Segment Information - Reconciliation of Revenue and Segment EBITDA from Segments to Consolidated (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Segment Reporting Information [Line Items]
Revenues	$ 9,358	$ 9,008	$ 10,074
Depreciation and amortization	(680)	(644)	(659)
Impairment and restructuring charges	(168)	(1,830)	(188)
Equity losses of affiliates	(65)	(47)	(17)
Interest expense, net	(53)	(25)	(59)
Other, net	143	9	33
Income (loss) before income tax expense	450	(1,524)	354
Income tax expense	(61)	(21)	(126)
Net income (loss)	389	(1,545)	228
Digital Real Estate Services
Segment Reporting Information [Line Items]
Revenues	1,393	1,065	1,159
Total Segment EBITDA	514	345	378
Depreciation and amortization	(101)	(93)	(97)
Subscription Video Services
Segment Reporting Information [Line Items]
Revenues	2,072	1,884	2,202
Total Segment EBITDA	359	323	379
Depreciation and amortization	(332)	(283)	(292)
Dow Jones
Segment Reporting Information [Line Items]
Revenues	1,702	1,590	1,549
Total Segment EBITDA	332	236	208
Depreciation and amortization	(119)	(113)	(103)
Book Publishing
Segment Reporting Information [Line Items]
Revenues	1,985	1,666	1,754
Total Segment EBITDA	303	214	252
Depreciation and amortization	(36)	(33)	(42)
News Media
Segment Reporting Information [Line Items]
Revenues	2,205	2,801	3,407
Total Segment EBITDA	52	53	182
Depreciation and amortization	(84)	(115)	(120)
Other
Segment Reporting Information [Line Items]
Revenues	1	2	3
Total Segment EBITDA	(287)	(158)	(155)
Depreciation and amortization	$ (8)	$ (7)	$ (5)