Debt - Balances and Stated Interest Rates (Details) - USD ($) $ in Millions	Jun. 30, 2023	Mar. 09, 2023	Dec. 31, 2022
Debt and stated interest rates
Short-term borrowings	$ 201		$ 201	[1]
Ameriprise Financial
Debt and stated interest rates
Finance lease liabilities	23		30
Other	(16)		(9)
Total long-term debt	3,557		2,821
Short-term borrowings	201		201
Total	$ 3,758		$ 3,022
Ameriprise Financial | Weighted average
Debt and stated interest rates
FHLB advances, Stated interest rate (as a percent)	5.30%		4.60%
Ameriprise Financial | Senior notes due 2023
Debt and stated interest rates
Long-term debt	$ 750		$ 750
Stated interest rate long-term debt (as a percent)	4.00%		4.00%
Ameriprise Financial | Senior notes due 2024
Debt and stated interest rates
Long-term debt	$ 550		$ 550
Stated interest rate long-term debt (as a percent)	3.70%		3.70%
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 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		$ 0
Stated interest rate long-term debt (as a percent)	5.20%	5.15%	0.00%

[1] Certain prior period amounts have been restated. See Note 3 for more information.