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Fair Values of Assets and Liabilities - Changes in Level 3 Assets (Details) - Ameriprise Financial - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2022 | Mar. 31, 2021
Available-for-Sale securities |  |
Summary of changes in Level 3 assets measured at fair value on a recurring basis |  |
Balance, beginning | $ 544 | $ 813
Total gains (losses) included in Net income | 0 | (1)
Total gains (losses) included in Other comprehensive income (loss) | (22) | (5)
Purchases | 135 | 124
Settlements | (6) | (2)
Transfers out of Level 3 | (35) |
Balance, ending | 616 | 929
Changes in unrealized gains (losses) included in net income relating to assets held at end of period |  | (1)
Changes in unrealized gains (losses) in other comprehensive income (loss) relating to assets held at end of period | (21) | (5)
Corporate debt securities |  |
Summary of changes in Level 3 assets measured at fair value on a recurring basis |  |
Balance, beginning | 502 | 772
Total gains (losses) included in Net income | 0 | 0
Total gains (losses) included in Other comprehensive income (loss) | (22) | (5)
Purchases | 23 | 46
Settlements | (6) | (1)
Transfers out of Level 3 | 0 |
Balance, ending | 497 | 812
Changes in unrealized gains (losses) included in net income relating to assets held at end of period |  | 0
Changes in unrealized gains (losses) in other comprehensive income (loss) relating to assets held at end of period | (21) | (5)
Commercial mortgage backed securities |  |
Summary of changes in Level 3 assets measured at fair value on a recurring basis |  |
Balance, beginning | 35 |
Total gains (losses) included in Net income | 0 |
Total gains (losses) included in Other comprehensive income (loss) | 0 |
Purchases | 112 |
Settlements | 0 |
Transfers out of Level 3 | (35) |
Balance, ending | 112 |
Changes in unrealized gains (losses) in other comprehensive income (loss) relating to assets held at end of period | 0 |
Residential mortgage backed securities |  |
Summary of changes in Level 3 assets measured at fair value on a recurring basis |  |
Balance, beginning |  | 9
Total gains (losses) included in Net income |  | 0
Total gains (losses) included in Other comprehensive income (loss) |  | 0
Purchases |  | 78
Settlements |  | 0
Balance, ending |  | 87
Changes in unrealized gains (losses) included in net income relating to assets held at end of period |  | 0
Changes in unrealized gains (losses) in other comprehensive income (loss) relating to assets held at end of period |  | 0
Asset backed securities |  |
Summary of changes in Level 3 assets measured at fair value on a recurring basis |  |
Balance, beginning | 7 | 32
Total gains (losses) included in Net income | 0 | (1)
Total gains (losses) included in Other comprehensive income (loss) | 0 | 0
Purchases | 0 | 0
Settlements | 0 | (1)
Transfers out of Level 3 | 0 |
Balance, ending | 7 | 30
Changes in unrealized gains (losses) included in net income relating to assets held at end of period |  | (1)
Changes in unrealized gains (losses) in other comprehensive income (loss) relating to assets held at end of period | 0 | $ 0
Fixed deferred indexed annuities ceded embedded derivatives |  |
Summary of changes in Level 3 assets measured at fair value on a recurring basis |  |
Balance, beginning | 59 |
Total gains (losses) included in Net income | (3) |
Total gains (losses) included in Other comprehensive income (loss) | 0 |
Purchases | 0 |
Settlements | (1) |
Transfers out of Level 3 | 0 |
Balance, ending | 55 |
Changes in unrealized gains (losses) in other comprehensive income (loss) relating to assets held at end of period | $ 0 |

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- Definition Amount of unrealized gain (loss) recognized in other comprehensive income (OCI) from asset measured at fair value on recurring basis using unobservable input (level 3) and still held. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
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- Definition Amount of unrealized gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3) and still held. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
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- Definition Amount of purchases of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
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