Fair Values of Assets and Liabilities - Significant Unobservable inputs (Details) $ in Millions	Mar. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Significant unobservable inputs used in fair value measurements
Liabilities embedded derivatives, net	$ 2,015	$ 2,862
Ameriprise Financial
Significant unobservable inputs used in fair value measurements
Available-for-Sale securities, at fair value	32,330	32,050
Ameriprise Financial | Corporate debt securities
Significant unobservable inputs used in fair value measurements
Available-for-Sale securities, at fair value	9,382	9,932
Ameriprise Financial | Asset backed securities
Significant unobservable inputs used in fair value measurements
Available-for-Sale securities, at fair value	3,638	3,654
Ameriprise Financial | Level 3 | Corporate debt securities
Significant unobservable inputs used in fair value measurements
Available-for-Sale securities, at fair value	487	502
Ameriprise Financial | Level 3 | Asset backed securities
Significant unobservable inputs used in fair value measurements
Available-for-Sale securities, at fair value	2	2
Ameriprise Financial | Level 3 | Fixed deferred indexed annuities ceded embedded derivatives
Significant unobservable inputs used in fair value measurements
Receivables: embedded derivatives	55	59
Ameriprise Financial | Level 3 | IUL embedded derivatives
Significant unobservable inputs used in fair value measurements
Liabilities embedded derivatives	848	905
Ameriprise Financial | Level 3 | Fixed deferred indexed annuities embedded derivatives
Significant unobservable inputs used in fair value measurements
Liabilities embedded derivatives	52	56
Ameriprise Financial | Level 3 | GMWB and GMAB embedded derivatives
Significant unobservable inputs used in fair value measurements
Liabilities embedded derivatives, net	828	1,486
Ameriprise Financial | Level 3 | Structured variable annuity embedded derivatives
Significant unobservable inputs used in fair value measurements
Liabilities embedded derivatives	280	406
Ameriprise Financial | Level 3 | Contingent consideration liabilities
Significant unobservable inputs used in fair value measurements
Other liabilities, fair value	$ 62	$ 61
Ameriprise Financial | Level 3 | Discounted cash flow | Corporate debt securities | Minimum | Yield/spread to U.S. Treasuries
Significant unobservable inputs used in fair value measurements
Available-for-sale securities, measurement inputs	0.009	0.008
Ameriprise Financial | Level 3 | Discounted cash flow | Corporate debt securities | Maximum | Yield/spread to U.S. Treasuries
Significant unobservable inputs used in fair value measurements
Available-for-sale securities, measurement inputs	0.030	0.024
Ameriprise Financial | Level 3 | Discounted cash flow | Corporate debt securities | Weighted Average | Yield/spread to U.S. Treasuries
Significant unobservable inputs used in fair value measurements
Available-for-sale securities, measurement inputs	0.013	0.011
Ameriprise Financial | Level 3 | Discounted cash flow | Asset backed securities | Annual short-term default rate
Significant unobservable inputs used in fair value measurements
Available-for-sale securities, measurement inputs	0.008
Ameriprise Financial | Level 3 | Discounted cash flow | Asset backed securities | Annual long-term default rate
Significant unobservable inputs used in fair value measurements
Available-for-sale securities, measurement inputs	0.035
Ameriprise Financial | Level 3 | Discounted cash flow | Asset backed securities | Discount rate
Significant unobservable inputs used in fair value measurements
Available-for-sale securities, measurement inputs	0.130	0.120
Ameriprise Financial | Level 3 | Discounted cash flow | Asset backed securities | Constant prepayment rate
Significant unobservable inputs used in fair value measurements
Available-for-sale securities, measurement inputs	0.100	0.100
Ameriprise Financial | Level 3 | Discounted cash flow | Asset backed securities | Loss recovery
Significant unobservable inputs used in fair value measurements
Available-for-sale securities, measurement inputs	0.636	0.636
Ameriprise Financial | Level 3 | Discounted cash flow | Asset backed securities | Minimum | Annual short-term default rate
Significant unobservable inputs used in fair value measurements
Available-for-sale securities, measurement inputs		0.008
Ameriprise Financial | Level 3 | Discounted cash flow | Asset backed securities | Minimum | Annual long-term default rate
Significant unobservable inputs used in fair value measurements
Available-for-sale securities, measurement inputs		0.035
Ameriprise Financial | Level 3 | Discounted cash flow | Asset backed securities | Weighted Average | Annual short-term default rate
Significant unobservable inputs used in fair value measurements
Available-for-sale securities, measurement inputs	0.008	0.008
Ameriprise Financial | Level 3 | Discounted cash flow | Asset backed securities | Weighted Average | Annual long-term default rate
Significant unobservable inputs used in fair value measurements
Available-for-sale securities, measurement inputs	0.035	0.035
Ameriprise Financial | Level 3 | Discounted cash flow | Asset backed securities | Weighted Average | Discount rate
Significant unobservable inputs used in fair value measurements
Available-for-sale securities, measurement inputs	0.130	0.120
Ameriprise Financial | Level 3 | Discounted cash flow | Asset backed securities | Weighted Average | Constant prepayment rate
Significant unobservable inputs used in fair value measurements
Available-for-sale securities, measurement inputs	0.100	0.100
Ameriprise Financial | Level 3 | Discounted cash flow | Asset backed securities | Weighted Average | Loss recovery
Significant unobservable inputs used in fair value measurements
Available-for-sale securities, measurement inputs	0.636	0.636
Ameriprise Financial | Level 3 | Discounted cash flow | Fixed deferred indexed annuities ceded embedded derivatives | Minimum | Surrender rate
Significant unobservable inputs used in fair value measurements
Embedded derivative asset, measurement input	0.000	0.000
Ameriprise Financial | Level 3 | Discounted cash flow | Fixed deferred indexed annuities ceded embedded derivatives | Maximum | Surrender rate
Significant unobservable inputs used in fair value measurements
Embedded derivative asset, measurement input	0.668	0.668
Ameriprise Financial | Level 3 | Discounted cash flow | Fixed deferred indexed annuities ceded embedded derivatives | Weighted Average | Surrender rate
Significant unobservable inputs used in fair value measurements
Embedded derivative asset, measurement input	0.014	0.014
Ameriprise Financial | Level 3 | Discounted cash flow | IUL embedded derivatives | Nonperformance risk
Significant unobservable inputs used in fair value measurements
Embedded derivative liability, measurement input	0.0085	0.0065
Ameriprise Financial | Level 3 | Discounted cash flow | IUL embedded derivatives | Weighted Average | Nonperformance risk
Significant unobservable inputs used in fair value measurements
Embedded derivative liability, measurement input	0.0085	0.0065
Ameriprise Financial | Level 3 | Discounted cash flow | Fixed deferred indexed annuities embedded derivatives | Nonperformance risk
Significant unobservable inputs used in fair value measurements
Embedded derivative liability, measurement input	0.0085	0.0065
Ameriprise Financial | Level 3 | Discounted cash flow | Fixed deferred indexed annuities embedded derivatives | Minimum | Surrender rate
Significant unobservable inputs used in fair value measurements
Embedded derivative liability, measurement input	0.000	0.000
Ameriprise Financial | Level 3 | Discounted cash flow | Fixed deferred indexed annuities embedded derivatives | Maximum | Surrender rate
Significant unobservable inputs used in fair value measurements
Embedded derivative liability, measurement input	0.668	0.668
Ameriprise Financial | Level 3 | Discounted cash flow | Fixed deferred indexed annuities embedded derivatives | Weighted Average | Surrender rate
Significant unobservable inputs used in fair value measurements
Embedded derivative liability, measurement input	0.014	0.014
Ameriprise Financial | Level 3 | Discounted cash flow | Fixed deferred indexed annuities embedded derivatives | Weighted Average | Nonperformance risk
Significant unobservable inputs used in fair value measurements
Embedded derivative liability, measurement input	0.0085	0.0065
Ameriprise Financial | Level 3 | Discounted cash flow | GMWB and GMAB embedded derivatives | Nonperformance risk
Significant unobservable inputs used in fair value measurements
Embedded derivative liability, net, measurement input	0.0085	0.0065
Ameriprise Financial | Level 3 | Discounted cash flow | GMWB and GMAB embedded derivatives | Minimum | Surrender rate
Significant unobservable inputs used in fair value measurements
Embedded derivative liability, net, measurement input	0.001	0.001
Ameriprise Financial | Level 3 | Discounted cash flow | GMWB and GMAB embedded derivatives | Minimum | Utilization of guaranteed withdrawals
Significant unobservable inputs used in fair value measurements
Embedded derivative liability, net, measurement input	0.000	0.000
Ameriprise Financial | Level 3 | Discounted cash flow | GMWB and GMAB embedded derivatives | Minimum | Market volatility
Significant unobservable inputs used in fair value measurements
Embedded derivative liability, net, measurement input	0.043	0.043
Ameriprise Financial | Level 3 | Discounted cash flow | GMWB and GMAB embedded derivatives | Maximum | Surrender rate
Significant unobservable inputs used in fair value measurements
Embedded derivative liability, net, measurement input	0.557	0.557
Ameriprise Financial | Level 3 | Discounted cash flow | GMWB and GMAB embedded derivatives | Maximum | Utilization of guaranteed withdrawals
Significant unobservable inputs used in fair value measurements
Embedded derivative liability, net, measurement input	0.480	0.480
Ameriprise Financial | Level 3 | Discounted cash flow | GMWB and GMAB embedded derivatives | Maximum | Market volatility
Significant unobservable inputs used in fair value measurements
Embedded derivative liability, net, measurement input	0.165	0.168
Ameriprise Financial | Level 3 | Discounted cash flow | GMWB and GMAB embedded derivatives | Weighted Average | Surrender rate
Significant unobservable inputs used in fair value measurements
Embedded derivative liability, net, measurement input	0.036	0.036
Ameriprise Financial | Level 3 | Discounted cash flow | GMWB and GMAB embedded derivatives | Weighted Average | Nonperformance risk
Significant unobservable inputs used in fair value measurements
Embedded derivative liability, net, measurement input	0.0085	0.0065
Ameriprise Financial | Level 3 | Discounted cash flow | GMWB and GMAB embedded derivatives | Weighted Average | Utilization of guaranteed withdrawals
Significant unobservable inputs used in fair value measurements
Embedded derivative liability, net, measurement input	0.106	0.106
Ameriprise Financial | Level 3 | Discounted cash flow | GMWB and GMAB embedded derivatives | Weighted Average | Market volatility
Significant unobservable inputs used in fair value measurements
Embedded derivative liability, net, measurement input	0.109	0.108
Ameriprise Financial | Level 3 | Discounted cash flow | Structured variable annuity embedded derivatives | Nonperformance risk
Significant unobservable inputs used in fair value measurements
Embedded derivative liability, measurement input	0.0085	0.0065
Ameriprise Financial | Level 3 | Discounted cash flow | Structured variable annuity embedded derivatives | Minimum | Surrender rate
Significant unobservable inputs used in fair value measurements
Embedded derivative liability, measurement input	0.008	0.008
Ameriprise Financial | Level 3 | Discounted cash flow | Structured variable annuity embedded derivatives | Maximum | Surrender rate
Significant unobservable inputs used in fair value measurements
Embedded derivative liability, measurement input	0.400	0.400
Ameriprise Financial | Level 3 | Discounted cash flow | Structured variable annuity embedded derivatives | Weighted Average | Surrender rate
Significant unobservable inputs used in fair value measurements
Embedded derivative liability, measurement input	0.009	0.009
Ameriprise Financial | Level 3 | Discounted cash flow | Structured variable annuity embedded derivatives | Weighted Average | Nonperformance risk
Significant unobservable inputs used in fair value measurements
Embedded derivative liability, measurement input	0.0085	0.0065
Ameriprise Financial | Level 3 | Discounted cash flow | Contingent consideration liabilities | Minimum | Discount rate
Significant unobservable inputs used in fair value measurements
Other liabilities, measurement input	0.000	0.000
Ameriprise Financial | Level 3 | Discounted cash flow | Contingent consideration liabilities | Maximum | Discount rate
Significant unobservable inputs used in fair value measurements
Other liabilities, measurement input	0.000	0.000
Ameriprise Financial | Level 3 | Discounted cash flow | Contingent consideration liabilities | Weighted Average | Discount rate
Significant unobservable inputs used in fair value measurements
Other liabilities, measurement input	0.000	0.000