Debt - Balances and Stated Interest Rates (Details) - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024
Debt and stated interest rates
Short-term borrowings	$ 201	$ 201
Ameriprise Financial
Debt and stated interest rates
Finance lease liabilities	6	9
Other	(25)	(17)
Total long-term debt	3,581	2,842
Short-term borrowings	201	201
Total	$ 3,782	$ 3,043
Ameriprise Financial \| Weighted average
Debt and stated interest rates
FHLB advances, Stated interest rate (as a percent)	4.50%	4.60%
Ameriprise Financial \| Senior notes due 2025
Debt and stated interest rates
Long-term debt	$ 500	$ 500
Stated interest rate long-term debt (as a percent)	3.00%	3.00%
Ameriprise Financial \| Senior notes due 2026
Debt and stated interest rates
Long-term debt	$ 500	$ 500
Stated interest rate long-term debt (as a percent)	2.90%	2.90%
Ameriprise Financial \| Senior notes due 2028
Debt and stated interest rates
Long-term debt	$ 600	$ 600
Stated interest rate long-term debt (as a percent)	5.70%	5.70%
Ameriprise Financial \| Senior notes due 2032
Debt and stated interest rates
Long-term debt	$ 500	$ 500
Stated interest rate long-term debt (as a percent)	4.50%	4.50%
Ameriprise Financial \| Senior notes due 2033
Debt and stated interest rates
Long-term debt	$ 750	$ 750
Stated interest rate long-term debt (as a percent)	5.20%	5.20%
Ameriprise Financial \| Senior notes due 2035
Debt and stated interest rates
Long-term debt	$ 750	$ 0
Stated interest rate long-term debt (as a percent)	5.20%	0.00%

Amount of borrowings as of the balance sheet date from the Federal Home Loan Bank, which are primarily used to cover shortages in the required reserve balance and liquidity shortages.

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Amount of unamortized debt discount (premium) and debt issuance costs.

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States the interest rate applicable to Federal Home Loan Bank advances outstanding as of the Balance Sheet date.

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Present value of lessee's discounted obligation for lease payments from finance lease.

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Amount of long-term debt and lease obligation, including portion classified as current.

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The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate.

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