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Variable Interest Entities - Changes in Level 3 Assets (Details) - Consolidated investment entities - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Common stocks |  |  |
Summary of changes in Level 3 assets measured at fair value on a recurring basis |  |  |
Balance, beginning | $ 0 | $ 0 |
Total gains (losses) included in Net income |  | 0 |
Purchases |  | 0 |
Sales |  | 0 |
Settlements |  | 0 |
Transfers into Level 3 |  | 2 |
Transfers out of Level 3 |  | (2) |
Balance, ending |  | 0 | $ 0
Changes in unrealized gains (losses) in net income relating to assets held at end of period |  | 0 |
Syndicated loans |  |  |
Summary of changes in Level 3 assets measured at fair value on a recurring basis |  |  |
Balance, beginning | 125 | 64 | 92
Total gains (losses) included in Net income | (4) | (11) | 2
Purchases | 45 | 69 | 106
Sales | (10) | (4) | (38)
Settlements | (16) | (8) | (49)
Transfers into Level 3 | 122 | 218 | 119
Transfers out of Level 3 | (199) | (203) | (150)
Deconsolidation of consolidated investment entities |  |  | (18)
Balance, ending | 63 | 125 | 64
Changes in unrealized gains (losses) in net income relating to assets held at end of period | (1) | (10) | 0
Other assets |  |  |
Summary of changes in Level 3 assets measured at fair value on a recurring basis |  |  |
Balance, beginning | 1 | 3 | 2
Total gains (losses) included in Net income | 0 | 0 | 1
Purchases | 0 | 0 | 0
Sales | 0 | 0 | 0
Settlements | 0 | 0 | 0
Transfers into Level 3 | 0 | 1 | 2
Transfers out of Level 3 | (1) | (3) | (2)
Deconsolidation of consolidated investment entities |  |  | 0
Balance, ending | 0 | 1 | 3
Changes in unrealized gains (losses) in net income relating to assets held at end of period | $ 0 | $ 0 | $ 1

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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
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- Definition Amount of gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
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- Definition 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
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- Definition Amount of transfer of financial instrument classified as an asset into level 3 of the fair value hierarchy. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
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