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Investments (Schedule Of Realized Gain (Loss)) (Details) - USD ($) $ in Millions | 3 Months Ended
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Mar. 31, 2019 | Mar. 31, 2018
Realized gain (loss) related to certain investments |  |  |
AFS securities. Gross OTTI |  | $ 8 | $ 2
Gain (loss) on other investments | [1] | 5 | 2
Associated amortization of DAC, VOBA, DSI and DFEL and changes in other contract holder funds |  | (2) | (5)
Total realized gain (loss) related to certain investments |  | (20) | (21)
Realized gain (loss) on the mark-to-market on certain instruments | [2] | (121) | 1
Indexed annuity and IUL contracts net derivatives results: |  |  |
Gross gain (loss) | [3] | (35) | (1)
Associated amortization of DAC, VOBA, DSI, and DFEL | [3] | 1 |
Variable annuity net derivatives results: |  |  |
Gross gain (loss) | [4] | (215) | 33
Associated amortization of DAC, VOBA, DSI, and DFEL | [4] | 28 |
Total realized gain (loss) |  | (362) | 12
Fixed Maturity AFS Securities [Member] |  |  |
Realized gain (loss) related to certain investments |  |  |
AFS securities. Gross gains |  | 12 | 14
AFS securities. Gross losses |  | (27) | (30)
AFS securities. Gross OTTI |  | (8) | (2)
Equity Securities [Member] |  |  |
Realized gain (loss) related to certain investments |  |  |
Gain (loss) on other investments |  | $ 6 | $ 1
[1] | Includes market adjustments on equity securities still held of $6 million and less than $1 million for the three months ended March 31, 2019 and 2018, respectively.
[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 derivative results), reinsurance related embedded derivatives and trading securities. See Note 8 for information regarding modified coinsurance.
[3] | Represents the net difference between the change in the fair value of the S&P 500 Index® (“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 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 guaranteed living benefit ("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 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 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 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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- Definition The amount of other than temporary impairment losses on investments in debt and equity securities categorized as Available-for-sale which have been recognized in earnings during the period. Such impairment losses consist of other than temporary impairments (OTTI) on equity securities, credit losses on investments in debt securities, and when the entity intends to sell an impaired debt security or it is more likely than not that the entity will be required to sell the impaired debt security before recovery of its amortized cost basis. + References No definition available. + Details
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