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Financial and Other Derivative Instruments (Details Textuals) - USD ($) $ in Millions | Sep. 30, 2023 | Dec. 31, 2022
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Derivative Instruments and Hedging Activities Disclosure [Abstract] |  |
Letters of credit that could be used to offset net derivative liabilities | $ 1 | $ 81
Letters of credit received that could be used to offset net derivative assets | 18 | $ 82
Contractual obligation to post collateral in event of downgrade to below investment grade | 437 |
Derivative net liability position aggregate fair value | 761 |
Collateral already posted fair value | 12 |
Derivative net asset position, fair value | 632 |
Remaining amount of offsets to derivative net liability positions for hard and soft trigger provisions | $ 117 |

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- Definition The aggregate fair value amounts of derivative instruments that contain credit-risk-related contingent features that are in a net asset position at the end of the reporting period. + References No definition available. + Details
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- Definition Letters of Credit Received that could be used to offset net derivative assets + References No definition available. + Details
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- Definition Letters Of Credit That Could Be Used To Offset Net Derivative Liabilities + References No definition available. + Details
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- Definition Remaining amount of offsets to derivative net liability positions for hard and soft trigger provisions + References No definition available. + Details
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- Definition The aggregate fair value of additional assets that would be required to be posted as collateral for derivative instruments with credit-risk-related contingent features if the credit-risk-related contingent features were triggered at the end of the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4H -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480434/815-10-50-4H + Details
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- Definition The aggregate fair value of assets that are already posted, at the end of the reporting period, as collateral for derivative instruments with credit-risk-related contingent features. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4H -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480434/815-10-50-4H + Details
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- Definition The aggregate fair value amounts of derivative instruments that contain credit-risk-related contingent features that are in a net liability position at the end of the reporting period. For nonderivative instruments that are designated and qualify as hedging instruments, the fair value amounts are the carrying value of the nonderivative hedging instrument, including the adjustment for the foreign currency transaction gain (loss) on that instrument. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4H -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480434/815-10-50-4H + Details
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