Additional Financial Information - Schedule of Components of Other Non-current Assets (Details) - USD ($) $ in Millions	Dec. 31, 2025	Jun. 30, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Investments	$ 1,489	$ 1,621
Inventories, net	923	742
Operating lease assets	$ 837	$ 814
Operating lease, right-of-use asset, statement of financial position	Total other non-current assets	Total other non-current assets
Grantor Trust assets	$ 236	$ 246
Other	311	309
Total other non-current assets	3,796	3,732
Investments, fair value	$ 955	$ 1,249

The amount of cash, securities, or other assets held by a third-party trustee pursuant to the terms of an agreement which assets are available to be used by beneficiaries to that agreement only within the specific terms thereof and which agreement is expected to terminate more than one year from the balance sheet date (or operating cycle, if longer) at which time the assets held-in-trust will be released or forfeited.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as noncurrent.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 825
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- Definition

Inventories not expected to be converted to cash, sold or exchanged within the normal operating cycle.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
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The total amount of investments that are intended to be held for an extended period of time (longer than one operating cycle).

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
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Amount of lessee's right to use underlying asset under operating lease.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
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Indicates line item in statement of financial position that includes operating lease right-of-use asset.

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Amount of other miscellaneous assets expected to be realized or consumed after one year or normal operating cycle, if longer.

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Amount of noncurrent assets classified as other.

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