Gains (Losses) on Derivative Instruments Recognized in Other Income (Expense), Net (Detail) - Other Income (Expense), Net - USD ($) $ in Millions	12 Months Ended
Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2023
Foreign Exchange Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gains (Losses) on Derivatives Not Designated as Hedges	$ (938)	$ 367	$ (73)
Equity Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gains (Losses) on Derivatives Not Designated as Hedges	(266)	(177)	(420)
Other Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gains (Losses) on Derivatives Not Designated as Hedges	21	(15)	(41)
Fair Value Hedges \| Interest Rate Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Derivatives	5	(23)	(65)
Hedged items	(45)	(25)	38
Cash Flow Hedges \| Foreign Exchange Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Amount reclassified from accumulated other comprehensive loss	$ 103	$ (48)	$ 61

Amount of gain (loss) from the increase (decrease) in fair value of derivative and nonderivative instruments designated as fair value hedging instruments recognized in the income statement.

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Amount of the increase (decrease) in fair value of the hedged item in a fair value hedge recognized in the income statement.

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Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments.

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Amount, before tax, of reclassification of gain (loss) from accumulated other comprehensive income (AOCI) for derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

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