Document and Entity Information Document and Entity Information (Explanatory Note) (Details) (USD $)	0 Months Ended	3 Months Ended		9 Months Ended			0 Months Ended	3 Months Ended	9 Months Ended
	Sep. 05, 2012	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Feb. 21, 2013	Jan. 02, 2013 Individual Life [Member]	Sep. 30, 2012 Individual Life [Member]	Sep. 30, 2012 Individual Life [Member]
Document Information [Line Items]
Document Period End Date				Sep. 30, 2012
Entity Common Stock, Shares Outstanding						436,598,310
Fees and Commissions							$ 615
Reinsurance, Effect on Operations	400
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal			0	533,000,000	0			533,000,000	533,000,000
Goodwill, Impairment Loss		342,000,000		(342,000,000)
Loss Contingency, Loss in Period									$ 191,000,000