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Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan.

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Weighted average rate of return on plan assets, reflecting average rate of earnings expected on existing plan assets and expected contributions, used to determine net periodic benefit cost of defined benefit plan.

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Employee Benefit Plans - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Maximum annual increase percentage to company contribution for retiree medical coverage	4.00%
Other Benefit Assumptions:
Assumed health care cost-trend rates in the next fiscal year	8.40%	8.40%
Ultimate trend rate for health care cost	4.50%	4.50%
Primary Investment:
Company's US and UK pension plans as a percentage of total pension assets	95.00%
Benefit Plan Trusts:
Number of Chevron treasury stocks held in benefit plan trust for funding obligations	14,168,000	14,168,000	14,168,000	14,168,000
Employee Incentive Plan
Charges to expense for cash bonuses	$ 965	$ 809	$ 1,169
Other Benefits
Discount Rate:
Discount rate for pension plans	5.70%	5.10%	5.30%
Cash Contributions and Benefit Payments:
Contributions to employee pension plans	$ 148	$ 159
Estimated contributions to employee pension plans for the next fiscal year	150
ESIP
Employee Savings Investment Plan:
Compensation expense	$ 330	320	$ 283
U.S.
Expected Return on Plan Assets:
Estimated long-term rate of return on US pension plan assets	7.00%
Cash Contributions and Benefit Payments:
Contributions to employee pension plans	$ 754
Estimated contributions to employee pension plans for the next fiscal year	750
U.S. \| Pension Benefits
Funded Status:
Accumulated benefit obligations pension plans	$ 9,053	$ 9,284
Expected Return on Plan Assets:
Estimated long-term rate of return on US pension plan assets	7.00%	7.00%	6.60%
Percentage of US pension plan assets relative to total pension plan assets	73.00%
Plan asset market valuation period, prior to year-end measurement date	3 months
Discount Rate:
Discount rate for pension plans	5.70%	5.00%	5.20%
Cash Contributions and Benefit Payments:
Contributions to employee pension plans	$ 754	$ 1,020
U.S. \| Pension Benefits \| Equities \| Minimum
Primary Investment:
Pension Plan - Board of Trustees approved asset allocation	30.00%
U.S. \| Pension Benefits \| Equities \| Maximum
Primary Investment:
Pension Plan - Board of Trustees approved asset allocation	60.00%
U.S. \| Pension Benefits \| Fixed Income and Cash \| Minimum
Primary Investment:
Pension Plan - Board of Trustees approved asset allocation	30.00%
U.S. \| Pension Benefits \| Fixed Income and Cash \| Maximum
Primary Investment:
Pension Plan - Board of Trustees approved asset allocation	50.00%
U.S. \| Pension Benefits \| Real Estate \| Minimum
Primary Investment:
Pension Plan - Board of Trustees approved asset allocation	5.00%
U.S. \| Pension Benefits \| Real Estate \| Maximum
Primary Investment:
Pension Plan - Board of Trustees approved asset allocation	25.00%
U.S. \| Pension Benefits \| Other \| Minimum
Primary Investment:
Pension Plan - Board of Trustees approved asset allocation	0.00%
U.S. \| Pension Benefits \| Other \| Maximum
Primary Investment:
Pension Plan - Board of Trustees approved asset allocation	5.00%
U.S. \| Pension Benefits \| Cash \| Minimum
Primary Investment:
Pension Plan - Board of Trustees approved asset allocation	0.00%
U.S. \| Pension Benefits \| Cash \| Maximum
Primary Investment:
Pension Plan - Board of Trustees approved asset allocation	15.00%
U.S. \| Other Benefits
Discount Rate:
Discount rate for pension plans	5.60%	5.00%	5.20%
Int’l.
Cash Contributions and Benefit Payments:
Contributions to employee pension plans	$ 90
Estimated contributions to employee pension plans for the next fiscal year	100
Int’l. \| Pension Benefits
Funded Status:
Accumulated benefit obligations pension plans	$ 3,066	$ 3,378
Expected Return on Plan Assets:
Estimated long-term rate of return on US pension plan assets	5.90%	6.10%	3.90%
Discount Rate:
Discount rate for pension plans	6.00%	5.50%	5.80%
Cash Contributions and Benefit Payments:
Contributions to employee pension plans	$ 90	$ 100
UNITED KINGDOM \| Pension Benefits \| Equities \| Minimum
Primary Investment:
Pension Plan - Board of Trustees approved asset allocation	5.00%
UNITED KINGDOM \| Pension Benefits \| Equities \| Maximum
Primary Investment:
Pension Plan - Board of Trustees approved asset allocation	15.00%
UNITED KINGDOM \| Pension Benefits \| Fixed Income and Cash \| Minimum
Primary Investment:
Pension Plan - Board of Trustees approved asset allocation	63.00%
UNITED KINGDOM \| Pension Benefits \| Fixed Income and Cash \| Maximum
Primary Investment:
Pension Plan - Board of Trustees approved asset allocation	93.00%
UNITED KINGDOM \| Pension Benefits \| Real Estate \| Minimum
Primary Investment:
Pension Plan - Board of Trustees approved asset allocation	5.00%
UNITED KINGDOM \| Pension Benefits \| Real Estate \| Maximum
Primary Investment:
Pension Plan - Board of Trustees approved asset allocation	15.00%
UNITED KINGDOM \| Pension Benefits \| Cash \| Minimum
Primary Investment:
Pension Plan - Board of Trustees approved asset allocation	0.00%
UNITED KINGDOM \| Pension Benefits \| Cash \| Maximum
Primary Investment:
Pension Plan - Board of Trustees approved asset allocation	7.00%