Closed Block (Details 2) (USD $) In Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Revenues
Premiums	$ 568	$ 608	$ 1,103	$ 1,183
Net investment income	581	560	1,145	1,143
Net investment gains (losses):
Other-than-temporary impairments on fixed maturity securities	(6)	(18)	(7)	(18)
Other than temporary impairments on fixed maturity securities transferred to other comprehensive income (loss)	0	0	0	0
Other net investment gains (losses)	9	26	17	39
Total net investment gains (losses)	3	8	10	21
Net derivative gains (losses)	4	15	(14)	14
Total revenues	1,156	1,191	2,244	2,361
Expenses
Policyholder benefits and claims	746	771	1,435	1,504
Policyholder dividends	296	324	593	645
Other expenses	49	51	98	101
Total expenses	1,091	1,146	2,126	2,250
Revenues, net of expenses before provision for income tax expense (benefit)	65	45	118	111
Provision for income tax expense (benefit)	21	15	38	37
Revenues, net of expenses and provision for income tax expense (benefit)	$ 44	$ 30	$ 80	$ 74