For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 42
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9054-108599

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6351-108592

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=123594938&loc=d3e13531-108611

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123594938&loc=d3e13537-108611

Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592

+ Details

Name:	us-gaap_ConcentrationRiskPercentage1
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount excluding accrued interest, of allowance for credit loss on financing receivable.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446

+ Details

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

- Definition

Amount excluding accrued interest, after allowance for credit loss, of financing receivable.

+ References

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount excluding accrued interest, before allowance for credit loss, of financing receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 5
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919230-210447

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 3B
-URI http://asc.fasb.org/extlink&oid=124255953&loc=SL120267963-210447

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- 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

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

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=amp_CommercialRealEstateAndCommercialPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_CommercialRealEstateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementGeographicalAxis=amp_EastNorthCentralMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementGeographicalAxis=amp_EastSouthCentralMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementGeographicalAxis=amp_MiddleAtlanticMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementGeographicalAxis=amp_MountainMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementGeographicalAxis=amp_NewEnglandMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementGeographicalAxis=amp_PacificMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementGeographicalAxis=amp_SouthAtlanticMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementGeographicalAxis=amp_WestNorthCentralMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementGeographicalAxis=amp_WestSouthCentralMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ConcentrationRiskByBenchmarkAxis=amp_CommercialMortgageLoanReceivableMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ConcentrationRiskByTypeAxis=us-gaap_CreditConcentrationRiskMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Financing Receivables - Credit Quality - Commercial Mortgage Loans by Region (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Financing receivables - credit quality information
Less: allowance for loan losses	$ 50	$ 68	$ 51
Commercial Loans
Financing receivables - credit quality information
Less: allowance for loan losses	47	66	$ 51
Commercial Loans \| Commercial mortgage loans
Financing receivables - credit quality information
Loans	1,916	2,725
Less: allowance for loan losses	12	29
Total loans	1,904	2,696
Commercial Loans \| Commercial mortgage loans \| East North Central
Financing receivables - credit quality information
Loans	194	259
Commercial Loans \| Commercial mortgage loans \| East South Central
Financing receivables - credit quality information
Loans	57	115
Commercial Loans \| Commercial mortgage loans \| Middle Atlantic
Financing receivables - credit quality information
Loans	122	178
Commercial Loans \| Commercial mortgage loans \| Mountain
Financing receivables - credit quality information
Loans	119	247
Commercial Loans \| Commercial mortgage loans \| New England
Financing receivables - credit quality information
Loans	28	54
Commercial Loans \| Commercial mortgage loans \| Pacific
Financing receivables - credit quality information
Loans	627	825
Commercial Loans \| Commercial mortgage loans \| South Atlantic
Financing receivables - credit quality information
Loans	497	681
Commercial Loans \| Commercial mortgage loans \| West North Central
Financing receivables - credit quality information
Loans	141	198
Commercial Loans \| Commercial mortgage loans \| West South Central
Financing receivables - credit quality information
Loans	$ 131	$ 168
Total commercial mortgage loans \| Credit concentration risk \| Commercial Loans \| Commercial mortgage loans
Financing receivables - credit quality information
Percentage of total	100.00%	100.00%
Total commercial mortgage loans \| Credit concentration risk \| Commercial Loans \| Commercial mortgage loans \| East North Central
Financing receivables - credit quality information
Percentage of total	10.00%	10.00%
Total commercial mortgage loans \| Credit concentration risk \| Commercial Loans \| Commercial mortgage loans \| East South Central
Financing receivables - credit quality information
Percentage of total	3.00%	4.00%
Total commercial mortgage loans \| Credit concentration risk \| Commercial Loans \| Commercial mortgage loans \| Middle Atlantic
Financing receivables - credit quality information
Percentage of total	6.00%	7.00%
Total commercial mortgage loans \| Credit concentration risk \| Commercial Loans \| Commercial mortgage loans \| Mountain
Financing receivables - credit quality information
Percentage of total	6.00%	9.00%
Total commercial mortgage loans \| Credit concentration risk \| Commercial Loans \| Commercial mortgage loans \| New England
Financing receivables - credit quality information
Percentage of total	2.00%	2.00%
Total commercial mortgage loans \| Credit concentration risk \| Commercial Loans \| Commercial mortgage loans \| Pacific
Financing receivables - credit quality information
Percentage of total	33.00%	30.00%
Total commercial mortgage loans \| Credit concentration risk \| Commercial Loans \| Commercial mortgage loans \| South Atlantic
Financing receivables - credit quality information
Percentage of total	26.00%	25.00%
Total commercial mortgage loans \| Credit concentration risk \| Commercial Loans \| Commercial mortgage loans \| West North Central
Financing receivables - credit quality information
Percentage of total	7.00%	7.00%
Total commercial mortgage loans \| Credit concentration risk \| Commercial Loans \| Commercial mortgage loans \| West South Central
Financing receivables - credit quality information
Percentage of total	7.00%	6.00%