Financing Receivables - Allowance for Credit Losses (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Rollforward of allowance for credit losses
Beginning balance	$ 59	$ 50
Provisions	8	13	$ (11)
Charge-offs	(4)	(4)	(10)
Recoveries			1
Other			2
Ending balance	63	59	50
Cumulative Effect, Period of Adoption, Adjusted Balance
Rollforward of allowance for credit losses
Beginning balance			68
Commercial Loans
Rollforward of allowance for credit losses
Beginning balance	54	47
Provisions	2	10	(13)
Charge-offs	(2)	(3)	(8)
Recoveries			0
Other			2
Ending balance	54	54	47
Commercial Loans \| Cumulative Effect, Period of Adoption, Adjusted Balance
Rollforward of allowance for credit losses
Beginning balance			66
Commercial Loans \| Receivables
Financing receivables
Accrued interest on loans	19	17
Consumer Loans
Rollforward of allowance for credit losses
Beginning balance	5	3
Provisions	6	3	2
Charge-offs	(2)	(1)	(2)
Recoveries			1
Other			0
Ending balance	$ 9	$ 5	3
Consumer Loans \| Cumulative Effect, Period of Adoption, Adjusted Balance
Rollforward of allowance for credit losses
Beginning balance			$ 2

Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Other Increase (Decrease)

No definition available.

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Namespace Prefix:	amp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3B
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B

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Balance Type:	debit
Period Type:	instant

- References

No definition available.

+ Details

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- Definition

Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479344/326-20-45-1

+ Details

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

Amount, excluding accrued interest, of increase in allowance for credit loss on financing receivable from recovery. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-13

+ Details

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- Definition

Amount, excluding accrued interest, of decrease in allowance for credit loss on financing receivable from writeoff. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-6

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-13

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Balance Type:	debit
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- Definition

Amount, excluding accrued interest, of credit loss expense (reversal of expense) on financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-13

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