Variable Annuity and Insurance Guarantees Variable Annuity and Insurance Guarantees (Details 2) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
GMDB and GGU
Changes in additional liabilities for variable annuity and insurance guarantees
Balance, at the beginning of the period	$ 4		$ 4
Incurred claims	1		1
Paid claims	(1)		(1)
Balance, at the end of the period	4		4
GMIB
Changes in additional liabilities for variable annuity and insurance guarantees
Balance, at the beginning of the period	6		9
Incurred claims
Paid claims
Balance, at the end of the period	6		9
Variable annuity guaranteed minimum withdrawal benefits (GMWB)
Changes in additional liabilities for variable annuity and insurance guarantees
Balance, at the beginning of the period	(383)		799
Incurred claims	116	[1]	(480)	[1]
Paid claims
Balance, at the end of the period	(267)		319
Variable annuity guaranteed minimum accumulation benefits (GMAB)
Changes in additional liabilities for variable annuity and insurance guarantees
Balance, at the beginning of the period	(62)		103
Incurred claims	(7)	[1]	(80)	[1]
Paid claims
Balance, at the end of the period	(69)		23
UL
Changes in additional liabilities for variable annuity and insurance guarantees
Balance, at the beginning of the period	206		155
Incurred claims	11		17
Paid claims	4		(3)
Balance, at the end of the period	$ 221		$ 169

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