Fair Value Measurements Level 4 Fair Value by Hierarchy (Details) - Marketable Securities and Investments Held at Cost [Domain] - Fair Value, Option, Eligible Item or Group [Domain] - USD ($) $ in Millions		3 Months Ended			6 Months Ended
		Jun. 30, 2015		Jun. 30, 2014	Jun. 30, 2015		Jun. 30, 2014		Mar. 31, 2015	Dec. 31, 2014		Mar. 31, 2014	Dec. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Assets, Level 2 to Level 1 Transfers, Amount		$ 0			$ 0
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		25,432			25,432					$ 25,436
Marketable Securities, Fixed Maturities		213			213					280
Trading Securities, Equity		11			11					11	[1]
Available-for-sale Securities, Equity Securities		178			178					514
Other Short-term Investments		1,412			1,412					2,162
Alternative Investments, Fair Value Disclosure		1,264			1,264					1,309
Reinsurance Recoverables		20,009			20,009					20,053
Separate Account Assets		131,477			131,477					134,689
Assets, Fair Value Disclosure		154,350			154,350					161,030
Liabilities accounted for at fair value on a recurring basis
Total liabilities accounted for at fair value on a recurring basis		(866)			(866)
Cash collateral liability		150			150					129
Other policyholder funds and benefits payable [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		(138)			(138)
Derivative Financial Instruments, Assets [Member] | Other Investments [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		311			311					339	[2]
Credit derivative [Member] | Other Investments [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		19			19					3
Credit derivative [Member] | Other Liabilities [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		(15)			(15)
Commodity Option [Member] | Other Investments [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		2			2
Commodity Option [Member] | Other Liabilities [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0			0
Equity Contract [Member] | Other Liabilities [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		28			28
Foreign Exchange Contract [Member] | Other Investments [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		2			2					(1)
Foreign Exchange Contract [Member] | Other Liabilities [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		(479)			(479)
Interest Rate Contract [Member] | Other Investments [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		101			101					123
Interest Rate Contract [Member] | Other Liabilities [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		(371)			(371)
Derivative Financial Instruments, Liabilities [Member]
Liabilities accounted for at fair value on a recurring basis
Cash collateral liability		280			280					399
Derivative Financial Instruments, Liabilities [Member] | Other Liabilities [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		(725)			(725)					(722)	[3]
Embedded Derivative Financial Instruments [Member] | Other Liabilities [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		(3)			(3)					(3)	[4]
ABS [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		1,212			1,212					1,171
Collateralized Debt Obligations [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		1,421			1,421					1,148
CMBS [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		2,029			2,029					1,887
Corporate [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		15,644			15,644					15,742
Foreign Government Debt Securities [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		351			351					602
Municipal [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		1,052			1,052					1,052
RMBS [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		1,689			1,689					1,857
U.S. Treasuries [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		2,034			2,034					1,977
Level 1 [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		115			115					72
Marketable Securities, Fixed Maturities		0			0					0
Trading Securities, Equity		11			11					11	[1]
Available-for-sale Securities, Equity Securities		98			98					411
Other Short-term Investments		334			334					199
Assets, Fair Value Disclosure		86,858			86,858					92,217
Liabilities accounted for at fair value on a recurring basis
Total liabilities accounted for at fair value on a recurring basis		0			0
Level 1 [Member] | Other policyholder funds and benefits payable [Member]
Liabilities 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]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0			0					0
Level 1 [Member] | Credit derivative [Member] | Other Liabilities [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0			0
Level 1 [Member] | Commodity Option [Member] | Other Investments [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0			0
Level 1 [Member] | Commodity Option [Member] | Other Liabilities [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0			0
Level 1 [Member] | Equity Contract [Member] | Other Liabilities [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0			0
Level 1 [Member] | Foreign Exchange Contract [Member] | Other Investments [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0			0					0
Level 1 [Member] | Foreign Exchange Contract [Member] | Other Liabilities [Member]
Liabilities 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 Investments [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0			0					0
Level 1 [Member] | Interest Rate Contract [Member] | Other Liabilities [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0			0
Level 1 [Member] | Derivative Financial Instruments, Liabilities [Member] | Other Liabilities [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0			0					0	[3]
Level 1 [Member] | Embedded Derivative Financial Instruments [Member] | Other Liabilities [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0			0					0	[4]
Level 1 [Member] | ABS [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		0			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					0
Level 1 [Member] | CMBS [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		0			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					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					0
Level 1 [Member] | Municipal [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		0			0					0
Level 1 [Member] | RMBS [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		0			0					0
Level 1 [Member] | U.S. Treasuries [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		115			115					72
Level 2 [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		23,595			23,595					23,339
Marketable Securities, Fixed Maturities		141			141					196
Trading Securities, Equity		0			0					0	[1]
Available-for-sale Securities, Equity Securities		36			36					55
Other Short-term Investments		1,078			1,078					1,963
Assets, Fair Value Disclosure		64,686			64,686					65,815
Liabilities accounted for at fair value on a recurring basis
Total liabilities accounted for at fair value on a recurring basis		(809)			(809)
Level 2 [Member] | Other policyholder funds and benefits payable [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0			0
Level 2 [Member] | Derivative Financial Instruments, Assets [Member] | Other Investments [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		128			128					132	[2]
Level 2 [Member] | Credit derivative [Member] | Other Investments [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		19			19					5
Level 2 [Member] | Credit derivative [Member] | Other Liabilities [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		(15)			(15)
Level 2 [Member] | Commodity Option [Member] | Other Investments [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0			0
Level 2 [Member] | Commodity Option [Member] | Other Liabilities [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0			0
Level 2 [Member] | Equity Contract [Member] | Other Liabilities [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		25			25
Level 2 [Member] | Foreign Exchange Contract [Member] | Other Investments [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		2			2					(1)
Level 2 [Member] | Foreign Exchange Contract [Member] | Other Liabilities [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		(479)			(479)
Level 2 [Member] | Interest Rate Contract [Member] | Other Investments [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		101			101					123
Level 2 [Member] | Interest Rate Contract [Member] | Other Liabilities [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		(343)			(343)
Level 2 [Member] | Derivative Financial Instruments, Liabilities [Member] | Other Liabilities [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		(809)			(809)					(801)	[3]
Level 2 [Member] | Embedded Derivative Financial Instruments [Member] | Other Liabilities [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0			0					0	[4]
Level 2 [Member] | ABS [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		1,198			1,198					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		1,073			1,073					788
Level 2 [Member] | CMBS [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		1,942			1,942					1,768
Level 2 [Member] | Corporate [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		15,097			15,097					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		336			336					572
Level 2 [Member] | Municipal [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		1,003			1,003					998
Level 2 [Member] | RMBS [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		1,027			1,027					1,123
Level 2 [Member] | U.S. Treasuries [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		1,919			1,919					1,905
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs		735			735				$ 602	578
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Period Increase (Decrease)		7	[5],[6]		7
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings		(7)	[5],[7]		(7)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Other Comprehensive Income (Loss)					1
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Purchases		224			262
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Settlements		5			10
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Sales		44			50
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers into Level 3		5	[8]		6
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers out of Level 3		53	[8]		57
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		1,722			1,722					2,025
Marketable Securities, Fixed Maturities		72			72					84
Trading Securities, Equity		0			0					0	[1]
Available-for-sale Securities, Equity Securities		44			44					48
Other Short-term Investments		0			0					0
Assets, Fair Value Disclosure		2,806			2,806					2,998
Liabilities accounted for at fair value on a recurring basis
Total liabilities accounted for at fair value on a recurring basis		(57)			(57)
Level 3 [Member] | Other policyholder funds and benefits payable [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		(138)			(138)
Level 3 [Member] | Derivative Financial Instruments, Assets [Member] | Other Investments [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		183			183					207	[2]
Level 3 [Member] | Credit derivative [Member] | Other Investments [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0			0					(2)
Level 3 [Member] | Credit derivative [Member] | Other Liabilities [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0			0
Level 3 [Member] | Commodity Option [Member] | Other Investments [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		2			2
Level 3 [Member] | Commodity Option [Member] | Other Liabilities [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0			0
Level 3 [Member] | Equity Contract [Member] | Other Liabilities [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		3			3
Level 3 [Member] | Foreign Exchange Contract [Member] | Other Investments [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0			0					0
Level 3 [Member] | Foreign Exchange Contract [Member] | Other Liabilities [Member]
Liabilities 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 Investments [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0			0					0
Level 3 [Member] | Interest Rate Contract [Member] | Other Liabilities [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		(28)			(28)
Level 3 [Member] | Derivative Financial Instruments, Liabilities [Member] | Other Liabilities [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		84			84					79	[3]
Level 3 [Member] | Embedded Derivative Financial Instruments [Member] | Other Liabilities [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		(3)			(3)					(3)	[4]
Level 3 [Member] | ABS [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		14			14					82
Level 3 [Member] | Collateralized Debt Obligations [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		348			348					360
Level 3 [Member] | CMBS [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		87			87					119
Level 3 [Member] | Corporate [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		547			547					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		15			15					30
Level 3 [Member] | Municipal [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		49			49					54
Level 3 [Member] | RMBS [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		662			662					734
Level 3 [Member] | U.S. Treasuries [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		0			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]
Liabilities 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]
Liabilities 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]
Liabilities accounted for at fair value on a recurring basis
Derivative Asset		0			0					2
Fair Value, Measurements, Recurring [Member] | Equity Contract [Member] | Other Liabilities [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net										28
Fair Value, Measurements, Recurring [Member] | Foreign Exchange Contract [Member] | Other Liabilities [Member]
Liabilities 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]
Liabilities 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]
Liabilities 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]
Liabilities 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]
Liabilities accounted for at fair value on a recurring basis
Derivative Asset		0			0					0
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Equity Contract [Member] | Other Liabilities [Member]
Liabilities 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 Contract [Member] | Other Liabilities [Member]
Liabilities 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]
Liabilities 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]
Liabilities 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]
Liabilities 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]
Liabilities accounted for at fair value on a recurring basis
Derivative Asset		0			0					0
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Equity Contract [Member] | Other Liabilities [Member]
Liabilities 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 Contract [Member] | Other Liabilities [Member]
Liabilities 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]
Liabilities 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]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs		(138)		$ (20)	(138)		$ (20)		(202)	(165)		$ (554)	$ (594)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Period Increase (Decrease)		78	[5],[6]	593	59		666
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings		(78)	[7],[9]	(593)	(59)		(666)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Settlements		14		59	32		92
Liabilities 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]
Liabilities 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]
Liabilities accounted for at fair value on a recurring basis
Derivative Asset		0			0					2
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Equity Contract [Member] | Other Liabilities [Member]
Liabilities 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 Contract [Member] | Other Liabilities [Member]
Liabilities 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]
Liabilities 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] | Embedded Derivative Financial Instruments [Member] | Other Liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs		(3)		(2)	(3)		(2)		(3)	(3)		(2)	(2)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Period Increase (Decrease)		0	[5],[6]	0	0		0
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings		0	[7],[9]	0	0		0
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Settlements		0		0	0		0
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | CMBS [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		87			87					119
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | RMBS [Member]
Assets accounted for at fair value on a recurring basis
Available-for-sale Securities, Debt Securities		662			662					734
U.S. [Member] | Guaranteed Minimum Withdrawal Benefit [Member] | Other policyholder funds and benefits payable [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		(112)			(112)
U.S. [Member] | Level 1 [Member] | Guaranteed Minimum Withdrawal Benefit [Member] | Other policyholder funds and benefits payable [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0			0
U.S. [Member] | Level 2 [Member] | Guaranteed Minimum Withdrawal Benefit [Member] | Other policyholder funds and benefits payable [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0			0
U.S. [Member] | Level 3 [Member] | Guaranteed Minimum Withdrawal Benefit [Member] | Other policyholder funds and benefits payable [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs		(112)		2	(112)		2		(176)	(139)		(535)	(576)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Period Increase (Decrease)		78	[5],[6]	596	59		670
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings		(78)	[7],[9]	(596)	(59)		(670)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Settlements		14		59	32		92
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		(112)			(112)
U.S. [Member] | Fair Value, Measurements, Recurring [Member] | Guaranteed Minimum Withdrawal Benefit [Member] | Other policyholder funds and benefits payable [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net										(139)
U.S. [Member] | Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Guaranteed Minimum Withdrawal Benefit [Member] | Other policyholder funds and benefits payable [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net										0
U.S. [Member] | Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Guaranteed Minimum Withdrawal Benefit [Member] | Other policyholder funds and benefits payable [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net										0
U.S. [Member] | Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Guaranteed Minimum Withdrawal Benefit [Member] | Other policyholder funds and benefits payable [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net										(139)
US GMWB Hedging Instruments [Member] | U.S. [Member] | Other Investments [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		87			87					119
US GMWB Hedging Instruments [Member] | U.S. [Member] | Other Liabilities [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		47			47					55
US GMWB Hedging Instruments [Member] | U.S. [Member] | Level 1 [Member] | Other Investments [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0			0					0
US GMWB Hedging Instruments [Member] | U.S. [Member] | Level 1 [Member] | Other Liabilities [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0			0					0
US GMWB Hedging Instruments [Member] | U.S. [Member] | Level 2 [Member] | Other Investments [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		6			6					5
US GMWB Hedging Instruments [Member] | U.S. [Member] | Level 2 [Member] | Other Liabilities [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		3			3					(1)
US GMWB Hedging Instruments [Member] | U.S. [Member] | Level 3 [Member] | Other Investments [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		81			81					114
US GMWB Hedging Instruments [Member] | U.S. [Member] | Level 3 [Member] | Other Liabilities [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		44			44					56
Macro Hedge Program [Member] | U.S. [Member] | Other Investments [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		100			100					93
Macro Hedge Program [Member] | U.S. [Member] | Other Liabilities [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		65			65					48
Macro Hedge Program [Member] | U.S. [Member] | Level 1 [Member] | Other Investments [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0			0					0
Macro Hedge Program [Member] | U.S. [Member] | Level 1 [Member] | Other Liabilities [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0			0					0
Macro Hedge Program [Member] | U.S. [Member] | Level 2 [Member] | Other Investments [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0			0					0
Macro Hedge Program [Member] | U.S. [Member] | Level 2 [Member] | Other Liabilities [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0			0					0
Macro Hedge Program [Member] | U.S. [Member] | Level 3 [Member] | Other Investments [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		100			100					93
Macro Hedge Program [Member] | U.S. [Member] | Level 3 [Member] | Other Liabilities [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		65			65					48
GMWB Reinsurance [Member]
Assets accounted for at fair value on a recurring basis
Reinsurance Recoverables		50			50					56
GMWB Reinsurance [Member] | Level 1 [Member]
Assets accounted for at fair value on a recurring basis
Reinsurance Recoverables		0			0					0
GMWB Reinsurance [Member] | Level 2 [Member]
Assets accounted for at fair value on a recurring basis
Reinsurance Recoverables		0			0					0
GMWB Reinsurance [Member] | Level 3 [Member]
Assets accounted for at fair value on a recurring basis
Reinsurance Recoverables		50			50					56
Coinsurance and Modified Coinsurance Reinsurance Contracts [Member]
Assets accounted for at fair value on a recurring basis
Reinsurance Recoverables		60			60					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					0
Coinsurance and Modified Coinsurance Reinsurance Contracts [Member] | Level 2 [Member]
Assets accounted for at fair value on a recurring basis
Reinsurance Recoverables		60			60					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					0
Equity linked notes [Member] | Other policyholder funds and benefits payable [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		(26)			(26)
Equity linked notes [Member] | Level 1 [Member] | Other policyholder funds and benefits payable [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0			0
Equity linked notes [Member] | Level 2 [Member] | Other policyholder funds and benefits payable [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		0			0
Equity linked notes [Member] | Level 3 [Member] | Other policyholder funds and benefits payable [Member]
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net		(26)			(26)
Equity linked notes [Member] | Fair Value, Measurements, Recurring [Member] | Other policyholder funds and benefits payable [Member]
Liabilities 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]
Liabilities 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]
Liabilities 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]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs		(26)		(22)	(26)		(22)		(26)	(26)		(19)	(18)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Period Increase (Decrease)		0	[5],[6]	(3)	0		(4)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings		0	[7],[9]	3	0		4
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Settlements		0		0	0		0
Liabilities accounted for at fair value on a recurring basis
Derivative Assets (Liabilities), at Fair Value, Net										(26)
Separate Accounts [Member]
Assets accounted for at fair value on a recurring basis
Separate Account Assets		126,683			126,683					132,198	[10]
Separate Accounts [Member] | Level 1 [Member]
Assets accounted for at fair value on a recurring basis
Separate Account Assets		86,300			86,300					91,524	[10]
Separate Accounts [Member] | Level 2 [Member]
Assets accounted for at fair value on a recurring basis
Separate Account Assets		39,648			39,648					40,096	[10]
Separate Accounts [Member] | Level 3 [Member]
Assets accounted for at fair value on a recurring basis
Separate Account Assets		735			735					578	[10]
Interim Period [Member] | U.S. Treasuries [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Assets, Level 1 to Level 2 Transfers, Amount		155		77	155		77
Annual Period [Member] | U.S. Treasuries [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Assets, Level 1 to Level 2 Transfers, Amount				1,200			1,200					227
Portion at Other than Fair Value Measurement [Member]
Assets accounted for at fair value on a recurring basis
Separate Account Assets		3,800			3,800					2,500
Derivative [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Purchases							9
Derivative [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs		267	[11]	219	267	[11]	219			286	[11]	219
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Period Increase (Decrease)				(42)	(33)	[5],[6],[11]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings				30	43	[5],[7],[11]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Purchases				2	39	[11]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Settlements				5	31	[11]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers into Level 3	[8],[11]				6
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers out of Level 3				(33)	(10)	[8],[11]
Derivative [Member] | Level 3 [Member] | Credit derivative [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs		0		0	0		0		(6)	(3)		1	2
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Period Increase (Decrease)				(1)	3	[5],[6]	(2)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings		2	[5],[7]	1	(1)	[5],[7]	2
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Purchases		(2)			(8)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Settlements	[11]						0
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers out of Level 3	[8]	(10)			(10)
Derivative [Member] | Level 3 [Member] | Equity Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs		3		2	3		2		5	5		2	2
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Period Increase (Decrease)	[5],[6]				1
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings	[5],[7]	2			(8)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Settlements					10		0	[11]
Derivative [Member] | Level 3 [Member] | Interest Rate Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs		(28)		0	(28)		0		(30)	(27)			(24)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Period Increase (Decrease)		3	[5],[6]		(2)	[5],[6]	(1)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings	[5],[7]	(3)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Settlements		(1)			1		0	[11]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers out of Level 3							(24)
Derivative [Member] | Non-US [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs													(61)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings							(24)
Derivative [Member] | International Program Hedging Instruments [Member] | JAPAN | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs				0			0					(40)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings				(12)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Settlements				5
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers out of Level 3				(33)
Derivative [Member] | US GMWB Hedging Instruments [Member] | U.S. [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs		125		97	125		97		$ 159	$ 170		$ 123	$ 146
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Period Increase (Decrease)		(32)	[5],[6]	(26)	(16)	[5],[6]	(76)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings		$ 34	[5],[7]	26	25	[5],[7]	60
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Purchases							4
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Settlements					$ 20		(7)	[11]
Derivative [Member] | Designated as Hedging Instrument [Member] | Non-US [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs				$ 0			0
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Period Increase (Decrease)							17
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Settlements							5
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers out of Level 3							$ (33)

[1] Included in other investments on the Condensed Consolidated Balance Sheets.

[2] Includes over-the-counter ("OTC") and OTC-cleared derivative instruments in a net positive fair value position after consideration of the accrued interest and impact of collateral posting requirements which may be imposed by agreements, clearing house rules and applicable law. As of June 30, 2015 and December 31, 2014, $280 and $399, respectively, of cash collateral liability was netted against the derivative asset value in the Condensed Consolidated Balance Sheet and is excluded from the preceding table. See the following footnote 4 for derivative liabilities.

[3] Includes OTC and OTC-cleared derivative instruments in a net negative fair market value position (derivative liability) after consideration of the accrued interest and impact of collateral posting requirements which may be imposed by agreements, clearing house rules and applicable law. In the following Level 3 roll-forward table in this Note 2, the derivative assets and liabilities are referred to as “freestanding derivatives” and are presented on a net basis.

[4] Represents embedded derivatives associated with non-funding agreement-backed consumer equity-linked notes.

[5] All amounts in these rows are reported in net realized capital gains (losses). The realized/unrealized gains (losses) included in net income for separate account assets are offset by an equal amount for separate account liabilities, which results in a net zero impact on net income for the Company. All amounts are before income taxes and amortization of DAC.

[6] Includes both market and non-market impacts in deriving realized and unrealized gains (losses).

[7] The Company classifies gains and losses on GMWB reinsurance derivatives and GMWB embedded derivatives as unrealized gains (losses) for purposes of disclosure in this table because it is impracticable to track on a contract-by-contract basis the realized gains (losses) for these derivatives and embedded derivatives.

[8] Transfers in and/or (out) of Level 3 are primarily attributable to the availability of market observable information and the re-evaluation of the observability of pricing inputs.

[9] All amounts are before income taxes and amortization of DAC.

[10] Approximately $3.8 billion and $2.5 billion of investment sales receivable, as of June 30, 2015 and December 31, 2014, respectively, are excluded from this disclosure requirement because they are trade receivables in the ordinary course of business where the carrying amount approximates fair value.

[11] Derivative instruments are reported in this table on a net basis for asset/(liability) positions and reported in the Condensed Consolidated Balance Sheet in other investments and other liabilities.