, 2023	Jun. 30, 2022
Other Comprehensive Income (Loss), Net Investment Hedge, Gain (Loss), before Reclassification and Tax	[1],[2]	$ (544)	$ 1,033
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net		238	73
Accumulated Other Comprehensive Income, Gain (Loss)		$ (315)	$ 1,639

[1] For the derivatives in net investment hedging relationships, the amount of gain excluded from effectiveness testing, which was recognized in earnings, was $238 and $73 for the fiscal years ended June 30, 2023 and 2022, respectively.

[2] In addition to the foreign currency derivative contracts designated as net investment hedges, certain of our foreign currency denominated debt instruments are designated as net investment hedges. The amount of gain/(loss) recognized in AOCI for such instruments was $(315) and $1,639, for the fiscal years ended June 30, 2023 and 2022, respectively.