FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Narrative (Details) - USD ($)	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022	May 31, 2022
Derivative [Line Items]
Maximum contract duration (in years)	2 years
Maximum duration, interest rate contracts (in years)	3 years
Cash flow hedge gain (loss) to be reclassified within twelve months	$ 8,000,000
Derivative instruments subject to contractually defined counterparty liability position limits	0	$ 1,000,000
Asset impairment charges	0	445,000,000	$ 0
Goodwill impairment		306,000,000
Better Health VMS reporting unit
Derivative [Line Items]
Asset impairment charges		433,000,000
Goodwill impairment		306,000,000
Senior Long-Term Notes And Debentures; 4.40%, $500 Due May 2029
Derivative [Line Items]
Face value	500,000,000
Senior Long-Term Notes And Debentures; 4.60%, $600 Due May 2032
Derivative [Line Items]
Face value	600,000,000
Senior Notes
Derivative [Line Items]
Face value				$ 1,100,000,000,000
Senior Notes | Senior Long-Term Notes And Debentures; 4.40%, $500 Due May 2029
Derivative [Line Items]
Face value				500,000,000
Senior Notes | Senior Long-Term Notes And Debentures; 4.60%, $600 Due May 2032
Derivative [Line Items]
Face value				$ 600,000,000
Trademarks
Derivative [Line Items]
Trademarks, net		139,000,000
Interest rate derivative contracts
Derivative [Line Items]
Derivative, notional amount, additional contracts			650,000,000
Settlement of interest rate derivative contracts			114,000,000
Interest rate derivative contracts | Senior Long-Term Notes And Debentures; 4.40%, $500 Due May 2029
Derivative [Line Items]
Settlement of interest rate derivative contracts			$ 25,000,000
Amortization period of settlement payment (in years)			7 years
Interest rate derivative contracts | Senior Long-Term Notes And Debentures; 4.60%, $600 Due May 2032
Derivative [Line Items]
Settlement of interest rate derivative contracts			$ 89,000,000
Amortization period of settlement payment (in years)			10 years
Commodity purchase derivative contracts
Derivative [Line Items]
Cash margin balances amount	$ 3,000,000	0
Total Commodity Purchase Derivative Contracts
Derivative [Line Items]
Maximum duration, commodity contracts (in years)	2 years
Derivative, notional amount	$ 38,000,000	41,000,000
Jet Fuel Swaps
Derivative [Line Items]
Derivative, notional amount	11,000,000	12,000,000
Soybean Oil Futures
Derivative [Line Items]
Derivative, notional amount	27,000,000	29,000,000
Purchases of Inventory | Foreign exchange derivative contracts
Derivative [Line Items]
Derivative, notional amount	29,000,000	$ 51,000,000
Carrying Amount | Total assets in the fair value hierarchy
Derivative [Line Items]
Increase in deferred compensation plan	$ 25,000,000