Notes to consolidated financial statements  September 27, 2014 and September 28, 2013 22. OTHER LIABILITIES 23. CAPIT AL STOCK T reasury shares are held in trust for the PSU plan. They will be released into circulation when the PSUs settle. The trust,  considered a  structured entity, is consolidated in  the  Corporation's  financial statements. The  Common Shares  issued  and  the  changes  during the  year were summarized  as  follows: The  authorized  capital  stock of the Corporation  was  summarized as follows: • unlimited  number  of Common Shares, bearing one  voting  right per share,  participating, without  par value; • unlimited  number  of Preferred  Shares,  non-voting,  without par  value,  issuable in  series. Common  Shares issued T reasury  shares The  treasury shares changes  during the  year were summarized as follows: (Millions of dollars, unless otherwise indicated) 2014  2013 Lease liabilities 9.3  11.2 Other liabilities 1.3  2.9 10.6 14.1 Number  (Thousands) Balance as at September 29, 2012  97,444 666.3 Shares redeemed for cash, excluding premium of $366.1  (6,241) (43.3) Stock options exercised 445  17.4 Balance as at September 28, 2013  91,648 640.4 Shares redeemed for cash, excluding premium of $409.9  (7,093) (49.8) Stock options exercised 189  8.6 Balance as at September 27, 2014  84,744 599.2 Number  (Thousands) Balance as at September 29, 2012  258 (12.2) Acquisition 94  (6.3) Release (90 ) 4.1 Balance as at September 28, 2013  262 (14.4) Acquisition 75  (4.6) Release (83 ) 3.8 Balance as at September 27, 2014  254 (15.2) - 71 -