RETIREMENT BENEFIT OBLIGATIONS - Schedule of Amounts Recognized in Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
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| Defined Benefit Plan Disclosure [Line Items] | ||
| Actuarial losses (gains) | $ 443 | $ 423 |
| Prior service cost (benefit) | (13) | (17) |
| Net amounts recognized | 430 | 406 |
| Postretirement Benefits | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actuarial losses (gains) | (6) | (8) |
| Prior service cost (benefit) | (20) | (24) |
| Net amounts recognized | (26) | (32) |
| Domestic Pension Benefits | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actuarial losses (gains) | 118 | 116 |
| Prior service cost (benefit) | 0 | 0 |
| Net amounts recognized | 118 | 116 |
| Foreign Pension Benefits | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actuarial losses (gains) | 331 | 315 |
| Prior service cost (benefit) | 7 | 7 |
| Net amounts recognized | $ 338 | $ 322 |
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- Definition Amount, before tax, after reclassification adjustment, of increase (decrease) in accumulated other comprehensive income from gain (loss) of defined benefit plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- 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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- Definition Amount, before tax, of cost (credit) of benefit change attributable to participants' prior service from plan amendment or plan initiation of defined benefit plan, that has not been recognized in net periodic benefit cost (credit). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, before tax, of gain (loss) for (increase) decrease in value of benefit obligation for change in actuarial assumptions and increase (decrease) in value of plan assets from experience different from that assumed of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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