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Investments (Rating info) (Details) - USD ($) $ in Millions | Jun. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Investments |  |  |
Percentage of GNMA, FNMA and FHLMC securities rated AAA |  | 39.00% | 45.00%
Ameriprise Financial [Member] |  |  |
Investments |  |  |
Number of holdings of other than GNMA, FNMA, and FHLMC having greater than 10% of total equity |  | 0 |
Ameriprise Financial [Member] | AAA [Member] |  |  |
Investments |  |  |
Amortized cost |  | $ 18,997 | $ 18,256
Fair value |  | $ 19,324 | $ 18,437
Percent of total fair value |  | 56.00% | 56.00%
Ameriprise Financial [Member] | AA [Member] |  |  |
Investments |  |  |
Amortized cost |  | $ 1,080 | $ 1,113
Fair value |  | $ 1,311 | $ 1,304
Percent of total fair value |  | 4.00% | 4.00%
Ameriprise Financial [Member] | A [Member] |  |  |
Investments |  |  |
Amortized cost |  | $ 3,185 | $ 3,008
Fair value |  | $ 3,724 | $ 3,474
Percent of total fair value |  | 11.00% | 10.00%
Ameriprise Financial [Member] | BBB [Member] |  |  |
Investments |  |  |
Amortized cost |  | $ 7,865 | $ 8,178
Fair value |  | $ 8,870 | $ 9,102
Percent of total fair value |  | 26.00% | 28.00%
Ameriprise Financial [Member] | Below investment grade [Member] |  |  |
Investments |  |  |
Amortized cost | [1] | $ 1,191 | $ 777
Fair value | [1] | $ 1,213 | $ 812
Percent of total fair value |  | 3.00% | 2.00%
Ameriprise Financial [Member] | Total fixed maturities [Member] |  |  |
Investments |  |  |
Amortized cost |  | $ 32,318 | $ 31,332
Fair value |  | $ 34,442 | $ 33,129
Percent of total fair value |  | 100.00% | 100.00%
Ameriprise Financial [Member] | Interest in CLOs managed by the Company [Member] | Below investment grade [Member] |  |  |
Investments |  |  |
Amortized cost |  | $ 4 | $ 5
Fair value |  | $ 3 | $ 6
[1] | The amortized cost and fair value of below investment grade securities includes interest in CLOs managed by the Company of $4 million and $3 million, respectively, as of June 30, 2020, and $5 million and $6 million, respectively, as of December 31, 2019. These securities are not rated but are included in below investment grade due to their risk characteristics.

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