Income Taxes Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Jun. 30, 2025
Income Taxes
Provision for income taxes	$ (144)	$ (124)
Effective Income Tax Rate Reconciliation, Percent	24.10%	23.00%
Unrecognized tax benefits	$ 894		$ 879
Unrecognized tax benefits that would impact effective tax rate	877		871
Unrecognized tax benefits, interest and penalties accrued	$ 70		$ 65
Federal | Minimum
Income Taxes
Open Tax Year	2015