Name:	amp_AccumulatedOtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostCreditAfterTax
Namespace Prefix:	amp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The after-tax net amount of gains and losses that are not yet recognized as a component of net periodic benefit cost, and that are recognized as increases or decreases in other comprehensive income as they arise. Gains and losses are due to changes in the value of either the benefit obligation or the plan assets resulting from experience different from that assumed or from a change in an actuarial assumption, or the consequence of a decision to temporarily deviate from the substantive plan.

No definition available.

Name:	amp_AccumulatedOtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossAfterTax
Namespace Prefix:	amp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Target allocation of investments of this type to total plan assets in pooled pension funds presented on a weighted average basis.

No definition available.

Name:	amp_DefinedBenefitPlanTargetPlanAssetInPooledPensionFundsAllocations
Namespace Prefix:	amp_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Represents the minimum crediting rate to employees' balances.

No definition available.

Name:	amp_MinimumCreditingRate
Namespace Prefix:	amp_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Represents the percentage of eligible contribution that is credited each pay period to employees' account balances.

No definition available.

Name:	amp_PercentageOfEligibleContribution
Namespace Prefix:	amp_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Represents the threshold percentage of the projected benefit obligation or the market-related value of assets for which actuarial gains and losses are amortized on a straight-line basis over the expected average remaining service period of active participants.

No definition available.

Name:	amp_PercentageThresholdForAmortizationOfActuarialGainsLosses
Namespace Prefix:	amp_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Represents the period for graded schedule for vesting match contributions.

No definition available.

Name:	amp_PeriodOfGradedScheduleForVesting
Namespace Prefix:	amp_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Represents the range of the difference between the actual allocation and target allocations.

No definition available.

Name:	amp_RangeOfDifferenceInActualAllocationAndTargetAllocations
Namespace Prefix:	amp_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Represents the yield period for U.S. Treasury Note, the average of which is used to credit employees' balances.

No definition available.

Name:	amp_YieldPeriodOfUSTreasuryNote
Namespace Prefix:	amp_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

For defined benefit pension plans, the actuarial present value of benefits (whether vested or nonvested) attributed by the pension benefit formula to employee service rendered before a specified date and based on employee service and compensation (if applicable) before that date. The accumulated benefit obligation differs from the projected benefit obligation in that it includes no assumption about future compensation levels. For plans with flat-benefit or nonpay-related pension benefit formulas, the accumulated benefit obligation and the projected benefit obligation are the same.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Accumulated Benefit Obligation

-URI http://asc.fasb.org/extlink&oid=6503844

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (e)

-URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920

Name:	us-gaap_DefinedBenefitPlanAccumulatedBenefitObligation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Name:	us-gaap_DefinedBenefitPlanAssetsTargetAllocationsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Name:	us-gaap_DefinedBenefitPlanDisclosureLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Amount included in accumulated other comprehensive income (AOCI) related to gain (loss) expected to be recognized as components of net periodic benefit cost for the fiscal year that follows the most recent annual statement of financial position.

No definition available.

Name:	us-gaap_DefinedBenefitPlanFutureAmortizationOfGainLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Amount included in accumulated other comprehensive income (AOCI) related to prior service cost (credit) expected to be recognized as components of net periodic benefit cost for the fiscal year that follows the most recent annual statement of financial position.

No definition available.

Name:	us-gaap_DefinedBenefitPlanFutureAmortizationOfPriorServiceCostCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Target allocation of investments of this type to total plan assets presented on a weighted average basis.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (d)(i)

-URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 5

-Subparagraph (c)(i)

-URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e2446-114920

Name:	us-gaap_DefinedBenefitPlanTargetPlanAssetAllocations
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Name:	us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_DebtSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_EquitySecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_OtherAssetsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis=us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: