Additional Financial Information - Components of Accounts Payable, Accrued Expenses and Other Current Liabilities (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Jun. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Accrued expenses	$ 850	$ 1,077
Program rights payable	771	659
Deferred revenue	163	196
Operating lease liabilities	105	92
Other current liabilities	231	229
Total accounts payable, accrued expenses and other current liabilities	$ 2,120	$ 2,253