Fair Values of Assets and Liabilities - Changes in Level 3 Assets (Details) - Ameriprise Financial - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Available-for-Sale securities
Changes in Level 3 assets measured at fair value on a recurring basis
Balance, beginning	$ 544	$ 813	$ 786
Total gains (losses) included in Net income	(1)	(1)	(1)
Total gains (losses) included in Other comprehensive income (loss)	(49)	(10)	15
Purchases	572	221	282
Sales		(1)
Issues		0
Settlements	(91)	(121)	(54)
Transfers into Level 3		170	14
Transfers out of Level 3	(564)	(527)	(229)
Balance, ending	411	544	813
Changes in unrealized gains (losses) in net income relating to assets held at end of period	(1)	(2)	(2)
Changes in unrealized gains (losses) in other comprehensive income (loss) relating to assets held at end of period	(43)	(7)	16
Corporate debt securities
Changes in Level 3 assets measured at fair value on a recurring basis
Balance, beginning	502	772	750
Total gains (losses) included in Net income	(1)	(1)	(1)
Total gains (losses) included in Other comprehensive income (loss)	(44)	(10)	15
Purchases	39	108	62
Sales		0
Issues		0
Settlements	(91)	(119)	(54)
Transfers into Level 3		168	0
Transfers out of Level 3	0	(416)	0
Balance, ending	405	502	772
Changes in unrealized gains (losses) in net income relating to assets held at end of period	(1)	(1)	(1)
Changes in unrealized gains (losses) in other comprehensive income (loss) relating to assets held at end of period	(42)	(8)	16
Residential mortgage backed securities
Changes in Level 3 assets measured at fair value on a recurring basis
Balance, beginning	0	9	17
Total gains (losses) included in Net income	0	0	0
Total gains (losses) included in Other comprehensive income (loss)	(4)	0	1
Purchases	389	78	220
Sales		0
Issues		0
Settlements	0	0	0
Transfers into Level 3		0	0
Transfers out of Level 3	(385)	(87)	(229)
Balance, ending	0	0	9
Changes in unrealized gains (losses) in net income relating to assets held at end of period	0	0	0
Changes in unrealized gains (losses) in other comprehensive income (loss) relating to assets held at end of period	0	0	1
Commercial mortgage backed securities
Changes in Level 3 assets measured at fair value on a recurring basis
Balance, beginning	35	0
Total gains (losses) included in Net income	0	0
Total gains (losses) included in Other comprehensive income (loss)	0	0
Purchases	112	35
Sales		0
Issues		0
Settlements	0	0
Transfers into Level 3		0
Transfers out of Level 3	(147)	0
Balance, ending	0	35	0
Changes in unrealized gains (losses) in net income relating to assets held at end of period	0	0
Changes in unrealized gains (losses) in other comprehensive income (loss) relating to assets held at end of period	0	0
Asset backed securities
Changes in Level 3 assets measured at fair value on a recurring basis
Balance, beginning	7	32	19
Total gains (losses) included in Net income	0	0	0
Total gains (losses) included in Other comprehensive income (loss)	(1)	0	(1)
Purchases	32	0	0
Sales		(1)
Issues		0
Settlements	0	(2)	0
Transfers into Level 3		2	14
Transfers out of Level 3	(32)	(24)	0
Balance, ending	6	7	32
Changes in unrealized gains (losses) in net income relating to assets held at end of period	0	(1)	(1)
Changes in unrealized gains (losses) in other comprehensive income (loss) relating to assets held at end of period	(1)	1	(1)
Fixed deferred indexed annuities ceded embedded derivatives
Changes in Level 3 assets measured at fair value on a recurring basis
Balance, beginning	59	0
Total gains (losses) included in Net income	(8)	3
Total gains (losses) included in Other comprehensive income (loss)	0	0
Purchases	0	0
Sales		0
Issues		57
Settlements	(3)	(1)
Transfers into Level 3		0
Transfers out of Level 3	0	0
Balance, ending	48	59	$ 0
Changes in unrealized gains (losses) in net income relating to assets held at end of period	0	0
Changes in unrealized gains (losses) in other comprehensive income (loss) relating to assets held at end of period	$ 0	$ 0

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

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

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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 asset measured at fair value on recurring basis using unobservable input (level 3).

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

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

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

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

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

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- Definition

Amount of transfer of financial instrument classified as an asset into level 3 of the fair value hierarchy.

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Amount of transfers of financial instrument classified as an asset out of level 3 of the fair value hierarchy.

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

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