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Deferred Policy Acquisition Costs (Tables) | 12 Months Ended
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Dec. 31, 2021
Deferred Policy Acquisition Costs Disclosures [Abstract] |
Deferred Policy Acquisition Costs [Table Text Block] | The following reflects the amounts of policy acquisition costs deferred and amortized (dollars in millions):
Years ended December 31, |  | 2021 |  | 2020 |  | 2019
Balance, beginning of year |  | $ | 3,616 |  |  | $ | 3,512 |  |  | $ | 3,398 |
Capitalization |  | 541 |  |  | 478 |  |  | 526 |
Amortization (including interest) |  | (496) |  |  | (405) |  |  | (315) |
Change in value of embedded derivatives |  | (36) |  |  | 22 |  |  | (15) |
Attributed to unrealized investment gains (losses) |  | 33 |  |  | (26) |  |  | (97) |
Foreign currency translation |  | 32 |  |  | 35 |  |  | 15 |
Balance, end of year |  | $ | 3,690 |  |  | $ | 3,616 |  |  | $ | 3,512 |

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