Additional Financial Information - Schedule of Other Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2025	Jun. 30, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Non-current operating lease liabilities	$ 849	$ 822
Accrued non-current pension/postretirement liabilities	264	276
Other non-current liabilities	216	243
Total other liabilities	$ 1,329	$ 1,341

Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.

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-Topic 842
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Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer.

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Obligations not otherwise itemized or categorized in the footnotes to the financial statements that are expected to be paid after one year (or the normal operating cycle, if longer), from the balance sheet date.

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Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans, classified as noncurrent.

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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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