Additional Financial Information - Schedule of Components of Other Non-current Assets (Details) - USD ($) $ in Millions	Jun. 30, 2024	Jun. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Investments	$ 1,129	$ 1,034
Operating lease assets	$ 904	$ 947
Operating lease, right-of-use asset, statement of financial position	Total other non-current assets	Total other non-current assets
Inventories, net	$ 712	$ 642
Grantor Trust assets - long-term	247	276
Other	323	269
Total other non-current assets	3,315	3,168
Investments, fair value	$ 797	$ 884