Segment Information - Reconciliation of Depreciation and Amortization, Capital Expenditures from Segments to Consolidated (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Segment Reporting Information [Line Items]
Total Depreciation and amortization	$ 644	$ 659	$ 472
Total Capital expenditures	438	572	364
News Media
Segment Reporting Information [Line Items]
Total Depreciation and amortization	115	120	115
Total Capital expenditures	76	106	101
Subscription Video Services
Segment Reporting Information [Line Items]
Total Depreciation and amortization	283	292	107
Total Capital expenditures	199	307	81
Dow Jones
Segment Reporting Information [Line Items]
Total Depreciation and amortization	113	103	108
Total Capital expenditures	59	66	72
Book Publishing
Segment Reporting Information [Line Items]
Total Depreciation and amortization	33	42	52
Total Capital expenditures	12	7	17
Digital Real Estate Services
Segment Reporting Information [Line Items]
Total Depreciation and amortization	93	97	87
Total Capital expenditures	80	78	78
Other
Segment Reporting Information [Line Items]
Total Depreciation and amortization	7	5	3
Total Capital expenditures	$ 12	$ 8	$ 15