GOODWILL, TRADEMARKS AND OTHER INTANGIBLE ASSETS - Narrative (Details) - USD ($)	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022	Mar. 31, 2023
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	$ 29,000,000	$ 30,000,000	$ 31,000,000
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2025	28,000,000
2026	28,000,000
2027	29,000,000
2028	28,000,000
2029	11,000,000
Impairment tax benefit		$ 83,000,000
Impairment, Intangible Asset, Indefinite-Lived (Excluding Goodwill), Statement of Income or Comprehensive Income [Extensible Enumeration]		Goodwill, trademark and other asset impairments
Goodwill impairment		$ 306,000,000
Goodwill	$ 1,228,000,000	1,252,000,000	$ 1,558,000,000
Better Health VMS reporting unit
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Goodwill impairment		306,000,000
Goodwill		0
Trademarks
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Intangible asset impairment charges		$ 139,000,000
Trademarks
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Impaired trademarks, remaining net carrying value				$ 28,000,000
Estimated useful life (in years)		20 years