SEGMENT INFORMATION - Schedule of Reconciliation of Revenue and Segment EBITDA from Segments to Consolidated (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2025	Dec. 31, 2024
Segment Reporting Information [Line Items]
Revenues	$ 2,362	$ 2,238	$ 4,506	$ 4,334
Operating expenses	(1,008)	(963)	(1,949)	(1,915)
Selling, general and administrative	(833)	(797)	(1,696)	(1,616)
Total segment EBITDA	521	478	861	803
Depreciation and amortization	(118)	(113)	(235)	(225)
Impairment and restructuring charges	(30)	(16)	(49)	(38)
Equity losses of affiliates	(2)	(8)	(4)	(11)
Interest income (expense), net	9	(3)	15	(3)
Other, net	(13)	92	(9)	114
Income before income tax expense from continuing operations	367	430	579	640
Income tax expense from continuing operations	(125)	(124)	(187)	(185)
Net income from continuing operations	242	306	392	455
Net loss from discontinued operations, net of tax	0	(23)	0	(28)
Net income	242	283	392	427
Dow Jones
Segment Reporting Information [Line Items]
Revenues	648	600	1,234	1,152
Operating expenses	(237)	(240)	(475)	(479)
Selling, general and administrative	(220)	(186)	(424)	(368)
Total segment EBITDA	191	174	335	305
Depreciation and amortization	(41)	(38)	(81)	(77)
Digital Real Estate Services
Segment Reporting Information [Line Items]
Revenues	511	473	990	930
Operating expenses	(48)	(45)	(101)	(92)
Selling, general and administrative	(257)	(243)	(525)	(513)
Total segment EBITDA	206	185	364	325
Depreciation and amortization	(38)	(36)	(75)	(72)
Book Publishing
Segment Reporting Information [Line Items]
Revenues	633	595	1,167	1,141
Operating expenses	(432)	(390)	(786)	(755)
Selling, general and administrative	(102)	(104)	(224)	(204)
Total segment EBITDA	99	101	157	182
Depreciation and amortization	(14)	(13)	(29)	(26)
News Media
Segment Reporting Information [Line Items]
Revenues	570	570	1,115	1,111
Operating expenses	(291)	(288)	(587)	(589)
Selling, general and administrative	(209)	(208)	(428)	(430)
Total segment EBITDA	70	74	100	92
Depreciation and amortization	(24)	(25)	(48)	(48)
Other
Segment Reporting Information [Line Items]
Revenues	0	0	0	0
Operating expenses	0	0	0	0
Selling, general and administrative	(45)	(56)	(95)	(101)
Total segment EBITDA	(45)	(56)	(95)	(101)
Depreciation and amortization	$ (1)	$ (1)	$ (2)	$ (2)