Sales Inducements (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Amortization charged to income	$ (6)	$ (11)
Changes in deferred sales inducement
Balance, beginning of period	118	186
Sales inducements deferred	0	3
Amortization - Unlock	3	57
Balance, end of period	38	121
Deferred Sales Inducements, Amortization Expense	6	11
Retirement Plans [Member]
Amortization charged to income	(22)
Changes in deferred sales inducement
Deferred Sales Inducements, Amortization Expense	22
Retirement Plans and Individual Life Businesses [Member]
Amortization charged to income	(71)	0
Changes in deferred sales inducement
Deferred Sales Inducements, Amortization Expense	71	0
Individual Life [Member]
Amortization charged to income	(49)
Changes in deferred sales inducement
Deferred Sales Inducements, Amortization Expense	$ 49