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Insurance (Obligations Under Funding Agreements - Liability and Collateral) (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
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Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items] |  |
Outstanding Funding Agreements To Certain SPEs | $ 40,700 | $ 39,500
Funding Agreements Farmer Mac |  |
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items] |  |
Outstanding Funding Agreements To Certain SPEs | 2,050 | 2,050
Invested Assets Pledged As Collateral | 2,148 | 2,159
Federal Home Loan Bank of New York |  |
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items] |  |
Federal Home Loan Bank amount of advances by branch for funding agreements | 14,940 | 15,750
Collateral pledged relating to obligations under funding agreements | $ 17,857 | $ 17,981

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- Definition Amount of the collateral pledged in support of federal home loan bank advances outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=123599511&loc=d3e64711-112823 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822 + Details
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