Related Party Transactions (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Operating revenues and other income
Related Party Transaction [Line Items]
Significant transactions with related parties	$ 1,074	$ 1,188	$ 2,110	$ 2,321
Purchases
Related Party Transaction [Line Items]
Significant transactions with related parties	4,110	5,188	8,120	10,419
Operating expenses and selling, general and administrative expenses
Related Party Transaction [Line Items]
Significant transactions with related parties	$ 79	$ 77	$ 153	$ 146

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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+ Details