Segment Information - Revenue and Long-Lived Assets by Geographic Region (Detail) - USD ($) $ in Millions		3 Months Ended								12 Months Ended
		Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues		$ 2,141	$ 2,062	$ 2,280	$ 2,150	$ 2,186	$ 2,078	$ 2,238	$ 2,072	$ 8,633	$ 8,574	$ 8,891
Total long-lived assets		3,218				3,545				3,218	3,545
U.S. and Canada [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	[1]									3,917	3,719	3,862
Total long-lived assets		1,158				1,094				1,158	1,094
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	[2]									1,982	2,045	2,048
Total long-lived assets		1,201				1,318				1,201	1,318
Australasia and Other [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	[3]									2,734	2,810	$ 2,981
Total long-lived assets		$ 859				$ 1,133				$ 859	$ 1,133

[1] (b) Revenues include approximately $3.8 billion for fiscal 2015, $3.5 billion for fiscal 2014 and $3.7 billion for fiscal 2013 from customers in the U.S.

[2] Revenues include approximately $1.6 billion for fiscal 2015, and $1.8 billion for each of the fiscal years 2014 and 2013 from customers in the U.K.

[3] Revenues include approximately $2.3 billion for fiscal 2015, $2.6 billion for fiscal 2014 and $2.8 billion for fiscal 2013 from customers in Australia.