Financial Instruments - Schedule of (Losses) Gains on Derivative Financial Instruments Recorded in Consolidated Statement of Income (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2023
Deal-contingent forward contracts
Derivative [Line Items]
Gains (loss) on derivative financial instruments	$ 0	$ 0	$ (390)
Forward exchange contracts
Derivative [Line Items]
Gains (loss) on derivative financial instruments	(63)	11	(7)
Costless collar contracts
Derivative [Line Items]
Gains (loss) on derivative financial instruments	0	0	12
Cross-currency swap contracts
Derivative [Line Items]
Gains (loss) on derivative financial instruments	$ 0	$ 0	$ (19)