Represents the vesting period under cash award programs.

No definition available.

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

- Definition

Represents the percentage of vesting after four years under the equity participation plan.

+ References

No definition available.

+ Details

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

- Definition

Represents the percentage of vesting after three years under the equity participation plan.

+ References

No definition available.

+ Details

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

- Definition

Represents the percentage of vesting of awards under the equity incentive plan after a number of years.

+ References

No definition available.

+ Details

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

- Definition

Represents the period for cash-out under cash award programs represented by the mandatory call date.

+ References

No definition available.

+ Details

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

- Definition

Aggregate cash paid by the entity during the period to settle equity instruments granted under equity-based payment arrangements.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (k)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

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

- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Details

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

- Details

Name:	us-gaap_PlanNameAxis=amp_EquityIncentivePlanAndEquityParticipationPlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PlanNameAxis=amp_EquityIncentivePlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PlanNameAxis=amp_EquityParticipationPlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Share-Based Compensation (Threadneedle Equity Incentive Plan) (Details 5) (USD $) In Millions, unless otherwise specified	12 Months Ended	23 Months Ended	12 Months Ended
	Dec. 31, 2010	Dec. 31, 2012	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of vesting of awards	100.00%	100.00%
Award vesting period under cash award programs	3 years	2 years 6 months
Period of cash out under cash award programs	6 years
Equity Participation Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Period of cash out under cash award programs			5 years
Percentage of vesting after three years under equity participation plan			50.00%
Percentage of vesting after four years under equity participation plan			50.00%
Equity Participation Plan [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period			3 years
Equity Participation Plan [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period			4 years
Equity Incentive Plan and Equity Participation Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee service share-based compensation, cash flow effect, cash used to settle awards			28	$ 23	$ 31