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Derivative and Hedging Activities - Schedule of Estimated Fair Values of Our Natural Gas and Oil Derivative Instrument Assets (Liabilities) (Details) - Energy Related Derivative $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2024 USD ($) Bcf | Dec. 31, 2023 USD ($) Bcf
Derivative [Line Items] |  |
Fair Value | $ 632 | $ 699
Eagle Ford divestiture |  |
Derivative [Line Items] |  |
Fair Value | $ 33 | $ 12
Natural Gas |  |
Derivative [Line Items] |  |
Notional Volume | Bcf | 1,314 | 1,479
Fair Value | $ 599 | $ 687
Natural Gas | Fixed-price swaps |  |
Derivative [Line Items] |  |
Notional Volume | Bcf | 314 | 343
Fair Value | $ 199 | $ 188
Natural Gas | Collars |  |
Derivative [Line Items] |  |
Notional Volume | Bcf | 511 | 558
Fair Value | $ 451 | $ 497
Natural Gas | Basis protection swaps |  |
Derivative [Line Items] |  |
Notional Volume | Bcf | 489 | 578
Fair Value | $ (51) | $ 2

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