v3.8.0.1

Deferred Policy Acquisition Costs | 12 Months Ended
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Dec. 31, 2017
Deferred Policy Acquisition Costs Disclosures [Abstract] |
Deferred Policy Acquisition Costs | DEFERRED POLICY ACQUISITION COSTS The balances of and changes in DAC as of and for the years ended December 31, are as follows:
| 2017 |  | 2016 |  | 2015
| (in millions)
Balance, beginning of year | $ | 17,661 |  |  | $ | 16,718 |  |  | $ | 15,971 |
Capitalization of commissions, sales and issue expenses | 2,820 |  |  | 2,845 |  |  | 2,653 |
Amortization—Impact of assumption and experience unlocking and true-ups | 247 |  |  | 445 |  |  | 280 |
Amortization—All other | (1,827 | ) |  | (2,322 | ) |  | (2,400 | )
Change in unrealized investment gains and losses | (190 | ) |  | (199 | ) |  | 477 |
Foreign currency translation and other | 281 |  |  | 174 |  |  | (263 | )
Balance, end of year | $ | 18,992 |  |  | $ | 17,661 |  |  | $ | 16,718 |

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- Definition The entire disclosure for deferred policy acquisition costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 30 -URI http://asc.fasb.org/subtopic&trid=4737841 + Details
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