SEGMENT INFORMATION - Schedule of Reconciliation of Depreciation and Amortization, Capital Expenditures from Segments to Consolidated (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2026	Sep. 30, 2025
Segment Reporting [Line Items]
Total Depreciation and amortization	$ 126	$ 117
Total Capital expenditures	102	81
Dow Jones
Segment Reporting [Line Items]
Total Depreciation and amortization	43	40
Total Capital expenditures	38	15
Digital Real Estate Services
Segment Reporting [Line Items]
Total Depreciation and amortization	44	37
Total Capital expenditures	38	38
Book Publishing
Segment Reporting [Line Items]
Total Depreciation and amortization	16	15
Total Capital expenditures	9	8
News Media
Segment Reporting [Line Items]
Total Depreciation and amortization	21	24
Total Capital expenditures	16	18
Other
Segment Reporting [Line Items]
Total Depreciation and amortization	2	1
Total Capital expenditures	$ 1	$ 2