Additional Financial Information - Schedule of Components of Accounts Payable, Accrued Expenses and Other Current Liabilities (Detail) - USD ($) $ in Millions	Sep. 30, 2024	Jun. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Accrued expenses	$ 814	$ 1,006
Programming payable	686	683
Deferred revenue	328	180
Operating lease liabilities	76	76
Other current liabilities	501	408
Total accounts payable, accrued expenses and other current liabilities	$ 2,405	$ 2,353