v3.26.1
Research and Development (Details) - USD ($)
$ in Millions
12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2024
Research and Development [Abstract]      
Research and development costs $ 267 $ 240 $ 253
Pre-production expense incurred in connection with research and development contracts $ 43 $ 58 $ 45