Separate Accounts, Death Benefits and Other Insurance Benefit Features Level 4 (Details) - USD ($) $ in Millions	9 Months Ended
	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
Net Amount at Risk by Product and Guarantee, Net Amount at Risk	3,121
Net Amount at Risk by Product and Guarantee, Separate Account Value	80,758
Separate Accounts, Liability	118,648		$ 120,111
Schedule of Fair Value of Separate Accounts [Abstract]
Schedule of Fair Value of Separate Accounts by Major Category of Investment, Fair Value	$ 37,890		$ 40,423
Invested in Fixed Income Securities	16.00%		17.00%
Invested in Equity Securities	84.00%		83.00%
Equity Securities [Member]
Schedule of Fair Value of Separate Accounts [Abstract]
Schedule of Fair Value of Separate Accounts by Major Category of Investment, Fair Value	$ 34,772		$ 36,970
Cash and Cash Equivalents [Member]
Schedule of Fair Value of Separate Accounts [Abstract]
Schedule of Fair Value of Separate Accounts by Major Category of Investment, Fair Value	3,118		$ 3,453
Guaranteed Lifetime Withdrawal Benefit [Member]
Minimum Guarantees, Net Amount at Risk [Abstract]
Net Amount at Risk by Product and Guarantee, General Account Value	6,600
Secondary Guarantees [Member] | Universal Life [Member]
Changes in the gross U.S. GMDB and UL secondary guarantee benefits
Liability, balance, beginning of period	2,313	$ 2,041
Incurred	234	203
Paid	0
Liability balance, end of period	2,547	2,244
Reinsurance recoverable asset, beginning of period	2,313	2,041
Reinsurance Recoverables on Unpaid Losses	234	203
Reinsurance Recoverables on Paid Losses	0
Reinsurance recoverable asset, end of period	2,547	2,244
Annuitization Benefit [Member]
Minimum Guarantees, Net Amount at Risk [Abstract]
Net Amount at Risk by Product and Guarantee, Net Amount at Risk	518
Guaranteed Minimum Death Benefit [Member]
Changes in the gross U.S. GMDB and UL secondary guarantee benefits
Liability, balance, beginning of period	863	812
Incurred	50	76
Paid	(92)	(83)
Liability balance, end of period	821	805
Reinsurance recoverable asset, beginning of period	523	480
Reinsurance Recoverables on Unpaid Losses	40	90
Reinsurance Recoverables on Paid Losses	73	66
Reinsurance recoverable asset, end of period	490	$ 504
Minimum Guarantees, Net Amount at Risk [Abstract]
Net Amount at Risk by Product and Guarantee, General Account Value	$ 3,806
Net Amount at Risk by Product and Guarantee, Weighted Average Attained Age	70 years
Separate Accounts, Liability	$ 37,890
Guaranteed Minimum Death Benefit [Member] | Variable Annuity [Member]
Minimum Guarantees, Net Amount at Risk [Abstract]
Net Amount at Risk by Product and Guarantee, General Account Value	41,696
Reset [Member]
Minimum Guarantees, Net Amount at Risk [Abstract]
Net Amount at Risk by Product and Guarantee, General Account Value	$ 2,457
Net Amount at Risk by Product and Guarantee, Weighted Average Attained Age	70 years
Lifetime Income Benefit ("LIB") - Death Benefit [Member]
Minimum Guarantees, Net Amount at Risk [Abstract]
Net Amount at Risk by Product and Guarantee, General Account Value	$ 480
Net Amount at Risk by Product and Guarantee, Weighted Average Attained Age	69 years
Asset Protection Benefit ("APB") [Member]
Minimum Guarantees, Net Amount at Risk [Abstract]
Net Amount at Risk by Product and Guarantee, General Account Value	$ 10,766
Net Amount at Risk by Product and Guarantee, Weighted Average Attained Age	69 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
Net Amount at Risk by Product and Guarantee, Weighted Average Attained Age	73 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
Net Amount at Risk by Product and Guarantee, Weighted Average Attained Age	70 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
Net Amount at Risk by Product and Guarantee, Weighted Average Attained Age	71 years
MAV Only [Member]
Minimum Guarantees, Net Amount at Risk [Abstract]
Net Amount at Risk by Product and Guarantee, General Account Value	$ 13,815
Net Amount at Risk by Product and Guarantee, Weighted Average Attained Age	71 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
Net Amount at Risk by Product and Guarantee, Weighted Average Attained Age	68 years
Guaranteed Minimum Withdrawal Benefit [Member]
Minimum Guarantees, Net Amount at Risk [Abstract]
Net Amount at Risk by Product and Guarantee, Net Amount at Risk	$ 0
Net Amount at Risk by Product and Guarantee, Weighted Average Attained Age	72 years
MAV Only [Member]
Minimum Guarantees, Net Amount at Risk [Abstract]
Net Amount at Risk by Product and Guarantee, Net Amount at Risk	$ 2,353
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
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
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
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
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
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
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
Asset Protection Benefit ("APB") [Member]
Minimum Guarantees, Net Amount at Risk [Abstract]
Net Amount at Risk by Product and Guarantee, Net Amount at Risk	197
Asset Protection Benefit ("APB") [Member] | Annuitization Benefit [Member]
Minimum Guarantees, Net Amount at Risk [Abstract]
Net Amount at Risk by Product and Guarantee, Net Amount at Risk	131
Lifetime Income Benefit ("LIB") - Death Benefit [Member]
Minimum Guarantees, Net Amount at Risk [Abstract]
Net Amount at Risk by Product and Guarantee, Net Amount at Risk	6
Lifetime Income Benefit ("LIB") - 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	6
Reset [Member]
Minimum Guarantees, Net Amount at Risk [Abstract]
Net Amount at Risk by Product and Guarantee, Net Amount at Risk	15
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
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
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
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
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