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Employee Purchased Shares (Detail) - $ / shares
shares in Millions
12 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2020
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]      
Shares purchased 7 8 9
Average price per share $ 259.55 $ 207.88 $ 142.22