Fair Values of Assets and Liabilities - Changes in Level 3 Liabilities (Details) - RiverSource Life - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Changes in Level 3 liabilities measured at fair value on a recurring basis
Balance, beginning		$ 1,840		$ 3,370
Total (gains) losses included in net income		636		(986)
Issues		87		168
Settlements		6		17
Balance, ending		2,569		2,569
Changes in unrealized (gains) losses in net income relating to liabilities held at the end of the period		537		(1,139)
Net increase (decrease) to pretax income from adjustment for nonperformance risk on fair value of embedded derivatives	$ 194	27	$ 219	(139)
Policyholder account balances, future policy benefits and claims embedded derivatives
Changes in Level 3 liabilities measured at fair value on a recurring basis
Balance, beginning	2,008		2,853
Total (gains) losses included in net income	(652)		(1,490)
Issues	106		197
Settlements	(54)		(152)
Balance, ending	1,408		1,408
Changes in unrealized (gains) losses in net income relating to liabilities held at the end of the period	(642)		(1,469)
Fixed deferred indexed annuity embedded derivatives
Changes in Level 3 liabilities measured at fair value on a recurring basis
Balance, beginning	52	52	56	49
Total (gains) losses included in net income	(6)	2	(9)	6
Issues	0	0	0	0
Settlements	(1)	0	(2)	(1)
Balance, ending	45	54	45	54
Changes in unrealized (gains) losses in net income relating to liabilities held at the end of the period	0	0	0	0
IUL embedded derivatives
Changes in Level 3 liabilities measured at fair value on a recurring basis
Balance, beginning	848	949	905	935
Total (gains) losses included in net income	(108)	8	(140)	37
Issues	8	(1)	8	4
Settlements	(29)	(28)	(54)	(48)
Balance, ending	719	928	719	928
Changes in unrealized (gains) losses in net income relating to liabilities held at the end of the period	(108)	8	(140)	37
GMWB and GMAB embedded derivatives
Changes in Level 3 liabilities measured at fair value on a recurring basis
Balance, beginning	828	715	1,486	2,316
Total (gains) losses included in net income	104	525	(575)	(1,204)
Issues	84	89	171	179
Settlements	(10)	44	(76)	82
Balance, ending	1,006	1,373	1,006	1,373
Changes in unrealized (gains) losses in net income relating to liabilities held at the end of the period	108	529	(563)	(1,176)
Structured variable annuity embedded derivatives
Changes in Level 3 liabilities measured at fair value on a recurring basis
Balance, beginning	280	124	406	70
Total (gains) losses included in net income	(642)	101	(766)	175
Issues	14	(1)	18	(15)
Settlements	(14)	(10)	(20)	(16)
Balance, ending	(362)	214	(362)	214
Changes in unrealized (gains) losses in net income relating to liabilities held at the end of the period	$ (642)	$ 0	$ (766)	$ 0

Net Increase or Decrease in the fair value of the embedded derivative or group of embedded derivatives included in earnings in the period.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 15
-URI https://asc.fasb.org/subtopic&trid=2229187

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Amount of unrealized gain (loss) recognized in income from liability measured at fair value on recurring basis using unobservable input (level 3) and still held.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (d)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

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

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Amount of gain (loss) recognized in income from liability measured at fair value on recurring basis using unobservable input (level 3).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

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Amount of issuances of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

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-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
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Amount of settlements of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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