Variable Annuity and Insurance Guarantees (Liability rollforward) (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2014		Jun. 30, 2013
GMDB & GGU
Changes in additional liabilities for variable annuity and insurance guarantees
Balance at the beginning of the period	$ 4		$ 4
Incurred claims	2		3
Paid claims	(2)		(2)
Balance at the end of the period	4		5
GMIB
Changes in additional liabilities for variable annuity and insurance guarantees
Balance at the beginning of the period	6		9
Incurred claims	0		0
Paid claims	0		0
Balance at the end of the period	6		9
GMWB
Changes in additional liabilities for variable annuity and insurance guarantees
Balance at the beginning of the period	(383)		799
Incurred claims	252	[1]	(715)	[1]
Balance at the end of the period	(131)		84
GMAB
Changes in additional liabilities for variable annuity and insurance guarantees
Balance at the beginning of the period	(62)		103
Incurred claims	(14)	[1]	(89)	[1]
Balance at the end of the period	(76)		14
UL
Changes in additional liabilities for variable annuity and insurance guarantees
Balance at the beginning of the period	206		155
Incurred claims	31		36
Paid claims	(1)		(7)
Balance at the end of the period	$ 236		$ 184

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