Revenues and Accounts Receivable - Disaggregation of Revenue (Details) - Operating Segments - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2026	Mar. 31, 2025
Disaggregation of Revenue
Revenue from contracts with customers	$ 12,485	$ 11,449
Crude Oil segment revenues from contracts with customers
Disaggregation of Revenue
Revenue from contracts with customers	12,444	11,408
NGL segment revenues from contracts with customers
Disaggregation of Revenue
Revenue from contracts with customers	41	41
Sales \| Crude Oil segment revenues from contracts with customers
Disaggregation of Revenue
Revenue from contracts with customers	12,012	11,008
Sales \| NGL segment revenues from contracts with customers
Disaggregation of Revenue
Revenue from contracts with customers	39	41
Transportation \| Crude Oil segment revenues from contracts with customers
Disaggregation of Revenue
Revenue from contracts with customers	338	312
Terminalling, Storage and Other \| Crude Oil segment revenues from contracts with customers
Disaggregation of Revenue
Revenue from contracts with customers	94	88
Terminalling, Storage and Other \| NGL segment revenues from contracts with customers
Disaggregation of Revenue
Revenue from contracts with customers	$ 2	$ 0

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