Leases Supplemental Cash Flow Information (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2023
Leases [Abstract]
Operating Lease, Payments	$ 167	$ 124	$ 119
Finance Lease, Principal Payments	53	36	31
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	130	143	75
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability	$ 107	$ 55	$ 42