REVENUES - Schedule of Disaggregated Revenue by Type and by Segment (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Disaggregation of Revenue [Line Items]
Revenues	$ 2,144	$ 2,096
Circulation and subscription
Disaggregation of Revenue [Line Items]
Revenues	782	743
Advertising
Disaggregation of Revenue [Line Items]
Revenues	317	321
Consumer
Disaggregation of Revenue [Line Items]
Revenues	510	521
Real estate
Disaggregation of Revenue [Line Items]
Revenues	370	357
Other
Disaggregation of Revenue [Line Items]
Revenues	165	154
Dow Jones
Disaggregation of Revenue [Line Items]
Revenues	586	552
Dow Jones | Circulation and subscription
Disaggregation of Revenue [Line Items]
Revenues	491	459
Dow Jones | Advertising
Disaggregation of Revenue [Line Items]
Revenues	85	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	10	8
Digital Real Estate Services
Disaggregation of Revenue [Line Items]
Revenues	479	457
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	41	38
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	370	357
Digital Real Estate Services | Other
Disaggregation of Revenue [Line Items]
Revenues	66	60
Book Publishing
Disaggregation of Revenue [Line Items]
Revenues	534	546
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	510	521
Book Publishing | Real estate
Disaggregation of Revenue [Line Items]
Revenues	0	0
Book Publishing | Other
Disaggregation of Revenue [Line Items]
Revenues	24	25
News Media
Disaggregation of Revenue [Line Items]
Revenues	545	541
News Media | Circulation and subscription
Disaggregation of Revenue [Line Items]
Revenues	289	282
News Media | Advertising
Disaggregation of Revenue [Line Items]
Revenues	191	198
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	65	61
Other
Disaggregation of Revenue [Line Items]
Revenues	0	0
Other | Circulation and subscription
Disaggregation of Revenue [Line Items]
Revenues	0	0
Other | Advertising
Disaggregation of Revenue [Line Items]
Revenues	0	0
Other | Consumer
Disaggregation of Revenue [Line Items]
Revenues	0	0
Other | Real estate
Disaggregation of Revenue [Line Items]
Revenues	0	0
Other | Other
Disaggregation of Revenue [Line Items]
Revenues	$ 0	$ 0