SEGMENT INFORMATION - Schedule of Reconciliation of Revenue and Segment EBITDA from Segments to Consolidated (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2026	Sep. 30, 2025
Segment Reporting [Line Items]
Revenues:	$ 2,281	$ 2,144
Operating expenses	(988)	(941)
Selling, general and administrative	(890)	(863)
Segment EBITDA	403	340
Depreciation and amortization	(126)	(117)
Impairment and restructuring charges	(20)	(19)
Equity losses of affiliates	(3)	(2)
Interest income, net	4	6
Other, net	38	4
Income before income tax expense	296	212
Income tax expense	(81)	(62)
Net income	215	150
Dow Jones
Segment Reporting [Line Items]
Revenues:	630	586
Operating expenses	(246)	(238)
Selling, general and administrative	(224)	(204)
Segment EBITDA	160	144
Depreciation and amortization	(43)	(40)
Digital Real Estate Services
Segment Reporting [Line Items]
Revenues:	529	479
Operating expenses	(46)	(53)
Selling, general and administrative	(271)	(268)
Segment EBITDA	212	158
Depreciation and amortization	(44)	(37)
Book Publishing
Segment Reporting [Line Items]
Revenues:	582	534
Operating expenses	(398)	(354)
Selling, general and administrative	(109)	(122)
Segment EBITDA	75	58
Depreciation and amortization	(16)	(15)
News Media
Segment Reporting [Line Items]
Revenues:	540	545
Operating expenses	(298)	(296)
Selling, general and administrative	(224)	(219)
Segment EBITDA	18	30
Depreciation and amortization	(21)	(24)
Other
Segment Reporting [Line Items]
Revenues:	0	0
Operating expenses	0	0
Selling, general and administrative	(62)	(50)
Segment EBITDA	(62)	(50)
Depreciation and amortization	$ (2)	$ (1)