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Investments - Carrying amounts of Other Invested Assets (Details) - USD ($) $ in Millions | Jun. 30, 2024 | Jun. 09, 2024 | Dec. 31, 2023
--- | --- | --- | ---
Investments [Line Items] |  |  |  |
Alternative investments |  | $ 4,283 |  | $ 4,345
All other investments |  | 1,938 |  | 2,023
Total | [1] | 14,788 |  | 6,368
Accumulated depreciation on investment in real estate |  | 162 |  | 161
Hedge Funds |  |  |  |
Investments [Line Items] |  |  |  |
Total |  | 188 |  | 411
Private equity funds |  |  |  |
Investments [Line Items] |  |  |  |
Alternative investments |  | 3,362 |  | 3,388
Total |  | 3,900 |  | 3,700
Corebridge Financial Inc |  |  |  |
Investments [Line Items] |  |  |  |
Retained investment in Corebridge using fair value option |  | $ 8,567 | $ 12,392 | $ 0
Total |  |  | $ 817 |
[1] | See Note 10 for details of balances associated with variable interest entities.

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- Definition This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 323 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481664/323-10-45-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 323 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481687/323-10-50-3 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(10)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 25 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-25 + Details
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