Pension and Other Postretirement Benefits - Schedule of Amounts Recognized in Balance Sheets (Details) - USD ($) $ in Millions |
Jun. 30, 2025 |
Jun. 30, 2024 |
|---|---|---|
| Defined Benefit Plan Disclosure [Line Items] | ||
| Net amounts recognized | $ 295 | |
| Pension benefits | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Pension assets | 10 | $ 36 |
| Accrued pension liabilities | (261) | (264) |
| Net amounts recognized | (251) | (228) |
| Postretirement benefits | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Pension assets | 0 | 0 |
| Accrued pension liabilities | (44) | (45) |
| Net amounts recognized | $ (44) | $ (45) |
| X | ||||||||||
- Definition Amount of asset (liability), recognized in statement of financial position, for defined benefit pension and other postretirement plans. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition 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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of plan asset for defined benefit pension plan with projected benefit obligation in excess of plan assets. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Details
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- Details
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