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Investments - Summary of Net Investment Income (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Summary of Net investment income
Net investment income	$ 3,648	$ 3,206	$ 1,474
Ameriprise Financial
Summary of Net investment income
Investment income on fixed maturities	3,039	2,637	1,320
Net realized gains (losses)	(18)	(27)	(87)
Other	420	415	139
Consolidated investment entities
Summary of Net investment income
Net investment income	$ 207	$ 181	$ 102

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Amount, after investment expense, of income earned from investments in securities and real estate. Includes, but is not limited to, real estate investment, policy loans, dividends, and interest. Includes realized and unrealized gain (loss) on investments.

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Amount of realized gain (loss) on investment.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04(3)(a))
-Publisher FASB
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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.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04(2)(a))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477250/944-220-S99-1

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