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Gains (Losses), Net of Tax, on Derivative Instruments Recognized on Consolidated Comprehensive Income Statements (Detail) - USD ($)
$ in Millions
12 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2021
Cash Flow Hedges | Foreign Exchange Contracts      
Derivative Instruments, Gain (Loss) [Line Items]      
Included in effectiveness assessment $ 34 $ (57) $ 34