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Debt - Senior Notes, Credit Facilities, Borrowings and Repayments and Letters of Credit (Details) - USD ($) $ in Millions | 1 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Aug. 31, 2024 | Sep. 30, 2024 | Sep. 30, 2023 | Jun. 30, 2024 | Dec. 31, 2023
Debt |  |  |  |  |
Outstanding letters of credit |  | $ 108 |  |  | $ 205
Senior Secured Hedged Inventory Facility |  |  |  |  |
Debt |  |  |  |  |
Debt maturity, length of extension | 1 year |  |  |  |
Line of credit facility, current borrowing capacity | $ 1,350 |  |  |  |
Senior Secured Revolving Credit Facility, Maturing in August 2026 |  |  |  |  |
Debt |  |  |  |  |
Line of credit facility, current borrowing capacity | $ 64 |  |  |  |
Senior Unsecured Revolving Credit Facility |  |  |  |  |
Debt |  |  |  |  |
Debt maturity, length of extension | 1 year |  |  |  |
Line of credit facility, current borrowing capacity | $ 1,350 |  |  |  |
Senior Unsecured Revolving Credit Facility, Maturing in August 2027 |  |  |  |  |
Debt |  |  |  |  |
Line of credit facility, current borrowing capacity | $ 64 |  |  |  |
Senior Notes |  |  |  |  |
Debt |  |  |  |  |
Debt instrument face value |  | 7,900 |  |  | $ 7,300
5.70% senior notes due September 2034 | Senior Notes |  |  |  |  |
Debt |  |  |  |  |
Debt instrument face value |  |  |  | $ 650 |
Debt instrument, interest rate (as a percent) |  |  |  | 5.70% |
Public offering price (as a percent) |  |  |  | 99.953% |
Commercial Paper Program |  |  |  |  |
Debt |  |  |  |  |
Total borrowings |  | 20,700 | $ 4,900 |  |
Total repayments |  | $ 21,100 | $ 4,900 |  |

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