Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Sep. 30, 2015	Jun. 30, 2015
Statement of Financial Position [Abstract]
Preferred shares, No Par Value
Preferred shares, Authorized	500,000	500,000
Preferred shares, Issued	0	0
Common shares, No Par Value
Common shares, Authorized	755,000,000	755,000,000
Common shares, Issued	364,000,000	364,000,000
Common shares in treasury	35,000,000	36,000,000