ACCOUNTS PAYABLE AND ACCRUED LIABILITIES - Narrative (Details) - USD ($) $ in Millions		12 Months Ended
	Mar. 02, 2026	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2024	Jan. 31, 2026
Business Combination [Line Items]
Venture agreement terminal obligation, fair value			$ 476
Venture Agreement terminal obligation, net		$ 0	501
Venture agreement payment	$ 476	$ 476	$ 0	$ 0
Glad
Business Combination [Line Items]
Percentage of ownership by venture partner			20.00%		20.00%