Additional Financial Information - Components of Other Non-Current Assets (Detail) - USD ($) $ in Millions	Jun. 30, 2021	Jun. 30, 2020
Assets, Noncurrent [Abstract]
Royalty advances to authors	$ 406	$ 348
Retirement benefit assets	120	94
Inventory	279	133
News America Marketing deferred consideration	128	111
Other	514	353
Total Other non-current assets	1,447	1,039
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Inventory, net	253	348
Other non-current assets	1,447	$ 1,039
Revision of Prior Period, Accounting Standards Update, Adjustment | Accounting Standards Update 2019-02
Assets, Noncurrent [Abstract]
Total Other non-current assets	151
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Inventory, net	(151)
Other non-current assets	$ 151