Revenues - Summary of Cumulative Effect and Impact of Adoption ASC 606 and ASC 605 (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018	Jul. 01, 2018	Jun. 30, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total Revenues	$ 2,457	$ 2,093	$ 7,608	$ 6,331
Operating expenses and Selling, general and administrative	(2,210)		(6,633)
Net income	23	(1,110)	270	(1,089)
Receivables, net	1,631		1,631		$ 1,812	$ 1,612
Other current assets	564		564		368	372
Deferred income tax assets	257		257		281	279
Other non-current assets	913		913		923	831
Deferred revenue	460		460		510	516
Other current liabilities	745		745		566	372
Deferred income tax liabilities	321		321		400	389
Other non-current liabilities	495		495		501	430
Accumulated deficit	(1,927)		(1,927)		(2,143)	$ (2,163)
Circulation and Subscription [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total Revenues	1,025	659	3,088	1,947
Advertising [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total Revenues	670	702	2,052	2,101
Consumer [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total Revenues	403	381	1,281	1,220
Real Estate [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total Revenues	218	208	693	633
Other [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total Revenues	141	$ 143	494	$ 430
ASC 605 [Member] | Accounting Standards Update 2014-09 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total Revenues	2,474		7,662
Operating expenses and Selling, general and administrative	(2,228)		(6,706)
Net income	22		256
Receivables, net					1,612
Other current assets					372
Deferred income tax assets					279
Other non-current assets					831
Deferred revenue					516
Other current liabilities					372
Deferred income tax liabilities					389
Other non-current liabilities					430
Accumulated deficit					(2,163)
ASC 605 [Member] | Accounting Standards Update 2014-09 [Member] | Circulation and Subscription [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total Revenues	1,019		3,076
ASC 605 [Member] | Accounting Standards Update 2014-09 [Member] | Advertising [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total Revenues	673		2,055
ASC 605 [Member] | Accounting Standards Update 2014-09 [Member] | Consumer [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total Revenues	420		1,328
ASC 605 [Member] | Accounting Standards Update 2014-09 [Member] | Real Estate [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total Revenues	218		693
ASC 605 [Member] | Accounting Standards Update 2014-09 [Member] | Other [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total Revenues	144		510
ASC 606 [Member] | Accounting Standards Update 2014-09 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total Revenues	(17)		(54)
Operating expenses and Selling, general and administrative	18		73
Net income	1		14
Receivables, net					200
Other current assets					(4)
Deferred income tax assets					2
Other non-current assets					92
Deferred revenue					(6)
Other current liabilities					194
Deferred income tax liabilities					11
Other non-current liabilities					71
Accumulated deficit					$ 20
ASC 606 [Member] | Accounting Standards Update 2014-09 [Member] | Circulation and Subscription [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total Revenues	6		12
ASC 606 [Member] | Accounting Standards Update 2014-09 [Member] | Advertising [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total Revenues	(3)		(3)
ASC 606 [Member] | Accounting Standards Update 2014-09 [Member] | Consumer [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total Revenues	(17)		(47)
ASC 606 [Member] | Accounting Standards Update 2014-09 [Member] | Real Estate [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total Revenues	0		0
ASC 606 [Member] | Accounting Standards Update 2014-09 [Member] | Other [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total Revenues	$ (3)		$ (16)