REVENUES - Schedule of Disaggregated Revenue by Type and by Segment (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2026	Sep. 30, 2025
Disaggregation of Revenue [Line Items]
Revenues	$ 2,281	$ 2,144
Circulation and subscription
Disaggregation of Revenue [Line Items]
Revenues	823	782
Advertising
Disaggregation of Revenue [Line Items]
Revenues	323	317
Consumer
Disaggregation of Revenue [Line Items]
Revenues	556	510
Real estate
Disaggregation of Revenue [Line Items]
Revenues	418	370
Other
Disaggregation of Revenue [Line Items]
Revenues	161	165
Dow Jones
Disaggregation of Revenue [Line Items]
Revenues	630	586
Dow Jones | Circulation and subscription
Disaggregation of Revenue [Line Items]
Revenues	524	491
Dow Jones | Advertising
Disaggregation of Revenue [Line Items]
Revenues	93	85
Dow Jones | Consumer
Disaggregation of Revenue [Line Items]
Revenues	0	0
Dow Jones | Real estate
Disaggregation of Revenue [Line Items]
Revenues	0	0
Dow Jones | Other
Disaggregation of Revenue [Line Items]
Revenues	13	10
Digital Real Estate Services
Disaggregation of Revenue [Line Items]
Revenues	529	479
Digital Real Estate Services | Circulation and subscription
Disaggregation of Revenue [Line Items]
Revenues	2	2
Digital Real Estate Services | Advertising
Disaggregation of Revenue [Line Items]
Revenues	43	41
Digital Real Estate Services | Consumer
Disaggregation of Revenue [Line Items]
Revenues	0	0
Digital Real Estate Services | Real estate
Disaggregation of Revenue [Line Items]
Revenues	418	370
Digital Real Estate Services | Other
Disaggregation of Revenue [Line Items]
Revenues	66	66
Book Publishing
Disaggregation of Revenue [Line Items]
Revenues	582	534
Book Publishing | Circulation and subscription
Disaggregation of Revenue [Line Items]
Revenues	0	0
Book Publishing | Advertising
Disaggregation of Revenue [Line Items]
Revenues	0	0
Book Publishing | Consumer
Disaggregation of Revenue [Line Items]
Revenues	556	510
Book Publishing | Real estate
Disaggregation of Revenue [Line Items]
Revenues	0	0
Book Publishing | Other
Disaggregation of Revenue [Line Items]
Revenues	26	24
News Media
Disaggregation of Revenue [Line Items]
Revenues	540	545
News Media | Circulation and subscription
Disaggregation of Revenue [Line Items]
Revenues	297	289
News Media | Advertising
Disaggregation of Revenue [Line Items]
Revenues	187	191
News Media | Consumer
Disaggregation of Revenue [Line Items]
Revenues	0	0
News Media | Real estate
Disaggregation of Revenue [Line Items]
Revenues	0	0
News Media | Other
Disaggregation of Revenue [Line Items]
Revenues	$ 56	$ 65