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Derivative Instruments (Gains (Losses) On Derivative Instruments Recorded Within Income (Loss) From Continuing Operations) (Details) $ in Millions | 3 Months Ended
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Mar. 31, 2018 USD ($)
Gains (losses) |  |
Gains (losses) | $ (37) |
Designated as Hedging Instrument [Member] | Cash Flow Hedges [Member] |  |
Gains (losses) |  |
Gains (losses) | 3 |
Designated as Hedging Instrument [Member] | Fair Value Hedges [Member] |  |
Gains (losses) |  |
Gains (losses) | 35 |
Designated as Hedging Instrument [Member] | Net Investment Income [Member] | Cash Flow Hedges [Member] | Interest rate contracts [Member] |  |
Gains (losses) |  |
Gains (losses) | 1 | [1]
Designated as Hedging Instrument [Member] | Net Investment Income [Member] | Cash Flow Hedges [Member] | Foreign currency contracts [Member] |  |
Gains (losses) |  |
Gains (losses) | 5 | [1]
Designated as Hedging Instrument [Member] | Net Investment Income [Member] | Fair Value Hedges [Member] | Interest rate contracts [Member] |  |
Gains (losses) |  |
Gains (losses) | (4) | [1]
Designated as Hedging Instrument [Member] | Interest and Debt Expense [Member] | Cash Flow Hedges [Member] | Interest rate contracts [Member] |  |
Gains (losses) |  |
Gains (losses) | (3) | [2]
Designated as Hedging Instrument [Member] | Interest and Debt Expense [Member] | Fair Value Hedges [Member] | Interest rate contracts [Member] |  |
Gains (losses) |  |
Gains (losses) | 6 | [2]
Designated as Hedging Instrument [Member] | Realized Gain (Loss) [Member] | Fair Value Hedges [Member] | Interest rate contracts [Member] |  |
Gains (losses) |  |
Gains (losses) | 33 | [3]
Derivative Instruments Not Designated and Not Qualifying as Hedging Instruments [Member] | Realized Gain (Loss) [Member] | Interest rate contracts [Member] |  |
Gains (losses) |  |
Gains (losses) | (314) | [3]
Derivative Instruments Not Designated and Not Qualifying as Hedging Instruments [Member] | Realized Gain (Loss) [Member] | Foreign currency contracts [Member] |  |
Gains (losses) |  |
Gains (losses) | 2 | [3]
Derivative Instruments Not Designated and Not Qualifying as Hedging Instruments [Member] | Realized Gain (Loss) [Member] | Equity market contracts [Member] |  |
Gains (losses) |  |
Gains (losses) | 7 | [3]
Derivative Instruments Not Designated and Not Qualifying as Hedging Instruments [Member] | Realized Gain (Loss) [Member] | GLB Embedded Derivatives [Member] |  |
Gains (losses) |  |
Gains (losses) | 157 | [3]
Derivative Instruments Not Designated and Not Qualifying as Hedging Instruments [Member] | Realized Gain (Loss) [Member] | Embedded derivatives - Reinsurance related [Member] |  |
Gains (losses) |  |
Gains (losses) | 23 | [3]
Derivative Instruments Not Designated and Not Qualifying as Hedging Instruments [Member] | Realized Gain (Loss) [Member] | Indexed Annuity And IUL Contracts [Member] |  |
Gains (losses) |  |
Gains (losses) | 52 | [3]
Derivative Instruments Not Designated and Not Qualifying as Hedging Instruments [Member] | Commissions and other expenses [Member] | Equity market contracts [Member] |  |
Gains (losses) |  |
Gains (losses) | $ (2) | [4]
[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/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5618551-113959 + Details
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