Defined Benefit Plans - Components of Other Comprehensive Income (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2024 |
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| Retirement Benefits [Abstract] | |||
| Net actuarial loss occurring during the year | $ 16 | $ 12 | $ 57 |
| Net prior service loss occurring during the year | 0 | 1 | 1 |
| Amortization of actuarial loss | (3) | (7) | (3) |
| Gain recognized due to settlement/curtailment | (13) | (12) | (2) |
| Amortization of prior service credit | 2 | 3 | 4 |
| Acquisition related loss | 1 | 0 | 0 |
| Tax effect | (2) | 1 | (12) |
| Total recognized in other comprehensive (income)/loss | $ 1 | $ (2) | $ 45 |
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- Definition Other Comprehensive (Income) Loss, Defined Benefit Plan, Amortization of Actuarial Gain (Loss), after Reclassification Adjustment, before Tax No definition available.
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- Definition Other Comprehensive (Income) Loss, Defined Benefit Plan, Amortization of Prior Service Cost, after Reclassification Adjustment, before Tax No definition available.
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- Definition Other Comprehensive (Income) Loss, Defined Benefit Plan, Loss (Gain) Due to Settlement or Curtailment, after Reclassification Adjustment, before Tax No definition available.
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- Definition Other Comprehensive (Income) Loss, Defined Benefit Plan, Loss On Acquisition/Disposal, after Reclassification Adjustment, before Tax No definition available.
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- References No definition available.
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- Definition Amount of gain (loss), recognized immediately as component of net periodic benefit (cost) credit, for change in value of benefit obligation or plan assets from experience different from that assumed, change in actuarial assumption, or consequence of temporarily deviating from substantive plan. Includes, but is not limited to, amount in excess of 10 percent of greater of fair value of plan assets or benefit obligation. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, before tax, after reclassification adjustment, of (increase) decrease in accumulated other comprehensive income from prior service cost (credit) of defined benefit plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, after tax and reclassification adjustment, of (increase) decrease in accumulated other comprehensive income for defined benefit plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, after reclassification adjustment, of tax (expense) benefit for (increase) decrease in accumulated other comprehensive income of defined benefit plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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