Investments (Contractholder-Directed Equity Securities and FVO Securities) (Details) - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025
Debt and Equity Securities, FV-NI [Line Items]
Debt Securities, Trading, and Equity Securities, FV-NI, Cost	$ 10,609	$ 10,685
Contracted-Directed Equity Securities and FVO Securities, FV-NI, Unrealized Gains (Losses)	2,826	3,274
Contractholder-directed equity securities and fair value option securities, at estimated fair value (includes $1,665 and $1,751, respectively, relating to variable interest entities)	13,435	13,959
Contract-holder Directed Equity Securities
Debt and Equity Securities, FV-NI [Line Items]
Debt Securities, Trading, and Equity Securities, FV-NI, Cost	8,256	8,253
Contracted-Directed Equity Securities and FVO Securities, FV-NI, Unrealized Gains (Losses)	1,999	2,495
Contractholder-directed equity securities and fair value option securities, at estimated fair value (includes $1,665 and $1,751, respectively, relating to variable interest entities)	10,255	10,748
Equity securities
Debt and Equity Securities, FV-NI [Line Items]
Debt Securities, Trading, and Equity Securities, FV-NI, Cost	3,153	3,164
Contracted-Directed Equity Securities and FVO Securities, FV-NI, Unrealized Gains (Losses)	750	855
Contractholder-directed equity securities and fair value option securities, at estimated fair value (includes $1,665 and $1,751, respectively, relating to variable interest entities)	3,903	4,019
Series Mutual Funds and Other
Debt and Equity Securities, FV-NI [Line Items]
Debt Securities, Trading, and Equity Securities, FV-NI, Cost	5,103	5,089
Contracted-Directed Equity Securities and FVO Securities, FV-NI, Unrealized Gains (Losses)	1,249	1,640
Contractholder-directed equity securities and fair value option securities, at estimated fair value (includes $1,665 and $1,751, respectively, relating to variable interest entities)	6,352	6,729
FVO securities
Debt and Equity Securities, FV-NI [Line Items]
Debt Securities, Trading, and Equity Securities, FV-NI, Cost	2,353	2,432
Contracted-Directed Equity Securities and FVO Securities, FV-NI, Unrealized Gains (Losses)	827	779
Contractholder-directed equity securities and fair value option securities, at estimated fair value (includes $1,665 and $1,751, respectively, relating to variable interest entities)	3,180	3,211
Securities held by CFEs
Debt and Equity Securities, FV-NI [Line Items]
Debt Securities, Trading, and Equity Securities, FV-NI, Cost	1,243	1,283
Contracted-Directed Equity Securities and FVO Securities, FV-NI, Unrealized Gains (Losses)	0	0
Contractholder-directed equity securities and fair value option securities, at estimated fair value (includes $1,665 and $1,751, respectively, relating to variable interest entities)	1,243	1,283
General account and other securities
Debt and Equity Securities, FV-NI [Line Items]
Debt Securities, Trading, and Equity Securities, FV-NI, Cost	1,110	1,149
Contracted-Directed Equity Securities and FVO Securities, FV-NI, Unrealized Gains (Losses)	827	779
Contractholder-directed equity securities and fair value option securities, at estimated fair value (includes $1,665 and $1,751, respectively, relating to variable interest entities)	$ 1,937	$ 1,928

Equity and Trading Securities, FV-NI, Unrealized Gains (Losses)

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Cost of investment in debt investment in debt security measured at fair value with change in fair value recognized in net income (trading) and investment in equity security with change in fair value recognized in net income (FV-NI). Excludes equity method investment and investment in equity security without readily determinable fair value.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(2))
-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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6B
-Subparagraph (a)
-Publisher FASB
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Amount of investment in debt security measured at fair value with change in fair value recognized in net income (trading) and investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(4))
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(2))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483467/210-10-45-1

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