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Investments (Securities Lending - Narrative) (Details) $ in Millions | Mar. 31, 2024 USD ($)
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Investments, Debt and Equity Securities [Abstract] |
Cash collateral on deposit from counterparties | $ 568
Percentage of reinvestment portfolio invested in liquid assets | 54.00%

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- Definition Amount of securities loaned to entities in exchange for collateral, not subject to a master netting arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (d) -SubTopic 20 -Topic 210 -Publisher FASB -URI https://asc.fasb.org//1943274/2147483466/210-20-50-3 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 22 -Publisher FASB -URI https://asc.fasb.org//1943274/2147483444/210-20-55-22 + Details
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