Revenues - Summary of Disaggregated Revenue by Type and by Segment (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Revenues	$ 2,717	$ 2,414	$ 5,219	$ 4,531
Circulation and subscription
Disaggregation of Revenue [Line Items]
Revenues	1,072	1,030	2,149	2,032
Advertising
Disaggregation of Revenue [Line Items]
Revenues	519	448	924	780
Consumer
Disaggregation of Revenue [Line Items]
Revenues	594	523	1,118	964
Real estate
Disaggregation of Revenue [Line Items]
Revenues	352	281	672	516
Other
Disaggregation of Revenue [Line Items]
Revenues	180	132	356	239
Digital Real Estate Services
Disaggregation of Revenue [Line Items]
Revenues	456	339	882	629
Digital Real Estate Services | Circulation and subscription
Disaggregation of Revenue [Line Items]
Revenues	3	8	6	16
Digital Real Estate Services | Advertising
Disaggregation of Revenue [Line Items]
Revenues	33	30	66	58
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	352	281	672	516
Digital Real Estate Services | Other
Disaggregation of Revenue [Line Items]
Revenues	68	20	138	39
Subscription Video Services
Disaggregation of Revenue [Line Items]
Revenues	498	511	1,008	1,007
Subscription Video Services | Circulation and subscription
Disaggregation of Revenue [Line Items]
Revenues	433	446	873	883
Subscription Video Services | Advertising
Disaggregation of Revenue [Line Items]
Revenues	55	55	114	105
Subscription Video Services | Consumer
Disaggregation of Revenue [Line Items]
Revenues	0	0	0	0
Subscription Video Services | Real estate
Disaggregation of Revenue [Line Items]
Revenues	0	0	0	0
Subscription Video Services | Other
Disaggregation of Revenue [Line Items]
Revenues	10	10	21	19
Dow Jones
Disaggregation of Revenue [Line Items]
Revenues	508	446	952	832
Dow Jones | Circulation and subscription
Disaggregation of Revenue [Line Items]
Revenues	356	319	705	630
Dow Jones | Advertising
Disaggregation of Revenue [Line Items]
Revenues	141	115	231	185
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	12	16	17
Book Publishing
Disaggregation of Revenue [Line Items]
Revenues	617	544	1,163	1,002
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	594	523	1,118	964
Book Publishing | Real estate
Disaggregation of Revenue [Line Items]
Revenues	0	0	0	0
Book Publishing | Other
Disaggregation of Revenue [Line Items]
Revenues	23	21	45	38
News Media
Disaggregation of Revenue [Line Items]
Revenues	638	573	1,214	1,060
News Media | Circulation and subscription
Disaggregation of Revenue [Line Items]
Revenues	280	257	565	503
News Media | Advertising
Disaggregation of Revenue [Line Items]
Revenues	290	248	513	432
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	68	68	136	125
Other
Disaggregation of Revenue [Line Items]
Revenues	0	1	0	1
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	$ 1	$ 0	$ 1