Segment Information - Revenue and Long-Lived Assets by Geographic Region (Detail) - USD ($) $ in Millions		3 Months Ended																12 Months Ended
		Jun. 30, 2019		Mar. 31, 2019	[1],[2]	Dec. 31, 2018	[1],[2]	Sep. 30, 2018	[1],[2]	Jun. 30, 2018		Mar. 31, 2018	[1],[2]	Dec. 31, 2017	[1],[2]	Sep. 30, 2017	[1],[2]	Jun. 30, 2019		Jun. 30, 2018		Jun. 30, 2017
Segment Reporting Information [Line Items]
Total Revenues		$ 2,466	[1],[2]	$ 2,457		$ 2,627		$ 2,524		$ 2,693	[1],[2]	$ 2,093		$ 2,180		$ 2,058		$ 10,074	[3]	$ 9,024	[3]	$ 8,139	[3]
Total long-lived assets	[4]	3,484								3,391								3,484		3,391
U.S. and Canada [Member]
Segment Reporting Information [Line Items]
Total Revenues	[3],[5]																	4,044		3,998		3,880
Total long-lived assets	[4]	983								937								983		937
Europe [Member]
Segment Reporting Information [Line Items]
Total Revenues	[3],[6]																	1,664		1,766		1,671
Total long-lived assets	[4]	654								682								654		682
Australasia and Other [Member]
Segment Reporting Information [Line Items]
Total Revenues	[3],[7]																	4,366		3,260		$ 2,588
Total long-lived assets	[4]	$ 1,847								$ 1,772								$ 1,847		$ 1,772

[1] Revenue for the fiscal year ended June 30, 2019 and for the three months ended June 30, 2018 includes the impact of the consolidation of Foxtel.

[2] Revenue for the fiscal year ended June 30, 2019 reflects the adoption of the new revenue recognition standard See Note 3—Revenues.

[3] Revenues are attributed to region based on location of customer.

[4] Reflects total assets less current assets, goodwill, intangible assets, investments and deferred income tax assets.

[5] Revenues include approximately $3.9 billion for fiscal 2019, $3.9 billion for fiscal 2018 and $3.7 billion for fiscal 2017 from customers in the U.S.

[6] Revenues include approximately $1.3 billion for fiscal 2019, $1.4 billion for fiscal 2018 and $1.3 billion for fiscal 2017 from customers in the U.K.

[7] Revenues include approximately $4.0 billion for fiscal 2019, $2.9 billion for fiscal 2018 and $2.3 billion for fiscal 2017 from customers in Australia.