ADDITIONAL FINANCIAL INFORMATION - Components of Other Non-Current Assets (Details) - USD ($) $ in Millions	Jun. 30, 2026	Jun. 30, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Royalty advances to authors	$ 386	$ 377
Non-current receivables	368	320
Retirement benefit assets	169	165
News America Marketing deferred consideration	212	0
Other	143	138
Total Other non-current assets	$ 1,278	$ 1,000