Related Party Transactions (Effects of Affiliated Reinsurance on Statements of Operations) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Premiums:
Net premiums	$ 114	$ 406	$ 265	$ 786
Universal life and investment-type product policy fees:
Net universal life and investment-type product policy fees	556	575	1,120	1,119
Other revenues:
Other revenues	138	125	295	248
Policyholder benefits and claims:
Net policyholder benefits and claims	359	636	773	1,225
Interest credited to policyholder account balances:
Net interest credited to policyholder account balances	259	167	523	606
Other expenses:
Total other expenses	368	887	776	1,344
Affiliated Entity [Member]
Universal life and investment-type product policy fees:
Net universal life and investment-type product policy fees	52	44	102	86
Other revenues:
Other revenues	46	40	92	80
Other expenses:
Total other expenses	372	423	816	862
Affiliated Entity [Member] | Assumed Reinsurance [Member]
Premiums:
Assumed	2	3	6	6
Universal life and investment-type product policy fees:
Reinsurance assumed	11	23	32	44
Other revenues:
Reinsurance assumed	0	0	0	0
Policyholder benefits and claims:
Reinsurance assumed	2	3	5	6
Interest credited to policyholder account balances:
Reinsurance assumed	18	17	36	35
Other expenses:
Reinsurance assumed	3	8	12	21
Affiliated Entity [Member] | Ceded Reinsurance [Member]
Premiums:
Reinsurance ceded	(156)	(105)	(303)	(197)
Universal life and investment-type product policy fees:
Reinsurance ceded	(168)	(94)	(302)	(205)
Other revenues:
Reinsurance ceded	75	67	167	134
Policyholder benefits and claims:
Reinsurance ceded	(193)	(187)	(386)	(320)
Interest credited to policyholder account balances:
Reinsurance ceded	(32)	(26)	(61)	(52)
Other expenses:
Reinsurance ceded	12	83	33	98
Affiliated Entity [Member] | Reinsurance [Member]
Premiums:
Net premiums	(154)	(102)	(297)	(191)
Universal life and investment-type product policy fees:
Net universal life and investment-type product policy fees	(157)	(71)	(270)	(161)
Other revenues:
Other revenues	75	67	167	134
Policyholder benefits and claims:
Net policyholder benefits and claims	(191)	(184)	(381)	(314)
Interest credited to policyholder account balances:
Net interest credited to policyholder account balances	(14)	(9)	(25)	(17)
Other expenses:
Total other expenses	$ 15	$ 91	$ 45	$ 119