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Share-Based Compensation - Additional Information (Details) - USD ($) |  |  | 12 Months Ended
--- | --- | --- | ---
Oct. 11, 2024 | Jun. 03, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2023
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |  |  |
Stock option issued (in shares) |  |  | 0 | 0 | 0
Aggregate intrinsic value of stock options and cash-based stock appreciation rights, outstanding |  |  | $ 50,000,000 | $ 61,000,000 | $ 44,000,000
Aggregate intrinsic value of stock options and cash-based stock appreciation rights, exercisable |  |  | 50,000,000 | 61,000,000 | 44,000,000
Total intrinsic value of stock options and cash-based stock appreciation rights, exercised |  |  | $ 36,000,000 | 25,000,000 | 5,000,000
Employee Stock Purchase Plan |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |  |  |
Common stock authorized for issuance under the plan (in shares) |  |  | 13,450,000 |  |
Shares available to be issued (in shares) |  |  | 8,000,000 |  |
Percentage of employee payroll deductions authorized |  | 15.00% |  |  |
Percentage of fair market value of common stock to purchase shares |  | 85.00% |  |  |
Offering period |  | 6 months |  |  |
Restricted Share Units |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |  |  |
Units granted (in shares) |  | 147,214 | 1,554,412 |  |
Award vesting period |  | 3 years |  |  |
Restricted Share Units | Share-Based Payment Arrangement, Tranche One |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |  |  |
Units granted (in shares) | 15,902 |  |  |  |
Award vesting period | 3 years |  |  |  |
Restricted Share Units | Share-Based Payment Arrangement, Tranche Two |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |  |  |
Units granted (in shares) | 63,154 |  |  |  |
Award vesting period | 2 years |  |  |  |
Performance Stock Units |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |  |  |
Units granted (in shares) | 118,853 | 694,007 | 644,174 |  |
Award vesting period | 3 years | 3 years |  |  |
Share based compensation expense attributable to non-vested shares |  |  | $ 125,000,000 |  |
Unrecognized compensation cost, weighted-average period of recognition, years |  |  | 1 year 8 months 12 days |  |
Total fair value of restricted stock grant |  |  | $ 88,000,000 | 113,000,000 | 27,000,000
Total fair value of restricted stock vested |  |  | $ 17,000,000 | $ 14,000,000 | 24,000,000
Performance Stock Units | Minimum |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |  |  |
Award grants performance period |  |  | 12 months |  |
Performance Stock Units | Maximum |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |  |  |
Award grants performance period |  |  | 36 months |  |
Stock Options and Cash-Based Stock Appreciation Rights |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |  |  |
Share based compensation expense attributable to non-vested shares |  |  | $ 0 |  |
Restricted Share Awards and Cash-Based Restricted Share Unit Awards |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |  |  |
Award vesting period |  |  | 3 years |  |
Share based compensation expense attributable to non-vested shares |  |  | $ 119,000,000 |  |
Shares issued (in shares) |  |  | 0 | 0 |
Unrecognized compensation cost, weighted-average period of recognition, years |  |  | 2 years |  |
Total fair value of restricted stock grant |  |  | $ 127,000,000 | $ 110,000,000 | 102,000,000
Total fair value of restricted stock vested |  |  | $ 185,000,000 | $ 74,000,000 | $ 131,000,000

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