Variable Annuity and Insurance Guarantees Variable Annuity and Insurance Guarantees (Changes in Additional Liabilities) (Details 3) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013
GMDB and GGU [Member]
Changes in additional liabilities for variable annuity and insurance guarantees [Rollforward]
Balance, at the beginning of the period	$ 4		$ 4
Incurred claims	8		2
Paid claims	(3)		(3)
Balance, at the end of the period	9		3
GMIB [Member]
Changes in additional liabilities for variable annuity and insurance guarantees [Rollforward]
Balance, at the beginning of the period	6		9
Incurred claims	1		(2)
Paid claims
Balance, at the end of the period	7		7
GMWB [Member]
Changes in additional liabilities for variable annuity and insurance guarantees [Rollforward]
Balance, at the beginning of the period	(383)		799
Incurred claims	528	[1]	(908)	[1]
Paid claims
Balance, at the end of the period	145		(109)
GMAB [Member]
Changes in additional liabilities for variable annuity and insurance guarantees [Rollforward]
Balance, at the beginning of the period	(62)		103
Incurred claims	7	[1]	(127)	[1]
Paid claims
Balance, at the end of the period	(55)		(24)
GMWB for life [Member]
Changes in additional liabilities for variable annuity and insurance guarantees [Rollforward]
Balance, at the beginning of the period	206		155
Incurred claims	46		45
Paid claims	(5)		(11)
Balance, at the end of the period	$ 247		$ 189

[1] The incurred claims for GMWB and GMAB represent the total change in the liabilities (contra liabilities).