Reinsurance - Effects of Reinsurance (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Effects of Reinsurance [Line Items]
Ceded premiums and fees	$ 118	$ 129	$ 387	$ 403
Reinsurance recoveries	168	199	506	187
Individual Life Insurance And Annuity [Member]
Effects of Reinsurance [Line Items]
Ceded premiums and fees	38	39	127	130
Reinsurance recoveries	46	74	214	256
Other Product Segments [Member]
Effects of Reinsurance [Line Items]
Ceded premiums and fees	80	90	260	273
Reinsurance recoveries	$ 122	$ 125	$ 292	$ (69)