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Separate Accounts, Death Benefits and Other Insurance Benefit Features Level 4 (Details) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2016 | Sep. 30, 2016 | Sep. 30, 2015 | Dec. 31, 2015
Minimum Guarantees, Net Amount at Risk [Abstract] |  |  |  |
Net Amount at Risk by Product and Guarantee, General Account Value | $ 18,994,000,000 | $ 18,994,000,000 |  |
Net Amount at Risk by Product and Guarantee, Net Amount at Risk | 3,121,000,000 | 3,121,000,000 |  |
Separate Accounts, Liability | 118,648,000,000 | 118,648,000,000 |  | $ 120,123,000,000
Net Amount at Risk by Product and Guarantee, Separate Account Value | 80,758,000,000 | 80,758,000,000 |  |
Separate Accounts by Major Category of Investment [Abstract] |  |  |  |
Schedule of Fair Value of Separate Accounts by Major Category of Investment, Fair Value | $ 37,890,000,000 | $ 37,890,000,000 |  | $ 40,423,000,000
Invested in Fixed Income Securities | 16.00% | 16.00% |  | 17.00%
Invested in Equity Securities | 84.00% | 84.00% |  | 83.00%
MAV Only [Member] |  |  |  |
Minimum Guarantees, Net Amount at Risk [Abstract] |  |  |  |
Net Amount at Risk by Product and Guarantee, General Account Value | $ 13,815,000,000 | $ 13,815,000,000 |  |
Net Amount at Risk by Product and Guarantee, Weighted Average Attained Age |  | 71 years |  |
With Five Percent Rollup [Member] |  |  |  |
Minimum Guarantees, Net Amount at Risk [Abstract] |  |  |  |
Net Amount at Risk by Product and Guarantee, General Account Value | 1,188,000,000 | $ 1,188,000,000 |  |
Net Amount at Risk by Product and Guarantee, Weighted Average Attained Age |  | 71 years |  |
With Earnings Protection Benefit Rider (EPB) [Member] |  |  |  |
Minimum Guarantees, Net Amount at Risk [Abstract] |  |  |  |
Net Amount at Risk by Product and Guarantee, General Account Value | 3,516,000,000 | $ 3,516,000,000 |  |
Net Amount at Risk by Product and Guarantee, Weighted Average Attained Age |  | 70 years |  |
With Five Percent Rollup and EPB [Member] |  |  |  |
Minimum Guarantees, Net Amount at Risk [Abstract] |  |  |  |
Net Amount at Risk by Product and Guarantee, General Account Value | 475,000,000 | $ 475,000,000 |  |
Net Amount at Risk by Product and Guarantee, Weighted Average Attained Age |  | 73 years |  |
Asset Protection Benefit [Member] |  |  |  |
Minimum Guarantees, Net Amount at Risk [Abstract] |  |  |  |
Net Amount at Risk by Product and Guarantee, General Account Value | 10,766,000,000 | $ 10,766,000,000 |  |
Net Amount at Risk by Product and Guarantee, Weighted Average Attained Age |  | 69 years |  |
Lifetime Income Benefit [Member] |  |  |  |
Minimum Guarantees, Net Amount at Risk [Abstract] |  |  |  |
Net Amount at Risk by Product and Guarantee, General Account Value | 480,000,000 | $ 480,000,000 |  |
Net Amount at Risk by Product and Guarantee, Weighted Average Attained Age |  | 69 years |  |
Reset [Member] |  |  |  |
Minimum Guarantees, Net Amount at Risk [Abstract] |  |  |  |
Net Amount at Risk by Product and Guarantee, General Account Value | 2,457,000,000 | $ 2,457,000,000 |  |
Net Amount at Risk by Product and Guarantee, Weighted Average Attained Age |  | 70 years |  |
Return of Net Deposit [Member] |  |  |  |
Minimum Guarantees, Net Amount at Risk [Abstract] |  |  |  |
Net Amount at Risk by Product and Guarantee, General Account Value | 8,999,000,000 | $ 8,999,000,000 |  |
Net Amount at Risk by Product and Guarantee, Weighted Average Attained Age |  | 68 years |  |
Annuitization Benefit [Member] |  |  |  |
Minimum Guarantees, Net Amount at Risk [Abstract] |  |  |  |
Net Amount at Risk by Product and Guarantee, Net Amount at Risk | 518,000,000 | $ 518,000,000 |  |
Guaranteed Minimum Death Benefit [Member] |  |  |  |
Movement in Changes in the gross U.S. GMDB, International GMDB/GMIB, and UL Secondary Guarantee Benefits [Roll Forward] |  |  |  |
Liability, balance as of January 1 |  | 863,000,000 | $ 812,000,000 |
Incurred |  | 50,000,000 | 76,000,000 |
Liabilities for Guarantees on Long-Duration Contracts, Benefits Paid |  | (92,000,000) | (83,000,000) |
Liability balance as of September 30 | 821,000,000 | 821,000,000 | 805,000,000 |
Reinsurance recoverable asset, as of January 1 |  | 523,000,000 | 481,000,000 |
Incurred | 40,000,000 | 40,000,000 | 89,000,000 |
Paid | (73,000,000) | (73,000,000) | (66,000,000) |
Reinsurance recoverable asset, as of September 30 | 490,000,000 | 490,000,000 | 504,000,000 |
Minimum Guarantees, Net Amount at Risk [Abstract] |  |  |  |
Net Amount at Risk by Product and Guarantee, General Account Value | 3,806,000,000 | $ 3,806,000,000 |  |
Net Amount at Risk by Product and Guarantee, Weighted Average Attained Age |  | 70 years |  |
Separate Accounts, Liability | 37,890,000,000 | $ 37,890,000,000 |  |
Guaranteed Minimum Withdrawal Benefit [Member] |  |  |  |
Minimum Guarantees, Net Amount at Risk [Abstract] |  |  |  |
Net Amount at Risk by Product and Guarantee, General Account Value | 6,600,000,000 | 6,600,000,000 |  |
Net Amount at Risk by Product and Guarantee, Net Amount at Risk | $ 0 | 0 |  |
Net Amount at Risk by Product and Guarantee, Weighted Average Attained Age | 72 years |  |  |
Variable Annuity [Member] | Guaranteed Minimum Death Benefit [Member] |  |  |  |
Minimum Guarantees, Net Amount at Risk [Abstract] |  |  |  |
Net Amount at Risk by Product and Guarantee, General Account Value | $ 41,696,000,000 | 41,696,000,000 |  |
Universal Life [Member] | Secondary Guarantees [Member] |  |  |  |
Movement in Changes in the gross U.S. GMDB, International GMDB/GMIB, and UL Secondary Guarantee Benefits [Roll Forward] |  |  |  |
Liability, balance as of January 1 |  | 2,313,000,000 | 2,041,000,000 |
Incurred |  | 234,000,000 | 203,000,000 |
Liability balance as of September 30 | 2,547,000,000 | 2,547,000,000 | 2,244,000,000 |
Reinsurance recoverable asset, as of January 1 |  | 2,313,000,000 | 2,041,000,000 |
Incurred | 234,000,000 | 234,000,000 | 203,000,000 |
Reinsurance recoverable asset, as of September 30 | 2,547,000,000 | 2,547,000,000 | $ 2,244,000,000 |
MAV Only [Member] |  |  |  |
Minimum Guarantees, Net Amount at Risk [Abstract] |  |  |  |
Net Amount at Risk by Product and Guarantee, Net Amount at Risk | 2,353,000,000 | 2,353,000,000 |  |
MAV Only [Member] | Annuitization Benefit [Member] |  |  |  |
Minimum Guarantees, Net Amount at Risk [Abstract] |  |  |  |
Net Amount at Risk by Product and Guarantee, Net Amount at Risk | 359,000,000 | 359,000,000 |  |
With Five Percent Rollup [Member] |  |  |  |
Minimum Guarantees, Net Amount at Risk [Abstract] |  |  |  |
Net Amount at Risk by Product and Guarantee, Net Amount at Risk | 192,000,000 | 192,000,000 |  |
With Five Percent Rollup [Member] | Annuitization Benefit [Member] |  |  |  |
Minimum Guarantees, Net Amount at Risk [Abstract] |  |  |  |
Net Amount at Risk by Product and Guarantee, Net Amount at Risk | 61,000,000 | 61,000,000 |  |
With Earnings Protection Benefit Rider (EPB) [Member] |  |  |  |
Minimum Guarantees, Net Amount at Risk [Abstract] |  |  |  |
Net Amount at Risk by Product and Guarantee, Net Amount at Risk | 472,000,000 | 472,000,000 |  |
With Earnings Protection Benefit Rider (EPB) [Member] | Annuitization Benefit [Member] |  |  |  |
Minimum Guarantees, Net Amount at Risk [Abstract] |  |  |  |
Net Amount at Risk by Product and Guarantee, Net Amount at Risk | 75,000,000 | 75,000,000 |  |
With Five Percent Rollup and EPB [Member] |  |  |  |
Minimum Guarantees, Net Amount at Risk [Abstract] |  |  |  |
Net Amount at Risk by Product and Guarantee, Net Amount at Risk | 104,000,000 | 104,000,000 |  |
With Five Percent Rollup and EPB [Member] | Annuitization Benefit [Member] |  |  |  |
Minimum Guarantees, Net Amount at Risk [Abstract] |  |  |  |
Net Amount at Risk by Product and Guarantee, Net Amount at Risk | 23,000,000 | 23,000,000 |  |
Asset Protection Benefit [Member] |  |  |  |
Minimum Guarantees, Net Amount at Risk [Abstract] |  |  |  |
Net Amount at Risk by Product and Guarantee, Net Amount at Risk | 197,000,000 | 197,000,000 |  |
Asset Protection Benefit [Member] | Annuitization Benefit [Member] |  |  |  |
Minimum Guarantees, Net Amount at Risk [Abstract] |  |  |  |
Net Amount at Risk by Product and Guarantee, Net Amount at Risk | 131,000,000 | 131,000,000 |  |
Lifetime Income Benefit [Member] |  |  |  |
Minimum Guarantees, Net Amount at Risk [Abstract] |  |  |  |
Net Amount at Risk by Product and Guarantee, Net Amount at Risk | 6,000,000 | 6,000,000 |  |
Lifetime Income Benefit [Member] | Annuitization Benefit [Member] |  |  |  |
Minimum Guarantees, Net Amount at Risk [Abstract] |  |  |  |
Net Amount at Risk by Product and Guarantee, Net Amount at Risk | 6,000,000 | 6,000,000 |  |
Reset [Member] |  |  |  |
Minimum Guarantees, Net Amount at Risk [Abstract] |  |  |  |
Net Amount at Risk by Product and Guarantee, Net Amount at Risk | 15,000,000 | 15,000,000 |  |
Reset [Member] | Annuitization Benefit [Member] |  |  |  |
Minimum Guarantees, Net Amount at Risk [Abstract] |  |  |  |
Net Amount at Risk by Product and Guarantee, Net Amount at Risk | 14,000,000 | 14,000,000 |  |
Return of Net Deposit [Member] |  |  |  |
Minimum Guarantees, Net Amount at Risk [Abstract] |  |  |  |
Net Amount at Risk by Product and Guarantee, Net Amount at Risk | 65,000,000 | 65,000,000 |  |
Return of Net Deposit [Member] | Annuitization Benefit [Member] |  |  |  |
Minimum Guarantees, Net Amount at Risk [Abstract] |  |  |  |
Net Amount at Risk by Product and Guarantee, Net Amount at Risk | 61,000,000 | 61,000,000 |  |
Guaranteed Minimum Death Benefit [Member] |  |  |  |
Minimum Guarantees, Net Amount at Risk [Abstract] |  |  |  |
Net Amount at Risk by Product and Guarantee, Net Amount at Risk | 3,404,000,000 | 3,404,000,000 |  |
Guaranteed Minimum Death Benefit [Member] | Annuitization Benefit [Member] |  |  |  |
Minimum Guarantees, Net Amount at Risk [Abstract] |  |  |  |
Net Amount at Risk by Product and Guarantee, Net Amount at Risk | 730,000,000 | 730,000,000 |  |
Equity Securities [Member] |  |  |  |
Separate Accounts by Major Category of Investment [Abstract] |  |  |  |
Schedule of Fair Value of Separate Accounts by Major Category of Investment, Fair Value | 34,772,000,000 | 34,772,000,000 |  | $ 36,970,000,000
Cash and Cash Equivalents [Member] |  |  |  |
Separate Accounts by Major Category of Investment [Abstract] |  |  |  |
Schedule of Fair Value of Separate Accounts by Major Category of Investment, Fair Value | $ 3,118,000,000 | $ 3,118,000,000 |  | $ 3,453,000,000

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