SEGMENT INFORMATION - Schedule of Reconciliation of Assets from Segments to Consolidated (Details) - USD ($) $ in Millions	Dec. 31, 2024	Jun. 30, 2024
Segment Reporting, Asset Reconciling Item [Line Items]
Investments	$ 365	$ 429
Assets held for sale	2,196	2,573
Total assets	16,161	16,684
Dow Jones
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	4,140	4,139
Digital Real Estate Services
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	2,979	3,020
Book Publishing
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	2,828	2,647
News Media
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	1,956	2,018
Other
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 1,697	$ 1,858