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SHARE BASED COMPENSATION (Tables) | 12 Months Ended
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Dec. 31, 2019
SHARE BASED COMPENSATION |
Schedule of share-based compensation expense |
($ millions) |  | 2019 |  | 2018 |
Equity-settled plans |  | 50 |  | 46 |
Cash-settled plans |  | 274 |  | 181 |
Total share-based compensation expense |  | 324 |  | 227 |
Summary of liability recognized for share-based compensation |
($ millions) |  | 2019 |  | 2018 |
Current liability |  | 242 |  | 286 |
Long-term liability (note 21) |  | 289 |  | 259 |
Total Liability |  | 531 |  | 545 |
Schedule of weighted average fair value of options granted during the period and the weighted average assumptions used in their determination |
|  | 2019 |  | 2018 |
Annual dividend per share (dollars) |  | 1.68 |  | 1.44 |
Risk-free interest rate |  | 1.78% |  | 2.03% |
Expected life |  | 5 years |  | 5 years |
Expected volatility |  | 26% |  | 24% |
Weighted average fair value per option (dollars) |  | 6.61 |  | 6.73 |
Summary of stock option plans |
|  | 2019 |  | 2018 |
|  | Number (thousands) |  | Weighted Average Exercise Price ($) |  | Number (thousands) |  | Weighted Average Exercise Price ($) |
Outstanding, beginning of year |  | 28 935 |  | 38.25 |  | 31 110 |  | 36.96 |
Granted |  | 7 756 |  | 42.96 |  | 7 231 |  | 43.19 |
Exercised as options for common shares |  | (2 688 | ) | 33.37 |  | (7 927 | ) | 35.95 |
Forfeited/expired |  | (121 | ) | 42.57 |  | (1 479 | ) | 47.88 |
Outstanding, end of year |  | 33 882 |  | 39.70 |  | 28 935 |  | 38.25 |
Exercisable, end of year |  | 21 535 |  | 37.86 |  | 15 374 |  | 36.10 |
Schedule of exercise price ranges and weighted average remaining contractual lives |
|  | Outstanding |  | Exercisable |
Exercise Prices ($) |  | Number (thousands) |  | Weighted Average Remaining Contractual Life (years) |  | Weighted Average Exercise Price ($) |  | Number (thousands) |  | Weighted Average Exercise Price ($) |
30.21-34.99 |  | 5 614 |  | 3 |  | 30.36 |  | 5 614 |  | 30.36 |
35.00-39.99 |  | 6 851 |  | 2 |  | 37.74 |  | 6 782 |  | 37.74 |
40.00-44.99 |  | 21 235 |  | 5 |  | 42.70 |  | 9 078 |  | 42.50 |
45.00-49.99 |  | 54 |  | 6 |  | 48.00 |  | 18 |  | 48.04 |
50.00-54.27 |  | 128 |  | 6 |  | 52.40 |  | 43 |  | 52.40 |
Total |  | 33 882 |  | 4 |  | 39.70 |  | 21 535 |  | 37.86 |
Summary of common shares available for granting future options |
(thousands) |  | 2019 |  | 2018 |
|  | 14 295 |  | 21 929 |
Summary of share units and stock appreciation rights |
(thousands) |  | PSU |  | RSU |  | DSU |  |
Outstanding, December 31, 2017 |  | 2 267 |  | 16 072 |  | 1 302 |  |
| Granted |  | 1 553 |  | 4 796 |  | 192 |  |
| Redeemed for cash |  | (1 623 | ) | (5 962 | ) | (189 | ) |
| Forfeited/expired |  | — |  | (314 | ) | — |  |
Outstanding, December 31, 2018 |  | 2 197 |  | 14 592 |  | 1 305 |  |
| Granted |  | 1 212 |  | 4 861 |  | 200 |  |
| Redeemed for cash |  | (1 210 | ) | (5 577 | ) | (217 | ) |
| Forfeited/expired |  | (6 | ) | (274 | ) | (1 | ) |
Outstanding, December 31, 2019 |  | 2 193 |  | 13 602 |  | 1 287 |  |
Stock Appreciation Rights (SARs) |
SHARE BASED COMPENSATION |
Summary of share units and stock appreciation rights |
|  | 2019 |  | 2018 |
|  | Number (thousands) |  | Weighted Average Exercise Price ($) |  | Number (thousands) |  | Weighted Average Exercise Price ($) |
Outstanding, beginning of year |  | 363 |  | 38.60 |  | 387 |  | 36.38 |
Granted |  | 112 |  | 42.95 |  | 108 |  | 43.09 |
Exercised |  | (44 | ) | 34.53 |  | (126 | ) | 35.65 |
Forfeited/expired |  | (46 | ) | 42.85 |  | (6 | ) | 38.36 |
Outstanding, end of year |  | 385 |  | 39.83 |  | 363 |  | 38.60 |
Exercisable, end of year |  | 223 |  | 37.62 |  | 170 |  | 36.57 |

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