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Commitments Contingencies and Guarantees (Tables) | 12 Months Ended
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Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract] |
Schedule of Fair Value, Off-balance Sheet Risks [Table Text Block] | The Company’s commitments to fund investments as of December 31, 2023 and 2022, are presented in the following table (dollars in millions):
| 2023 |  | 2022
Limited partnerships and real estate joint ventures | $ | 1,058 |  |  | $ | 937 |
Mortgage loans | 137 |  |  | 137 |
Bank loans and private placements | 810 |  |  | 682 |
Lifetime mortgages | 53 |  |  | 59 |
Other Commitments [Table Text Block] | The following table presents the maximum potential obligation for these commitments as of December 31, 2023 (dollars in millions):
Commitment Period |  | Maximum Potential Obligation
2034 |  | $ | 1,243 |
2035 |  | 1,922 |
2036 |  | 3,599 |
2037 |  | 5,100 |
2038 |  | 2,550 |
2039 |  | 8,751 |
2041 |  | 720 |
2046 |  | 3,000 |

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- Definition Tabular disclosure of the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined) which are not recognized in the financial statements (off-balance sheet) because they fail to meet some other criterion for recognition. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482907/825-10-50-10 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482907/825-10-50-11 + Details
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