| ($ in millions) | |||||||||||||||||||||
| Benefit Obligations | Fair Value of Plan Assets | Funded Status* | |||||||||||||||||||
| At December 31: | 2013 | 2012 | 2013 | 2012 | 2013 | 2012 | |||||||||||||||
| U.S. Plans | |||||||||||||||||||||
| Overfunded plans | |||||||||||||||||||||
| Qualified PPP | $ | 49,315 | $ | — | $ | 53,954 | $ | — | $ | 4,639 | $ | — | |||||||||
| Underfunded plans | |||||||||||||||||||||
| Qualified PPP | $ | — | $ | 54,907 | $ | — | $ | 53,630 | $ | — | $ | (1,277) | |||||||||
| Excess PPP | 1,425 | 1,576 | — | — | (1,425) | (1,576) | |||||||||||||||
| Retention Plan | 294 | 327 | — | — | (294) | (327) | |||||||||||||||
| Nonpension postretirement benefit plan | 4,633 | 5,282 | 177 | 433 | (4,456) | (4,849) | |||||||||||||||
| Total underfunded U.S. plans | $ | 6,352 | $ | 62,092 | $ | 177 | $ | 54,063 | $ | (6,175) | $ | (8,029) | |||||||||
| Non-U.S. Plans | |||||||||||||||||||||
| Overfunded plans | |||||||||||||||||||||
| Qualified defined benefit pension plans | $ | 9,336 | $ | 6,944 | $ | 10,240 | $ | 7,889 | $ | 904 | $ | 945 | |||||||||
| Nonpension postretirement benefit plans | 10 | 12 | 11 | 12 | 1 | 0 | |||||||||||||||
| Total overfunded non-U.S. plans | $ | 9,346 | $ | 6,956 | $ | 10,251 | $ | 7,901 | $ | 905 | $ | 945 | |||||||||
| Underfunded plans | |||||||||||||||||||||
| Qualified defined benefit pension plans | $ | 32,697 | $ | 35,956 | $ | 29,223 | $ | 30,169 | $ | (3,474) | $ | (5,788) | |||||||||
| Nonqualified defined benefit pension plans | 6,587 | 6,418 | — | — | (6,587) | (6,418) | |||||||||||||||
| Nonpension postretirement benefit plans | 822 | 1,007 | 81 | 107 | (741) | (900) | |||||||||||||||
| Total underfunded non-U.S. plans | $ | 40,106 | $ | 43,381 | $ | 29,304 | $ | 30,276 | $ | (10,802) | $ | (13,106) | |||||||||
| Total overfunded plans | $ | 58,661 | $ | 6,956 | $ | 64,205 | $ | 7,901 | $ | 5,544 | $ | 945 | |||||||||
| Total underfunded plans | $ | 46,458 | $ | 105,473 | $ | 29,481 | $ | 84,338 | $ | (16,977) | $ | (21,134) | |||||||||
* Funded status is recognized in the Consolidated Statement of Financial Position as follows: Asset amounts as prepaid pension assets; (Liability) amounts as compensation and benefits (current liability) and retirement and nonpension postretirement benefit obligations (noncurrent liability).