Restructuring Programs - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2021
Restructuring Cost And Reserve [Line Items]
Restructuring reserve, current	$ 74	$ 16
Restructuring reserve, noncurrent	10	11
Cable Network Programming And Television Segments | Contract termination costs
Restructuring Cost And Reserve [Line Items]
Restructuring charges	$ 111	$ 0	$ 35