SEGMENT INFORMATION - Reconciliation of Depreciation and Amortization, Capital Expenditures from Segments to Consolidated (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2023
Segment Reporting Information [Line Items]
Total Depreciation and amortization	$ 459	$ 440	$ 415
Total Capital expenditures	407	357	347
Dow Jones
Segment Reporting Information [Line Items]
Total Depreciation and amortization	156	153	152
Total Capital expenditures	130	100	91
Digital Real Estate Services
Segment Reporting Information [Line Items]
Total Depreciation and amortization	146	137	123
Total Capital expenditures	154	131	130
Book Publishing
Segment Reporting Information [Line Items]
Total Depreciation and amortization	54	54	49
Total Capital expenditures	17	32	42
News Media
Segment Reporting Information [Line Items]
Total Depreciation and amortization	99	91	84
Total Capital expenditures	103	93	83
Other
Segment Reporting Information [Line Items]
Total Depreciation and amortization	4	5	7
Total Capital expenditures	$ 3	$ 1	$ 1