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Regulatory Requirements - Fund Transfer Restrictions and General Insurance Company Information (Details) - Subsidiaries - USD ($)
$ in Millions
12 Months Ended 24 Months Ended
Feb. 23, 2022
Dec. 31, 2021
Jun. 30, 2019
Dec. 31, 2020
Entities subject to regulatory requirements        
Regulatory Requirements        
Aggregate amount of unrestricted net assets   $ 1,900    
RiverSource Life Insurance Company        
Regulatory Requirements        
Nonaccelerated amortization period for deferred gains or losses from designated derivatives     10 years  
Statutory unassigned surplus   $ 175   $ 1,300
Percentage of previous year-end statutory capital and surplus   10.00%    
Statutory capital and surplus   $ 3,400   $ 4,800
Subsequent event | Expected | RiverSource Life Insurance Company        
Regulatory Requirements        
Cash dividend declared $ 300