Investments and Cash (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013		Mar. 31, 2012		Dec. 31, 2012
Investments
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses	$ (91)				$ (98)
Net Investment Income
Gross investment income	96		100
Investment expenses	(2)		(2)
Net investment income	94		98
Net Realized Investment Gains (Losses)
Realized gains on investment portfolio	39		9
Realized losses on investment portfolio	(6)		(3)
Other than Temporary Impairment Losses, Investments	(5)	[1]	(5)	[1]
Other-than-temporary impairment (OTTI):
Net realized investment gains (losses)	28		1
Roll Forward of Credit Losses in the Investment Portfolio
Balance, at the beginning of the period	64		47
Additions for credit losses on securities for which an OTTI was not previously recognized	1		2
Additions for credit losses on securities for which an OTTI was previously recognized	4		2
Balance, at the end of the period	69		51
Fixed and Short-term Maturities [Member]
Investments
Accrued investment income	97				97
Fixed maturity securities
Net Investment Income
Gross investment income	79		87
Fixed Maturity Securities purchased or obtained for loss mitigation purposes [Member]
Net Investment Income
Gross investment income	16		12
Other invested assests [Member]
Net Investment Income
Gross investment income	$ 1	[2]	$ 1	[2]

[1] Substantially all amounts relate to the credit component of OTTI securities as opposed to OTTI due to intent to sell.

[2] (1)Net loss on consolidation was $0.5 million in First Quarter 2013 and $6 million in 2012 and recorded in “fair value gains (losses) on FG VIEs” in the consolidated statement of operations.