25. Employee benefit obligations

  As at Dec 31 2014 As at Dec 31 2013
Liabilities under length-of-service awards  491  425
Liabilities under severance  100  78
Wages and salaries payable  74  57
Amounts payable for unused holiday entitlement  63  68
Termination benefits  10  25
Other employee benefit obligations  150  224
Total  888  877
     
Non-current employee benefit obligations  604  502
Current employee benefit obligations  284  375
 

25.1.  Actuarial gains and losses for length-of-service award and retirement severance obligations

  As at Dec 31 2014 As at Dec 31 2013
Length-of-service awards    
Value of obligation disclosed in the statement of financial position at beginning of the period  425  175
Interest expense  11  3
Current service cost  24  19
Past service cost  17  1
Benefits paid  (61)  (62)
Actuarial gain/(loss)  69  282
Gain/(loss) due to curtailments or settlements  5  7
Reclassification to liabilities associated with assets held for sale  1  -
Value of obligation disclosed in the statement of financial position at end of the period  491  425
     
Retirement severance    
Value of obligation disclosed in the statement of financial position at beginning of the period  78  202
Interest expense  2  4
Current service cost  4  2
Past service cost  (1)  -
Benefits paid  (14)  (15)
Actuarial gain/(loss)  30  (108)
Gain/(loss) due to curtailments or settlements  1  (7)
Value of obligation disclosed in the statement of financial position at end of the period  100  78
     
Total value of obligation disclosed in the statement of financial position at end of the period  591  503
 

The technical rate applied to calculate the discounted value of the future retirement severance obligations was 0.9%, as the resultant of the 2.5% annual return on long-term treasury bonds and the 1.6% forecast annual salary growth (at the end of 2013 the applied technical rate was 2.4%, as the resultant of 4.35% and 1.9%, respectively).