Goodwill and Other Intangible Assets - Schedule of Changes in Carrying Value of Goodwill, by Segment (Detail) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
Mar. 31, 2018	Jun. 30, 2020	Jun. 30, 2019
Goodwill [Roll Forward]
Goodwill, beginning balance		$ 5,147	$ 5,218
Acquisitions		12	154
Impairments	$ (41)	(1,098)	(49)
Dispositions		(2)	(16)
Foreign currency movements		(108)	(160)
Goodwill, Ending Balance		3,951	5,147
Digital Real Estate Services
Goodwill [Roll Forward]
Goodwill, beginning balance		1,350	1,261
Acquisitions		0	125
Impairments		0	0
Dispositions		(2)	0
Foreign currency movements		(15)	(36)
Goodwill, Ending Balance		1,333	1,350
Subscription Video Services
Goodwill [Roll Forward]
Goodwill, beginning balance		1,844	1,960
Acquisitions		0	0
Impairments		(882)	0
Dispositions		0	0
Foreign currency movements		(77)	(116)
Goodwill, Ending Balance		885	1,844
Dow Jones
Goodwill [Roll Forward]
Goodwill, beginning balance		1,368	1,368
Acquisitions		0	0
Impairments		0	0
Dispositions		0	0
Foreign currency movements		0	0
Goodwill, Ending Balance		1,368	1,368
Book Publishing
Goodwill [Roll Forward]
Goodwill, beginning balance		266	267
Acquisitions		10	0
Impairments		0	0
Dispositions		0	0
Foreign currency movements		(12)	(1)
Goodwill, Ending Balance		264	266
News Media
Goodwill [Roll Forward]
Goodwill, beginning balance		319	362
Acquisitions		2	29
Impairments		(216)	(49)
Dispositions		0	(16)
Foreign currency movements		(4)	(7)
Goodwill, Ending Balance		$ 101	$ 319

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

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