Segment Information - Schedule of Reconciliation of Depreciation and Amortization from Segments to Consolidated (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2024
Segment Reporting [Line Items]
Total depreciation and amortization	$ 410	$ 385	$ 389
Total capital expenditures	502	331	345
Corporate and Other
Segment Reporting [Line Items]
Total depreciation and amortization	179	172	195
Total capital expenditures	166	122	108
Cable Network Programming | Operating Segments
Segment Reporting [Line Items]
Total depreciation and amortization	105	94	77
Total capital expenditures	147	127	161
Television | Operating Segments
Segment Reporting [Line Items]
Total depreciation and amortization	126	119	117
Total capital expenditures	$ 189	$ 82	$ 76