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Hedging Activities and Fair Value Measurements - Schedule of Hedging Instruments Under the FASB's Derivative and Hedging Guidance (Details) | 12 Months Ended
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Dec. 31, 2025 TWh MMBbls Bcf
Derivatives designated as hedging instruments: | Forecasted sales of natural gas (Bcf) | Cash flow hedge | Current |
Derivative [Line Items] |
Derivative, nonmonetary notional amount, volume | Bcf | 45.3
Derivatives designated as hedging instruments: | Forecasted sales of natural gas (Bcf) | Cash flow hedge | Long-Term |
Derivative [Line Items] |
Derivative, nonmonetary notional amount, volume | Bcf | 18.0
Derivatives designated as hedging instruments: | Forecasted sales of NGLs (MMBbls) | Cash flow hedge | Current |
Derivative [Line Items] |
Derivative, nonmonetary notional amount, volume | 0.9
Derivatives designated as hedging instruments: | Forecasted sales of octane enhancement products (MMBbls) | Cash flow hedge | Current |
Derivative [Line Items] |
Derivative, nonmonetary notional amount, volume | 2.3
Derivatives designated as hedging instruments: | Forecasted sales of octane enhancement products (MMBbls) | Cash flow hedge | Long-Term |
Derivative [Line Items] |
Derivative, nonmonetary notional amount, volume | 0.2
Derivatives designated as hedging instruments: | Natural gas storage inventory management activities (Bcf) | Fair value hedge | Current |
Derivative [Line Items] |
Derivative, nonmonetary notional amount, volume | Bcf | 1.8
Derivatives designated as hedging instruments: | Forecasted purchases of NGLs and related hydrocarbon products (MMBbls) | Cash flow hedge | Current |
Derivative [Line Items] |
Derivative, nonmonetary notional amount, volume | 208.3
Derivatives designated as hedging instruments: | Forecasted purchases of NGLs and related hydrocarbon products (MMBbls) | Cash flow hedge | Long-Term |
Derivative [Line Items] |
Derivative, nonmonetary notional amount, volume | 16.9
Derivatives designated as hedging instruments: | Forecasted sales of NGLs and related hydrocarbon products (MMBbls) | Cash flow hedge | Current |
Derivative [Line Items] |
Derivative, nonmonetary notional amount, volume | 212.9
Derivatives designated as hedging instruments: | Forecasted sales of NGLs and related hydrocarbon products (MMBbls) | Cash flow hedge | Long-Term |
Derivative [Line Items] |
Derivative, nonmonetary notional amount, volume | 27.0
Derivatives designated as hedging instruments: | Forecasted purchases of refined products (MMBbls) | Cash flow hedge | Current |
Derivative [Line Items] |
Derivative, nonmonetary notional amount, volume | 3.0
Derivatives designated as hedging instruments: | Forecasted sales of refined products (MMBbls) | Cash flow hedge | Current |
Derivative [Line Items] |
Derivative, nonmonetary notional amount, volume | 6.1
Derivatives designated as hedging instruments: | Forecasted sales of refined products (MMBbls) | Cash flow hedge | Long-Term |
Derivative [Line Items] |
Derivative, nonmonetary notional amount, volume | 0.1
Derivatives designated as hedging instruments: | Forecasted purchases of crude oil (MMBbls) | Cash flow hedge | Current |
Derivative [Line Items] |
Derivative, nonmonetary notional amount, volume | 19.5
Derivatives designated as hedging instruments: | Forecasted purchases of crude oil (MMBbls) | Cash flow hedge | Long-Term |
Derivative [Line Items] |
Derivative, nonmonetary notional amount, volume | 7.3
Derivatives designated as hedging instruments: | Forecasted sales of crude oil (MMBbls) | Cash flow hedge | Current |
Derivative [Line Items] |
Derivative, nonmonetary notional amount, volume | 28.1
Derivatives designated as hedging instruments: | Forecasted sales of crude oil (MMBbls) | Cash flow hedge | Long-Term |
Derivative [Line Items] |
Derivative, nonmonetary notional amount, volume | 14.1
Derivatives designated as hedging instruments: | Forecasted sales of petrochemical products (MMBbls) | Cash flow hedge | Current |
Derivative [Line Items] |
Derivative, nonmonetary notional amount, volume | 0.3
Derivatives designated as hedging instruments: | Forecasted purchases of power related to asset operations (terawatt hours (“TWh”)) | Cash flow hedge | Current |
Derivative [Line Items] |
Volume | TWh | 1.0
Derivatives designated as hedging instruments: | Forecasted purchases of power related to asset operations (terawatt hours (“TWh”)) | Cash flow hedge | Long-Term |
Derivative [Line Items] |
Volume | TWh | 0.3
Derivatives not designated as hedging instruments: | Natural gas risk management activities (Bcf) | Mark-to-market | Current |
Derivative [Line Items] |
Derivative, nonmonetary notional amount, volume | Bcf | 39.4
Derivatives not designated as hedging instruments: | NGL risk management activities (MMBbls) | Mark-to-market | Current |
Derivative [Line Items] |
Derivative, nonmonetary notional amount, volume | 58.3
Derivatives not designated as hedging instruments: | NGL risk management activities (MMBbls) | Mark-to-market | Long-Term |
Derivative [Line Items] |
Derivative, nonmonetary notional amount, volume | 6.4
Derivatives not designated as hedging instruments: | Refined products risk management activities (MMBbls) | Mark-to-market | Current |
Derivative [Line Items] |
Derivative, nonmonetary notional amount, volume | 7.8
Derivatives not designated as hedging instruments: | Crude oil risk management activities (MMBbls) | Mark-to-market | Current |
Derivative [Line Items] |
Derivative, nonmonetary notional amount, volume | 4.6

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