Fair Value Measurements Level 4 Fair Value by Hierarchy (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		$ 24,657	$ 25,436
Marketable Securities, Fixed Maturities		165	280
Equity securities, trading [1]		11	11
Equity securities, AFS		459	514
Short-term investments		572	2,162
Alternative Investments, Fair Value Disclosure		1,216	1,309
Reinsurance Recoverables		20,499	20,053
Separate Account Assets		120,111	134,689
Total assets accounted for at fair value on a recurring basis		144,439	161,030
Liabilities accounted for at fair value on a recurring basis
Total liabilities accounted for at fair value on a recurring basis		(941)
Derivative Liability, Fair Value, Amount Offset Against Collateral		3	129
Separate Account Assets, at Carrying Value		1,800	2,500
Fair Value, Assets, Level 2 to Level 1 Transfers, Amount		0
Other policyholder funds and benefits payable [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		(288)
Derivative Financial Instruments, Liabilities [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Liability, Fair Value, Amount Offset Against Collateral		271	399
Derivative Financial Instruments, Liabilities [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		(653)	(722)	[1]
Credit derivative [Member] | Other Investments [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		7	3
Credit derivative [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		(7)
Equity Contract [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		41
Foreign exchange derivative [Member] | Other Investments [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		4	(1)
Foreign exchange derivative [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		(376)
Interest Rate Contract [Member] | Other Investments [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		54	123
Interest Rate Contract [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		(431)
Derivative Financial Instruments, Assets [Member] | Other Investments [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		250	339	[2]
Embedded Derivative Financial Instruments [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net			(3)
ABS [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		846	1,171
Collateralized Debt Obligations [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities	[3]	1,408	1,148
Commercial Mortgage Backed Securities [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		1,964	1,887
Corporate [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		15,175	15,742
Foreign Government Debt Securities [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		331	602
US States and Political Subdivisions Debt Securities [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		1,132	1,052
Residential Mortgage Backed Securities [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		1,503	1,857
US Treasury Securities [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		2,298	1,977
Liabilities accounted for at fair value on a recurring basis
Fair Value, Assets, Level 1 to Level 2 Transfers, Amount		700	1,400
Level 1 [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		123	72
Marketable Securities, Fixed Maturities		1	0
Equity securities, trading [1]		11	11
Equity securities, AFS		396	411
Short-term investments		131	199
Total assets accounted for at fair value on a recurring basis		78,761	92,217
Liabilities accounted for at fair value on a recurring basis
Total liabilities accounted for at fair value on a recurring basis		0
Level 1 [Member] | Other policyholder funds and benefits payable [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0
Level 1 [Member] | Derivative Financial Instruments, Liabilities [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0	0
Level 1 [Member] | Credit derivative [Member] | Other Investments [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0	0
Level 1 [Member] | Credit derivative [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0
Level 1 [Member] | Equity Contract [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0
Level 1 [Member] | Foreign exchange derivative [Member] | Other Investments [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0	0
Level 1 [Member] | Foreign exchange derivative [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0
Level 1 [Member] | Interest Rate Contract [Member] | Other Investments [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0	0
Level 1 [Member] | Interest Rate Contract [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0
Level 1 [Member] | Embedded Derivative Financial Instruments [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net			0
Level 1 [Member] | ABS [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		0	0
Level 1 [Member] | Collateralized Debt Obligations [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		0	0
Level 1 [Member] | Commercial Mortgage Backed Securities [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		0	0
Level 1 [Member] | Corporate [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		0	0
Level 1 [Member] | Foreign Government Debt Securities [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		0	0
Level 1 [Member] | US States and Political Subdivisions Debt Securities [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		0	0
Level 1 [Member] | Residential Mortgage Backed Securities [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		0	0
Level 1 [Member] | US Treasury Securities [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		123	72
Level 2 [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		22,909	23,339
Marketable Securities, Fixed Maturities		162	196
Equity securities, trading [1]		0	0
Equity securities, AFS		25	55
Short-term investments		441	1,963
Total assets accounted for at fair value on a recurring basis		63,267	65,815
Liabilities accounted for at fair value on a recurring basis
Total liabilities accounted for at fair value on a recurring basis		(748)
Level 2 [Member] | Other policyholder funds and benefits payable [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0
Level 2 [Member] | Derivative Financial Instruments, Liabilities [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		(748)	(801)
Level 2 [Member] | Credit derivative [Member] | Other Investments [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		7	5
Level 2 [Member] | Credit derivative [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		(7)
Level 2 [Member] | Equity Contract [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		41
Level 2 [Member] | Foreign exchange derivative [Member] | Other Investments [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		4	(1)
Level 2 [Member] | Foreign exchange derivative [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		(376)
Level 2 [Member] | Interest Rate Contract [Member] | Other Investments [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		54	123
Level 2 [Member] | Interest Rate Contract [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		(402)
Level 2 [Member] | Derivative Financial Instruments, Assets [Member] | Other Investments [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		92	132
Level 2 [Member] | Embedded Derivative Financial Instruments [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net			0
Level 2 [Member] | ABS [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		841	1,089
Level 2 [Member] | Collateralized Debt Obligations [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		1,078	788
Level 2 [Member] | Commercial Mortgage Backed Securities [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		1,902	1,768
Level 2 [Member] | Corporate [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		14,641	15,096
Level 2 [Member] | Foreign Government Debt Securities [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		314	572
Level 2 [Member] | US States and Political Subdivisions Debt Securities [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		1,083	998
Level 2 [Member] | Residential Mortgage Backed Securities [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		875	1,123
Level 2 [Member] | US Treasury Securities [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		2,175	1,905
Level 3 [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		1,625	2,025
Marketable Securities, Fixed Maturities		2	84
Equity securities, trading [1]		0	0
Equity securities, AFS		38	48
Short-term investments		0	0
Total assets accounted for at fair value on a recurring basis		2,411	2,998
Liabilities accounted for at fair value on a recurring basis
Total liabilities accounted for at fair value on a recurring basis		(193)
Level 3 [Member] | Other policyholder funds and benefits payable [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		(288)
Level 3 [Member] | Derivative Financial Instruments, Liabilities [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		95	79
Level 3 [Member] | Credit derivative [Member] | Other Investments [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0	(2)
Level 3 [Member] | Credit derivative [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0
Level 3 [Member] | Equity Contract [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0
Level 3 [Member] | Foreign exchange derivative [Member] | Other Investments [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0	0
Level 3 [Member] | Foreign exchange derivative [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0
Level 3 [Member] | Interest Rate Contract [Member] | Other Investments [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0	0
Level 3 [Member] | Interest Rate Contract [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		(29)
Level 3 [Member] | Derivative Financial Instruments, Assets [Member] | Other Investments [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		158	207
Level 3 [Member] | Embedded Derivative Financial Instruments [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net			(3)
Level 3 [Member] | ABS [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		5	82
Level 3 [Member] | Collateralized Debt Obligations [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		330	360
Level 3 [Member] | Commercial Mortgage Backed Securities [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		62	119
Level 3 [Member] | Corporate [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		534	646
Level 3 [Member] | Foreign Government Debt Securities [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		17	30
Level 3 [Member] | US States and Political Subdivisions Debt Securities [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		49	54
Level 3 [Member] | Residential Mortgage Backed Securities [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		628	734
Level 3 [Member] | US Treasury Securities [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		0	0
Fair Value, Measurements, Recurring [Member]
Liabilities accounted for at fair value on a recurring basis
Total liabilities accounted for at fair value on a recurring basis			(890)
Fair Value, Measurements, Recurring [Member] | Other policyholder funds and benefits payable [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net			(165)
Fair Value, Measurements, Recurring [Member] | Credit derivative [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net			0
Fair Value, Measurements, Recurring [Member] | Equity Contract [Member]
Assets accounted for at fair value on a recurring basis
Derivative Asset			2
Fair Value, Measurements, Recurring [Member] | Equity Contract [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net			28
Fair Value, Measurements, Recurring [Member] | Foreign exchange derivative [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net			(444)
Fair Value, Measurements, Recurring [Member] | Interest Rate Contract [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net			(409)
Fair Value, Measurements, Recurring [Member] | Level 1 [Member]
Liabilities accounted for at fair value on a recurring basis
Total liabilities accounted for at fair value on a recurring basis			0
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Other policyholder funds and benefits payable [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net			0
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Credit derivative [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net			0
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Equity Contract [Member]
Assets accounted for at fair value on a recurring basis
Derivative Asset			0
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Equity Contract [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net			0
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Foreign exchange derivative [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net			0
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Interest Rate Contract [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net			0
Fair Value, Measurements, Recurring [Member] | Level 2 [Member]
Liabilities accounted for at fair value on a recurring basis
Total liabilities accounted for at fair value on a recurring basis			(801)
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Other policyholder funds and benefits payable [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net			0
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Credit derivative [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net			1
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Equity Contract [Member]
Assets accounted for at fair value on a recurring basis
Derivative Asset			0
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Equity Contract [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net			25
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Foreign exchange derivative [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net			(444)
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Interest Rate Contract [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net			(382)
Fair Value, Measurements, Recurring [Member] | Level 3 [Member]
Liabilities accounted for at fair value on a recurring basis
Total liabilities accounted for at fair value on a recurring basis			(89)
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Other policyholder funds and benefits payable [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net			(165)
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Credit derivative [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net			(1)
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Equity Contract [Member]
Assets accounted for at fair value on a recurring basis
Derivative Asset			2
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Equity Contract [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net			3
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Foreign exchange derivative [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net			0
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Interest Rate Contract [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net			(27)
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Commercial Mortgage Backed Securities [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		61	119
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Residential Mortgage Backed Securities [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		$ 628	734
Derivative Financial Instruments, Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurements, Valuation Techniques		Derivative instruments are fair valued using pricing valuation models for OTC derivatives that utilize independent market data inputs, quoted market prices for exchange-traded and OTC-cleared derivatives, or independent broker quotations. Excluding embedded and reinsurance related derivatives, as of December 31, 2015 and 2014, 94% and 95%, respectively, of derivatives, based upon notional values, were priced by valuation models, including discounted cash flow models and option-pricing models that utilize present value techniques, or quoted market prices. The remaining derivatives were priced by broker quotations.
UNITED STATES | Guaranteed Minimum Withdrawal Benefit [Member] | Other policyholder funds and benefits payable [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		$ (262)
UNITED STATES | Level 1 [Member] | Guaranteed Minimum Withdrawal Benefit [Member] | Other policyholder funds and benefits payable [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0
UNITED STATES | Level 2 [Member] | Guaranteed Minimum Withdrawal Benefit [Member] | Other policyholder funds and benefits payable [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0
UNITED STATES | Level 3 [Member] | Guaranteed Minimum Withdrawal Benefit [Member] | Other policyholder funds and benefits payable [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		(262)
UNITED STATES | Fair Value, Measurements, Recurring [Member] | Guaranteed Minimum Withdrawal Benefit [Member] | Other policyholder funds and benefits payable [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net			(139)
UNITED STATES | Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Guaranteed Minimum Withdrawal Benefit [Member] | Other policyholder funds and benefits payable [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net			0
UNITED STATES | Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Guaranteed Minimum Withdrawal Benefit [Member] | Other policyholder funds and benefits payable [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net			0
UNITED STATES | Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Guaranteed Minimum Withdrawal Benefit [Member] | Other policyholder funds and benefits payable [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net			(139)
GMWB Reinsurance [Member]
Assets accounted for at fair value on a recurring basis
Reinsurance Recoverables		83	56
GMWB Reinsurance [Member] | Level 1 [Member]
Assets accounted for at fair value on a recurring basis
Reinsurance Recoverables		0	0
GMWB Reinsurance [Member] | Level 2 [Member]
Assets accounted for at fair value on a recurring basis
Reinsurance Recoverables		0	0
GMWB Reinsurance [Member] | Level 3 [Member]
Assets accounted for at fair value on a recurring basis
Reinsurance Recoverables		83	56
Equity linked notes [Member] | Other policyholder funds and benefits payable [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		(26)
Equity linked notes [Member] | Level 1 [Member] | Other policyholder funds and benefits payable [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0
Equity linked notes [Member] | Level 2 [Member] | Other policyholder funds and benefits payable [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0
Equity linked notes [Member] | Level 3 [Member] | Other policyholder funds and benefits payable [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		$ (26)
Equity linked notes [Member] | Fair Value, Measurements, Recurring [Member] | Other policyholder funds and benefits payable [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net			(26)
Equity linked notes [Member] | Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Other policyholder funds and benefits payable [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net			0
Equity linked notes [Member] | Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Other policyholder funds and benefits payable [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net			0
Equity linked notes [Member] | Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Other policyholder funds and benefits payable [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net			$ (26)
US GMWB Hedging Instruments [Member] | Level 3 [Member] | Other Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurements, Valuation Techniques		Discounted  cash flows	Discounted  cash flows
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		$ 131	$ 124
US GMWB Hedging Instruments [Member] | UNITED STATES | Other Investments [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		111	119
US GMWB Hedging Instruments [Member] | UNITED STATES | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		47	55
US GMWB Hedging Instruments [Member] | UNITED STATES | Level 1 [Member] | Other Investments [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0	0
US GMWB Hedging Instruments [Member] | UNITED STATES | Level 1 [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0	0
US GMWB Hedging Instruments [Member] | UNITED STATES | Level 2 [Member] | Other Investments [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		27	5
US GMWB Hedging Instruments [Member] | UNITED STATES | Level 2 [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		(4)	(1)
US GMWB Hedging Instruments [Member] | UNITED STATES | Level 3 [Member] | Other Investments [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		84	114
US GMWB Hedging Instruments [Member] | UNITED STATES | Level 3 [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		51	56
Macro Hedge Program [Member] | UNITED STATES | Other Investments [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		74	93
Macro Hedge Program [Member] | UNITED STATES | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		73	48
Macro Hedge Program [Member] | UNITED STATES | Level 1 [Member] | Other Investments [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0	0
Macro Hedge Program [Member] | UNITED STATES | Level 1 [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0	0
Macro Hedge Program [Member] | UNITED STATES | Level 2 [Member] | Other Investments [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0	0
Macro Hedge Program [Member] | UNITED STATES | Level 2 [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0	0
Macro Hedge Program [Member] | UNITED STATES | Level 3 [Member] | Other Investments [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		74	93
Macro Hedge Program [Member] | UNITED STATES | Level 3 [Member] | Other liabilities [Member]
Assets accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		73	48
Coinsurance and Modified Coinsurance Reinsurance Contracts [Member]
Assets accounted for at fair value on a recurring basis
Reinsurance Recoverables		79	34
Coinsurance and Modified Coinsurance Reinsurance Contracts [Member] | Level 1 [Member]
Assets accounted for at fair value on a recurring basis
Reinsurance Recoverables		0	0
Coinsurance and Modified Coinsurance Reinsurance Contracts [Member] | Level 2 [Member]
Assets accounted for at fair value on a recurring basis
Reinsurance Recoverables		79	34
Coinsurance and Modified Coinsurance Reinsurance Contracts [Member] | Level 3 [Member]
Assets accounted for at fair value on a recurring basis
Reinsurance Recoverables		0	0
Separate Accounts [Member]
Assets accounted for at fair value on a recurring basis
Separate Account Assets		118,163	132,198
Separate Accounts [Member] | Level 1 [Member]
Assets accounted for at fair value on a recurring basis
Separate Account Assets		78,099	91,524
Separate Accounts [Member] | Level 2 [Member]
Assets accounted for at fair value on a recurring basis
Separate Account Assets		39,559	40,096
Separate Accounts [Member] | Level 3 [Member]
Assets accounted for at fair value on a recurring basis
Separate Account Assets		$ 505	$ 578

[1] Included in other liabilities in the Company's Consolidated Balance Sheets and is limited to the net derivative payable associated with each counterparty

[2] Included in other investments in the Company's Consolidated Balance Sheets.

[3] Gross unrealized gains (losses) exclude the fair value of bifurcated embedded derivatives within certain securities. Subsequent changes in value are recorded in net realized capital gains (losses).