Reinsurance - Effects of Reinsurance (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Effects of Reinsurance [Line Items]
Ceded premiums and fees	$ 141	$ 125
Reinsurance recoveries	181	(174)
Individual Life Insurance And Annuity [Member]
Effects of Reinsurance [Line Items]
Ceded premiums and fees	45	46
Reinsurance recoveries	99	88
Other Product Segments [Member]
Effects of Reinsurance [Line Items]
Ceded premiums and fees	96	79
Reinsurance recoveries	$ 82	$ (262)