(dollars in millions) | 2013 | 2012 | |||||
Future income tax benefits: | |||||||
Insurance and employee benefits | $ | 747 | $ | 1,168 | |||
Other asset basis differences | 365 | 119 | |||||
Other liability basis differences | 1,187 | 1,052 | |||||
Tax loss carryforwards | 386 | 382 | |||||
Tax credit carryforwards | 1,184 | 1,107 | |||||
Valuation allowances | (669 | ) | (618 | ) | |||
$ | 3,200 | $ | 3,210 | ||||
Future income taxes payable: | |||||||
Insurance and employee benefits | $ | (992 | ) | $ | (2,238 | ) | |
Other asset basis differences | 4,649 | 4,440 | |||||
Other items, net | (178 | ) | (195 | ) | |||
Tax loss carryforwards | (346 | ) | (409 | ) | |||
Tax credit carryforwards | (68 | ) | (80 | ) | |||
Valuation allowances | 273 | 286 | |||||
$ | 3,338 | $ | 1,804 | ||||