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Deferred Policy Acquisition Costs (Tables) | 12 Months Ended
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Dec. 31, 2020
Deferred Policy Acquisition Costs Disclosures [Abstract] |
Deferred Policy Acquisition Costs Details | A progression of deferred policy acquisition costs is presented below (in millions):
| P&C |  |  | Annuity and Run-off |  |  |
| Deferred |  |  | Deferred |  | Sales |  |  |  |  |  |  |  |  |  |  | Consolidated
| Costs |  |  | Costs |  | Inducements |  | PVFP |  | Subtotal |  | Unrealized (*) |  | Total |  |  | Total
Balance at December 31, 2017 | $ | 270 |  |  |  | $ | 1,217 |  |  | $ | 102 |  |  | $ | 49 |  |  | $ | 1,368 |  |  | $ | (422) |  |  | $ | 946 |  |  |  | $ | 1,216 |
Additions | 675 |  |  |  | 263 |  |  | 2 |  |  | — |  |  | 265 |  |  | — |  |  | 265 |  |  |  | 940 |
Amortization: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Periodic amortization | (644) |  |  |  | (238) |  |  | (19) |  |  | (7) |  |  | (264) |  |  | — |  |  | (264) |  |  |  | (908) |
Annuity unlocking | — |  |  |  | 29 |  |  | — |  |  | — |  |  | 29 |  |  | — |  |  | 29 |  |  |  | 29 |
Included in realized gains | — |  |  |  | 14 |  |  | 1 |  |  | — |  |  | 15 |  |  | — |  |  | 15 |  |  |  | 15 |
Foreign currency translation | (2) |  |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  |  | (2) |
Change in unrealized | — |  |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 392 |  |  | 392 |  |  |  | 392 |
Balance at December 31, 2018 | 299 |  |  |  | 1,285 |  |  | 86 |  |  | 42 |  |  | 1,413 |  |  | (30) |  |  | 1,383 |  |  |  | 1,682 |
Additions | 744 |  |  |  | 206 |  |  | 2 |  |  | — |  |  | 208 |  |  | — |  |  | 208 |  |  |  | 952 |
Amortization: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Periodic amortization | (721) |  |  |  | (120) |  |  | (13) |  |  | (6) |  |  | (139) |  |  | — |  |  | (139) |  |  |  | (860) |
Annuity unlocking | — |  |  |  | (76) |  |  | (1) |  |  | — |  |  | (77) |  |  | — |  |  | (77) |  |  |  | (77) |
Included in realized gains | — |  |  |  | 8 |  |  | 1 |  |  | — |  |  | 9 |  |  | — |  |  | 9 |  |  |  | 9 |
Foreign currency translation | — |  |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  |  | — |
Change in unrealized | — |  |  |  | — |  |  | — |  |  | — |  |  | — |  |  | (669) |  |  | (669) |  |  |  | (669) |
Balance at December 31, 2019 | 322 |  |  |  | 1,303 |  |  | 75 |  |  | 36 |  |  | 1,414 |  |  | (699) |  |  | 715 |  |  |  | 1,037 |
Additions | 547 |  |  |  | 154 |  |  | 2 |  |  | — |  |  | 156 |  |  | — |  |  | 156 |  |  |  | 703 |
Amortization: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Periodic amortization | (615) |  |  |  | (127) |  |  | (9) |  |  | (6) |  |  | (142) |  |  | — |  |  | (142) |  |  |  | (757) |
Annuity unlocking | — |  |  |  | (118) |  |  | 4 |  |  | — |  |  | (114) |  |  | — |  |  | (114) |  |  |  | (114) |
Included in realized gains | — |  |  |  | (42) |  |  | 1 |  |  | — |  |  | (41) |  |  | — |  |  | (41) |  |  |  | (41) |
Foreign currency translation | — |  |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  |  | — |
Other | (10) |  |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  |  | (10) |
Change in unrealized | — |  |  |  | — |  |  | — |  |  | — |  |  | — |  |  | (272) |  |  | (272) |  |  |  | (272) |
Balance at December 31, 2020 | $ | 244 |  |  |  | $ | 1,170 |  |  | $ | 73 |  |  | $ | 30 |  |  | $ | 1,273 |  |  | $ | (971) |  |  | $ | 302 |  |  |  | $ | 546 |
(*)Adjustments to DPAC related to net unrealized gains/losses on securities and cash flow hedges.

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