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Derivative Instruments (Gains (Losses) On Derivative Instruments Recorded Within Income (Loss) From Continuing Operations) (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2017 | Mar. 31, 2016
Gains (losses) |  |  |
Gains (losses) |  | $ (69) | $ (382)
Designated as Hedging Instrument [Member] | Cash flow hedges |  |  |
Gains (losses) |  |  |
Gains (losses) |  | 7 | 7
Designated as Hedging Instrument [Member] | Fair value hedges |  |  |
Gains (losses) |  |  |
Gains (losses) |  | 9 | (53)
Designated as Hedging Instrument [Member] | Net Investment Income [Member] | Cash flow hedges | Interest rate contracts [Member] |  |  |
Gains (losses) |  |  |
Gains (losses) | [1] | 2 | 1
Designated as Hedging Instrument [Member] | Net Investment Income [Member] | Cash flow hedges | Foreign currency contracts [Member] |  |  |
Gains (losses) |  |  |
Gains (losses) | [1] | 4 | 2
Designated as Hedging Instrument [Member] | Net Investment Income [Member] | Fair value hedges | Interest rate contracts [Member] |  |  |
Gains (losses) |  |  |
Gains (losses) | [1] | (7) | (8)
Designated as Hedging Instrument [Member] | Interest and Debt Expense [Member] | Cash flow hedges | Interest rate contracts [Member] |  |  |
Gains (losses) |  |  |
Gains (losses) | [2] | (4) |
Designated as Hedging Instrument [Member] | Interest and Debt Expense [Member] | Fair value hedges | Interest rate contracts [Member] |  |  |
Gains (losses) |  |  |
Gains (losses) | [2] | 8 | 8
Designated as Hedging Instrument [Member] | Realized Gain (Loss) [Member] | Cash flow hedges | Foreign currency contracts [Member] |  |  |
Gains (losses) |  |  |
Gains (losses) | [3] | 5 | 4
Designated as Hedging Instrument [Member] | Realized Gain (Loss) [Member] | Fair value hedges | Interest rate contracts [Member] |  |  |
Gains (losses) |  |  |
Gains (losses) | [3] | 8 | (53)
Derivative Instruments Not Designated and Not Qualifying as Hedging Instruments | Realized Gain (Loss) [Member] | Interest rate contracts [Member] |  |  |
Gains (losses) |  |  |
Gains (losses) | [3] | (50) | 975
Derivative Instruments Not Designated and Not Qualifying as Hedging Instruments | Realized Gain (Loss) [Member] | Foreign currency contracts [Member] |  |  |
Gains (losses) |  |  |
Gains (losses) | [3] | 3 | 4
Derivative Instruments Not Designated and Not Qualifying as Hedging Instruments | Realized Gain (Loss) [Member] | Equity market contracts [Member] |  |  |
Gains (losses) |  |  |
Gains (losses) | [3] | (528) | (330)
Derivative Instruments Not Designated and Not Qualifying as Hedging Instruments | Realized Gain (Loss) [Member] | Credit contracts [Member] |  |  |
Gains (losses) |  |  |
Gains (losses) | [3] |  | (3)
Derivative Instruments Not Designated and Not Qualifying as Hedging Instruments | Realized Gain (Loss) [Member] | Embedded derivatives - GLB [Member] |  |  |
Gains (losses) |  |  |
Gains (losses) | [3] | 597 | (963)
Derivative Instruments Not Designated and Not Qualifying as Hedging Instruments | Realized Gain (Loss) [Member] | Embedded derivatives - Reinsurance related [Member] |  |  |
Gains (losses) |  |  |
Gains (losses) | [3] | 3 | (24)
Derivative Instruments Not Designated and Not Qualifying as Hedging Instruments | Realized Gain (Loss) [Member] | Indexed annuity and IUL contracts embedded derivatives [Member] |  |  |
Gains (losses) |  |  |
Gains (losses) | [3] | (120) | 6
Derivative Instruments Not Designated and Not Qualifying as Hedging Instruments | Commissions and other expenses [Member] | Equity market contracts [Member] |  |  |
Gains (losses) |  |  |
Gains (losses) | [4] | $ 10 | $ (1)
[1] | Reported in net investment income on our Consolidated Statements of Comprehensive Income (Loss).
[2] | Reported in interest and debt expense on our Consolidated Statements of Comprehensive Income (Loss).
[3] | Reported in realized gain (loss) on our Consolidated Statements of Comprehensive Income (Loss).
[4] | Reported in commissions and other expenses on our Consolidated Statements of Comprehensive Income (Loss).

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- References No definition available. + Details
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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5618551-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (a),(c),(d),(e) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624171-113959 + Details
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