Revenues and Accounts Receivable - Disaggregation of Revenue (Details) - Operating Segments - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Disaggregation of Revenue
Revenues from contracts with customers	$ 11,561	$ 12,487	$ 33,691	$ 36,867
Crude Oil
Disaggregation of Revenue
Revenues from contracts with customers	11,537	12,467	33,599	36,761
NGL
Disaggregation of Revenue
Revenues from contracts with customers	24	20	92	106
Sales \| Crude Oil
Disaggregation of Revenue
Revenues from contracts with customers	11,116	12,046	32,351	35,560
Sales \| NGL
Disaggregation of Revenue
Revenues from contracts with customers	22	19	88	101
Transportation \| Crude Oil
Disaggregation of Revenue
Revenues from contracts with customers	337	321	990	915
Terminalling, Storage and Other \| Crude Oil
Disaggregation of Revenue
Revenues from contracts with customers	84	100	258	286
Terminalling, Storage and Other \| NGL
Disaggregation of Revenue
Revenues from contracts with customers	$ 2	$ 1	$ 4	$ 5

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.

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+ Details

- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details

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