Pension Plans | Postretirement Benefit Plans | ||||||||||||||||||||||
2013 | 2012 | 2013 | 2012 | ||||||||||||||||||||
(Dollars in millions) | U.S. | Non-U.S. | U.S. | Non-U.S. | |||||||||||||||||||
Change in projected benefit obligation: | |||||||||||||||||||||||
Benefit obligation, beginning of year | $ | 2,466 | $ | 672 | $ | 1,531 | $ | 257 | $ | 1,140 | $ | 881 | |||||||||||
Service cost | 43 | 14 | 40 | 8 | 11 | 10 | |||||||||||||||||
Interest cost | 89 | 27 | 86 | 19 | 44 | 45 | |||||||||||||||||
Actuarial (gain) loss | (184 | ) | 22 | 196 | 88 | (123 | ) | 93 | |||||||||||||||
Curtailment gain | — | (1 | ) | — | — | — | — | ||||||||||||||||
Acquisitions | — | — | 727 | 291 | — | 167 | |||||||||||||||||
Plan amendments and other | — | — | — | — | (47 | ) | (3 | ) | |||||||||||||||
Plan participants' contributions | — | 2 | — | 1 | 20 | 16 | |||||||||||||||||
Effect of currency exchange | — | 20 | — | 21 | (1 | ) | — | ||||||||||||||||
Federal subsidy on benefits paid | — | — | — | — | 1 | 2 | |||||||||||||||||
Benefits paid | (178 | ) | (20 | ) | (114 | ) | (13 | ) | (83 | ) | (71 | ) | |||||||||||
Benefit obligation, end of year | $ | 2,236 | $ | 736 | $ | 2,466 | $ | 672 | $ | 962 | $ | 1,140 | |||||||||||
Change in plan assets: | |||||||||||||||||||||||
Fair value of plan assets, beginning of year | $ | 1,702 | $ | 596 | $ | 1,003 | $ | 276 | $ | 210 | $ | 55 | |||||||||||
Actual return on plan assets | 239 | 39 | 171 | 54 | 7 | 13 | |||||||||||||||||
Effect of currency exchange | — | 17 | — | 17 | — | — | |||||||||||||||||
Company contributions | 124 | 24 | 128 | 21 | 40 | 38 | |||||||||||||||||
Reserve for third party contributions | — | — | — | — | (16 | ) | (5 | ) | |||||||||||||||
Plan participants' contributions | — | 2 | — | 1 | 20 | 16 | |||||||||||||||||
Benefits paid | (178 | ) | (20 | ) | (114 | ) | (13 | ) | (83 | ) | (71 | ) | |||||||||||
Federal subsidy on benefits paid | — | — | — | — | 1 | 2 | |||||||||||||||||
Acquisitions | — | — | 514 | 240 | — | 162 | |||||||||||||||||
Fair value of plan assets, end of year | $ | 1,887 | $ | 658 | $ | 1,702 | $ | 596 | $ | 179 | $ | 210 | |||||||||||
Funded status at end of year | $ | (349 | ) | $ | (78 | ) | $ | (764 | ) | $ | (76 | ) | $ | (783 | ) | $ | (930 | ) | |||||
Amounts recognized in the Consolidated Statements of Financial Position consist of: | |||||||||||||||||||||||
Other noncurrent assets | $ | — | $ | 7 | $ | — | $ | 11 | $ | 3 | $ | 7 | |||||||||||
Current liabilities | (3 | ) | (1 | ) | (3 | ) | (1 | ) | (41 | ) | (42 | ) | |||||||||||
Post-employment obligations | (346 | ) | (84 | ) | (761 | ) | (86 | ) | (745 | ) | (895 | ) | |||||||||||
Net amount recognized, end of year | $ | (349 | ) | $ | (78 | ) | $ | (764 | ) | $ | (76 | ) | $ | (783 | ) | $ | (930 | ) | |||||
Accumulated benefit obligation | $ | 2,123 | $ | 678 | $ | 2,387 | $ | 603 | |||||||||||||||
Amounts recognized in accumulated other comprehensive income consist of: | |||||||||||||||||||||||
Prior service credit | $ | (18 | ) | $ | — | $ | (22 | ) | $ | — | $ | (108 | ) | $ | (83 | ) | |||||||