Leases - Schedule of Operating Lease Components of Balance Sheet and Other Supplemental Information (Details) - USD ($) $ in Millions	Jun. 30, 2026	Jun. 30, 2025
Leases [Abstract]
ROU assets	$ 851	$ 814
Lease liabilities
Current lease liabilities	$ 45	$ 41
Operating lease, liability, current, statement of financial position	Accounts payable, accrued expenses and other current liabilities	Accounts payable, accrued expenses and other current liabilities
Non-current lease liabilities	$ 917	$ 822
Operating lease, liability, noncurrent, statement of financial position	Other liabilities	Other liabilities
Total lease liabilities	$ 962	$ 863
Operating lease, liability, statement of financial position	Other Liabilities	Other Liabilities
Other supplemental information
Weighted average remaining lease term	14 years	15 years
Weighted average discount rate	5.00%	5.00%