Debt - Additional Information (Detail) - USD ($) $ in Millions	9 Months Ended
	Mar. 31, 2024	Jun. 30, 2023
Debt Instrument [Line Items]
Long-term debt fair value	$ 43,200	$ 46,200
Short-term debt	$ 20,535	$ 0
Commercial Paper
Debt Instrument [Line Items]
Short term debt, weighted average interest rate	5.40%
Commercial Paper | Maximum
Debt Instrument [Line Items]
Short term borrowings maturity	216 days
Commercial Paper | Minimum
Debt Instrument [Line Items]
Short term borrowings maturity	6 days