Employee Retirement Plans (Details) - USD ($) $ in Millions	12 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2024
Australia
Defined Benefit Plan Disclosure [Line Items]
Percentage of contribution by the company to the retirement plans	12.00%
Total contribution by the company to the employee retirement plans	$ 18	$ 16	$ 15
Singapore
Defined Benefit Plan Disclosure [Line Items]
Percentage of contribution by the company to the retirement plans	17.00%
Total contribution by the company to the employee retirement plans	$ 5	4	4
United States
Defined Benefit Plan Disclosure [Line Items]
Percentage of contribution by the company to the retirement plans	4.00%
Total contribution by the company to the employee retirement plans	$ 14	$ 13	$ 14

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