Additional Financial Information - Schedule of Components of Accounts Payable, Accrued Expenses and Other Current Liabilities (Detail) - USD ($) $ in Millions	Dec. 31, 2024	Jun. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Programming payable	$ 983	$ 683
Accrued expenses	974	1,006
Deferred revenue	236	180
Operating lease liabilities	70	76
Other current liabilities	434	408
Total accounts payable, accrued expenses and other current liabilities	$ 2,697	$ 2,353