RISK MANAGEMENT ACTIVITIES AND FAIR VALUE MEASUREMENTS - DERIVATIVE INSTRUMENTS, EFFECT ON OTHER COMPREHENSIVE INCOME (LOSS) (Details) - Derivatives in Net Investment Hedging Relationships - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net		$ 64	$ 18	$ 179	$ 50
Accumulated Other Comprehensive Income, Gain (Loss)		$ (242)	$ 237	$ (406)	$ 804
Foreign Exchange Contract
Derivative Instruments, Gain (Loss) [Line Items]
Description of Location of Gain (Loss) on Net Investment Hedges in Financial Statements	[1],[2]	(266)	104	(571)	530

[1] For the derivatives in net investment hedging relationships, the amount of gain excluded from effectiveness testing, which was recognized in earnings, was $64 and $18 for the three months ended March 31, 2023 and 2022, respectively. The amount of gain excluded from effectiveness testing was $179 and $50 for the nine months ended March 31, 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 Accumulated other comprehensive income (AOCI) for such instruments was $(242) and $237 for the three months ended March 31, 2023 and 2022, respectively. The amount of gain/(loss) recognized in Accumulated other comprehensive income (AOCI) for such instruments was $(406) and $804 for the nine months ended March 31, 2023 and 2022, respectively.