Deferred Policy Acquisition and Sales Inducement Costs (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Deferred policy acquisition costs
Balance at the beginning of the period	$ 1,834	$ 2,165	$ 2,526
Acquisition costs deferred	254	262	241
Amortization charged to income	(240)	(324)	(430)
Effect of unrealized gains and losses	226	(269)	(172)
Classified as held for sale	(743)
Balance at the end of the period	1,331	1,834	2,165
DSI activity relates to fixed annuities and interest-sensitive life contracts
Balance at the beginning of the period	41	41	86
Sales inducements deferred	24	22	7
Amortization charged to income	(7)	(14)	(23)
Effect of unrealized gains and losses	12	(8)	(29)
Classified as held for sale	(28)
Balance at the end of the period	$ 42	$ 41	$ 41