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Investments - Payables for Collateral on Investments (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023
Carrying Value |  |
Collateral payable for derivative investments | $ 7,213 | $ 5,250
Securities pledged under securities lending agreements | 157 | 205
Investments pledged for FHLBI | 2,650 | 2,650
Total payables for collateral on investments | 10,020 | 8,105
Fair Value |  |
Collateral payable for derivative investments | 7,213 | 5,250
Securities pledged under securities lending agreements | 151 | 197
Investments pledged for Federal Home Loan Bank of Indianapolis('FHLBI') | 3,657 | 3,603
Total payables for collateral on investments | $ 11,021 | $ 9,050
Percentage of the fair value of domestic securities obtained as collateral under securities lending agreements. | 102.00% |
Percentage of the fair value of foreign securities obtained as collateral under securities lending agreements. | 105.00% |
Minimum |  |
Fair Value |  |
Percentage of the fair value of FHLBI securities obtained as collateral under securities pledged for FHLBI for AFS Securities | 105.00% |
Percentage of the fair value of FHLBI securities obtained as collateral under securities pledged for FHLBI for mortgage loan | 155.00% |
Maximum |  |
Fair Value |  |
Percentage of the fair value of FHLBI securities obtained as collateral under securities pledged for FHLBI for AFS Securities | 115.00% |
Percentage of the fair value of FHLBI securities obtained as collateral under securities pledged for FHLBI for mortgage loan | 175.00% |

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- Definition The amount of cash received as security in return for loaning securities to Federal Home Loan Bank of Indianapolis. + References No definition available. + Details
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- Definition Amount, before effects of master netting arrangements, of financial assets loaned to entities in exchange for collateral. Includes liabilities not subject to a master netting arrangement and financial assets transferred other than securities that qualify as secured borrowings. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 860 -SubTopic 30 -Name Accounting Standards Codification -Section 55 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481395/860-30-55-4 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 860 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 7 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481420/860-30-50-7 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 7 -Subparagraph (a)(1) -SubTopic 30 -Topic 860 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481420/860-30-50-7 + Details
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