SEGMENT INFORMATION - Schedule of Reconciliation of Goodwill and Intangible Assets from Segments to Consolidated (Details) - USD ($) $ in Millions	Sep. 30, 2026	Jun. 30, 2026
Segment Reporting [Line Items]
Total Goodwill and intangible assets, net	$ 6,373	$ 6,379
Dow Jones
Segment Reporting [Line Items]
Total Goodwill and intangible assets, net	3,232	3,244
Digital Real Estate Services
Segment Reporting [Line Items]
Total Goodwill and intangible assets, net	1,943	1,931
Book Publishing
Segment Reporting [Line Items]
Total Goodwill and intangible assets, net	900	907
News Media
Segment Reporting [Line Items]
Total Goodwill and intangible assets, net	$ 298	$ 297