SEGMENT INFORMATION - Schedule of Reconciliation of Goodwill and Intangible Assets from Segments to Consolidated (Details) - USD ($) $ in Millions	Dec. 31, 2025	Jun. 30, 2025
Segment Reporting Information [Line Items]
Total Goodwill and intangible assets, net	$ 6,391	$ 6,303
Dow Jones
Segment Reporting Information [Line Items]
Total Goodwill and intangible assets, net	3,266	3,256
Digital Real Estate Services
Segment Reporting Information [Line Items]
Total Goodwill and intangible assets, net	1,890	1,798
Book Publishing
Segment Reporting Information [Line Items]
Total Goodwill and intangible assets, net	927	941
News Media
Segment Reporting Information [Line Items]
Total Goodwill and intangible assets, net	$ 308	$ 308