Acquisitions, Disposals and Other Transactions - Schedule of Fair Value of Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Millions	Jun. 30, 2016	Feb. 29, 2016	Jun. 30, 2015	Nov. 30, 2014	Jun. 30, 2014
Assets acquired:
Goodwill	$ 3,714		$ 3,063		$ 2,457
iProperty Group Limited [Member]
Assets acquired:
Goodwill		$ 498
Intangible assets		72
Liabilities assumed:
Net Liabilities		(34)
Net assets acquired		$ 536
Move Inc [Member]
Assets acquired:
Cash				$ 108
Other current assets				28
Intangible assets				216
Deferred income taxes				153
Goodwill				552
Other non-current assets				69
Total assets acquired				1,126
Liabilities assumed:
Current liabilities				50
Deferred income taxes				52
Borrowings				129
Other non-current liabilities				3
Total liabilities assumed				234
Net assets acquired				$ 892