v3.25.2
Income Taxes - Schedule of Uncertain Tax Positions (Details) - USD ($)
$ in Millions
12 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2023
Change in accrual for uncertain tax positions, excluding interest and penalties      
Balance, beginning of year $ 26 $ 26 $ 28
Additions for prior year tax positions 26 6 2
Additions for current year tax positions 0 0 2
Reduction for prior year tax positions (2) (6) (6)
Balance, end of year $ 50 $ 26 $ 26