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Investments (Contractholder-Directed Equity Securities and FVO Securities) (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
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Debt and Equity Securities, FV-NI [Line Items] |  |
Debt Securities, Trading, and Equity Securities, FV-NI, Cost | $ 9,106 | $ 9,886
Contracted-Directed Equity Securities and FVO Securities, FV-NI, Unrealized Gains (Losses) | 562 | 2,256
Contractholder-directed equity securities and fair value option securities, at estimated fair value | 9,668 | 12,142
Unit-linked investments |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Debt Securities, Trading, and Equity Securities, FV-NI, Cost | 7,945 | 8,643
Contracted-Directed Equity Securities and FVO Securities, FV-NI, Unrealized Gains (Losses) | 288 | 1,897
Contractholder-directed equity securities and fair value option securities, at estimated fair value | 8,233 | 10,540
FVO Securities |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Debt Securities, Trading, and Equity Securities, FV-NI, Cost | 1,161 | 1,243
Contracted-Directed Equity Securities and FVO Securities, FV-NI, Unrealized Gains (Losses) | 274 | 359
Contractholder-directed equity securities and fair value option securities, at estimated fair value | $ 1,435 | $ 1,602

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- Definition 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 No definition available. + Details
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- Definition 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 -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.4) -URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (f) -URI https://asc.fasb.org/extlink&oid=124098289&loc=d3e6676-107765 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(2)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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