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Financing Receivables (Credit Quality Information Text) (Details) | 6 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Jun. 30, 2020 USD ($) loan | Sep. 30, 2020 USD ($) loan | Dec. 31, 2019 USD ($)
Nonperforming |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Past due loans |  | $ 24,000,000 | $ 25,000,000
Commercial mortgage loans [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Past due loans |  | $ 6,000,000 | 0
Percentage of commercial mortgage loans with highest risk rating less than % |  | 1.00% |
Total loans, gross |  | $ 2,778,000,000 | 2,797,000,000
Impaired Financing Receivable, Unpaid Principal Balance | $ 369 | $ 127,000,000 |
Financing Receivable, Modifications, Number of Contracts | loan | 93 | 25 |
Syndicated loans [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Past due loans |  | $ 6,000,000 | 1,000,000
Total loans, gross |  | 627,000,000 | 543,000,000
Loans to financial advisors [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total loans, gross |  | 693,000,000 |
Allowance for loan losses related to loans to financial advisors no longer affiliated with Ameriprise Financial |  | $ 10,000,000 | $ 10,000,000
Credit Card Receivable [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Credit Card Receivable Percent Past Due |  | 1.00% | 2.00%

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- Definition Represents the percentage of commercial mortgage loans that the company has assigned its highest risk rating. + References No definition available. + Details
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- Definition Number of financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953676-111524 + Details
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