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Investments - Available-for-Sale Securities by Type (Details) - Ameriprise Financial - USD ($) $ in Millions | Mar. 31, 2025 | Dec. 31, 2024 | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | --- | --- | ---
Investments |  |  |  |
Amortized Cost | $ 55,437 | $ 53,926 |  |
Gross Unrealized Gains | 473 | 353 |  |
Gross Unrealized Losses | (1,755) | (2,121) |  |
Allowance for Credit Losses | (5) | (5) | $ (2) | $ (2)
Fair Value | 54,150 | 52,153 |  |
Accrued interest excluded from amortized cost basis | 342 | 326 |  |
Corporate debt securities |  |  |  |
Investments |  |  |  |
Amortized Cost | 15,055 | 14,509 |  |
Gross Unrealized Gains | 270 | 201 |  |
Gross Unrealized Losses | (603) | (711) |  |
Allowance for Credit Losses | 0 | 0 | (1) | (1)
Fair Value | 14,722 | 13,999 |  |
Residential mortgage backed securities |  |  |  |
Investments |  |  |  |
Amortized Cost | 27,338 | 24,396 |  |
Gross Unrealized Gains | 139 | 81 |  |
Gross Unrealized Losses | (925) | (1,133) |  |
Allowance for Credit Losses | 0 | 0 |  |
Fair Value | 26,552 | 23,344 |  |
Commercial mortgage backed securities |  |  |  |
Investments |  |  |  |
Amortized Cost | 4,636 | 5,339 |  |
Gross Unrealized Gains | 9 | 10 |  |
Gross Unrealized Losses | (177) | (219) |  |
Allowance for Credit Losses | (4) | (4) | 0 | 0
Fair Value | 4,464 | 5,126 |  |
Asset backed securities |  |  |  |
Investments |  |  |  |
Amortized Cost | 5,398 | 6,451 |  |
Gross Unrealized Gains | 19 | 30 |  |
Gross Unrealized Losses | (33) | (39) |  |
Allowance for Credit Losses | 0 | 0 |  |
Fair Value | 5,384 | 6,442 |  |
State and municipal obligations |  |  |  |
Investments |  |  |  |
Amortized Cost | 585 | 629 |  |
Gross Unrealized Gains | 36 | 29 |  |
Gross Unrealized Losses | (17) | (19) |  |
Allowance for Credit Losses | (1) | (1) | $ (1) | $ (1)
Fair Value | 603 | 638 |  |
U.S. government and agency obligations |  |  |  |
Investments |  |  |  |
Amortized Cost | 2,412 | 2,589 |  |
Gross Unrealized Gains | 0 | 2 |  |
Gross Unrealized Losses | 0 | 0 |  |
Allowance for Credit Losses | 0 | 0 |  |
Fair Value | 2,412 | 2,591 |  |
Foreign government bonds and obligations |  |  |  |
Investments |  |  |  |
Amortized Cost | 13 | 13 |  |
Gross Unrealized Gains | 0 | 0 |  |
Gross Unrealized Losses | 0 | 0 |  |
Allowance for Credit Losses | 0 | 0 |  |
Fair Value | $ 13 | $ 13 |  |

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