Fair Value (Details 1) (USD $) In Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Fixed maturity securities [Member]
Fair Value Assets Measured on Recurring Basis Unobservable Input Rollforward
Transfer Into Level 3	$ 756	$ 1,088	$ 653	$ 1,214
Transfer Out of Level 3	(3,210)	(1,063)	(4,594)	(1,336)
U.S. corporate securities [Member]
Fair Value Assets Measured on Recurring Basis Unobservable Input Rollforward
Balance, Beginning of Period	6,861	6,339	7,149	6,694
Net Investment Income	2	12	5	17
Net Investment Gains (Losses)	(15)	0	(12)	5
Net Derivative Gains (Losses)	0	0	0	0
Other Revenues	0	0	0	0
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	0	0	0	0
Other Comprehensive Income (Loss)	91	97	138	322
Purchases	434		778
Sales	(313)		(534)
Issuances	0		0
Settlements	0		0
Purchases, Sales, Issuances and Settlements		362		(270)
Transfer Into Level 3	64	518	54	602
Transfer Out of Level 3	(253)	(155)	(707)	(197)
Balance, End of Period	6,871	7,173	6,871	7,173
Summary of the portion of unrealized gain loss recorded in earnings for Level 3 assets and liabilities measured on a recurring basis still held at the reporting date
Net Investment Income	2	6	5	10
Net Investment Gains (Losses)	(27)	(6)	(27)	(17)
Net Derivative Gains (Losses)	0	0	0	0
Other Revenues	0	0	0	0
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	0	0	0	0
RMBS [Member]
Fair Value Assets Measured on Recurring Basis Unobservable Input Rollforward
Balance, Beginning of Period	271	1,927	1,422	1,840
Net Investment Income	0	13	(1)	26
Net Investment Gains (Losses)	(1)	0	(1)	0
Net Derivative Gains (Losses)	0	0	0	0
Other Revenues	0	0	0	0
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	0	0	0	0
Other Comprehensive Income (Loss)	8	(6)	16	13
Purchases	21		37
Sales	(37)		(57)
Issuances	0		0
Settlements	0		0
Purchases, Sales, Issuances and Settlements		98		51
Transfer Into Level 3	298	31	263	54
Transfer Out of Level 3	(126)	(211)	(1,245)	(132)
Balance, End of Period	434	1,852	434	1,852
Summary of the portion of unrealized gain loss recorded in earnings for Level 3 assets and liabilities measured on a recurring basis still held at the reporting date
Net Investment Income	0	13	(1)	26
Net Investment Gains (Losses)	(1)	0	(1)	0
Net Derivative Gains (Losses)	0	0	0	0
Other Revenues	0	0	0	0
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	0	0	0	0
U.S. Treasury and agency securities [Member]
Fair Value Assets Measured on Recurring Basis Unobservable Input Rollforward
Balance, Beginning of Period	76	36	79	37
Net Investment Income	0	0	0	0
Net Investment Gains (Losses)	0	0	0	0
Net Derivative Gains (Losses)	0	0	0	0
Other Revenues	0	0	0	0
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	0	0	0	0
Other Comprehensive Income (Loss)	0	2	0	2
Purchases	1		1
Sales	(1)		(1)
Issuances	0		0
Settlements	0		0
Purchases, Sales, Issuances and Settlements		(1)		(2)
Transfer Into Level 3	0	0	0	0
Transfer Out of Level 3	(50)	0	(53)	0
Balance, End of Period	26	37	26	37
Summary of the portion of unrealized gain loss recorded in earnings for Level 3 assets and liabilities measured on a recurring basis still held at the reporting date
Net Investment Income	0	0	0	0
Net Investment Gains (Losses)	0	0	0	0
Net Derivative Gains (Losses)	0	0	0	0
Other Revenues	0	0	0	0
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	0	0	0	0
CMBS [Member]
Fair Value Assets Measured on Recurring Basis Unobservable Input Rollforward
Balance, Beginning of Period	791	225	1,011	139
Net Investment Income	18	0	11	0
Net Investment Gains (Losses)	22	1	68	(1)
Net Derivative Gains (Losses)	0	0	0	0
Other Revenues	0	0	0	0
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	0	0	0	0
Other Comprehensive Income (Loss)	(12)	47	87	58
Purchases	171		171
Sales	(116)		(508)
Issuances	0		0
Settlements	0		0
Purchases, Sales, Issuances and Settlements		(20)		(15)
Transfer Into Level 3	24	117	45	122
Transfer Out of Level 3	(117)	(100)	(104)	(33)
Balance, End of Period	781	270	781	270
Summary of the portion of unrealized gain loss recorded in earnings for Level 3 assets and liabilities measured on a recurring basis still held at the reporting date
Net Investment Income	17	0	11	0
Net Investment Gains (Losses)	0	1	0	0
Net Derivative Gains (Losses)	0	0	0	0
Other Revenues	0	0	0	0
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	0	0	0	0
ABS [Member]
Fair Value Assets Measured on Recurring Basis Unobservable Input Rollforward
Balance, Beginning of Period	4,506	2,813	4,145	2,703
Net Investment Income	8	8	19	19
Net Investment Gains (Losses)	(10)	(20)	(24)	(47)
Net Derivative Gains (Losses)	0	0	0	0
Other Revenues	0	0	0	0
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	0	0	0	0
Other Comprehensive Income (Loss)	(2)	81	103	197
Purchases	139		283
Sales	(263)		(419)
Issuances	0		0
Settlements	0		0
Purchases, Sales, Issuances and Settlements		483		739
Transfer Into Level 3	108	130	109	91
Transfer Out of Level 3	(2,035)	(6)	(1,765)	(213)
Balance, End of Period	2,451	3,489	2,451	3,489
Summary of the portion of unrealized gain loss recorded in earnings for Level 3 assets and liabilities measured on a recurring basis still held at the reporting date
Net Investment Income	8	8	19	19
Net Investment Gains (Losses)	(7)	(20)	(15)	(47)
Net Derivative Gains (Losses)	0	0	0	0
Other Revenues	0	0	0	0
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	0	0	0	0
State and political subdivision securities [Member]
Fair Value Assets Measured on Recurring Basis Unobservable Input Rollforward
Balance, Beginning of Period	46	101	46	69
Net Investment Income	0	0	0	0
Net Investment Gains (Losses)	0	0	0	0
Net Derivative Gains (Losses)	0	0	0	0
Other Revenues	0	0	0	0
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	0	0	0	0
Other Comprehensive Income (Loss)	(6)	3	(7)	9
Purchases	43		45
Sales	0		(3)
Issuances	0		0
Settlements	0		0
Purchases, Sales, Issuances and Settlements		19		23
Transfer Into Level 3	10	0	10	0
Transfer Out of Level 3	(4)	(22)	(2)	0
Balance, End of Period	89	101	89	101
Summary of the portion of unrealized gain loss recorded in earnings for Level 3 assets and liabilities measured on a recurring basis still held at the reporting date
Net Investment Income	0	0	0	0
Net Investment Gains (Losses)	0	0	0	0
Net Derivative Gains (Losses)	0	0	0	0
Other Revenues	0	0	0	0
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	0	0	0	0
Other fixed maturity securities [Member]
Fair Value Assets Measured on Recurring Basis Unobservable Input Rollforward
Balance, Beginning of Period	4	6	4	6
Net Investment Income	0	0	0	0
Net Investment Gains (Losses)	0	0	0	0
Net Derivative Gains (Losses)	0	0	0	0
Other Revenues	0	0	0	0
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	0	0	0	0
Other Comprehensive Income (Loss)	0	1	0	1
Purchases	0		0
Sales	(2)		(2)
Issuances	0		0
Settlements	0		0
Purchases, Sales, Issuances and Settlements		(2)		(2)
Transfer Into Level 3	0	0	0	0
Transfer Out of Level 3	0	0	0	0
Balance, End of Period	2	5	2	5
Summary of the portion of unrealized gain loss recorded in earnings for Level 3 assets and liabilities measured on a recurring basis still held at the reporting date
Net Investment Income	0	0	0	0
Net Investment Gains (Losses)	0	0	0	0
Net Derivative Gains (Losses)	0	0	0	0
Other Revenues	0	0	0	0
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	0	0	0	0
Foreign corporate securities [Member]
Fair Value Assets Measured on Recurring Basis Unobservable Input Rollforward
Balance, Beginning of Period	5,534	5,330	5,726	5,244
Net Investment Income	(3)	3	3	3
Net Investment Gains (Losses)	(30)	(18)	(18)	(12)
Net Derivative Gains (Losses)	0	0	0	0
Other Revenues	0	0	0	0
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	0	0	0	0
Other Comprehensive Income (Loss)	105	(139)	186	76
Purchases	1,553		1,817
Sales	(960)		(1,463)
Issuances	0		0
Settlements	0		0
Purchases, Sales, Issuances and Settlements		(371)		(502)
Transfer Into Level 3	53	292	39	345
Transfer Out of Level 3	(408)	(545)	(446)	(602)
Balance, End of Period	5,844	4,552	5,844	4,552
Summary of the portion of unrealized gain loss recorded in earnings for Level 3 assets and liabilities measured on a recurring basis still held at the reporting date
Net Investment Income	7	3	13	4
Net Investment Gains (Losses)	(18)	(16)	(19)	(16)
Net Derivative Gains (Losses)	0	0	0	0
Other Revenues	0	0	0	0
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	0	0	0	0
Common Stock
Fair Value Assets Measured on Recurring Basis Unobservable Input Rollforward
Balance, Beginning of Period	359	159	268	136
Net Investment Income	0	0	0	0
Net Investment Gains (Losses)	3	3	5	3
Net Derivative Gains (Losses)	0	0	0	0
Other Revenues	0	0	0	0
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	0	0	0	0
Other Comprehensive Income (Loss)	8	(15)	(13)	(10)
Purchases	27		67
Sales	(12)		(18)
Issuances	0		0
Settlements	0		0
Purchases, Sales, Issuances and Settlements		22		42
Transfer Into Level 3	2	0	1	0
Transfer Out of Level 3	(82)	(8)	(5)	(10)
Balance, End of Period	305	161	305	161
Summary of the portion of unrealized gain loss recorded in earnings for Level 3 assets and liabilities measured on a recurring basis still held at the reporting date
Net Investment Income	0	0	0	0
Net Investment Gains (Losses)	(4)	(1)	(4)	(1)
Net Derivative Gains (Losses)	0	0	0	0
Other Revenues	0	0	0	0
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	0	0	0	0
Interest rate contracts [Member]
Fair Value Assets Measured on Recurring Basis Unobservable Input Rollforward
Balance, Beginning of Period	(89)	34	(86)	7
Net Investment Income	0	0	0	0
Net Investment Gains (Losses)	0	0	0	0
Net Derivative Gains (Losses)	5	21	12	34
Other Revenues	(2)	33	7	47
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	0	0	0	0
Other Comprehensive Income (Loss)	19	(15)	7	(15)
Purchases	0		0
Sales	0		0
Issuances	0		0
Settlements	0		0
Purchases, Sales, Issuances and Settlements		(12)		(12)
Transfer Into Level 3	0	0	0	0
Transfer Out of Level 3	0	0	(7)	0
Balance, End of Period	(67)	61	(67)	61
Summary of the portion of unrealized gain loss recorded in earnings for Level 3 assets and liabilities measured on a recurring basis still held at the reporting date
Net Investment Income	0	0	0	0
Net Investment Gains (Losses)	0	0	0	0
Net Derivative Gains (Losses)	4	22	11	35
Other Revenues	11	51	12	51
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	0	0	0	0
Foreign currency contracts [Member]
Fair Value Assets Measured on Recurring Basis Unobservable Input Rollforward
Balance, Beginning of Period	39	74	73	108
Net Investment Income	0	0	0	0
Net Investment Gains (Losses)	0	0	0	0
Net Derivative Gains (Losses)	1	(10)	(4)	(27)
Other Revenues	0	0	0	0
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	0	0	0	(3)
Other Comprehensive Income (Loss)	0	0	0	(1)
Purchases	0		6
Sales	0		0
Issuances	0		0
Settlements	0		0
Purchases, Sales, Issuances and Settlements		(36)		(49)
Transfer Into Level 3	9	0	0	0
Transfer Out of Level 3	0	0	(26)	0
Balance, End of Period	49	28	49	28
Summary of the portion of unrealized gain loss recorded in earnings for Level 3 assets and liabilities measured on a recurring basis still held at the reporting date
Net Investment Income	0	0	0	0
Net Investment Gains (Losses)	0	0	0	0
Net Derivative Gains (Losses)	1	(18)	(4)	(29)
Other Revenues	0	0	0	0
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	0	0	0	(1)
Credit contracts [Member]
Fair Value Assets Measured on Recurring Basis Unobservable Input Rollforward
Balance, Beginning of Period	43	47	44	42
Net Investment Income	0	0	0	0
Net Investment Gains (Losses)	0	0	0	0
Net Derivative Gains (Losses)	(2)	(22)	4	(22)
Other Revenues	0	0	0	0
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	0	0	0	0
Other Comprehensive Income (Loss)	6	15	2	17
Purchases	0		0
Sales	0		0
Issuances	0		(3)
Settlements	(5)		(5)
Purchases, Sales, Issuances and Settlements		(9)		(6)
Transfer Into Level 3	0	0	0	0
Transfer Out of Level 3	0	0	0	0
Balance, End of Period	42	31	42	31
Summary of the portion of unrealized gain loss recorded in earnings for Level 3 assets and liabilities measured on a recurring basis still held at the reporting date
Net Investment Income	0	0	0	0
Net Investment Gains (Losses)	0	0	0	0
Net Derivative Gains (Losses)	(3)	(23)	4	(21)
Other Revenues	0	0	0	0
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	0	0	0	0
Equity market contracts [Member]
Fair Value Assets Measured on Recurring Basis Unobservable Input Rollforward
Balance, Beginning of Period	(16)	80	142	199
Net Investment Income	0	12	(3)	8
Net Investment Gains (Losses)	0	0	0	0
Net Derivative Gains (Losses)	(17)	535	(110)	412
Other Revenues	0	0	0	0
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	0	0	0	0
Other Comprehensive Income (Loss)	0	4	0	5
Purchases	88		106
Sales	0		0
Issuances	0		0
Settlements	0		(5)
Purchases, Sales, Issuances and Settlements		2		9
Transfer Into Level 3	0	0	0	0
Transfer Out of Level 3	0	0	(75)	0
Balance, End of Period	55	633	55	633
Summary of the portion of unrealized gain loss recorded in earnings for Level 3 assets and liabilities measured on a recurring basis still held at the reporting date
Net Investment Income	0	11	0	8
Net Investment Gains (Losses)	0	0	0	0
Net Derivative Gains (Losses)	(17)	534	(110)	418
Other Revenues	0	0	0	0
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	0	0	0	0
Short-term Investments [Member]
Fair Value Assets Measured on Recurring Basis Unobservable Input Rollforward
Balance, Beginning of Period	742	92	858	18
Net Investment Income	2	0	4	0
Net Investment Gains (Losses)	0	0	(1)	0
Net Derivative Gains (Losses)	0	0	0	0
Other Revenues	0	0	0	0
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	0	0	0	0
Other Comprehensive Income (Loss)	3	0	10	0
Purchases	333		618
Sales	(351)		(754)
Issuances	0		0
Settlements	0		0
Purchases, Sales, Issuances and Settlements		46		34
Transfer Into Level 3	3	0	3	0
Transfer Out of Level 3	0	(86)	(6)	0
Balance, End of Period	732	52	732	52
Summary of the portion of unrealized gain loss recorded in earnings for Level 3 assets and liabilities measured on a recurring basis still held at the reporting date
Net Investment Income	2	0	3	0
Net Investment Gains (Losses)	0	0	0	0
Net Derivative Gains (Losses)	0	0	0	0
Other Revenues	0	0	0	0
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	0	0	0	0
MSR's [Member]
Fair Value Assets Measured on Recurring Basis Unobservable Input Rollforward
Balance, Beginning of Period	1,029	859	950	878
Net Investment Income	0	0	0	0
Net Investment Gains (Losses)	0	0	0	0
Net Derivative Gains (Losses)	0	0	0	0
Other Revenues	(75)	(183)	(18)	(238)
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	0	0	0	0
Other Comprehensive Income (Loss)	0	0	0	0
Purchases	0		0
Sales	0		0
Issuances	37		92
Settlements	(27)		(60)
Purchases, Sales, Issuances and Settlements		(16)		20
Transfer Into Level 3	0	0	0	0
Transfer Out of Level 3	0	0	0	0
Balance, End of Period	964	660	964	660
Summary of the portion of unrealized gain loss recorded in earnings for Level 3 assets and liabilities measured on a recurring basis still held at the reporting date
Net Investment Income	0	0	0	0
Net Investment Gains (Losses)	0	0	0	0
Net Derivative Gains (Losses)	0	0	0	0
Other Revenues	(73)	(155)	(18)	(224)
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	0	0	0	0
Net Embedded Derivatives [Member]
Fair Value Assets Measured on Recurring Basis Unobservable Input Rollforward
Balance, Beginning of Period	(1,538)	(994)	(2,438)	(1,455)
Net Investment Income	0	0	0	0
Net Investment Gains (Losses)	0	0	0	0
Net Derivative Gains (Losses)	(383)	(2,216)	592	(1,676)
Other Revenues	0	0	0	0
Policyholder Benefits and Claims	10	67	(8)	46
Other Expenses	0	0	0	0
Other Comprehensive Income (Loss)	(50)	(75)	(2)	(65)
Purchases	0		0
Sales	0		0
Issuances	0		0
Settlements	(113)		(218)
Purchases, Sales, Issuances and Settlements		(78)		(146)
Transfer Into Level 3	0	0	0	0
Transfer Out of Level 3	0	0	0	0
Balance, End of Period	(2,074)	(3,296)	(2,074)	(3,296)
Summary of the portion of unrealized gain loss recorded in earnings for Level 3 assets and liabilities measured on a recurring basis still held at the reporting date
Net Investment Income	0	0	0	0
Net Investment Gains (Losses)	0	0	0	0
Net Derivative Gains (Losses)	(387)	(2,218)	581	(1,682)
Other Revenues	0	0	0	0
Policyholder Benefits and Claims	10	67	(8)	46
Other Expenses	0	0	0	0
Separate account assets [Member]
Fair Value Assets Measured on Recurring Basis Unobservable Input Rollforward
Balance, Beginning of Period	2,004	1,702	1,983	1,797
Net Investment Income	0	0	0	0
Net Investment Gains (Losses)	(4)	1	46	48
Net Derivative Gains (Losses)	0	0	0	0
Other Revenues	0	0	0	0
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	0	0	0	0
Other Comprehensive Income (Loss)	0	1	0	0
Purchases	160		358
Sales	(203)		(364)
Issuances	0		0
Settlements	0		0
Purchases, Sales, Issuances and Settlements		70		(68)
Transfer Into Level 3	1	12	9	49
Transfer Out of Level 3	(122)	(182)	(196)	(222)
Balance, End of Period	1,836	1,604	1,836	1,604
Summary of the portion of unrealized gain loss recorded in earnings for Level 3 assets and liabilities measured on a recurring basis still held at the reporting date
Net Investment Income	0	0	0	0
Net Investment Gains (Losses)	0	0	0	0
Net Derivative Gains (Losses)	0	0	0	0
Other Revenues	0	0	0	0
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	0	0	0	0
Long Term Debt Of Consolidated Securitization Entities Estimated Fair Value [Member]
Fair Value Assets Measured on Recurring Basis Unobservable Input Rollforward
Balance, Beginning of Period	(138)	(220)	(184)	0
Net Investment Income	0	0	0	0
Net Investment Gains (Losses)	(53)	(1)	(7)	11
Net Derivative Gains (Losses)	0	0	0	0
Other Revenues	0	0	0	0
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	0	0	0	0
Other Comprehensive Income (Loss)	0	0	0	0
Purchases	0		0
Sales	0		0
Issuances	0		0
Settlements	57		57
Purchases, Sales, Issuances and Settlements		0		(232)
Transfer Into Level 3	0	0	0	0
Transfer Out of Level 3	0	0	0	0
Balance, End of Period	(134)	(221)	(134)	(221)
Summary of the portion of unrealized gain loss recorded in earnings for Level 3 assets and liabilities measured on a recurring basis still held at the reporting date
Net Investment Income	0	0	0	0
Net Investment Gains (Losses)	(53)	(1)	(7)	11
Net Derivative Gains (Losses)	0	0	0	0
Other Revenues	0	0	0	0
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	0	0	0	0
Foreign government debt securities [Member]
Fair Value Assets Measured on Recurring Basis Unobservable Input Rollforward
Balance, Beginning of Period	3,186	199	3,134	378
Net Investment Income	(1)	2	8	0
Net Investment Gains (Losses)	(5)	(5)	(23)	(6)
Net Derivative Gains (Losses)	0	0	0	0
Other Revenues	0	0	0	0
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	0	0	0	0
Other Comprehensive Income (Loss)	(50)	16	24	20
Purchases	178		385
Sales	(129)		(228)
Issuances	0		0
Settlements	0		0
Purchases, Sales, Issuances and Settlements		69		24
Transfer Into Level 3	199	0	133	0
Transfer Out of Level 3	(217)	(24)	(272)	(159)
Balance, End of Period	3,161	257	3,161	257
Summary of the portion of unrealized gain loss recorded in earnings for Level 3 assets and liabilities measured on a recurring basis still held at the reporting date
Net Investment Income	9	2	16	4
Net Investment Gains (Losses)	(1)	0	(10)	0
Net Derivative Gains (Losses)	0	0	0	0
Other Revenues	0	0	0	0
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	0	0	0	0
Non-redeemable preferred stock [Member]
Fair Value Assets Measured on Recurring Basis Unobservable Input Rollforward
Balance, Beginning of Period	946	1,005	905	1,102
Net Investment Income	0	0	0	0
Net Investment Gains (Losses)	(70)	46	(70)	47
Net Derivative Gains (Losses)	0	0	0	0
Other Revenues	0	0	0	0
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	0	0	0	0
Other Comprehensive Income (Loss)	71	(51)	101	(33)
Purchases	2		3
Sales	(295)		(296)
Issuances	0		0
Settlements	0		0
Purchases, Sales, Issuances and Settlements		(153)		(265)
Transfer Into Level 3	0	0	11	0
Transfer Out of Level 3	0	(2)	0	(6)
Balance, End of Period	654	845	654	845
Summary of the portion of unrealized gain loss recorded in earnings for Level 3 assets and liabilities measured on a recurring basis still held at the reporting date
Net Investment Income	0	0	0	0
Net Investment Gains (Losses)	(32)	0	(32)	0
Net Derivative Gains (Losses)	0	0	0	0
Other Revenues	0	0	0	0
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	0	0	0	0
Actively traded securities [Member]
Fair Value Assets Measured on Recurring Basis Unobservable Input Rollforward
Balance, Beginning of Period	40	8	10	32
Net Investment Income	0	0	0	0
Net Investment Gains (Losses)	0	0	0	0
Net Derivative Gains (Losses)	0	0	0	0
Other Revenues	0	0	0	0
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	0	0	0	0
Other Comprehensive Income (Loss)	0	0	0	0
Purchases	0		0
Sales	(23)		(8)
Issuances	0		0
Settlements	0		0
Purchases, Sales, Issuances and Settlements		(1)		(25)
Transfer Into Level 3	0	0	0	0
Transfer Out of Level 3	(15)	0	0	0
Balance, End of Period	2	7	2	7
Summary of the portion of unrealized gain loss recorded in earnings for Level 3 assets and liabilities measured on a recurring basis still held at the reporting date
Net Investment Income	0	0	0	0
Net Investment Gains (Losses)	0	0	0	0
Net Derivative Gains (Losses)	0	0	0	0
Other Revenues	0	0	0	0
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	0	0	0	0
FVO general account securities [Member]
Fair Value Assets Measured on Recurring Basis Unobservable Input Rollforward
Balance, Beginning of Period	62	32	77	51
Net Investment Income	4	(3)	8	(4)
Net Investment Gains (Losses)	0	0	0	0
Net Derivative Gains (Losses)	0	0	0	0
Other Revenues	0	0	0	0
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	0	0	0	0
Other Comprehensive Income (Loss)	0	0	0	0
Purchases	0		1
Sales	(12)		(32)
Issuances	0		0
Settlements	0		0
Purchases, Sales, Issuances and Settlements		0		0
Transfer Into Level 3	0	0	0	0
Transfer Out of Level 3	0	0	0	(18)
Balance, End of Period	54	29	54	29
Summary of the portion of unrealized gain loss recorded in earnings for Level 3 assets and liabilities measured on a recurring basis still held at the reporting date
Net Investment Income	2	(3)	5	(4)
Net Investment Gains (Losses)	0	0	0	0
Net Derivative Gains (Losses)	0	0	0	0
Other Revenues	0	0	0	0
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	0	0	0	0
FVO contractholder-directed unit-linked investments [Member]
Fair Value Assets Measured on Recurring Basis Unobservable Input Rollforward
Balance, Beginning of Period	566	0	735	0
Net Investment Income	22	0	54	0
Net Investment Gains (Losses)	0	0	0	0
Net Derivative Gains (Losses)	0	0	0	0
Other Revenues	0	0	0	0
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	0	0	0	0
Other Comprehensive Income (Loss)	0	0	0	0
Purchases	315		325
Sales	(305)		(450)
Issuances	0		0
Settlements	0		0
Purchases, Sales, Issuances and Settlements		0		0
Transfer Into Level 3	35	0	124	0
Transfer Out of Level 3	(10)	0	(165)	0
Balance, End of Period	623	0	623	0
Summary of the portion of unrealized gain loss recorded in earnings for Level 3 assets and liabilities measured on a recurring basis still held at the reporting date
Net Investment Income	23	0	47	0
Net Investment Gains (Losses)	0	0	0	0
Net Derivative Gains (Losses)	0	0	0	0
Other Revenues	0	0	0	0
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	0	0	0	0
Mortgage loans held-for-sale [Member]
Fair Value Assets Measured on Recurring Basis Unobservable Input Rollforward
Balance, Beginning of Period	25	28	24	25
Net Investment Income	0	0	0	0
Net Investment Gains (Losses)	0	0	0	0
Net Derivative Gains (Losses)	0	0	0	0
Other Revenues	(1)	(1)	(3)	(1)
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	0	0	0	0
Other Comprehensive Income (Loss)	0	0	0	0
Purchases	1		1
Sales	0		0
Issuances	0		1
Settlements	0		0
Purchases, Sales, Issuances and Settlements		1		1
Transfer Into Level 3	9	6	13	7
Transfer Out of Level 3	(2)	(8)	(4)	(6)
Balance, End of Period	32	26	32	26
Summary of the portion of unrealized gain loss recorded in earnings for Level 3 assets and liabilities measured on a recurring basis still held at the reporting date
Net Investment Income	0	0	0	0
Net Investment Gains (Losses)	0	0	0	0
Net Derivative Gains (Losses)	0	0	0	0
Other Revenues	(1)	(1)	(3)	(1)
Policyholder Benefits and Claims	0	0	0	0
Other Expenses	$ 0	$ 0	$ 0	$ 0