| (9) | The sensitivity to actuarial assumptions used in the assessment of defined benefit obligation is as follows (Unit: Korean Won in millions): |
| Change of defined benefit obligation as of | ||||||||||
| December 31, 2016 | December 31, 2017 | |||||||||
|
Discount rate |
Increase by 1% point | (107,203 | ) | (116,405 | ) | |||||
| Decrease by 1% point | 125,395 | 137,151 | ||||||||
|
Future wage growth rate |
Increase by 1% point | 124,766 | 136,707 | |||||||
| Decrease by 1% point | (108,344 | ) | (117,765 | ) | ||||||