RISK MANAGEMENT ACTIVITIES AND FAIR VALUE MEASUREMENTS - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Collateral already posted, aggregate fair value	$ 307	$ 1,088
Cash equivalents	8,000	6,800
Fair value of long-term debt	27,700	26,900
Current portion of long-term debt instruments	$ 3,800	$ 3,900
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	OTHER NONCURRENT ASSETS, Prepaid expenses and other current assets	OTHER NONCURRENT ASSETS, Prepaid expenses and other current assets
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Accrued and other liabilities, OTHER NONCURRENT LIABILITIES	Accrued and other liabilities, OTHER NONCURRENT LIABILITIES
Fair Value Hedging | Underlying, Other
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Carrying amount of the underlying debt obligation	$ 2,700	$ 3,600
Net Investment Hedging | Underlying, Other
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Carrying amount of the underlying debt obligation	$ 11,900	$ 11,800