Acquisitions, Disposals and Other Transactions - Schedule Of Class Of Assets And Liabilities Held For Sale Included In Other Current Assets and Liabilities In Balance Sheet (Detail) - USD ($) $ in Millions	Mar. 31, 2020	Jun. 30, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total assets held for sale	$ 334	$ 0
Discontinued Operations, Held-for-sale [Member] | News America Marketing [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash and cash equivalents	10
Receivables, net	217
Other current assets	28
Intangible assets, net	225
Other non-current assets	29
Impairment charge on disposal group	(175)
Total assets held for sale	334
Accounts payable	13
Accrued expenses	69
Deferred revenue	46
Other current liabilities	54
Other non-current liabilities	8
Total liabilities	$ 190