Significant Accounting Policies - Schedule of Long-lived Asset Impairment (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Long-Lived Asset, Held and Used, Impairment [Line Items] | |||
| Impairment of long-lived assets to be disposed of | $ 59 | $ 8 | $ 12 |
| Location, Statement of Income, Balance [Axis]: us-gaap:OtherOperatingIncomeExpenseNet | |||
| Long-Lived Asset, Held and Used, Impairment [Line Items] | |||
| Impairment of long-lived assets to be disposed of | 6 | 0 | 0 |
| Location, Statement of Income, Balance [Axis]: us-gaap:RestructuringCostsAndAssetImpairmentCharges | |||
| Long-Lived Asset, Held and Used, Impairment [Line Items] | |||
| Impairment of long-lived assets to be disposed of | $ 53 | $ 8 | $ 12 |