Related Party Transactions - Schedule of Significant Transactions with Related Parties (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Balance Sheet
Accounts and notes receivable	$ 5,701		$ 5,701		$ 6,695
Accounts payable	6,517		6,517		6,044
Income Statement
Operating revenues and other income	14,740	$ 14,136	31,841	$ 28,612
Purchased commodities	5,085	4,858	11,273	10,192
Operating expenses and selling, general and administrative expenses	250	164	441	342
Related Party
Balance Sheet
Accounts and notes receivable	61		61		74
Accounts payable	56		56		$ 57
Income Statement
Operating revenues and other income	25	23	49	41
Purchased commodities	0	0	2	0
Operating expenses and selling, general and administrative expenses	$ 73	$ 57	$ 158	$ 112

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.

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