SEGMENT INFORMATION - Schedule of Reconciliation of Revenue and Segment EBITDA from Segments to Consolidated (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2026	Mar. 31, 2025
Segment Reporting Information [Line Items]
Revenues	$ 2,185	$ 2,009	$ 6,691	$ 6,343
Operating expenses	(952)	(904)	(2,901)	(2,819)
Selling, general and administrative	(890)	(815)	(2,586)	(2,431)
Total segment EBITDA	343	290	1,204	1,093
Depreciation and amortization	(122)	(114)	(357)	(339)
Impairment and restructuring charges	(18)	(13)	(67)	(51)
Equity losses of affiliates	(1)	0	(5)	(11)
Interest income (expense), net	5	1	20	(2)
Other, net	(18)	(13)	(27)	101
Income before income tax expense from continuing operations	189	151	768	791
Income tax expense from continuing operations	(68)	(44)	(255)	(229)
Net income from continuing operations	121	107	513	562
Net income from discontinued operations, net of tax	0	30	0	2
Net income	121	137	513	564
Dow Jones
Segment Reporting Information [Line Items]
Revenues	619	575	1,853	1,727
Operating expenses	(244)	(234)	(719)	(713)
Selling, general and administrative	(228)	(209)	(652)	(577)
Total segment EBITDA	147	132	482	437
Depreciation and amortization	(41)	(40)	(122)	(117)
Digital Real Estate Services
Segment Reporting Information [Line Items]
Revenues	473	406	1,463	1,336
Operating expenses	(46)	(46)	(147)	(138)
Selling, general and administrative	(272)	(236)	(797)	(749)
Total segment EBITDA	155	124	519	449
Depreciation and amortization	(39)	(35)	(114)	(107)
Book Publishing
Segment Reporting Information [Line Items]
Revenues	555	514	1,722	1,655
Operating expenses	(366)	(349)	(1,152)	(1,104)
Selling, general and administrative	(116)	(101)	(340)	(305)
Total segment EBITDA	73	64	230	246
Depreciation and amortization	(15)	(14)	(44)	(40)
News Media
Segment Reporting Information [Line Items]
Revenues	538	514	1,653	1,625
Operating expenses	(296)	(275)	(883)	(864)
Selling, general and administrative	(227)	(206)	(655)	(636)
Total segment EBITDA	15	33	115	125
Depreciation and amortization	(26)	(24)	(74)	(72)
Other
Segment Reporting Information [Line Items]
Revenues	0	0	0	0
Operating expenses	0	0	0	0
Selling, general and administrative	(47)	(63)	(142)	(164)
Total segment EBITDA	(47)	(63)	(142)	(164)
Depreciation and amortization	$ (1)	$ (1)	$ (3)	$ (3)