Income Taxes - Schedule of Components of Provision for Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Income Tax Provision, Continuing Operations [Abstract]
Federal	$ 300	$ 127	$ 88
State, local and other	47	35	31
Total current	347	162	119
Deferred	203	321	342
Provision for income taxes	$ 550	$ 483	$ 461