v3.26.1
Equity Method and Other Investments (Details) - USD ($)
$ in Millions
12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2024
Schedule of Equity Method Investments [Line Items]      
Equity method investment, aggregate cost $ 24 $ 100  
Dividends received from affiliated companies $ 0 $ 0 $ 0
ePac Holdings LLC      
Schedule of Equity Method Investments [Line Items]      
Equity method investment, ownership percentage   21.10%