Notional Amounts of Outstanding Derivative Instruments Measured in U.S. Dollar Equivalents (Detail) - USD ($) $ in Millions	Mar. 31, 2023	Jun. 30, 2022
Designated as Hedging Instruments | Foreign Exchange Contracts | Derivatives Purchased
Derivative [Line Items]
Notional amounts	$ 1,492	$ 635
Designated as Hedging Instruments | Interest Rate Contracts | Derivatives Purchased
Derivative [Line Items]
Notional amounts	1,108	1,139
Not Designated as Hedging Instruments | Foreign Exchange Contracts | Derivatives Purchased
Derivative [Line Items]
Notional amounts	10,232	10,322
Not Designated as Hedging Instruments | Foreign Exchange Contracts | Derivatives Sold
Derivative [Line Items]
Notional amounts	20,460	21,606
Not Designated as Hedging Instruments | Other Contracts | Derivatives Purchased
Derivative [Line Items]
Notional amounts	4,787	2,773
Not Designated as Hedging Instruments | Other Contracts | Derivatives Sold
Derivative [Line Items]
Notional amounts	$ 2,952	$ 544