Gains (Losses) on Derivative Instruments Recognized in Other Income (Expense), Net (Detail) - Other Income (Expense), Net - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2025	Dec. 31, 2024
Foreign Exchange Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gains (Losses) on Derivatives Not Designated as Hedges	$ (54)	$ 1,138	$ 327	$ 755
Equity Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gains (Losses) on Derivatives Not Designated as Hedges	31	(111)	1,610	(459)
Other Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gains (Losses) on Derivatives Not Designated as Hedges	6	(26)	6	(2)
Fair Value Hedges \| Interest Rate Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Derivatives	(1)	(18)	(2)	2
Hedged items	(7)	8	(15)	(24)
Cash Flow Hedges \| Foreign Exchange Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Amount reclassified from accumulated other comprehensive loss	$ (7)	$ (106)	$ (12)	$ (57)

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