Separate Accounts, Death Benefits, and Other Insurance Benefits Level 4 (Details) (USD $)	12 Months Ended			3 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Sep. 30, 2013
Movement in Changes in U.S. GMDB/GMWB, International GMDB/GMIB, and UL Secondary Guarantee Benefits [Roll Forward]
Deferred Policy Acquisition Cost, Amortization Expense, Effect of Adjustments to Estimated Gross Profit	$ 136,000,000	$ 1,086,000,000	$ 144,000,000
Deferred Policy Acquisition Cost, Foreign Currency Translation Adjustment	0	(86,000,000)	(118,000,000)
Account Value by GMDB Type [Abstract]
Net Amount at Risk by Product and Guarantee, General Account Value	23,775,000,000
Net Amount at Risk by Product and Guarantee, Net Amount at Risk	3,493,000,000
Net Amount at Risk by Product and Guarantee, Net Amount at Risk at Annuitization	563,000,000
Separate Accounts, Liability	134,702,000,000	140,886,000,000		140,886,000,000
Schedule of Fair Value of Separate Accounts [Abstract]
Schedule of Fair Value of Separate Accounts by Major Category of Investment, Fair Value	48,852,000,000	57,463,000,000		57,463,000,000
Invested in Fixed Income Securities	17.00%
Invested in Equity Securities	83.00%
Return of Premium ROP Other [Member]
Account Value by GMDB Type [Abstract]
Net Amount at Risk by Product and Guarantee, General Account Value	10,243,000,000
Net Amount at Risk by Product and Guarantee, Net Amount at Risk	57,000,000
Net Amount at Risk by Product and Guarantee, Net Amount at Risk at Annuitization	50,000,000
Net Amount at Risk by Product and Guarantee, Weighted Average Attained Age	68 years
Reset [Member]
Account Value by GMDB Type [Abstract]
Net Amount at Risk by Product and Guarantee, General Account Value	3,036,000,000
Net Amount at Risk by Product and Guarantee, Net Amount at Risk	22,000,000
Net Amount at Risk by Product and Guarantee, Net Amount at Risk at Annuitization	22,000,000
Net Amount at Risk by Product and Guarantee, Weighted Average Attained Age	69 years
Lifetime Income Benefit ("LIB") - Death Benefit [Member]
Account Value by GMDB Type [Abstract]
Net Amount at Risk by Product and Guarantee, General Account Value	624,000,000
Net Amount at Risk by Product and Guarantee, Net Amount at Risk	7,000,000
Net Amount at Risk by Product and Guarantee, Net Amount at Risk at Annuitization	7,000,000
Net Amount at Risk by Product and Guarantee, Weighted Average Attained Age	68 years
Asset Protection Benefit ("APB") [Member]
Account Value by GMDB Type [Abstract]
Net Amount at Risk by Product and Guarantee, General Account Value	15,183,000,000
Net Amount at Risk by Product and Guarantee, Net Amount at Risk	228,000,000
Net Amount at Risk by Product and Guarantee, Net Amount at Risk at Annuitization	151,000,000
Net Amount at Risk by Product and Guarantee, Weighted Average Attained Age	68 years
With Five Percent Rollup and EPB [Member]
Account Value by GMDB Type [Abstract]
Net Amount at Risk by Product and Guarantee, General Account Value	547,000,000
Net Amount at Risk by Product and Guarantee, Net Amount at Risk	115,000,000
Net Amount at Risk by Product and Guarantee, Net Amount at Risk at Annuitization	25,000,000
Net Amount at Risk by Product and Guarantee, Weighted Average Attained Age	71 years
With Earnings Protection Benefit Rider (EPB) [Member]
Account Value by GMDB Type [Abstract]
Net Amount at Risk by Product and Guarantee, General Account Value	4,342,000,000
Net Amount at Risk by Product and Guarantee, Net Amount at Risk	579,000,000
Net Amount at Risk by Product and Guarantee, Net Amount at Risk at Annuitization	83,000,000
Net Amount at Risk by Product and Guarantee, Weighted Average Attained Age	68 years
With Five Percent Rollup [Member]
Account Value by GMDB Type [Abstract]
Net Amount at Risk by Product and Guarantee, General Account Value	1,451,000,000
Net Amount at Risk by Product and Guarantee, Net Amount at Risk	209,000,000
Net Amount at Risk by Product and Guarantee, Net Amount at Risk at Annuitization	59,000,000
Net Amount at Risk by Product and Guarantee, Weighted Average Attained Age	70 years
MAV Only [Member]
Account Value by GMDB Type [Abstract]
Net Amount at Risk by Product and Guarantee, General Account Value	17,435,000,000
Net Amount at Risk by Product and Guarantee, Net Amount at Risk	2,590,000,000
Net Amount at Risk by Product and Guarantee, Net Amount at Risk at Annuitization	396,000,000
Net Amount at Risk by Product and Guarantee, Weighted Average Attained Age	70 years
Guaranteed Minimum Death Benefit [Member]
Account Value by GMDB Type [Abstract]
Net Amount at Risk by Product and Guarantee, General Account Value	4,009,000,000
Universal Life [Member] | GMDB GMIB [Member]
Movement in Changes in U.S. GMDB/GMWB, International GMDB/GMIB, and UL Secondary Guarantee Benefits [Roll Forward]
Liabilities for Guarantees on Long Duration Contracts, Business Disposition Impact	0	1,145,000,000
reinsurance recoverable asset impact of business disposition	0			1,485,000,000
Universal Life [Member] | Secondary Guarantees [Member]
Movement in Changes in U.S. GMDB/GMWB, International GMDB/GMIB, and UL Secondary Guarantee Benefits [Roll Forward]
Liabilities, as of Jan. 1	1,802,000,000	363,000,000			1,802,000,000
Liabilities for Guarantees on Long-Duration Contracts, Incurred Benefits	236,000,000	292,000,000
Deferred Policy Acquisition Cost, Amortization Expense, Effect of Adjustments to Estimated Gross Profit	3,000,000	2,000,000
Liabilities, as of Dec. 31	2,041,000,000	1,802,000,000		1,802,000,000	1,802,000,000
Reinsurance Recoverable, as of Jan. 1	1,802,000,000	21,000,000			1,802,000,000
Reinsurance Recoverable Asset Incurred	239,000,000	296,000,000
Reinsurance Recoverable, as of Dec. 31	2,041,000,000	1,802,000,000		1,802,000,000	1,802,000,000
JAPAN | Guaranteed Minimum Death Benefit [Member]
Account Value by GMDB Type [Abstract]
Separate Accounts, Liability	85,850,000,000
UNITED STATES | Guaranteed Minimum Withdrawal Benefit [Member]
Account Value by GMDB Type [Abstract]
Net Amount at Risk by Product and Guarantee, General Account Value	8,500,000,000
Net Amount at Risk by Product and Guarantee, Net Amount at Risk at Annuitization	0
Net Amount at Risk by Product and Guarantee, Weighted Average Attained Age	70 years
UNITED STATES | GMDB GMIB [Member]
Movement in Changes in U.S. GMDB/GMWB, International GMDB/GMIB, and UL Secondary Guarantee Benefits [Roll Forward]
Deferred Policy Acquisition Cost, Amortization Expense, Effect of Adjustments to Estimated Gross Profit	(100,000,000)	(116,000,000)
Liabilities for Guarantees on Long Duration Contracts, Business Disposition Impact	0	0
reinsurance recoverable asset impact of business disposition	0			0
UNITED STATES | Guaranteed Minimum Death Benefit [Member]
Movement in Changes in U.S. GMDB/GMWB, International GMDB/GMIB, and UL Secondary Guarantee Benefits [Roll Forward]
Liabilities, as of Jan. 1	849,000,000	918,000,000			849,000,000
Liabilities for Guarantees on Long-Duration Contracts, Incurred Benefits	173,000,000	182,000,000
Liabilities for Guarantees on Long-Duration Contracts, Benefits Paid	110,000,000	135,000,000
Liabilities, as of Dec. 31	812,000,000	849,000,000		849,000,000	849,000,000
Reinsurance Recoverable, as of Jan. 1	533,000,000	608,000,000			533,000,000
Reinsurance Recoverable Asset Incurred	99,000,000	104,000,000
Reinsurance Recoverable Asset Paid	85,000,000	98,000,000
Reinsurance Recoverable, as of Dec. 31	481,000,000	533,000,000		533,000,000	533,000,000
Account Value by GMDB Type [Abstract]
Net Amount at Risk by Product and Guarantee, General Account Value	52,861,000,000
Net Amount at Risk by Product and Guarantee, Net Amount at Risk	3,807,000,000
Net Amount at Risk by Product and Guarantee, Net Amount at Risk at Annuitization	793,000,000
Net Amount at Risk by Product and Guarantee, Weighted Average Attained Age	69 years
Separate Accounts, Liability	48,852,000,000
International [Member] | GMDB GMIB [Member]
Movement in Changes in U.S. GMDB/GMWB, International GMDB/GMIB, and UL Secondary Guarantee Benefits [Roll Forward]
Liabilities, as of Jan. 1	272,000,000	661,000,000		272,000,000
Liabilities for Guarantees on Long-Duration Contracts, Incurred Benefits	28,000,000	82,000,000
Liabilities for Guarantees on Long-Duration Contracts, Benefits Paid	15,000,000	73,000,000
Deferred Policy Acquisition Cost, Amortization Expense, Effect of Adjustments to Estimated Gross Profit	(41,000,000)	(301,000,000)
Liabilities for Guarantees on Long Duration Contracts, Business Disposition Impact	254,000,000	0
Deferred Policy Acquisition Cost, Foreign Currency Translation Adjustment	10,000,000	(97,000,000)
Liabilities, as of Dec. 31	0	272,000,000		272,000,000
Reinsurance Recoverable, as of Jan. 1	23,000,000	36,000,000		23,000,000
Reinsurance Recoverable Asset Incurred	4,000,000	9,000,000
Reinsurance Recoverable Asset Paid	4,000,000	14,000,000
reinsurance recoverable asset impact of business disposition	27,000,000			0
Reinsurance Recoverable, as of Dec. 31	0	23,000,000		23,000,000
Reinsurance Recoverables [Member] | UNITED STATES | Guaranteed Minimum Death Benefit [Member]
Movement in Changes in U.S. GMDB/GMWB, International GMDB/GMIB, and UL Secondary Guarantee Benefits [Roll Forward]
Deferred Policy Acquisition Cost, Amortization Expense, Effect of Adjustments to Estimated Gross Profit	(66,000,000)	(81,000,000)
Reinsurance Recoverables [Member] | International [Member] | GMDB GMIB [Member]
Movement in Changes in U.S. GMDB/GMWB, International GMDB/GMIB, and UL Secondary Guarantee Benefits [Roll Forward]
Deferred Policy Acquisition Cost, Amortization Expense, Effect of Adjustments to Estimated Gross Profit	3,000,000	(2,000,000)
Deferred Policy Acquisition Cost, Foreign Currency Translation Adjustment	1,000,000	(6,000,000)
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	4,066,000,000	4,605,000,000		4,605,000,000
Equity Securities Including Mutual Funds [Member]
Schedule of Fair Value of Separate Accounts [Abstract]
Schedule of Fair Value of Separate Accounts by Major Category of Investment, Fair Value	$ 44,786,000,000	$ 52,858,000,000		$ 52,858,000,000