Gains (Losses) on Derivative Instruments Recognized on Consolidated Income Statements (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Revenue | Foreign Exchange Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gains (Losses) on Derivatives Not Designated as Hedges	$ 0	$ 0	$ 0
Revenue | Other Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gains (Losses) on Derivatives Not Designated as Hedges	0	0	0
Other Income (Expense), Net | Foreign Exchange Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gains (Losses) on Derivatives Not Designated as Hedges	27	(123)	(97)
Other Income (Expense), Net | Other Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gains (Losses) on Derivatives Not Designated as Hedges	9	50	38
Fair Value Hedges | Revenue | Foreign Exchange Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Derivatives	0	0	0
Hedged items	0	0	0
Excluded from effectiveness assessment	0	0	0
Fair Value Hedges | Revenue | Interest Rate Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Derivatives	0	0	0
Hedged items	0	0	0
Fair Value Hedges | Other Income (Expense), Net | Foreign Exchange Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Derivatives	193	1	(130)
Hedged items	(188)	3	130
Excluded from effectiveness assessment	30	139	168
Fair Value Hedges | Other Income (Expense), Net | Interest Rate Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Derivatives	(37)	93	0
Hedged items	53	(93)	0
Cash Flow Hedges | Revenue | Foreign Exchange Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Amount reclassified from accumulated other comprehensive income	0	0	341
Excluded from effectiveness assessment	0	0	(64)
Cash Flow Hedges | Other Income (Expense), Net | Foreign Exchange Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Amount reclassified from accumulated other comprehensive income	17	0	0
Excluded from effectiveness assessment	$ 0	$ 0	$ 0