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Realized (Gain) Loss (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
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Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016
Details underlying realized gain (loss) |  |  |  |  |
Total realized gain (loss) related to certain investments | [1] | $ (18) | $ (65) | $ (31) | $ (172)
Realized gain (loss) on the mark-to-market on certain instruments | [2] | (5) | (8) | 5 |
Indexed annuity and IUL contracts net derivatives results: |  |  |  |  |
Gross gain (loss) | [3] | (7) | (9) | (17) | (33)
Associated amortization of DAC, VOBA, DSI, and DFEL | [3] | 2 | 4 | 1 | 6
Variable annuity net derivatives results: |  |  |  |  |
Gross gain (loss) | [4] | 23 | 37 | (5) | 48
Associated amortization of DAC, VOBA, DSI, and DFEL | [4] | (5) | (4) | (2) | (8)
Total realized gain (loss) |  | $ (10) | $ (45) | $ (49) | $ (159)
[1] | See "Realized Gain (Loss) Related to Certain Investments" section in Note 4.
[2] | Represents changes in the fair values of certain derivative investments (not including those associated with our variable and indexed annuity and IUL contracts net derivatives results), reinsurance related embedded derivatives and trading securities.
[3] | Represents the net difference between the change in the fair value of the S&P 500 Index ® call options that we hold and the change in the fair value of the embedded derivative liabilities of our indexed annuity and IUL contracts along with changes in the fair value of embedded derivative liabilities related to index call options we may purchase in the future to hedge contract holder index allocations applicable to future reset periods for our indexed annuity products.
[4] | Includes the net difference in the change in embedded derivative reserves of our GLB riders and the change in the fair value of the derivative instruments we own to hedge the change in embedded derivative reserves on our GLB riders and the benefit ratio unlocking on our GLB and GDB riders, including the cost of purchasing the hedging instruments.

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- Definition Disclosure in tabular form of the details underlying realized gain (loss) on our Consolidated Statements of Income. + References No definition available. + Details
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- Definition Amortization income (expense) of deferred acquisition costs, value of business acquired, deferred sales inducements and deferred front-end loads associated with gross gains (losses) on indexed annuity and universal life net derivative results. + References No definition available. + Details
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- Definition Represents the net difference between the change in the fair value of the S&P 500 call options that we hold and the change in the fair value of the embedded derivative liabilities of our indexed annuity and universal life products along with changes in the fair value of embedded derivative liabilities related to index call options we may purchase in the future to hedge contract holder index allocations applicable to future reset periods for our indexed annuity products. + References No definition available. + Details
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- Definition Indexed annuity and universal life net derivative results + References No definition available. + Details
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- Definition This item represents the net total realized and unrealized gain (loss) included in earnings for the period as a result of selling or holding marketable securities categorized as trading, available-for-sale, or held-to-maturity, including the unrealized holding gain (loss) of held-to-maturity securities transferred to the trading security category and the cumulative unrealized gain (loss) which was included in other comprehensive income (a separate component of shareholders' equity) for available-for-sale securities transferred to trading securities during the period. Additionally, this item would include any gains (losses) realized during the period from the sale of investments accounted for under the cost method of accounting, losses recognized for other than temporary impairments (OTTI) of the subject investments, derivatives and embedded derivatives gains and losses and gains and losses from reinsurance embedded derivatives. + References No definition available. + Details
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- Definition Represents changes in the fair values of certain derivative instruments (including those associated with consolidated variable interest entities), total return swaps (embedded derivatives that are theoretically included in various assets and liabilities assoicated with these arrangements) and trading securities. + References No definition available. + Details
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- Definition This item represents the net realized gain (loss) included in earnings for the period related to certain investments. + References No definition available. + Details
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- Definition Variable annuity net derivatives results: + References No definition available. + Details
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- Definition Amortization income (expense) of deferred acquisition costs, value of business acquired, deferred sales inducements and deferred front-end loads associated with gross gains (losses) on variable annuity net derivatives results. + References No definition available. + Details
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- Definition Includes the net difference in the change in embedded derivative reserves of guaranteed living benefit products and the change in the fair value of the derivative instruments that hedge guaranteed death benefit and guaranteed living benefit products, including the cost of purchasing the hedging instruments. + References No definition available. + Details
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