Research and Development (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2023
Research and Development [Abstract]
Research and development costs	$ 240	$ 253	$ 258
Pre-production expens incurred in connection with research and development contracts	$ 58	$ 45	$ 73