Consolidated Balance Sheets (Parenthetical) - shares	Jun. 30, 2024	Jun. 30, 2023
Statement of Financial Position [Abstract]
Preferred shares, authorized	500,000	500,000
Preferred shares, issued	0	0
Common shares, authorized	755,000,000	755,000,000
Common shares, issued	327,000,000	327,000,000
Common shares in treasury	83,000,000	76,000,000