v3.26.1
Derivatives and Hedging Activities - Derivatives Not Designated as Hedges Impact (Details) - Not designated as hedging instruments - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Income Statement Location [Axis]: us-gaap:GeneralAndAdministrativeExpense        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) $ 1 $ 35 $ (1) $ 42
Income Statement Location [Axis]: us-gaap:GeneralAndAdministrativeExpense | Interest rate contracts        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 0 0 0 0
Income Statement Location [Axis]: us-gaap:GeneralAndAdministrativeExpense | Equity contracts        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 2 10 3 5
Income Statement Location [Axis]: us-gaap:GeneralAndAdministrativeExpense | Credit contracts        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 0 0 0 0
Income Statement Location [Axis]: us-gaap:GeneralAndAdministrativeExpense | Foreign exchange contracts        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) (1) 25 (4) 37
Income Statement Location [Axis]: us-gaap:GeneralAndAdministrativeExpense | IUL embedded derivatives        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 0 0 0 0
Income Statement Location [Axis]: us-gaap:GeneralAndAdministrativeExpense | Fixed deferred indexed annuity and deposit receivables embedded derivatives        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 0 0 0 0
Income Statement Location [Axis]: us-gaap:GeneralAndAdministrativeExpense | Structured variable annuity embedded derivatives        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 0 0 0 0
Income Statement Location [Axis]: us-gaap:GeneralAndAdministrativeExpense | SMC embedded derivatives        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 0 0 0 0
Income Statement Location [Axis]: us-gaap:InterestCreditedToPolicyholdersAccountBalances        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) (8) 55 (16) 57
Income Statement Location [Axis]: us-gaap:InterestCreditedToPolicyholdersAccountBalances | Interest rate contracts        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 0 0 0 0
Income Statement Location [Axis]: us-gaap:InterestCreditedToPolicyholdersAccountBalances | Equity contracts        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 83 71 58 42
Income Statement Location [Axis]: us-gaap:InterestCreditedToPolicyholdersAccountBalances | Credit contracts        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 0 0 0 0
Income Statement Location [Axis]: us-gaap:InterestCreditedToPolicyholdersAccountBalances | Foreign exchange contracts        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 0 0 0 0
Income Statement Location [Axis]: us-gaap:InterestCreditedToPolicyholdersAccountBalances | IUL embedded derivatives        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) (99) (27) (76) 5
Income Statement Location [Axis]: us-gaap:InterestCreditedToPolicyholdersAccountBalances | Fixed deferred indexed annuity and deposit receivables embedded derivatives        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 8 11 2 10
Income Statement Location [Axis]: us-gaap:InterestCreditedToPolicyholdersAccountBalances | Structured variable annuity embedded derivatives        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 0 0 0 0
Income Statement Location [Axis]: us-gaap:InterestCreditedToPolicyholdersAccountBalances | SMC embedded derivatives        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 0 0 0 0
Income Statement Location [Axis]: us-gaap:InterestExpenseDeposits        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 0 0 0 0
Income Statement Location [Axis]: us-gaap:InterestExpenseDeposits | Interest rate contracts        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 0 0 0 0
Income Statement Location [Axis]: us-gaap:InterestExpenseDeposits | Equity contracts        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 0 2 0 1
Income Statement Location [Axis]: us-gaap:InterestExpenseDeposits | Credit contracts        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 0 0 0 0
Income Statement Location [Axis]: us-gaap:InterestExpenseDeposits | Foreign exchange contracts        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 0 0 0 0
Income Statement Location [Axis]: us-gaap:InterestExpenseDeposits | IUL embedded derivatives        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 0 0 0 0
Income Statement Location [Axis]: us-gaap:InterestExpenseDeposits | Fixed deferred indexed annuity and deposit receivables embedded derivatives        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 0 0 0 0
Income Statement Location [Axis]: us-gaap:InterestExpenseDeposits | Structured variable annuity embedded derivatives        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 0 0 0 0
Income Statement Location [Axis]: us-gaap:InterestExpenseDeposits | SMC embedded derivatives        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 0 (2) 0 (1)
Income Statement Location [Axis]: us-gaap:MarketRiskBenefitChangeInFairValueGainLoss        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) (576) (644) (400) (335)
Income Statement Location [Axis]: us-gaap:MarketRiskBenefitChangeInFairValueGainLoss | Interest rate contracts        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) (102) (52) (130) 68
Income Statement Location [Axis]: us-gaap:MarketRiskBenefitChangeInFairValueGainLoss | Equity contracts        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) (477) (533) (310) (286)
Income Statement Location [Axis]: us-gaap:MarketRiskBenefitChangeInFairValueGainLoss | Credit contracts        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 5 (6) 34 (54)
Income Statement Location [Axis]: us-gaap:MarketRiskBenefitChangeInFairValueGainLoss | Foreign exchange contracts        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) (2) (53) 6 (63)
Income Statement Location [Axis]: us-gaap:MarketRiskBenefitChangeInFairValueGainLoss | IUL embedded derivatives        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 0 0 0 0
Income Statement Location [Axis]: us-gaap:MarketRiskBenefitChangeInFairValueGainLoss | Fixed deferred indexed annuity and deposit receivables embedded derivatives        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 0 0 0 0
Income Statement Location [Axis]: us-gaap:MarketRiskBenefitChangeInFairValueGainLoss | Structured variable annuity embedded derivatives        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 0 0 0 0
Income Statement Location [Axis]: us-gaap:MarketRiskBenefitChangeInFairValueGainLoss | SMC embedded derivatives        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 0 0 0 0
Income Statement Location [Axis]: us-gaap:PolicyholderBenefitsAndClaimsIncurredNet        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) (1) 8 (28) (116)
Income Statement Location [Axis]: us-gaap:PolicyholderBenefitsAndClaimsIncurredNet | Interest rate contracts        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 1 0 (1) 2
Income Statement Location [Axis]: us-gaap:PolicyholderBenefitsAndClaimsIncurredNet | Equity contracts        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 1,991 1,094 1,461 420
Income Statement Location [Axis]: us-gaap:PolicyholderBenefitsAndClaimsIncurredNet | Credit contracts        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 0 0 0 0
Income Statement Location [Axis]: us-gaap:PolicyholderBenefitsAndClaimsIncurredNet | Foreign exchange contracts        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 0 0 0 0
Income Statement Location [Axis]: us-gaap:PolicyholderBenefitsAndClaimsIncurredNet | IUL embedded derivatives        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 0 0 0 0
Income Statement Location [Axis]: us-gaap:PolicyholderBenefitsAndClaimsIncurredNet | Fixed deferred indexed annuity and deposit receivables embedded derivatives        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 0 0 0 0
Income Statement Location [Axis]: us-gaap:PolicyholderBenefitsAndClaimsIncurredNet | Structured variable annuity embedded derivatives        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) (1,993) (1,086) (1,488) (538)
Income Statement Location [Axis]: us-gaap:PolicyholderBenefitsAndClaimsIncurredNet | SMC embedded derivatives        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 0 0 0 0
Income Statement Location [Axis]: amp:DistributionExpenses        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 13 118 28 45
Income Statement Location [Axis]: amp:DistributionExpenses | Interest rate contracts        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 0 0 0 0
Income Statement Location [Axis]: amp:DistributionExpenses | Equity contracts        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 13 116 28 41
Income Statement Location [Axis]: amp:DistributionExpenses | Credit contracts        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 0 2 0 4
Income Statement Location [Axis]: amp:DistributionExpenses | Foreign exchange contracts        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 0 0 0 0
Income Statement Location [Axis]: amp:DistributionExpenses | IUL embedded derivatives        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 0 0 0 0
Income Statement Location [Axis]: amp:DistributionExpenses | Fixed deferred indexed annuity and deposit receivables embedded derivatives        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 0 0 0 0
Income Statement Location [Axis]: amp:DistributionExpenses | Structured variable annuity embedded derivatives        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 0 0 0 0
Income Statement Location [Axis]: amp:DistributionExpenses | SMC embedded derivatives        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 0 0 0 0
Income Statement Location [Axis]: amp:NetInvestmentIncomeAndGainLossOnInvestments        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) (9) (4) (6) (6)
Income Statement Location [Axis]: amp:NetInvestmentIncomeAndGainLossOnInvestments | Interest rate contracts        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 0 0 0 0
Income Statement Location [Axis]: amp:NetInvestmentIncomeAndGainLossOnInvestments | Equity contracts        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) (10) (2) (7) (4)
Income Statement Location [Axis]: amp:NetInvestmentIncomeAndGainLossOnInvestments | Credit contracts        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 0 (2) 0 (2)
Income Statement Location [Axis]: amp:NetInvestmentIncomeAndGainLossOnInvestments | Foreign exchange contracts        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 1 0 1 0
Income Statement Location [Axis]: amp:NetInvestmentIncomeAndGainLossOnInvestments | IUL embedded derivatives        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 0 0 0 0
Income Statement Location [Axis]: amp:NetInvestmentIncomeAndGainLossOnInvestments | Fixed deferred indexed annuity and deposit receivables embedded derivatives        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 0 0 0 0
Income Statement Location [Axis]: amp:NetInvestmentIncomeAndGainLossOnInvestments | Structured variable annuity embedded derivatives        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) 0 0 0 0
Income Statement Location [Axis]: amp:NetInvestmentIncomeAndGainLossOnInvestments | SMC embedded derivatives        
Impact of derivatives not designated as hedging instruments        
Total gain (loss) $ 0 $ 0 $ 0 $ 0