Revenues - Summary of Cumulative Effect and Impact of Adoption ASC 606 and ASC 605 (Detail) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Jul. 01, 2018	Jun. 30, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total Revenues	$ 2,524	$ 2,058
Operating expenses and Selling, general and administrative	(2,166)
Net income	101	68
Assets:
Receivables, net	1,648		$ 1,812	$ 1,612
Other current assets	547		368	372
Deferred income tax assets	260		281	279
Other non-current assets	897		923	831
Liabilities and Equity:
Deferred revenue	436		510	516
Other current liabilities	643		566	372
Deferred income tax liabilities	401		400	389
Other non-current liabilities	485		501	430
Accumulated deficit	(2,032)		(2,143)	$ (2,163)
Circulation and Subscription [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total Revenues	1,034	651
Advertising [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total Revenues	664	682
Consumer [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total Revenues	400	386
Real Estate [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total Revenues	227	$ 203
Other [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total Revenues	199
ASC 605 [Member] | Accounting Standards Update 2014-09 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total Revenues	2,541
Operating expenses and Selling, general and administrative	(2,190)
Net income	123
Assets:
Receivables, net			1,612
Other current assets			372
Deferred income tax assets			279
Other non-current assets			831
Liabilities and Equity:
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	1,032
ASC 605 [Member] | Accounting Standards Update 2014-09 [Member] | Advertising [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total Revenues	664
ASC 605 [Member] | Accounting Standards Update 2014-09 [Member] | Consumer [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total Revenues	412
ASC 605 [Member] | Accounting Standards Update 2014-09 [Member] | Real Estate [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total Revenues	227
ASC 605 [Member] | Accounting Standards Update 2014-09 [Member] | Other [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total Revenues	206
ASC 606 [Member] | Accounting Standards Update 2014-09 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total Revenues	(17)
Operating expenses and Selling, general and administrative	24
Net income	5
Assets:
Receivables, net			200
Other current assets			(4)
Deferred income tax assets			2
Other non-current assets			92
Liabilities and Equity:
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	2
ASC 606 [Member] | Accounting Standards Update 2014-09 [Member] | Advertising [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total Revenues	0
ASC 606 [Member] | Accounting Standards Update 2014-09 [Member] | Consumer [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total Revenues	(12)
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
ASC 606 [Member] | Accounting Standards Update 2014-09 [Member] | Other [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total Revenues	$ (7)