Acquisitions, Disposals and Other Transactions - Additional Information (Detail) £ / shares in Units, $ / shares in Units, £ in Millions, AUD in Millions, $ in Millions						1 Months Ended								3 Months Ended	12 Months Ended
		Jun. 30, 2016 USD ($)	Jun. 30, 2016 GBP (£) £ / shares	Sep. 30, 2015 USD ($)	Sep. 30, 2015 GBP (£)	May 31, 2016 USD ($)	Feb. 29, 2016 USD ($) Tranche	Feb. 29, 2016 AUD Tranche	Jul. 31, 2015 USD ($)	Nov. 30, 2014 USD ($) $ / shares	Aug. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Sep. 30, 2013 State Product	Sep. 30, 2015 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)		Jun. 30, 2014 USD ($)	Jan. 31, 2016	Sep. 30, 2015 GBP (£)
Schedule Of Business Acquisitions And Divestitures [Line Items]
Business acquisition purchase price allocation, goodwill amount															$ 656	$ 761
Business acquisition recognized gain resulting from remeasurement of previously held equity interest	[1]														29	0		$ 0
Restricted cash		$ 315													315	0
Deferred tax assets gross		1,952													1,952	1,929
Valuation allowances		1,014													1,014	1,308
Net deferred tax asset		431													431	$ 115	[2]
REA Group [Member]
Schedule Of Business Acquisitions And Divestitures [Line Items]
Interest acquired										20.00%
LMG [Member]
Schedule Of Business Acquisitions And Divestitures [Line Items]
States of operation | State													7
LMG [Member] | Daily Newspapers [Member]
Schedule Of Business Acquisitions And Divestitures [Line Items]
Number of products | Product													8
LMG [Member] | Weekly Newspapers [Member]
Schedule Of Business Acquisitions And Divestitures [Line Items]
Number of products | Product													15
Unruly Holdings Limited [Member]
Schedule Of Business Acquisitions And Divestitures [Line Items]
Business acquisition, cost of acquired entity				$ 90	£ 60
Future cash consideration related to contingent payments				86										$ 86						£ 56
Future consideration related to contingent payments				40										40
Business acquisition purchase price allocation, goodwill amount				68
Unruly Holdings Limited [Member] | Acquired Technology [Member]
Schedule Of Business Acquisitions And Divestitures [Line Items]
Business acquisition purchase price allocation, amortizable intangible assets				$ 43										43
Finite lived intangible assets, weighted average useful life				7 years	7 years
Unruly Holdings Limited [Member] | Customer Relationships and Trade Names [Member]
Schedule Of Business Acquisitions And Divestitures [Line Items]
Business acquisition purchase price allocation, amortizable intangible assets				$ 21										21
Finite lived intangible assets, weighted average useful life				6 years	6 years
DIAKRIT International Limited [Member]
Schedule Of Business Acquisitions And Divestitures [Line Items]
Business acquisition, cost of acquired entity							$ 40
Business acquisition, acquired interest percentage							92.00%
Non-controlling ownership percentage							8.00%
Number of tranches | Tranche							2	2
Option to sell minority interest, period							6 years	6 years
Harlequin Enterprises Limited [Member]
Schedule Of Business Acquisitions And Divestitures [Line Items]
Business acquisition, cost of acquired entity											$ 414
Business acquisition purchase price allocation, amortizable intangible assets											$ 60
Finite lived intangible assets, weighted average useful life											5 years
Business acquisition purchase price allocation, goodwill amount											$ 185
Business acquisition purchase price allocation, cash											19
Business acquisition purchase price allocation, net tangible assets											115
Business acquisition purchase price allocation, net intangible assets											165
Business acquisition purchase price allocation, non-amortizable intangible assets											105
Business acquisition purchase price allocation, deferred tax liability											$ 35
Move Inc [Member]
Schedule Of Business Acquisitions And Divestitures [Line Items]
Business acquisition, cost of acquired entity										$ 892
Business acquisition, cost of acquired entity, cash paid										864
Business acquisition purchase price allocation, cash										108
Business acquisition purchase price allocation, net intangible assets										$ 216
Shares purchase price | $ / shares										$ 21.00
Fair value of assumed outstanding equity-based compensation awards										$ 67
Assumed equity-based compensation awards - pre-combination services										28
Consideration transferred for future services										$ 39
Business combination, weighted average remaining service period										2 years 6 months
Business acquisition, cash paid for outstanding indebtedness										$ 129
Move Inc [Member] | U.S. Federal [Member]
Schedule Of Business Acquisitions And Divestitures [Line Items]
Net operating loss carryforwards										947
Deferred tax assets gross										332
Valuation allowances and unrecognized tax benefits										484
Valuation allowances										170
Expected net operating loss carryforwards to be utilized										463
Net deferred tax asset										162
Increase in expected net operating loss carryforwards														167
Increase in expected net operating loss carryforwards tax-effected														$ 58
Reduction in net operating loss carryforwards															(298)
Expected net operating loss carryforwards		573													573
Expected net operating loss carryforwards tax-effected		201													201
Move Inc [Member] | Trademarks [Member]
Schedule Of Business Acquisitions And Divestitures [Line Items]
Business acquisition purchase price allocation, non-amortizable intangible assets										116
Move Inc [Member] | Customer Relationships Other Tradenames and Listing Service Agreements [Member]
Schedule Of Business Acquisitions And Divestitures [Line Items]
Business acquisition purchase price allocation, amortizable intangible assets										$ 100
Finite lived intangible assets, weighted average useful life										15 years
Move Inc [Member] | Technology-Based Intangible Assets [Member]
Schedule Of Business Acquisitions And Divestitures [Line Items]
Business acquisition purchase price allocation, amortizable intangible assets										$ 39
Finite lived intangible assets, weighted average useful life										4 years
Checkout 51 Mobile Apps ULC [Member]
Schedule Of Business Acquisitions And Divestitures [Line Items]
Business acquisition, cost of acquired entity									$ 13
Deferred cash consideration related to contingent payments															$ 10
iProperty Group Limited [Member]
Schedule Of Business Acquisitions And Divestitures [Line Items]
Business acquisition, cost of acquired entity							$ 416
Future consideration related to contingent payments							76
Business acquisition purchase price allocation, amortizable intangible assets							72
Business acquisition, cost of acquired entity, cash paid							340
iProperty Group Limited [Member] | REA Group [Member]
Schedule Of Business Acquisitions And Divestitures [Line Items]
Future consideration related to contingent payments							$ 76
Non-controlling ownership percentage							13.10%
Business acquisition, ownership percentage				22.70%			86.90%							22.70%					22.70%	22.70%
Company ownership percentage							61.60%	61.60%
Business acquisition, cost of acquired entity, cash paid							$ 340	AUD 482
Minority interest ownership redeemable year															2018
iProperty Group Limited [Member] | REA Group [Member] | Other, Net [Member]
Schedule Of Business Acquisitions And Divestitures [Line Items]
Business acquisition recognized gain resulting from remeasurement of previously held equity interest															$ 29
Flatmates [Member]
Schedule Of Business Acquisitions And Divestitures [Line Items]
Business acquisition, cost of acquired entity						$ 19
Future cash consideration related to contingent payments						$ 15
Wireless Group plc [Member]
Schedule Of Business Acquisitions And Divestitures [Line Items]
Business acquisition, cost of acquired entity		300	£ 220
Business acquisition, cost of acquired entity per share | £ / shares			£ 0.315
Restricted cash		$ 315													315
Storyful Limited [Member]
Schedule Of Business Acquisitions And Divestitures [Line Items]
Business acquisition, cost of acquired entity												$ 25
Business acquisition, cost of acquired entity, cash paid												$ 19
Australian Regional Media [Member]
Schedule Of Business Acquisitions And Divestitures [Line Items]
Business acquisition, cost of acquired entity															$ 30

[1] See Note 3-Acquisitions, Disposals and Other Transactions.

[2] In fiscal year 2016, the Company early-adopted ASU 2015-17, "Balance Sheet Classification of Deferred Taxes", which requires that deferred income tax liabilities and assets be classified as noncurrent in the Consolidated Balance Sheet. As such the requirement under prior guidance which required an entity to separate deferred tax liabilities and assets into a current and non-current amount in the Consolidated Balance Sheet has been eliminated. The prior periods have not been retroactively adjusted as a result of the adoption of ASU 2015-17.