Additional Financial Information - Schedule of Components of Other, Net (Details) - USD ($) $ in Millions	12 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Net (losses) gains on investments in equity securities	$ (761)	$ 449	$ (189)
Gain on sale of assets	0	0	166
Other	(12)	(11)	(24)
Total non-operating other, net	$ (773)	$ 438	$ (47)

Nonoperating Other Income (Expense)

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- Definition

Amount of gain (loss) from deconsolidation of subsidiary and derecognition of group of assets constituting transfer of business or nonprofit activity, excluding conveyance of oil and gas mineral rights and transfer of good or service in contract with customer.

+ References

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-Name Accounting Standards Codification
-Topic 810
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-Topic 220
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- Definition

Amount of unrealized and realized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
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-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04(3)(d))
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-Name Accounting Standards Codification
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-Publisher FASB
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- References

No definition available.

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- Definition

Amount of income (expense) related to nonoperating activities, classified as other.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
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