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v3.20.4

Derivatives and Hedging Activities (Option Pay/Rec) (Details 3) $ in Millions | Dec. 31, 2020 USD ($)
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Summary of Option Premiums Payable and Receivable [Line Items] |
Premiums payable | $ 932
Premiums receivable | 387
2021 [Member] |
Summary of Option Premiums Payable and Receivable [Line Items] |
Premiums payable | 153
Premiums receivable | 106
2022 [Member] |
Summary of Option Premiums Payable and Receivable [Line Items] |
Premiums payable | 207
Premiums receivable | 205
2023 [Member] |
Summary of Option Premiums Payable and Receivable [Line Items] |
Premiums payable | 51
Premiums receivable | 43
2024 [Member] |
Summary of Option Premiums Payable and Receivable [Line Items] |
Premiums payable | 141
Premiums receivable | 26
2025 [Member] |
Summary of Option Premiums Payable and Receivable [Line Items] |
Premiums payable | 126
Premiums receivable | 7
2026-2028 [Member] |
Summary of Option Premiums Payable and Receivable [Line Items] |
Premiums payable | 254
Premiums receivable | $ 0

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- Definition The amount of payments the entity is scheduled to make for deferred premium option contracts. + References No definition available. + Details
Name: | amp_PremiumsPayableForDerivativesOptionContracts
Namespace Prefix: | amp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Premiums Receivable For Derivatives Option Contracts + References No definition available. + Details
Name: | amp_PremiumsReceivableForDerivativesOptionContracts
Namespace Prefix: | amp_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition -- None. No documentation exists for this element. -- + References No definition available. + Details
Name: | amp_SummaryOfOptionPremiumsPayableAndReceivableLineItems
Namespace Prefix: | amp_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | amp_PremiumsForDerivativeOptionAxis=amp_DueInOneYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | amp_PremiumsForDerivativeOptionAxis=amp_DueInTwoYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | amp_PremiumsForDerivativeOptionAxis=amp_DueInThreeYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | amp_PremiumsForDerivativeOptionAxis=amp_DueInFourYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | amp_PremiumsForDerivativeOptionAxis=amp_DueinFiveYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | amp_PremiumsForDerivativeOptionAxis=amp_DueafterFiveYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |