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Retirement Plans and Profit Sharing Arrangements (Defined Contribution Plan) (Details 8) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Defined Contribution Plan Disclosure [Line Items] |  |  |
Employer matching contribution, percent of employees' gross pay | 5.00% |  |
Ameriprise Financial Inc 401(k) Plan [Member] |  |  |
Defined Contribution Plan Disclosure [Line Items] |  |  |
Employer contribution requisite service period | 60 days |  |
Period of graded schedule for vesting of employer contributions | 5 years |  |
UNITED STATES |  |  |
Defined Contribution Plan Disclosure [Line Items] |  |  |
Defined contribution plan expense | $ 55 | $ 56 | $ 56
Foreign Plan [Member] |  |  |
Defined Contribution Plan Disclosure [Line Items] |  |  |
Defined contribution plan expense | $ 7 | $ 6 | $ 6

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- Definition The minimum period of service for which an individual is required to serve in order to be eligible for contributions under the defined contribution plan. + References No definition available. + Details
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- Definition Period of Graded Schedule for Vesting of Employer Contributions + References No definition available. + Details
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- Definition Amount of cost for defined contribution plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan. + References No definition available. + Details
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- Details
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- Details
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- Details
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