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DEBT -Amendment No. 20 and No. 21 and Incremental Term Loan Assumption Agreement (Details) - USD ($) $ in Millions		12 Months Ended
	Jun. 30, 2026	Sep. 30, 2026	Apr. 17, 2026	Feb. 13, 2026
Debt Instrument [Line Items]
Debt instrument, face amount		$ 33,780.0
Tranche N \| Term loans
Debt Instrument [Line Items]
Debt instrument, face amount			$ 1,000.0	$ 800.0
Debt instrument, quarterly principal payment	$ 4.5
Debt Instrument, Basis Spread on Variable Rate	2.50%	2.50%
Debt issuance costs		$ 17.0
Senior Subordinated Notes $1,200M due 2034 6.125% \| Senior Subordinated Notes
Debt Instrument [Line Items]
Debt instrument, face amount				$ 1,200.0
Interest rate				6.125%
Senior Subordinated Notes $500M due 2034 6.125% \| Senior Subordinated Notes
Debt Instrument [Line Items]
Debt instrument, face amount			$ 500.0
Interest rate			6.125%