FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Schedule of Assets and Liabilities for Fair Value of Derivative Instruments (Details) - USD ($) $ in Millions	Mar. 31, 2025	Jun. 30, 2024
Carrying Amount
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	$ 2	$ 1
Liabilities	1	2
Estimated Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	2	1
Liabilities	1	2
Commodity purchase derivative contracts | Level 2 | Carrying Amount
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	0	1
Liabilities	1	0
Commodity purchase derivative contracts | Level 2 | Estimated Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	0	1
Liabilities	1	0
Commodity purchase derivative contracts | Level 1 | Carrying Amount
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	1	0
Liabilities	0	2
Commodity purchase derivative contracts | Level 1 | Estimated Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	1	0
Liabilities	0	2
Foreign exchange forward contract | Level 2 | Carrying Amount
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	1	0
Foreign exchange forward contract | Level 2 | Estimated Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	$ 1	$ 0