(Millions of dollars) Year Ended December 31, | Pensions | ||||||||||||||||||||||
2013 | 2012 | OPEB | |||||||||||||||||||||
U.S. | International | U.S. | International | 2013 | 2012 | ||||||||||||||||||
Change in Benefit Obligation ("PBO") | |||||||||||||||||||||||
Benefit obligation January 1 | $ | 1,926 | $ | 727 | $ | 1,721 | $ | 624 | $ | 251 | $ | 226 | |||||||||||
Service cost | 38 | 18 | 34 | 15 | 5 | 4 | |||||||||||||||||
Interest cost | 74 | 38 | 79 | 40 | 11 | 12 | |||||||||||||||||
Participant contributions | — | — | — | — | 11 | 9 | |||||||||||||||||
Actuarial loss (gain) | (148 | ) | (43 | ) | 182 | 89 | (39 | ) | 31 | ||||||||||||||
Benefits paid | (99 | ) | (38 | ) | (90 | ) | (43 | ) | (23 | ) | (29 | ) | |||||||||||
Foreign currency translation | — | (41 | ) | — | 2 | (8 | ) | (2 | ) | ||||||||||||||
Benefit obligation, December 31 | $ | 1,791 | $ | 661 | $ | 1,926 | $ | 727 | $ | 208 | $ | 251 | |||||||||||
Accumulated benefit obligation ("ABO") | $ | 1,712 | $ | 629 | $ | 1,831 | $ | 678 | |||||||||||||||
Change in Plan Assets | |||||||||||||||||||||||
Fair value of plan assets, January 1 | $ | 1,391 | $ | 558 | $ | 1,138 | $ | 504 | $ | — | $ | — | |||||||||||
Actual return on plan assets | 271 | 43 | 159 | 70 | — | — | |||||||||||||||||
Company contributions | 35 | 17 | 165 | 19 | — | — | |||||||||||||||||
Benefits paid from plan assets | (77 | ) | (33 | ) | (71 | ) | (39 | ) | — | — | |||||||||||||
Foreign currency translation | — | (34 | ) | — | 4 | — | — | ||||||||||||||||
Fair value of plan assets, December 31 | $ | 1,620 | $ | 551 | $ | 1,391 | $ | 558 | $ | — | $ | — | |||||||||||
Funded Status, End of Year | $ | (171 | ) | $ | (110 | ) | $ | (535 | ) | $ | (169 | ) | $ | (208 | ) | $ | (251 | ) | |||||
Recorded in the Balance Sheet | |||||||||||||||||||||||
Other long-term assets | $ | — | $ | 42 | $ | — | $ | — | $ | — | $ | — | |||||||||||
Other current liabilities | (10 | ) | (6 | ) | (21 | ) | (6 | ) | (17 | ) | (19 | ) | |||||||||||
Other long-term liabilities | (161 | ) | (146 | ) | (514 | ) | (163 | ) | (191 | ) | (232 | ) | |||||||||||
Net amount recognized, December 31 | $ | (171 | ) | $ | (110 | ) | $ | (535 | ) | $ | (169 | ) | $ | (208 | ) | $ | (251 | ) | |||||
Amounts recognized in accumulated other comprehensive income (loss) consist of: | |||||||||||||||||||||||
Net actuarial loss (gain) | $ | 563 | $ | 145 | $ | 956 | $ | 217 | $ | (7 | ) | $ | 34 | ||||||||||
Prior service cost (credit) | 1 | 18 | (1 | ) | 23 | (4 | ) | (10 | ) | ||||||||||||||
Deferred tax benefit (Note 5) | (215 | ) | (38 | ) | (364 | ) | (56 | ) | 6 | (7 | ) | ||||||||||||
Amount recognized in accumulated other comprehensive income (loss) (Note 7) | $ | 349 | $ | 125 | $ | 591 | $ | 184 | $ | (5 | ) | $ | 17 |