v3.26.1
Gains (Losses), Net of Tax, on Derivative Instruments Recognized in Consolidated Comprehensive Income Statements (Detail) - USD ($)
$ in Millions
12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2024
Cash Flow Hedges | Foreign Exchange Contracts      
Derivative Instruments, Gain (Loss) [Line Items]      
Included in effectiveness assessment $ (42) $ 77 $ (14)