Segment Information - Reconciliation of Revenues to Segment EBITDA (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2025	Dec. 31, 2024
Segment Reporting Information [Line Items]
Revenues	$ 5,182	$ 5,078	$ 8,920	$ 8,642
Operating expenses	(3,895)	(3,776)	(5,979)	(5,794)
Selling, general and administrative	(595)	(525)	(1,184)	(1,027)
Amortization of cable distribution investments	0	(4)	0	(8)
Cable Network Programming | Operating Segments
Segment Reporting Information [Line Items]
Revenues	2,275	2,165	3,937	3,762
Operating expenses	(1,426)	(1,354)	(2,129)	(2,056)
Selling, general and administrative	(162)	(158)	(321)	(309)
Amortization of cable distribution investments	0	4	0	8
Segment EBITDA	687	657	1,487	1,405
Television | Operating Segments
Segment Reporting Information [Line Items]
Revenues	2,937	2,961	4,987	4,914
Operating expenses	(2,521)	(2,499)	(3,906)	(3,832)
Selling, general and administrative	(273)	(257)	(539)	(505)
Segment EBITDA	$ 143	$ 205	$ 542	$ 577