Fair Values of Derivative Instruments (Detail) - USD ($) $ in Millions	Mar. 31, 2024	Jun. 30, 2023
Derivatives Fair Value [Line Items]
Derivative Assets	$ 242	$ 469
Gross amounts of derivatives offset in the balance sheet, assets	(125)	(202)
Cash collateral received, assets	0	0
Net amounts of derivatives, assets	$ 117	$ 267
Derivative Asset, Current, Statement of Financial Position [Extensible Enumeration]	Other current assets	Other current assets
Derivative Asset, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other long-term assets	Other long-term assets
Derivative Liabilities	$ (787)	$ (805)
Gross amounts of derivatives offset in the balance sheet, liabilities	126	206
Cash collateral received, liabilities	(17)	(125)
Net amounts of derivatives, liabilities	$ (678)	$ (724)
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Other current liabilities	Other current liabilities
Derivative Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other long-term liabilities	Other long-term liabilities
Derivative Asset Statement of Financial Position [Extensible Enumeration not Disclosed Flag]	Net amounts of derivatives, assets	Net amounts of derivatives, assets
Derivative Liability Statement of Financial Position [Extensible Enumeration not Disclosed Flag]	Net amounts of derivatives, liabilities	Net amounts of derivatives, liabilities
Level 1
Derivatives Fair Value [Line Items]
Derivative Assets	$ 0	$ 0
Derivative Liabilities	0	0
Level 2
Derivatives Fair Value [Line Items]
Derivative Assets	233	462
Derivative Liabilities	(787)	(805)
Level 3
Derivatives Fair Value [Line Items]
Derivative Assets	9	7
Derivative Liabilities	0	0
Designated as Hedging Instruments | Foreign Exchange Contracts
Derivatives Fair Value [Line Items]
Derivative Assets	38	34
Derivative Liabilities	(68)	(67)
Designated as Hedging Instruments | Interest Rate Contracts
Derivatives Fair Value [Line Items]
Derivative Assets	6	16
Derivative Liabilities	0	0
Not Designated as Hedging Instruments | Foreign Exchange Contracts
Derivatives Fair Value [Line Items]
Derivative Assets	121	249
Derivative Liabilities	(192)	(332)
Not Designated as Hedging Instruments | Equity Contracts
Derivatives Fair Value [Line Items]
Derivative Assets	72	165
Derivative Liabilities	(526)	(400)
Not Designated as Hedging Instruments | Other Contracts
Derivatives Fair Value [Line Items]
Derivative Assets	5	5
Derivative Liabilities	(1)	(6)
Short-term Investments
Derivatives Fair Value [Line Items]
Net amounts of derivatives, assets	8	6
Other Current Assets
Derivatives Fair Value [Line Items]
Net amounts of derivatives, assets	103	245
Other Long-term Assets
Derivatives Fair Value [Line Items]
Net amounts of derivatives, assets	6	16
Other Current Liabilities
Derivatives Fair Value [Line Items]
Net amounts of derivatives, liabilities	(271)	(341)
Other Long-term Liabilities
Derivatives Fair Value [Line Items]
Net amounts of derivatives, liabilities	$ (407)	$ (383)