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Derivatives and Risk Management Activities - Broker Receivable/Payable (Details) - USD ($) $ in Millions | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Offsetting Assets, Liabilities |  |
Initial margin | $ 64 | $ 77
Variation margin posted/(returned) | 102 | (65)
Letters of credit | (161) | (205)
Net broker receivable | 141 |
Net broker payable |  | (13)
Exchange Traded |  |
Offsetting Assets, Liabilities |  |
Letters of credit | $ (25) | $ (25)

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- References No definition available. + Details
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- Definition Cash posted by (returned to) the reporting entity to (from) a broker or counterparty to comply with initial margin requirements. + References No definition available. + Details
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- Definition Amount of right to receive cash collateral under master netting arrangements offset against derivative liabilities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 5 -SubTopic 10 -Topic 815 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480463/815-10-45-5 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -SubTopic 20 -Topic 210 -Publisher FASB -URI https://asc.fasb.org//1943274/2147483466/210-20-50-3 + Details
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