Additional Financial Information - Schedule of Components of Other Non-current Assets (Detail) - USD ($) $ in Millions	Dec. 31, 2024	Jun. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Investments	$ 1,517	$ 1,129
Inventories, net	894	712
Operating lease assets	$ 872	$ 904
Operating lease, right-of-use asset, statement of financial position	Total other non-current assets	Total other non-current assets
Grantor Trust	$ 233	$ 247
Other	306	323
Total other non-current assets	3,822	3,315
Investments, fair value	$ 1,130	$ 797