REVENUES - Schedule of Disaggregated Revenue by Type and by Segment (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2025	Mar. 31, 2024
Disaggregation of Revenue [Line Items]
Revenues	$ 2,009	$ 1,994	$ 6,343	$ 6,160
Circulation and subscription
Disaggregation of Revenue [Line Items]
Revenues	755	734	2,243	2,183
Advertising
Disaggregation of Revenue [Line Items]
Revenues	308	323	1,014	1,046
Consumer
Disaggregation of Revenue [Line Items]
Revenues	492	484	1,585	1,513
Real estate
Disaggregation of Revenue [Line Items]
Revenues	318	301	1,052	939
Other
Disaggregation of Revenue [Line Items]
Revenues	136	152	449	479
Dow Jones
Disaggregation of Revenue [Line Items]
Revenues	575	544	1,727	1,665
Dow Jones | Circulation and subscription
Disaggregation of Revenue [Line Items]
Revenues	478	445	1,398	1,322
Dow Jones | Advertising
Disaggregation of Revenue [Line Items]
Revenues	86	86	292	303
Dow Jones | Consumer
Disaggregation of Revenue [Line Items]
Revenues	0	0	0	0
Dow Jones | Real estate
Disaggregation of Revenue [Line Items]
Revenues	0	0	0	0
Dow Jones | Other
Disaggregation of Revenue [Line Items]
Revenues	11	13	37	40
Digital Real Estate Services
Disaggregation of Revenue [Line Items]
Revenues	406	388	1,336	1,210
Digital Real Estate Services | Circulation and subscription
Disaggregation of Revenue [Line Items]
Revenues	1	3	5	8
Digital Real Estate Services | Advertising
Disaggregation of Revenue [Line Items]
Revenues	36	32	109	99
Digital Real Estate Services | Consumer
Disaggregation of Revenue [Line Items]
Revenues	0	0	0	0
Digital Real Estate Services | Real estate
Disaggregation of Revenue [Line Items]
Revenues	318	301	1,052	939
Digital Real Estate Services | Other
Disaggregation of Revenue [Line Items]
Revenues	51	52	170	164
Book Publishing
Disaggregation of Revenue [Line Items]
Revenues	514	506	1,655	1,581
Book Publishing | Circulation and subscription
Disaggregation of Revenue [Line Items]
Revenues	0	0	0	0
Book Publishing | Advertising
Disaggregation of Revenue [Line Items]
Revenues	0	0	0	0
Book Publishing | Consumer
Disaggregation of Revenue [Line Items]
Revenues	492	484	1,585	1,513
Book Publishing | Real estate
Disaggregation of Revenue [Line Items]
Revenues	0	0	0	0
Book Publishing | Other
Disaggregation of Revenue [Line Items]
Revenues	22	22	70	68
News Media
Disaggregation of Revenue [Line Items]
Revenues	514	556	1,625	1,704
News Media | Circulation and subscription
Disaggregation of Revenue [Line Items]
Revenues	276	286	840	853
News Media | Advertising
Disaggregation of Revenue [Line Items]
Revenues	186	205	613	644
News Media | Consumer
Disaggregation of Revenue [Line Items]
Revenues	0	0	0	0
News Media | Real estate
Disaggregation of Revenue [Line Items]
Revenues	0	0	0	0
News Media | Other
Disaggregation of Revenue [Line Items]
Revenues	52	65	172	207
Other
Disaggregation of Revenue [Line Items]
Revenues	0	0	0	0
Other | Circulation and subscription
Disaggregation of Revenue [Line Items]
Revenues	0	0	0	0
Other | Advertising
Disaggregation of Revenue [Line Items]
Revenues	0	0	0	0
Other | Consumer
Disaggregation of Revenue [Line Items]
Revenues	0	0	0	0
Other | Real estate
Disaggregation of Revenue [Line Items]
Revenues	0	0	0	0
Other | Other
Disaggregation of Revenue [Line Items]
Revenues	$ 0	$ 0	$ 0	$ 0