Reinsurance - Guaranteed Minimum Death Benefit Contracts, Future Policy Benefits (Details) (Variable Annuity [Member], Guaranteed Minimum Death Benefit [Member], USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Variable Annuity [Member] | Guaranteed Minimum Death Benefit [Member]
Activity in future policy benefits reserves for GMDB business [Line Items]
Future Policy Benefit Reserve, beginning balance, gross	$ 1,090	$ 1,170	$ 1,138
Claims payable, beginning balance, gross	24	40	37
Less: Reinsurance and other amounts recoverable	42	53	51
Balance at January 1, net	1,072	1,157	1,124
Add: Incurred benefits	699	17	138
Less: Paid benefits	1,674	102	105
Ending balance, net	97	1,072	1,157
Claims payable, ending balance, gross	18	24	40
Add: Reinsurance and other amounts recoverable	1,317	42	53
Future Policy Benefit Reserve, ending balance, gross	1,396	1,090	1,170
Guaranteed Minimum Death Benefit Contracts Reserve Strengthening [Abstract]
Pre Tax Guaranteed Benefits Reserve Strengthening		43	70
After Tax Guaranteed Benefits Reserve Strengthening		$ 27	$ 45