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Derivative Instrument Level 4 Non-qualifying Strategies for Hedge Accounting (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Maximum Aggregate Principal Amount of Junior Subordinated Notes | $ 500 |  |
Derivative, Notional Amount | 56,216 | $ 62,185 |
Derivative, Fair Value, Net | (1,001) | (926) |
Fair Value Hedging [Member] |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Derivative, Notional Amount | 0 | 23 |
Derivative, Fair Value, Net | 0 | 0 |
GMWB Hedging Instruments [Member] |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Derivative, Notional Amount | 10,256 | 10,979 |
Not Designated as Hedging Instrument [Member] |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Derivative, Gain (Loss) on Derivative, Net | (64) | (104) | $ (353)
Derivative, Notional Amount | 52,537 | 58,492 |
Derivative, Fair Value, Net | (907) | (924) |
Not Designated as Hedging Instrument [Member] | Fair Value Hedging [Member] |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Derivative, Gain (Loss) on Derivative, Net | (201) | (133) | (6)
Commodity Option [Member] | Not Designated as Hedging Instrument [Member] |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Derivative, Gain (Loss) on Derivative, Net | 0 | (9) | 0
Swap [Member] | Fair Value Hedging [Member] |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Derivative, Fair Value, Net | 100 | 131 |
Swap [Member] | GMWB Hedging Instruments [Member] |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Derivative, Notional Amount | 5,191 | 5,877 |
Equity Contract [Member] | Fair Value Hedging [Member] |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Derivative, Fair Value, Net | (27) | 2 |
Equity Contract [Member] | GMWB Hedging Instruments [Member] |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Derivative, Notional Amount | 1,362 | 1,362 |
Equity Contract [Member] | Not Designated as Hedging Instrument [Member] |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Derivative, Gain (Loss) on Derivative, Net | 15 | 19 | 3
Derivative, Notional Amount | 105 | 419 |
Derivative, Fair Value, Net | 0 | 15 |
Credit Default Swap, Selling Protection [Member] | Not Designated as Hedging Instrument [Member] |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Derivative, Notional Amount | 1,309 | 2,458 |
Derivative, Fair Value, Net | 10 | (13) |
Interest Rate Contract [Member] | Not Designated as Hedging Instrument [Member] |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Derivative, Gain (Loss) on Derivative, Net | (17) | (15) | (172)
Derivative, Notional Amount | 11,743 | 14,290 |
Derivative, Fair Value, Net | (890) | (814) |
GMWB Hedging Instruments [Member] | Fair Value Hedging [Member] |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Derivative, Fair Value, Net | 94 | 158 |
GMWB Hedging Instruments [Member] | Not Designated as Hedging Instrument [Member] |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Derivative, Gain (Loss) on Derivative, Net | (112) | (45) | 3
Derivative, Notional Amount | 10,256 | 10,979 |
Derivative, Fair Value, Net | 94 | 158 |
Interest Rate Swap [Member] |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Derivative, Notional Amount | 10,600 | 12,900 |
Interest Rate Swap [Member] | Fair Value Hedging [Member] |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Derivative, Fair Value, Net | 21 | 25 |
Interest Rate Swap [Member] | GMWB Hedging Instruments [Member] |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Derivative, Notional Amount | 3,703 | 3,740 |
Macro Hedge Program [Member] | Not Designated as Hedging Instrument [Member] |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Derivative, Gain (Loss) on Derivative, Net | (163) | (46) | (11)
Derivative, Notional Amount | 6,532 | 4,548 |
Derivative, Fair Value, Net | 178 | 147 |
Put Option [Member] |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Maximum Aggregate Principal Amount of Junior Subordinated Notes | 500 |  |
Put Option [Member] | Not Designated as Hedging Instrument [Member] |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Derivative, Gain (Loss) on Derivative, Net | (6) | (6) | (6)
Derivative, Notional Amount | 500 | 500 |
Derivative, Fair Value, Net | 1 | 7 |
Other Contract [Member] | Not Designated as Hedging Instrument [Member] |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Derivative, Gain (Loss) on Derivative, Net | (12) | 46 | (34)
Coinsurance and Modified Coinsurance Reinsurance Contracts [Member] |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Derivative, Fair Value, Net | 68 | 79 |
Coinsurance and Modified Coinsurance Reinsurance Contracts [Member] | Not Designated as Hedging Instrument [Member] |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Invested Assets Suppoting Modco | 875 | 895 |
Derivative, Notional Amount |  | 895 |
Foreign Exchange Contract [Member] | Not Designated as Hedging Instrument [Member] |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Derivative, Gain (Loss) on Derivative, Net | 140 | (3) | (142)
Fixed Annuity Hedging Instruments [Member] | Not Designated as Hedging Instrument [Member] |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Derivative, Gain (Loss) on Derivative, Net | 25 | (21) | (148)
Credit Default Swap, Buying Protection [Member] | Not Designated as Hedging Instrument [Member] |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Derivative, Notional Amount | 209 | 423 |
Derivative, Fair Value, Net | (4) | 18 |
GMWB Product Derivatives [Member] | Not Designated as Hedging Instrument [Member] |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Derivative, Gain (Loss) on Derivative, Net | 88 | (59) | (2)
Derivative, Notional Amount | 13,114 | 15,099 |
Derivative, Fair Value, Net | (241) | (262) |
GMWB Reinsurance [Member] | Not Designated as Hedging Instrument [Member] |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Derivative, Gain (Loss) on Derivative, Net | (14) | 17 | 4
Derivative, Notional Amount | 2,709 | 3,106 |
Derivative, Fair Value, Net | 73 | 83 |
Three Win Related Foreign Currency Swaps [Member] | Not Designated as Hedging Instrument [Member] |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Derivative, Notional Amount | 804 | 1,063 |
Derivative, Fair Value, Net | (263) | (357) |
Foreign Exchange Option [Member] | Not Designated as Hedging Instrument [Member] |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Derivative, Gain (Loss) on Derivative, Net | 0 | 0 | (2)
Other Credit Derivatives [Member] | Not Designated as Hedging Instrument [Member] |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Derivative, Gain (Loss) on Derivative, Net | (3) | 32 | (205)
Credit Default Swap, Selling Protection [Member] |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Derivative, Notional Amount | 2,968 | 4,487 |
Credit Default Swap, Selling Protection [Member] | Not Designated as Hedging Instrument [Member] |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Derivative, Gain (Loss) on Derivative, Net | 43 | (11) | 16
Credit Default Swap, Buying Protection [Member] | Not Designated as Hedging Instrument [Member] |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Derivative, Gain (Loss) on Derivative, Net | (26) | 8 | (10)
Currency Swap [Member] | Foreign Exchange Forward [Member] | Not Designated as Hedging Instrument [Member] |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Derivative, Gain (Loss) on Derivative, Net | $ 115 | $ 18 | $ 6

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