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FINANCIAL INSTRUMENTS - Derivatives (Details) € in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2024 USD ($)	Mar. 31, 2023 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2021 EUR (€)
Interest rate swap agreements \| Fixed Rate Notes Due 2038
Derivatives, Fair Value [Line Items]
Face amount of debt			$ 1,650
Interest rate swap agreements \| Floating Rate Note Due 2038
Derivatives, Fair Value [Line Items]
Face amount of debt			1,000
Derivatives designated as hedging instruments: \| Interest rate swap agreements \| Fair Value Hedging
Derivatives, Fair Value [Line Items]
Derivative, notional amount			$ 1,000
Derivatives designated as hedging instruments: \| Net investment hedge \| Net investment hedge
Derivatives, Fair Value [Line Items]
Derivative, notional amount				$ 1,000	€ 819
Derivative, fixed interest rate				4.73%	4.73%
Derivative, average fixed interest rate				3.26%	3.26%
Derivatives not designated as hedging instruments: \| Foreign Exchange Contracts \| Other Nonoperating Income (Expense)
Derivatives, Fair Value [Line Items]
Foreign currency contracts loss	$ 21	$ 19