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Derivative Assets And Liabilities Table - Fair Value of Derivative Instruments (Details) - USD ($)
$ in Millions
Jun. 30, 2022
Dec. 31, 2021
Total derivatives assets $ 488 $ 272
Total derivatives liabilities (525) (598)
Designated as Hedging Instrument [Member]    
Total derivatives assets 56 46
Total derivatives liabilities (26) (3)
Not Designated as Hedging Instrument [Member]    
Total derivatives assets 432 226
Total derivatives liabilities (499) (595)
Fair Value, Recurring [Member]    
Price Risk Derivative Liabilities, at Fair Value 381 211
Level 1 | Fair Value, Recurring [Member]    
Price Risk Derivative Liabilities, at Fair Value 310 190
Level 2 | Fair Value, Recurring [Member]    
Price Risk Derivative Liabilities, at Fair Value 71 21
Commodity Derivatives [Member] | Not Designated as Hedging Instrument [Member]    
Total derivatives assets 146 53
Total derivatives liabilities (102) (52)
Commodity Derivatives (Margin Deposits) [Member] | Designated as Hedging Instrument [Member]    
Total derivatives assets 56 46
Total derivatives liabilities (26) (3)
Commodity Derivatives (Margin Deposits) [Member] | Not Designated as Hedging Instrument [Member]    
Total derivatives assets 286 173
Total derivatives liabilities (253) (156)
Interest Rate Derivatives [Member] | Not Designated as Hedging Instrument [Member]    
Total derivatives assets 0 0
Total derivatives liabilities $ (144) $ (387)