Additional Financial Information - Schedule of Components of Accounts Payable, Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Millions	Jun. 30, 2026	Jun. 30, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Accrued expenses	$ 1,204	$ 1,081
Programming payable	801	1,070
Deferred revenue	272	299
Operating lease liabilities	45	41
Other current liabilities	345	406
Total accounts payable, accrued expenses and other current liabilities	$ 2,667	$ 2,897