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Investments - Available-for-Sale Securities by Type (Details) - Ameriprise Financial - USD ($) $ in Millions | Mar. 31, 2022 | Dec. 31, 2021 | Mar. 31, 2021 | Dec. 31, 2020
--- | --- | --- | --- | ---
Investments |  |  |  |
Amortized Cost | $ 32,433 | $ 30,541 |  |
Gross Unrealized Gains | 868 | 1,644 |  |
Gross Unrealized Losses | (970) | (134) |  |
Allowance for Credit Losses | (1) | (1) | $ 0 | $ (11)
Fair Value | 32,330 | 32,050 |  |
Accrued interest excluded from amortized cost basis | 156 | 140 |  |
Fair value of investment securities pledged to meet contractual obligations | 3,300 | 3,100 |  |
Fair value of investment securities pledged that may be sold, pledged or rehypothecated by the counterparty | 428 | 314 |  |
Corporate debt securities |  |  |  |
Investments |  |  |  |
Amortized Cost | 9,012 | 8,737 |  |
Gross Unrealized Gains | 667 | 1,243 |  |
Gross Unrealized Losses | (297) | (48) |  |
Allowance for Credit Losses | 0 | 0 | 0 | (10)
Fair Value | 9,382 | 9,932 |  |
Residential mortgage backed securities |  |  |  |
Investments |  |  |  |
Amortized Cost | 12,117 | 10,927 |  |
Gross Unrealized Gains | 17 | 67 |  |
Gross Unrealized Losses | (439) | (50) |  |
Allowance for Credit Losses | 0 | 0 |  |
Fair Value | 11,695 | 10,944 |  |
Commercial mortgage backed securities |  |  |  |
Investments |  |  |  |
Amortized Cost | 5,461 | 4,950 |  |
Gross Unrealized Gains | 3 | 59 |  |
Gross Unrealized Losses | (168) | (23) |  |
Allowance for Credit Losses | 0 | 0 |  |
Fair Value | 5,296 | 4,986 |  |
Asset backed securities |  |  |  |
Investments |  |  |  |
Amortized Cost | 3,676 | 3,639 |  |
Gross Unrealized Gains | 16 | 26 |  |
Gross Unrealized Losses | (54) | (11) |  |
Allowance for Credit Losses | 0 | 0 | 0 | (1)
Fair Value | 3,638 | 3,654 |  |
State and municipal obligations |  |  |  |
Investments |  |  |  |
Amortized Cost | 847 | 850 |  |
Gross Unrealized Gains | 163 | 244 |  |
Gross Unrealized Losses | (8) | (1) |  |
Allowance for Credit Losses | (1) | (1) | $ 0 | $ 0
Fair Value | 1,001 | 1,092 |  |
U.S. government and agencies obligations |  |  |  |
Investments |  |  |  |
Amortized Cost | 1,160 | 1,301 |  |
Gross Unrealized Gains | 0 | 0 |  |
Gross Unrealized Losses | 0 | 0 |  |
Allowance for Credit Losses | 0 | 0 |  |
Fair Value | 1,160 | 1,301 |  |
Foreign government bonds and obligations |  |  |  |
Investments |  |  |  |
Amortized Cost | 83 | 88 |  |
Gross Unrealized Gains | 2 | 5 |  |
Gross Unrealized Losses | (3) | (1) |  |
Allowance for Credit Losses | 0 | 0 |  |
Fair Value | 82 | 92 |  |
Other securities |  |  |  |
Investments |  |  |  |
Amortized Cost | 77 | 49 |  |
Gross Unrealized Gains | 0 | 0 |  |
Gross Unrealized Losses | (1) | 0 |  |
Allowance for Credit Losses | 0 | 0 |  |
Fair Value | $ 76 | $ 49 |  |

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