Additional Financial Information - Schedule of Other Liabilities (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Jun. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Non-current operating lease liabilities	$ 896	$ 925
Accrued non-current pension/postretirement liabilities	293	361
Other non-current liabilities	187	198
Total other liabilities	$ 1,376	$ 1,484

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

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

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