Fair Value - Schedule of Financial Assets and Liabilities Carried at Fair Value on a Recurring Basis (Details) - USD ($) $ in Millions |
Mar. 31, 2026 |
Jun. 30, 2025 |
|---|---|---|
| Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ||
| Investments in equity securities | $ 458 | $ 1,249 |
| Redeemable noncontrolling interests | (60) | (261) |
| Total | 398 | 988 |
| Level 1 | ||
| Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ||
| Investments in equity securities | 458 | 1,249 |
| Redeemable noncontrolling interests | 0 | 0 |
| Total | 458 | 1,249 |
| Level 2 | ||
| Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ||
| Investments in equity securities | 0 | 0 |
| Redeemable noncontrolling interests | 0 | 0 |
| Total | 0 | 0 |
| Level 3 | ||
| Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | ||
| Investments in equity securities | 0 | 0 |
| Redeemable noncontrolling interests | (60) | (261) |
| Total | $ (60) | $ (261) |