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Fair Value of Assets and Liabilities Fair Value of Assets and Liabilities (Level 3 rollforwards-Liabilities) (Details) - Ameriprise Financial [Member] - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Embedded Derivative, Gain (Loss) on Embedded Derivative, Net |  | $ 196 | $ (190) | $ 281
Indexed annuity embedded derivatives [Member] |  |  |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Balance, at the beginning of the period |  | 43 | 14 | 0
Total gains (losses) included in net income | [1] | 4 | 8 | (3)
Issues |  | 3 | 21 | 17
Settlements |  | (1) |  |
Balance, at the end of the period |  | 49 | 43 | 14
IUL embedded derivatives [Member] |  |  |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Balance, at the beginning of the period |  | 881 | 628 | 601
Total gains (losses) included in net income | [1] | 76 | 209 | (9)
Issues |  | 61 | 113 | 90
Settlements |  | (83) | (69) | (54)
Balance, at the end of the period |  | 935 | 881 | 628
Changes in unrealized gains/ (losses) included in income relating to liabilities held at end of period | [1] | 76 | 209 | (9)
GMWB and GMAB embedded derivatives [Member] |  |  |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Balance, at the beginning of the period |  | 763 | 328 | (49)
Total gains (losses) included in net income | [2] | 1,152 | 80 | 49
Issues |  | 362 | 361 | 350
Settlements |  | 39 | (6) | (22)
Balance, at the end of the period |  | 2,316 | 763 | 328
Changes in unrealized gains/ (losses) included in income relating to liabilities held at end of period | [2] | 1,206 | 82 | 47
Structured annuity embedded derivatives [Member] |  |  |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Balance, at the beginning of the period |  | 0 |  |
Total gains (losses) included in net income | [2] | (91) |  |
Issues |  | (21) |  |
Balance, at the end of the period |  | 70 | 0 |
Policyholder account balances, future policy benefits and claims [Member] |  |  |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Balance, at the beginning of the period |  | 1,687 | 970 | 552
Total gains (losses) included in net income |  | 1,323 | 297 | 37
Issues |  | 405 | 495 | 457
Settlements |  | (45) | (75) | (76)
Balance, at the end of the period |  | 3,370 | 1,687 | 970
Changes in unrealized gains/ (losses) included in income relating to liabilities held at end of period |  | 1,282 | 291 | 38
Contingent Consideration Liability [Member] |  |  |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Balance, at the beginning of the period |  | 44 | 30 | 28
Total gains (losses) included in net income | [3] | (12) | (3) | 2
Issues |  | 20 | 18 |
Settlements |  | (9) | 1 |
Balance, at the end of the period |  | $ 43 | $ 44 | $ 30
[1] | Included in interest credited to fixed accounts in the Consolidated Statements of Operations.
[2] | Included in benefits, claims, losses and settlement expenses in the Consolidated Statements of Operations.
[3] | Included in general and administrative expense in the Consolidated Statements of Operations.

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- Definition Net Increase or Decrease in the fair value of the embedded derivative or group of embedded derivatives included in earnings in the period. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 15 -URI http://asc.fasb.org/subtopic&trid=2229187 + Details
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