|
|
2017 |
|
2016 |
|
|
|
$ million |
|
$ million |
|
At 1 January |
|
25 |
|
13 |
|
Additions |
|
8 |
|
2 |
|
Fair value remeasurement |
|
(10) |
|
10 |
|
Impairment |
|
(2) |
|
– |
|
At 31 December |
|
21 |
|
25 |
|