Summarized Financial Data - Chevron U.S.A. Inc. - Income Statement (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Subsidiary Statements Captions [Line Items]
Sales and other operating revenues	$ 44,375	$ 49,574	$ 90,476	$ 96,154
Costs and other deductions	40,675	44,145	82,702	84,939
Net income (loss) attributable to CUSA	$ 2,490	$ 4,434	5,990	9,935
Chevron U.S.A. Inc.
Subsidiary Statements Captions [Line Items]
Sales and other operating revenues			70,908	75,590
Costs and other deductions			67,891	72,170
Net income (loss) attributable to CUSA			$ 2,553	$ 3,057

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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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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