Income Taxes - Schedule of Components of Provision for Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2024
Current
Federal	$ 198	$ 455	$ 300
State and local	69	138	41
Foreign	13	11	6
Total current	280	604	347
Deferred
Federal	259	164	168
State and local	14	1	36
Foreign	(2)	(1)	(1)
Total deferred	271	164	203
Provision for income taxes	$ 551	$ 768	$ 550