Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.
| Period | Length | Value | Last reported | Filings |
|---|---|---|---|---|
| Jan 1, 2010 – Sep 30, 2010 | 9 months | $214,000,000 | Nov 5, 2010 | 1 |
| Jan 1, 2010 – Jun 30, 2010 | 6 months | $180,000,000 | Aug 4, 2010 | 1 |
| Jan 1, 2009 – Sep 30, 2009 | 9 months | $52,000,000 | Nov 5, 2010 | 1 |
| Jan 1, 2009 – Jun 30, 2009 | 6 months | $32,000,000 | Aug 4, 2010 | 1 |