Notional Amounts of Outstanding Derivative Instruments Measured in U.S. Dollar Equivalents (Detail) - USD ($) $ in Millions	Mar. 31, 2022	Jun. 30, 2021
Designated as Hedging Instruments | Foreign Exchange Contracts | Derivatives Purchased
Derivative [Line Items]
Notional amounts	$ 635	$ 635
Designated as Hedging Instruments | Foreign Exchange Contracts | Derivatives Sold
Derivative [Line Items]
Notional amounts	0	6,081
Designated as Hedging Instruments | Interest Rate Contracts | Derivatives Purchased
Derivative [Line Items]
Notional amounts	1,160	1,247
Not Designated as Hedging Instruments | Foreign Exchange Contracts | Derivatives Purchased
Derivative [Line Items]
Notional amounts	8,151	14,223
Not Designated as Hedging Instruments | Foreign Exchange Contracts | Derivatives Sold
Derivative [Line Items]
Notional amounts	13,929	23,391
Not Designated as Hedging Instruments | Other Contracts | Derivatives Purchased
Derivative [Line Items]
Notional amounts	2,757	2,456
Not Designated as Hedging Instruments | Other Contracts | Derivatives Sold
Derivative [Line Items]
Notional amounts	$ 869	$ 763