|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ million |
|
|
|||||
|
|
|
2017 |
|
|
2016 |
|
|
||
|
At January 1 |
|
|
256,583 |
|
|
|
203,066 |
|
|
|
Additions |
|
|
— |
|
|
|
53,118 |
|
[A] |
|
Share-based compensation |
|
|
779 |
|
|
|
645 |
|
|
|
Recovery of vested share-based compensation |
|
|
(480 |
) |
|
|
(246 |
) |
|
|
At December 31 |
|
|
256,882 |
|
|
|
256,583 |
|
|
[A] See Note 15.