Investments (AFS by Type) (Details 3) (Ameriprise Financial [Member], USD $)	Dec. 31, 2014		Dec. 31, 2013
Investments
Amortized cosst	$ 28,066,000,000		$ 28,839,000,000
Gross unrealized gains	2,121,000,000		1,811,000,000
Gross unrealized losses	(160,000,000)		(340,000,000)
Fair value	30,027,000,000		30,310,000,000
Noncredit OTTI	(7,000,000)	[1]	(26,000,000)	[1]
Security owned and pledged as collateral, fair value	1,300,000,000		2,300,000,000
Corporate debt securities [Member]
Investments
Amortized cosst	15,742,000,000		16,233,000,000
Gross unrealized gains	1,482,000,000		1,330,000,000
Gross unrealized losses	(59,000,000)		(97,000,000)
Fair value	17,165,000,000		17,466,000,000
Noncredit OTTI	3,000,000	[1]	3,000,000	[1]
Residential mortgage backed securities [Member]
Investments
Amortized cosst	6,099,000,000		6,114,000,000
Gross unrealized gains	168,000,000		147,000,000
Gross unrealized losses	(60,000,000)		(137,000,000)
Fair value	6,207,000,000		6,124,000,000
Noncredit OTTI	(15,000,000)	[1]	(33,000,000)	[1]
Commercial mortgage backed securities [Member]
Investments
Amortized cosst	2,513,000,000		2,612,000,000
Gross unrealized gains	120,000,000		141,000,000
Gross unrealized losses	(3,000,000)		(12,000,000)
Fair value	2,630,000,000		2,741,000,000
Asset backed securities [Member]
Investments
Amortized cosst	1,417,000,000		1,459,000,000
Gross unrealized gains	59,000,000		53,000,000
Gross unrealized losses	(6,000,000)		(8,000,000)
Fair value	1,470,000,000		1,504,000,000
State and municipal obligations [Member]
Investments
Amortized cosst	2,008,000,000		2,132,000,000
Gross unrealized gains	257,000,000		106,000,000
Gross unrealized losses	(26,000,000)		(78,000,000)
Fair value	2,239,000,000		2,160,000,000
U.S. government and agencies obligations [Member]
Investments
Amortized cosst	43,000,000		47,000,000
Gross unrealized gains	4,000,000		5,000,000
Fair value	47,000,000		52,000,000
Foreign government bonds and obligations [Member]
Investments
Amortized cosst	236,000,000		235,000,000
Gross unrealized gains	21,000,000		18,000,000
Gross unrealized losses	(6,000,000)		(8,000,000)
Fair value	251,000,000		245,000,000
Common stocks [Member]
Investments
Amortized cosst	8,000,000		7,000,000
Gross unrealized gains	10,000,000		11,000,000
Fair value	18,000,000		18,000,000
Noncredit OTTI	$ 5,000,000	[1]	$ 4,000,000	[1]

[1] Represents the amount of other-than-temporary impairment (“OTTI”) losses in AOCI. Amount includes unrealized gains and losses on impaired securities subsequent to the initial impairment measurement date. These amounts are included in gross unrealized gains and losses as of the end of the period.