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Investments (EITF info-Number of securities and unrealized losses) (Details) $ in Millions | Dec. 31, 2020 USD ($) Positions | Dec. 31, 2019 USD ($) Positions
--- | --- | ---
Unrealized losses |  |
Investment Grade Available For Sale Securities with Gross Unrealized Losses | 92.00% |
Ameriprise Financial [Member] |  |
Number of securities |  |
Less than 12 months | Positions | 153 | 255
12 months or more | Positions | 122 | 202
Total | Positions | 275 | 457
Unrealized losses |  |
Less than 12 months | $ | $ (17) | $ (17)
12 months or more | $ | (17) | (20)
Total | $ | $ (34) | $ (37)
Ameriprise Financial [Member] | Corporate debt securities [Member] |  |
Number of securities |  |
Less than 12 months | Positions | 26 | 13
12 months or more | Positions | 11 | 23
Total | Positions | 37 | 36
Unrealized losses |  |
Less than 12 months | $ | $ (1) | $ (1)
12 months or more | $ | (1) | (3)
Total | $ | $ (2) | $ (4)
Ameriprise Financial [Member] | Residential mortgage backed securities [Member] |  |
Number of securities |  |
Less than 12 months | Positions | 72 | 150
12 months or more | Positions | 71 | 118
Total | Positions | 143 | 268
Unrealized losses |  |
Less than 12 months | $ | $ (2) | $ (10)
12 months or more | $ | (2) | (9)
Total | $ | $ (4) | $ (19)
Ameriprise Financial [Member] | Commercial mortgage backed securities [Member] |  |
Number of securities |  |
Less than 12 months | Positions | 35 | 52
12 months or more | Positions | 19 | 31
Total | Positions | 54 | 83
Unrealized losses |  |
Less than 12 months | $ | $ (11) | $ (3)
12 months or more | $ | (10) | (3)
Total | $ | $ (21) | $ (6)
Ameriprise Financial [Member] | Asset backed securities [Member] |  |
Number of securities |  |
Less than 12 months | Positions | 17 | 34
12 months or more | Positions | 13 | 16
Total | Positions | 30 | 50
Unrealized losses |  |
Less than 12 months | $ | $ (3) | $ (3)
12 months or more | $ | (2) | (1)
Total | $ | $ (5) | $ (4)
Ameriprise Financial [Member] | State and municipal obligations [Member] |  |
Number of securities |  |
Less than 12 months | Positions | 2 | 5
12 months or more | Positions | 1 | 4
Total | Positions | 3 | 9
Unrealized losses |  |
Less than 12 months | $ | $ 0 | $ 0
12 months or more | $ | (1) | (2)
Total | $ | $ (1) | $ (2)
Ameriprise Financial [Member] | Foreign government bonds and obligations [Member] |  |
Number of securities |  |
Less than 12 months | Positions | 1 | 1
12 months or more | Positions | 7 | 10
Total | Positions | 8 | 11
Unrealized losses |  |
Less than 12 months | $ | $ 0 | $ 0
12 months or more | $ | (1) | (2)
Total | $ | $ (1) | $ (2)

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