Discontinued Operations - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Sep. 30, 2015	Jun. 30, 2017		Jun. 30, 2016	Jun. 30, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Pre-tax non-cash impairment charge		$ 785		$ 0	$ 0
Impairment charges, goodwill		48	[1]	0
Digital Education [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Impairment charges, goodwill					325
Digital Education [Member] | Capitalized Software [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Write-down of capitalized software development costs					$ 45
Minimum [Member] | Digital Education [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Fair value, long-term growth rates					0.00%
Fair value, discount rates					12.00%
Maximum [Member] | Digital Education [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Fair value, long-term growth rates					4.00%
Fair value, discount rates					45.00%
Digital Education [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss before income tax benefit		$ 0		$ 159	$ 496
Digital Education [Member] | Severance and Lease Termination Costs [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss before income tax benefit	$ 17
Assets of discontinued operations [Member] | Digital Education [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Pre-tax non-cash impairment charge	76
Income tax benefit discontinued operations	$ 144

[1] In the News and Information Services segment, the write-down of goodwill primarily relates to a reporting unit in the UK. In the Digital Real Estate Services segment, the write-down of goodwill relates to the Company's DIAKRIT reporting unit.