Related Party Transactions - Schedule of Income and Expenses of Joint Venture Arrangements (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2026	Mar. 31, 2025
Related Party Transaction [Line Items]
Income	$ 2,444	$ 2,225
Expenses	1,867	1,767
Joint Venture
Related Party Transaction [Line Items]
Income	47	68
Expenses	7	6
Interest income, other	$ 9	$ 7

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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- 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