Components of Other Income (Expense), Net (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023
Other Income and Expenses [Abstract]
Interest and dividends income	$ 600	$ 734	$ 1,281	$ 1,900
Interest expense	(594)	(909)	(1,176)	(1,434)
Net recognized gains (losses) on investments	(860)	69	(397)	(38)
Net losses on derivatives	(116)	(267)	(454)	(174)
Net gains (losses) on foreign currency remeasurements	(153)	36	23	(65)
Other, net	(1,165)	(169)	(1,848)	(306)
Total	$ (2,288)	$ (506)	$ (2,571)	$ (117)