Regulatory Requirements - Registered Investment Company Information (Details) - Subsidiaries - Ameriprise Certificate Company - USD ($) $ in Billions	Dec. 31, 2021	Dec. 31, 2020
Investment company information
Required qualified assets under Investment Company Act of 1940	$ 5.3	$ 6.8
Actual amount of qualified assets	$ 5.7	$ 7.2

Represents the minimum amount of qualified assets (as that term is defined in Section 28(b) of the Investment Company Act of 1940 Act) required to be held by an investment company under the Investment Company Act.

No definition available.

Name:	amp_InvestmentCompanyRequiredQualifiedAssetsAmount
Namespace Prefix:	amp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant