Defined Benefit Plans - Changes in Benefit Obligations (Details) - USD ($) $ in Millions |
3 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Dec. 31, 2024 |
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2024 |
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| Change in benefit obligation: | ||||
| Benefit obligation at the beginning of the year | $ 1,988 | $ 1,227 | ||
| Service cost | 26 | 19 | $ 18 | |
| Interest cost | 88 | 58 | 50 | |
| Participant contributions | 7 | 6 | ||
| Actuarial (gain)/loss | 16 | (31) | ||
| Settlements | $ (27) | (263) | (157) | |
| Benefits paid | (107) | (77) | ||
| Administrative expenses | (9) | (5) | ||
| Acquisitions and divestitures | 3 | 860 | ||
| Other | (3) | 0 | ||
| Foreign currency translation | (37) | 88 | ||
| Benefit obligation at the end of the year | 1,709 | 1,988 | $ 1,227 | |
| Accumulated benefit obligation at the end of the year | $ 1,671 | $ 1,942 | ||
| Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Interest Cost, Statement of Income or Comprehensive Income [Extensible Enumeration] | Interest Expense, Operating and Nonoperating | |||
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- Definition Defined Benefit Plan, Benefit Obligation, Acquisitions And Divestiture No definition available.
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- Definition Defined Benefit Plan, Benefit Obligation, Administration Expense No definition available.
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- Definition Amount of actuarial present value of benefits attributed to employee service rendered, excluding assumptions about future compensation level. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of gain (loss) from change in actuarial assumptions which (increases) decreases benefit obligation of defined benefit plan. Assumptions include, but are not limited to, interest, mortality, employee turnover, salary, and temporary deviation from substantive plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of payment to participant of defined benefit plan which decreases benefit obligation. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of contributions received by defined benefit plan from participant which increase benefit obligation. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of (increase) decrease to benefit obligation of defined benefit plan from remeasurement due to settlement. Excludes decrease to benefit obligation for settlement payment. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Amount of foreign currency translation gain (loss) which (increases) decreases benefit obligation of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of cost recognized for passage of time related to defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Indicates line item in statement of income or comprehensive income that includes interest cost component of net periodic benefit cost (credit) for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of increase (decrease) in benefit obligation of defined benefit plan from change, classified as other. No definition available.
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- Definition Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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