Stock Plan Activity (Parenthetical) (Detail) - shares shares in Millions	12 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2024
Performance Stock Units
Share based Compensation Arrangement by Share based Payment Award [Line Items]
Nonvested stock awards granted	1	1	1

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details