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Financial and Other Derivative Instruments (Net Cash Collateral Offsetting Arrangements) (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
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Derivative Instruments and Hedging Activities Disclosure [Abstract] |  |
Cash collateral netted against Derivative assets | $ (90) | $ (90)
Cash collateral netted against Derivative liabilities | 113 | 48
Cash collateral recorded in Accounts receivable | 77 | 55
Cash collateral recorded in Accounts payable | (27) | (21)
Total net cash collateral posted (received) | $ 73 | $ (8)

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