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Investments - Net Realized Gains and Losses on Available-for-Sale Securities (Details) - Ameriprise Financial - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Net realized gains and losses on Available-for-Sale securities |  |  |
Gross realized investment gains | $ 28 | $ 582 | $ 25
Gross realized investment losses | (22) | (7) | (3)
Credit losses | (21) | (1) | (11)
Other impairments | (70) | (13) | 0
Total | $ (85) | $ 561 | $ 11

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- Definition Amount of realized gain on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27357-111563 + Details
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