Fair Values of Derivative Instruments (Detail) - USD ($) $ in Millions	Mar. 31, 2022	Jun. 30, 2021
Derivatives Fair Value [Line Items]
Derivative Assets	$ 330	$ 399
Gross amounts of derivatives offset in the balance sheet, assets	(175)	(141)
Cash collateral received, assets	0	0
Net amounts of derivatives, assets	155	258
Derivative Liabilities	(429)	(335)
Gross amounts of derivatives offset in the balance sheet, liabilities	177	142
Cash collateral received, liabilities	(175)	(42)
Net amounts of derivatives, liabilities	(427)	(235)
Level 1
Derivatives Fair Value [Line Items]
Derivative Assets	0	0
Derivative Liabilities	0	0
Level 2
Derivatives Fair Value [Line Items]
Derivative Assets	314	396
Derivative Liabilities	(429)	(335)
Level 3
Derivatives Fair Value [Line Items]
Derivative Assets	16	3
Derivative Liabilities	0	0
Designated as Hedging Instruments | Foreign Exchange Contracts
Derivatives Fair Value [Line Items]
Derivative Assets	0	76
Derivative Liabilities	(39)	(8)
Designated as Hedging Instruments | Interest Rate Contracts
Derivatives Fair Value [Line Items]
Derivative Assets	0	40
Derivative Liabilities	(43)	0
Not Designated as Hedging Instruments | Foreign Exchange Contracts
Derivatives Fair Value [Line Items]
Derivative Assets	234	227
Derivative Liabilities	(322)	(291)
Not Designated as Hedging Instruments | Other Contracts
Derivatives Fair Value [Line Items]
Derivative Assets	96	56
Derivative Liabilities	(25)	(36)
Short-term Investments
Derivatives Fair Value [Line Items]
Net amounts of derivatives, assets	33	78
Other Current Assets
Derivatives Fair Value [Line Items]
Net amounts of derivatives, assets	167	137
Other Long-term Assets
Derivatives Fair Value [Line Items]
Net amounts of derivatives, assets	(45)	43
Other Current Liabilities
Derivatives Fair Value [Line Items]
Net amounts of derivatives, liabilities	(311)	(182)
Other Long-term Liabilities
Derivatives Fair Value [Line Items]
Net amounts of derivatives, liabilities	$ (116)	$ (53)