Closed Block (Revenues and Expenses) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Revenues
Premiums	$ 446	$ 464
Net investment income	530	533
Net investment gains (losses)	0	3
Net derivative gains (losses)	(1)	8
Total revenues	975	1,008
Expenses
Policyholder benefits and claims	624	643
Policyholder dividends	233	242
Other expenses	41	42
Total expenses	898	927
Revenues, net of expenses before provision for income tax expense (benefit)	77	81
Provision for income tax expense (benefit)	27	27
Revenues, net of expenses and provision for income tax expense (benefit)	$ 50	$ 54