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Investments - Available-for Sale Securities in Continuous Unrealized Loss Position (Details) - Ameriprise Financial $ in Millions | Sep. 30, 2021 USD ($) Positions | Dec. 31, 2020 USD ($) Positions
--- | --- | ---
Number of securities |  |
Less than 12 months | Positions | 274 | 153
12 months or more | Positions | 87 | 122
Total | Positions | 361 | 275
Fair Value |  |
Less than 12 months | $ 5,744 | $ 2,193
12 months or more | 537 | 1,046
Total | 6,281 | 3,239
Unrealized Losses |  |
Less than 12 months | (57) | (17)
12 months or more | (5) | (17)
Total | $ (62) | $ (34)
Available -for-Sale Securities with gross unrealized losses considered investment grade (as a percent) | 93.00% | 92000000.00%
Corporate debt securities |  |
Number of securities |  |
Less than 12 months | Positions | 83 | 26
12 months or more | Positions | 5 | 11
Total | Positions | 88 | 37
Fair Value |  |
Less than 12 months | $ 1,474 | $ 228
12 months or more | 23 | 19
Total | 1,497 | 247
Unrealized Losses |  |
Less than 12 months | (29) | (1)
12 months or more | (2) | (1)
Total | $ (31) | $ (2)
Residential mortgage backed securities |  |
Number of securities |  |
Less than 12 months | Positions | 99 | 72
12 months or more | Positions | 59 | 71
Total | Positions | 158 | 143
Fair Value |  |
Less than 12 months | $ 2,872 | $ 833
12 months or more | 195 | 391
Total | 3,067 | 1,224
Unrealized Losses |  |
Less than 12 months | (18) | (2)
12 months or more | (1) | (2)
Total | $ (19) | $ (4)
Commercial mortgage backed securities |  |
Number of securities |  |
Less than 12 months | Positions | 57 | 35
12 months or more | Positions | 10 | 19
Total | Positions | 67 | 54
Fair Value |  |
Less than 12 months | $ 1,026 | $ 781
12 months or more | 168 | 393
Total | 1,194 | 1,174
Unrealized Losses |  |
Less than 12 months | (8) | (11)
12 months or more | (1) | (10)
Total | $ (9) | $ (21)
Asset backed securities |  |
Number of securities |  |
Less than 12 months | Positions | 12 | 17
12 months or more | Positions | 7 | 13
Total | Positions | 19 | 30
Fair Value |  |
Less than 12 months | $ 317 | $ 344
12 months or more | 147 | 231
Total | 464 | 575
Unrealized Losses |  |
Less than 12 months | (1) | (3)
12 months or more |  | (2)
Total | $ (1) | $ (5)
State and municipal obligations |  |
Number of securities |  |
Less than 12 months | Positions | 18 | 2
12 months or more | Positions |  | 1
Total | Positions | 18 | 3
Fair Value |  |
Less than 12 months | $ 49 | $ 4
12 months or more |  | 4
Total | 49 | 8
Unrealized Losses |  |
Less than 12 months | (1) |
12 months or more |  | (1)
Total | $ (1) | $ (1)
Foreign government bonds and obligations |  |
Number of securities |  |
Less than 12 months | Positions | 5 | 1
12 months or more | Positions | 6 | 7
Total | Positions | 11 | 8
Fair Value |  |
Less than 12 months | $ 6 | $ 3
12 months or more | 4 | 8
Total | 10 | 11
Unrealized Losses |  |
12 months or more | (1) | (1)
Total | $ (1) | $ (1)

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