REVENUES - Schedule of Disaggregated Revenue by Type and by Segment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023
Disaggregation of Revenue [Line Items]
Revenues	$ 2,238	$ 2,135	$ 4,334	$ 4,166
Circulation and subscription
Disaggregation of Revenue [Line Items]
Revenues	745	725	1,488	1,449
Advertising
Disaggregation of Revenue [Line Items]
Revenues	385	391	706	723
Consumer
Disaggregation of Revenue [Line Items]
Revenues	572	527	1,093	1,029
Real estate
Disaggregation of Revenue [Line Items]
Revenues	377	327	734	638
Other
Disaggregation of Revenue [Line Items]
Revenues	159	165	313	327
Dow Jones
Disaggregation of Revenue [Line Items]
Revenues	600	584	1,152	1,121
Dow Jones | Circulation and subscription
Disaggregation of Revenue [Line Items]
Revenues	461	441	920	877
Dow Jones | Advertising
Disaggregation of Revenue [Line Items]
Revenues	121	126	206	217
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	18	17	26	27
Digital Real Estate Services
Disaggregation of Revenue [Line Items]
Revenues	473	419	930	822
Digital Real Estate Services | Circulation and subscription
Disaggregation of Revenue [Line Items]
Revenues	2	2	4	5
Digital Real Estate Services | Advertising
Disaggregation of Revenue [Line Items]
Revenues	35	32	73	67
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	377	327	734	638
Digital Real Estate Services | Other
Disaggregation of Revenue [Line Items]
Revenues	59	58	119	112
Book Publishing
Disaggregation of Revenue [Line Items]
Revenues	595	550	1,141	1,075
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	572	527	1,093	1,029
Book Publishing | Real estate
Disaggregation of Revenue [Line Items]
Revenues	0	0	0	0
Book Publishing | Other
Disaggregation of Revenue [Line Items]
Revenues	23	23	48	46
News Media
Disaggregation of Revenue [Line Items]
Revenues	570	582	1,111	1,148
News Media | Circulation and subscription
Disaggregation of Revenue [Line Items]
Revenues	282	282	564	567
News Media | Advertising
Disaggregation of Revenue [Line Items]
Revenues	229	233	427	439
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	59	67	120	142
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