Revenues - Summary of Disaggregated Revenue by Type and by Segment (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Disaggregation of Revenue [Line Items]
Revenues	$ 9,358	$ 9,008	$ 10,074
Circulation and subscription
Disaggregation of Revenue [Line Items]
Revenues	4,206	3,857	4,104
Advertising
Disaggregation of Revenue [Line Items]
Revenues	1,594	2,193	2,738
Consumer
Disaggregation of Revenue [Line Items]
Revenues	1,908	1,593	1,679
Real estate
Disaggregation of Revenue [Line Items]
Revenues	1,153	862	908
Other
Disaggregation of Revenue [Line Items]
Revenues	497	503	645
Digital Real Estate Services
Disaggregation of Revenue [Line Items]
Revenues	1,393	1,065	1,159
Digital Real Estate Services | Circulation and subscription
Disaggregation of Revenue [Line Items]
Revenues	25	36	49
Digital Real Estate Services | Advertising
Disaggregation of Revenue [Line Items]
Revenues	126	98	122
Digital Real Estate Services | Consumer
Disaggregation of Revenue [Line Items]
Revenues	0	0	0
Digital Real Estate Services | Real estate
Disaggregation of Revenue [Line Items]
Revenues	1,153	862	908
Digital Real Estate Services | Other
Disaggregation of Revenue [Line Items]
Revenues	89	69	80
Subscription Video Services
Disaggregation of Revenue [Line Items]
Revenues	2,072	1,884	2,202
Subscription Video Services | Circulation and subscription
Disaggregation of Revenue [Line Items]
Revenues	1,825	1,673	1,926
Subscription Video Services | Advertising
Disaggregation of Revenue [Line Items]
Revenues	210	174	215
Subscription Video Services | Consumer
Disaggregation of Revenue [Line Items]
Revenues	0	0	0
Subscription Video Services | Real estate
Disaggregation of Revenue [Line Items]
Revenues	0	0	0
Subscription Video Services | Other
Disaggregation of Revenue [Line Items]
Revenues	37	37	61
Dow Jones
Disaggregation of Revenue [Line Items]
Revenues	1,702	1,590	1,549
Dow Jones | Circulation and subscription
Disaggregation of Revenue [Line Items]
Revenues	1,296	1,191	1,120
Dow Jones | Advertising
Disaggregation of Revenue [Line Items]
Revenues	373	359	393
Dow Jones | Consumer
Disaggregation of Revenue [Line Items]
Revenues	0	0	0
Dow Jones | Real estate
Disaggregation of Revenue [Line Items]
Revenues	0	0	0
Dow Jones | Other
Disaggregation of Revenue [Line Items]
Revenues	33	40	36
Book Publishing
Disaggregation of Revenue [Line Items]
Revenues	1,985	1,666	1,754
Book Publishing | Circulation and subscription
Disaggregation of Revenue [Line Items]
Revenues	0	0	0
Book Publishing | Advertising
Disaggregation of Revenue [Line Items]
Revenues	0	0	0
Book Publishing | Consumer
Disaggregation of Revenue [Line Items]
Revenues	1,908	1,593	1,679
Book Publishing | Real estate
Disaggregation of Revenue [Line Items]
Revenues	0	0	0
Book Publishing | Other
Disaggregation of Revenue [Line Items]
Revenues	77	73	75
News Media
Disaggregation of Revenue [Line Items]
Revenues	2,205	2,801	3,407
News Media | Circulation and subscription
Disaggregation of Revenue [Line Items]
Revenues	1,060	956	1,008
News Media | Advertising
Disaggregation of Revenue [Line Items]
Revenues	885	1,562	2,007
News Media | Consumer
Disaggregation of Revenue [Line Items]
Revenues	0	0	0
News Media | Real estate
Disaggregation of Revenue [Line Items]
Revenues	0	0	0
News Media | Other
Disaggregation of Revenue [Line Items]
Revenues	260	283	392
Other
Disaggregation of Revenue [Line Items]
Revenues	1	2	3
Other | Circulation and subscription
Disaggregation of Revenue [Line Items]
Revenues	0	1	1
Other | Advertising
Disaggregation of Revenue [Line Items]
Revenues	0	0	1
Other | Consumer
Disaggregation of Revenue [Line Items]
Revenues	0	0	0
Other | Real estate
Disaggregation of Revenue [Line Items]
Revenues	0	0	0
Other | Other
Disaggregation of Revenue [Line Items]
Revenues	$ 1	$ 1	$ 1