Financial and Derivative Instruments - Fair Value of Derivatives Not Designated as Hedging Instruments (Details) - Commodity - USD ($) $ in Millions |
Jun. 30, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Consolidated Balance Sheet: Fair Value of Derivatives not Designated as Hedging Instruments | ||
| Total Assets at Fair Value | $ 200 | $ 137 |
| Total Liabilities at Fair Value | 257 | 153 |
| Accounts and notes receivable, net | ||
| Consolidated Balance Sheet: Fair Value of Derivatives not Designated as Hedging Instruments | ||
| Total Assets at Fair Value | 151 | 122 |
| Long-term receivables, net | ||
| Consolidated Balance Sheet: Fair Value of Derivatives not Designated as Hedging Instruments | ||
| Total Assets at Fair Value | 49 | 15 |
| Accounts payable | ||
| Consolidated Balance Sheet: Fair Value of Derivatives not Designated as Hedging Instruments | ||
| Total Liabilities at Fair Value | 242 | 127 |
| Deferred credits and other noncurrent obligations | ||
| Consolidated Balance Sheet: Fair Value of Derivatives not Designated as Hedging Instruments | ||
| Total Liabilities at Fair Value | $ 15 | $ 26 |