Investments - Rollforward of Allowance for Credit Losses (Details) - Ameriprise Financial - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Rollforward of available-for-Sale securities allowance for credit losses
Beginning Balance	$ 1	$ 11
Charge-offs	0	(11)
Ending Balance	1	0
Corporate debt securities
Rollforward of available-for-Sale securities allowance for credit losses
Beginning Balance	0	10
Charge-offs	0	(10)
Ending Balance	0	0
Asset backed securities
Rollforward of available-for-Sale securities allowance for credit losses
Beginning Balance	0	1
Charge-offs	0	(1)
Ending Balance	0	0
State and municipal obligations
Rollforward of available-for-Sale securities allowance for credit losses
Beginning Balance	1	0
Charge-offs	0	0
Ending Balance	$ 1	$ 0

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

No definition available.

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- Definition

Amount of writeoff of allowance for credit loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 50
-Paragraph 9
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=124269663&loc=SL82922900-210455

+ Details

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- Definition

Amount excluding accrued interest, of allowance for credit loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454

+ Details

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