10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 10-Q

þQUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2018

or

oTRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

Commission file number 001-00368

Chevron Corporation

(Exact name of registrant as specified in its charter)

Delaware	94-0890210
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
6001 Bollinger Canyon Road, San Ramon, California	94583-2324 (Zip Code)
(Address of principal executive offices)

Registrant’s telephone number, including area code: (925) 842-1000

NONE

(Former name, former address and former fiscal year, if changed since last report.)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  þ        No  o

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).    Yes  þ        No  o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer  þ	Accelerated filer o
Non-accelerated filer o	Smaller reporting company o
	Emerging growth company o

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).     Yes  o       No  þ

Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the latest practicable date:

Class	Outstanding as of September 30, 2018
Common stock, $.75 par value	1,910,774,369

TABLE OF CONTENTS

		Page No.
	Cautionary Statements Relevant to Forward-Looking Information for the Purpose of “Safe Harbor” Provisions of the Private Securities Litigation Reform Act of 1995	2
PART I FINANCIAL INFORMATION
Item 1.	Consolidated Financial Statements —
	Consolidated Statement of Income for the Three and Nine Months Ended September 30, 2018, and 2017	3
	Consolidated Statement of Comprehensive Income for the Three and Nine Months Ended September 30, 2018, and 2017	4
	Consolidated Balance Sheet at September 30, 2018, and December 31, 2017	5
	Consolidated Statement of Cash Flows for the Nine Months Ended September 30, 2018, and 2017	6
	Notes to Consolidated Financial Statements	7-25
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	26-39
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	39
Item 4.	Controls and Procedures	39
PART II OTHER INFORMATION
Item 1.	Legal Proceedings	39
Item 1A.	Risk Factors	40
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	40
Item 6.	Exhibits	41
Signature		42

1

CAUTIONARY STATEMENTS RELEVANT TO FORWARD-LOOKING INFORMATION

FOR THE PURPOSE OF “SAFE HARBOR” PROVISIONS OF THE

PRIVATE SECURITIES LITIGATION REFORM ACT OF 1995

This quarterly report on Form 10-Q of Chevron Corporation contains forward-looking statements relating to Chevron’s operations that are based on management’s current expectations, estimates and projections about the petroleum, chemicals and other energy-related industries. Words or phrases such as “anticipates,” “expects,” “intends,” “plans,” “targets,” “forecasts,” “projects,” “believes,” “seeks,” “schedules,” “estimates,” “positions,” “pursues,” “may,” “could,” “should,” “will,” “budgets,” “outlook,” “trends,” “guidance,” “focus,” “on schedule,” “on track,” “is slated,” “goals,” “objectives,” “strategies,” “opportunities” and similar expressions are intended to identify such forward-looking statements. These statements are not guarantees of future performance and are subject to certain risks, uncertainties and other factors, many of which are beyond the company’s control and are difficult to predict. Therefore, actual outcomes and results may differ materially from what is expressed or forecasted in such forward-looking statements. The reader should not place undue reliance on these forward-looking statements, which speak only as of the date of this report. Unless legally required, Chevron undertakes no obligation to update publicly any forward-looking statements, whether as a result of new information, future events or otherwise.

Among the important factors that could cause actual results to differ materially from those in the forward-looking statements are: changing crude oil and natural gas prices; changing refining, marketing and chemicals margins; the company's ability to realize anticipated cost savings and expenditure reductions; actions of competitors or regulators; timing of exploration expenses; timing of crude oil liftings; the competitiveness of alternate-energy sources or product substitutes; technological developments; the results of operations and financial condition of the company's suppliers, vendors, partners and equity affiliates, particularly during extended periods of low prices for crude oil and natural gas; the inability or failure of the company’s joint-venture partners to fund their share of operations and development activities; the potential failure to achieve expected net production from existing and future crude oil and natural gas development projects; potential delays in the development, construction or start-up of planned projects; the potential disruption or interruption of the company’s operations due to war, accidents, political events, civil unrest, severe weather, cyber threats and terrorist acts, crude oil production quotas or other actions that might be imposed by the Organization of Petroleum Exporting Countries, or other natural or human causes beyond the company's control; changing economic, regulatory and political environments in the various countries in which the company operates; general domestic and international economic and political conditions; the potential liability for remedial actions or assessments under existing or future environmental regulations and litigation; significant operational, investment or product changes required by existing or future environmental statutes and regulations, including international agreements and national or regional legislation and regulatory measures to limit or reduce greenhouse gas emissions; the potential liability resulting from other pending or future litigation; the company’s future acquisition or disposition of assets or shares or the delay or failure of such transactions to close based on required closing conditions; the potential for gains and losses from asset dispositions or impairments; government-mandated sales, divestitures, recapitalizations, industry-specific taxes, tariffs, changes in fiscal terms or restrictions on scope of company operations; foreign currency movements compared with the U.S. dollar; material reductions in corporate liquidity and access to debt markets; the impact of the 2017 U.S. tax legislation on the company's future results; the effects of changed accounting rules under generally accepted accounting principles promulgated by rule-setting bodies; the company's ability to identify and mitigate the risks and hazards inherent in operating in the global energy industry; and the factors set forth under the heading “Risk Factors” on pages 19 through 22 of the company’s 2017 Annual Report on Form 10-K. Other unpredictable or unknown factors not discussed in this report could also have material adverse effects on forward-looking statements.

2

PART I.

FINANCIAL INFORMATION

Item 1. Consolidated Financial Statements

CHEVRON CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENT OF INCOME

(Unaudited)

	Three Months Ended September 30				Nine Months Ended September 30
	2018		2017		2018		2017
	(Millions of dollars, except per-share amounts)
Revenues and Other Income
Sales and other operating revenues1	$	42,105	$	33,892	$	118,564	$	98,293
Income from equity affiliates	1,555		1,036		4,685		3,502
Other income	327		1,277		738		2,311
Total Revenues and Other Income	43,987		36,205		123,987		104,106
Costs and Other Deductions
Purchased crude oil and products	24,681		18,776		70,658		54,607
Operating expenses2	4,985		4,849		14,899		14,021
Selling, general and administrative expenses2	1,018		1,107		2,758		2,848
Exploration expenses	625		239		960		508
Depreciation, depletion and amortization	5,380		5,109		14,167		14,614
Taxes other than on income1	1,259		3,213		3,966		9,149
Interest and debt expense	182		35		558		134
Other components of net periodic benefit costs2	158		219		344		485
Total Costs and Other Deductions	38,288		33,547		108,310		96,366
Income Before Income Tax Expense	5,699		2,658		15,677		7,740
Income Tax Expense	1,643		672		4,540		1,589
Net Income	4,056		1,986		11,137		6,151
Less: Net income attributable to noncontrolling interests	9		34		43		67
Net Income Attributable to Chevron Corporation	$	4,047	$	1,952	$	11,094	$	6,084
Per Share of Common Stock:
Net Income Attributable to Chevron Corporation
— Basic	$	2.13	$	1.03	$	5.84	$	3.23
— Diluted	$	2.11	$	1.03	$	5.79	$	3.21
Weighted Average Number of Shares Outstanding (000s)
— Basic	1,900,717		1,882,650		1,899,044		1,881,026
— Diluted	1,917,474		1,895,879		1,916,562		1,894,764
_________________________
1   The three-month and nine-month comparative periods ended September 30, 2017, include excise, value-added and similar taxes of $1,867 million and $5,315 million, respectively, collected on behalf of third parties. Beginning in 2018, these taxes are netted in "Taxes other than on income" in accordance with ASU 2014-09. Refer to Note 17, "Revenue" beginning on page 24.
2   2017 adjusted to conform to ASU 2017-07. Refer to Note 5, "New Accounting Standards" beginning on page 10.

See accompanying notes to consolidated financial statements.

3

CHEVRON CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME

(Unaudited)

	Three Months Ended September 30						Nine Months Ended September 30
	2018			2017			2018			2017
	(Millions of dollars)
Net Income	$	4,056		$	1,986		$	11,137		$	6,151
Currency translation adjustment	(2		)	13			(12		)	37
Unrealized holding gain (loss) on securities:
Net gain (loss) arising during period	1			(2		)	(6		)	(7		)
Defined benefit plans:
Actuarial gain (loss):
Amortization to net income of net actuarial and settlement losses	214			264			522			609
Actuarial gain (loss) arising during period	(92		)	3			(94		)	(11		)
Prior service cost:
Amortization to net income of net prior service costs (credits)	(2		)	(5		)	(9		)	(15		)
Defined benefit plans sponsored by equity affiliates	5			5			18			15
Income tax expense on defined benefit plans	(21		)	(96		)	(95		)	(207		)
Total	104			171			342			391
Other Comprehensive Gain, Net of Tax	103			182			324			421
Comprehensive Income	4,159			2,168			11,461			6,572
Comprehensive income attributable to noncontrolling interests	(9		)	(34		)	(43		)	(67		)
Comprehensive Income Attributable to Chevron Corporation	$	4,150		$	2,134		$	11,418		$	6,505

See accompanying notes to consolidated financial statements.

4

CHEVRON CORPORATION AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEET

(Unaudited)

	At September 30 2018			At December 31 2017
	(Millions of dollars)
ASSETS
Cash and cash equivalents	$	9,686		$	4,813
Marketable securities	60			9
Accounts and notes receivable, net	16,788			15,353
Inventories
Crude oil and petroleum products	3,618			3,142
Chemicals	495			476
Materials, supplies and other	1,916			1,967
Total inventories	6,029			5,585
Prepaid expenses and other current assets	3,020			2,800
Total Current Assets	35,583			28,560
Long-term receivables, net	2,460			2,849
Investments and advances	34,672			32,497
Properties, plant and equipment, at cost	344,949			344,485
Less: Accumulated depreciation, depletion and amortization	173,304			166,773
Properties, plant and equipment, net	171,645			177,712
Deferred charges and other assets	6,745			7,017
Goodwill	4,518			4,531
Assets held for sale	983			640
Total Assets	$	256,606		$	253,806
LIABILITIES AND EQUITY
Short-term debt	$	6,121		$	5,192
Accounts payable	15,335			14,565
Accrued liabilities	5,029			5,267
Federal and other taxes on income	1,797			1,600
Other taxes payable	901			1,113
Total Current Liabilities	29,183			27,737
Long-term debt	29,854			33,477
Capital lease obligations	135			94
Deferred credits and other noncurrent obligations	20,414			21,106
Noncurrent deferred income taxes	15,624			14,652
Noncurrent employee benefit plans	6,723			7,421
Total Liabilities*	101,933			104,487
Preferred stock (authorized 100,000,000 shares, $1.00 par value, none issued)	—			—
Common stock (authorized 6,000,000,000 shares; $0.75 par value; 2,442,676,580 shares issued at September 30, 2018, and December 31, 2017)	1,832			1,832
Capital in excess of par value	17,080			16,848
Retained earnings	178,816			174,106
Accumulated other comprehensive loss	(3,265		)	(3,589		)
Deferred compensation and benefit plan trust	(240		)	(240		)
Treasury stock, at cost (531,902,211 and 537,974,695 shares at September 30, 2018, and December 31, 2017, respectively)	(40,648		)	(40,833		)
Total Chevron Corporation Stockholders’ Equity	153,575			148,124
Noncontrolling interests	1,098			1,195
Total Equity	154,673			149,319
Total Liabilities and Equity	$	256,606		$	253,806
___________________________
* Refer to Note 14, "Other Contingencies and Commitments" beginning on page 20.

See accompanying notes to consolidated financial statements.

5

CHEVRON CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENT OF CASH FLOWS

(Unaudited)

	Nine Months Ended September 30
	2018			2017
	(Millions of dollars)
Operating Activities
Net Income	$	11,137		$	6,151
Adjustments
Depreciation, depletion and amortization	14,167			14,614
Dry hole expense	596			140
Distributions less than income from equity affiliates 1	(2,526		)	(2,284		)
Net before-tax gains on asset retirements and sales	(560		)	(2,139		)
Net foreign currency effects	330			145
Deferred income tax provision	806			(464		)
Net decrease (increase) in operating working capital 2	(1,882		)	(548		)
Decrease (increase) in long-term receivables	363			(537		)
Net decrease (increase) in other deferred charges 2	(60		)	(82		)
Cash contributions to employee pension plans	(941		)	(825		)
Other	37			74
Net Cash Provided by Operating Activities 1, 2	21,467			14,245
Investing Activities
Capital expenditures	(9,801		)	(9,763		)
Proceeds and deposits related to asset sales and returns of investment 1, 2	2,116			4,765
Net sales (purchases) of marketable securities	(51		)	—
Net repayment (borrowing) of loans by equity affiliates	78			(36		)
Net Cash Used for Investing Activities 1, 2	(7,658		)	(5,034		)
Financing Activities
Net borrowings (repayments) of short-term obligations	2,199			(7,185		)
Proceeds from issuance of long-term debt	217			3,991
Repayments of long-term debt and other financing obligations	(5,227		)	(1,028		)
Cash dividends — common stock	(6,382		)	(6,093		)
Distributions to noncontrolling interests	(87		)	(66		)
Net sales of treasury shares	337			649
Net Cash Used for Financing Activities	(8,943		)	(9,732		)
Effect of Exchange Rate Changes on Cash, Cash Equivalents and Restricted Cash 2	(68		)	62
Net Change in Cash, Cash Equivalents and Restricted Cash 2	4,798			(459		)
Cash, Cash Equivalents and Restricted Cash at January 1 2	5,943			8,414
Cash, Cash Equivalents and Restricted Cash at September 30 2	$	10,741		$	7,955
_________________________
1   2017 adjusted to conform to Accounting Standards Update 2016-15. Refer to Note 4, "Information Relating to the Consolidated Statement of Cash Flows" beginning on page 8.
2   2017 adjusted to conform to Accounting Standards Update 2016-18. Refer to Note 4, "Information Relating to the Consolidated Statement of Cash Flows" beginning on page 8.

See accompanying notes to consolidated financial statements.

6

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Note 1. Interim Financial Statements

The accompanying consolidated financial statements of Chevron Corporation and its subsidiaries (together, Chevron or the company) have not been audited by an independent registered public accounting firm. In the opinion of the company’s management, the interim data includes all adjustments necessary for a fair statement of the results for the interim periods. These adjustments were of a normal recurring nature. The results for the three- and nine-month periods ended September 30, 2018, are not necessarily indicative of future financial results. The term “earnings” is defined as net income attributable to Chevron.

Certain notes and other information have been condensed or omitted from the interim financial statements presented in this Quarterly Report on Form 10-Q. Therefore, these financial statements should be read in conjunction with the company’s 2017 Annual Report on Form 10-K.

Note 2. Changes in Accumulated Other Comprehensive Losses

The change in Accumulated Other Comprehensive Losses (AOCL) presented on the Consolidated Balance Sheet and the impact of significant amounts reclassified from AOCL on information presented in the Consolidated Statement of Income for the nine months ended September 30, 2018, are reflected in the table below.

Changes in Accumulated Other Comprehensive Income (Loss) by Component ⁽¹⁾ 

	Nine Months Ended September 30, 2018
	Currency Translation Adjustment			Unrealized Holding Gains (Losses) on Securities			Derivatives			Defined Benefit Plans			Total
	(Millions of dollars)
Balance at January 1	$	(105	)	$	(5	)	$	(2	)	$	(3,477	)	$	(3,589	)
Components of Other Comprehensive Income (Loss):
Before Reclassifications	(12		)	(6		)	—			(53		)	(71		)
Reclassifications (2)	—			—			—			395			395
Net Other Comprehensive Income (Loss)	(12		)	(6		)	—			342			324
Balance at September 30	$	(117	)	$	(11	)	$	(2	)	$	(3,135	)	$	(3,265	)

________________________________

⁽¹⁾ All amounts are net of tax.

⁽²⁾ Refer to Note 11, Employee Benefits for reclassified components totaling $513 million that are included in employee benefit costs for the nine months ended September 30, 2018. Related income taxes for the same period, totaling $118 million, are reflected in "Income Tax Expense" on the Consolidated Statement of Income. All other reclassified amounts were insignificant.

Note 3. Noncontrolling Interests

Ownership interests in the company’s subsidiaries held by parties other than the parent are presented separately from the parent’s equity on the Consolidated Balance Sheet. The amount of consolidated net income attributable to the parent and the noncontrolling interests are both presented on the face of the Consolidated Statement of Income.

Activity for the equity attributable to noncontrolling interests for the first nine months of 2018 and 2017 is as follows:

	2018									2017
	Chevron Corporation Stockholders’ Equity			Non-controlling Interest			Total Equity			Chevron Corporation Stockholders’ Equity			Non-controlling Interest			Total Equity
	(Millions of dollars)
Balance at January 1	$	148,124		$	1,195		$	149,319		$	145,556		$	1,166		$	146,722
Net income	11,094			43			11,137			6,084			67			6,151
Dividends	(6,384		)	—			(6,384		)	(6,095		)	—			(6,095		)
Distributions to noncontrolling interests	—			(87		)	(87		)	—			(66		)	(66		)
Treasury shares, net	185			—			185			597			—			597
Other changes, net*	556			(53		)	503			571			31			602
Balance at September 30	$	153,575		$	1,098		$	154,673		$	146,713		$	1,198		$	147,911

 __________________________________________

* Includes components of comprehensive income, which are disclosed separately in the Consolidated Statement of Comprehensive Income.

7

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

Note 4. Information Relating to the Consolidated Statement of Cash Flows

The “Net decrease (increase) in operating working capital” was composed of the following operating changes:

	Nine Months Ended September 30
	2018			2017
	(Millions of dollars)
Decrease (increase) in accounts and notes receivable	$	(1,741	)	$	265
Decrease (increase) in inventories	(749		)	(436		)
Decrease (increase) in prepaid expenses and other current assets 1	(310		)	235
Increase (decrease) in accounts payable and accrued liabilities 1	887			(621		)
Increase (decrease) in income and other taxes payable	31			9
Net decrease (increase) in operating working capital 1	$	(1,882	)	$	(548	)
_____________________
1   2017 amount adjusted to conform to Accounting Standards Update 2016-18.

“Net Cash Provided by Operating Activities” included the following cash payments for interest on debt and for income taxes:

	Nine Months Ended September 30
	2018		2017
	(Millions of dollars)
Interest on debt (net of capitalized interest)	$	502	$	30
Income taxes	3,526		2,203

"Other" includes changes in postretirement benefits obligations and other long-term liabilities.

The “Net sales (purchases) of marketable securities” consisted of the following gross amounts:

	Nine Months Ended September 30
	2018			2017
	(Millions of dollars)
Marketable securities purchased	$	(51	)	$	(3	)
Marketable securities sold	—			3
Net sales (purchases) of marketable securities	$	(51	)	$	—

The “Net repayment (borrowing) of loans by equity affiliates” consisted of the following gross amounts:

	Nine Months Ended September 30
	2018		2017
	(Millions of dollars)
Borrowing of loans by equity affiliates	$	—	$	(142	)
Repayment of loans by equity affiliates	78		106
Net repayment (borrowing) of loans by equity affiliates	$	78	$	(36	)

The “Net borrowings (repayments) of short-term obligations" consisted of the following gross and net amounts:

	Nine Months Ended September 30
	2018			2017
	(Millions of dollars)
Repayments of short-term obligations	$	(3,379	)	$	(8,403	)
Proceeds from issuances of short-term obligations	2,452			3,415
Net borrowings (repayments) of short-term obligations with three months or less maturity	3,126			(2,197		)
Net borrowings (repayments) of short-term obligations	$	2,199		$	(7,185	)

8

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

The “Net sales of treasury shares” represents the value of shares sold for share-based compensation plans, net of purchases. Purchases totaled $751 million for the first nine months in 2018 and $1 million for the first nine months in 2017. During the first nine months in 2018, the company purchased 6.3 million shares under its share repurchase program for $750 million. No purchases were made under the company's share repurchase program in the first nine months of 2017.

The company paid dividends of $1.12 per share of common stock in third quarter 2018 and $3.36 per share in the first nine months of 2018. This compares to dividends of $1.08 and $3.24 per share paid in the corresponding year-ago periods.

The major components of “Capital expenditures” and the reconciliation of this amount to the capital and exploratory expenditures, including equity affiliates, are as follows:

	Nine Months Ended September 30
	2018		2017
	(Millions of dollars)
Additions to properties, plant and equipment	$	9,489	$	9,615
Additions to investments	36		16
Current year dry hole expenditures	276		131
Payments for other liabilities and assets, net	—		1
Capital expenditures	9,801		9,763
Expensed exploration expenditures	364		368
Assets acquired through capital lease obligations	65		3
Capital and exploratory expenditures, excluding equity affiliates	10,230		10,134
Company’s share of expenditures by equity affiliates	4,115		3,252
Capital and exploratory expenditures, including equity affiliates	$	14,345	$	13,386

On January 1, 2018, Chevron adopted Accounting Standards Updates (ASU) 2016-15 and 2016-18, which require retrospective adjustment of prior periods in the Statement of Cash Flows.

In addition to other requirements, ASU 2016-15 specifies new standards for the classification of distributions from equity affiliates. In adopting these new standards, Chevron utilized the cumulative earnings approach to evaluate returns on and returns of investment from equity affiliates. For the first nine months of 2017, a total of $162 million was reclassified from “Distributions less than income from equity affiliates” to “Proceeds and deposits related to asset sales and returns of investment.”

Adoption of ASU 2016-18 requires the inclusion of restricted cash and associated changes in restricted cash in the Consolidated Statement of Cash Flows. The impact of ASU 2016-18 is captured across several line items in the Statement of Cash Flows, including “Net decrease (increase) in operating working capital,” “Decrease (increase) in other deferred charges,” and “Proceeds and deposits related to asset sales and returns of investment” with associated net changes captured in both “Net Cash Provided by Operating Activities” and “Net Cash Used for Investing Activities.” The line item “Net sales (purchases) of other short-term investments” was removed in conjunction with the adoption of ASU 2016-18.

The table below quantifies the beginning and ending balances of restricted cash and restricted cash equivalents in the Consolidated Balance Sheet:

	At September 30				At December 31
	2018		2017		2017		2016
	(Millions of dollars)				(Millions of dollars)
Cash and Cash Equivalents	$	9,686	$	6,641	$	4,813	$	6,988
Restricted cash included in "Prepaid expenses and other current assets"	277		523		405		488
Restricted cash included in "Deferred charges and other assets"	778		791		725		938
Total Cash, Cash Equivalents and Restricted Cash	$	10,741	$	7,955	$	5,943	$	8,414

9

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

Additional information related to "Restricted Cash" is included on page 23 in Note 15 under the heading "Restricted Cash."

Note 5. New Accounting Standards

Revenue Recognition (Topic 606): Revenue from Contracts with CustomersOn January 1, 2018, Chevron adopted ASU 2014-09 and its related amendments using the modified retrospective transition method, which did not require the restatement of prior periods. The impact of the adoption of the standard did not have a material effect on the company’s consolidated financial statements. For additional information on the company’s revenue, refer to Note 17 beginning on page 24.

Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash PaymentsEffective January 1, 2018, Chevron adopted ASU 2016-15 on a retrospective basis. The standard provides clarification on how certain cash receipts and cash payments are presented and classified on the Consolidated Statement of Cash Flows. The adoption of this ASU did not have a material impact on the company's Consolidated Statement of Cash Flows. For additional information, refer to Note 4 beginning on page 8.

Statement of Cash Flows (Topic 230): Restricted Cash Effective January 1, 2018, Chevron adopted ASU 2016-18 on a retrospective basis. The standard requires an entity to explain the changes in the total of cash, cash equivalents, restricted cash and restricted cash equivalents on the Consolidated Statement of Cash Flows and to provide a reconciliation to the Consolidated Balance Sheet when the cash, cash equivalents, restricted cash and restricted cash equivalents are not separately presented or are presented in more than one line item on the Consolidated Balance Sheet. The company’s restricted cash balances are now included in the beginning and ending balances on the Consolidated Statement of Cash Flows. For additional information, refer to Note 4 beginning on page 8.

Other Income - Gains and Losses from the Derecognition of Nonfinancial Assets (Subtopic 610-20)On January 1, 2018, the company adopted ASU 2017-05 which provides clarification regarding the guidance on accounting for the derecognition of nonfinancial assets. The adoption of the standard had no impact on the company’s consolidated financial statements.

Compensation - Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost Effective January 1, 2018, Chevron adopted ASU 2017-07 on a retrospective basis. The standard requires the disaggregation of the service cost component from the other components of net periodic benefit cost and allows only the service cost component of net benefit cost to be eligible for capitalization. The effects of retrospective adoption on the Consolidated Statement of Income for the nine-month period ended September 30, 2017 were to move $234 million from "Operating expenses" and $251 million from "Selling, general and administrative expenses" to "Other components of net periodic benefits cost."

Leases (Topic 842) In February 2016, the Financial Accounting Standards Board (FASB) issued ASU 2016-02 which becomes effective for the company January 1, 2019. The standard requires that lessees present right-of-use assets and lease liabilities on the balance sheet. The company plans to elect the short-term lease exception provided for in the standard and therefore will only recognize right-of-use assets and lease liabilities for leases with a term greater than one year. The company further intends to elect the option to apply the transition provisions of the new standard at the adoption date instead of the earliest comparative period presented in the financial statements. The company continues to focus its implementation efforts on accounting policy and disclosure updates and system implementation necessary to meet the standard's requirements. The company is continuing its review of contracts which may result in certain contracts, currently not classified as leases, being classified as operating leases under the new standard. The company does not expect the adoption of the ASU to have a material impact on finance leases, which are currently referred to as capital leases. The company estimates the operating lease right-of-use assets and lease liabilities to be recognized by the company on January 1, 2019 will be approximately $3 to $4 billion. The operating lease balance could change as contracts are executed, modified, renewed, or expired. The estimate could also be impacted by changes to interest and foreign exchange rates. The company expects the implementation of the standard will have a minimal impact on the Consolidated Statement of Income and Consolidated Statement of Cash Flows.

10

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

Income Statement - Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income In February 2018, the FASB issued ASU 2018-02, which becomes effective for the company January 1, 2019.  The standard permits companies to reclassify the residual tax effects in Accumulated Other Comprehensive Income as a result of tax reform to retained earnings and also requires additional new disclosures.  The company is evaluating the effect of the standard on its consolidated financial statements.

Financial Instruments - Credit Losses (Topic 326) In June 2016, the FASB issued ASU 2016-13, which becomes effective for the company beginning January 1, 2020. The standard requires companies to use forward-looking information to calculate credit loss estimates. The company is evaluating the effect of the standard on its consolidated financial statements.

Note 6. Assets Held For Sale

At September 30, 2018, the company classified $983 million of net properties, plant and equipment as “Assets held for sale” on the Consolidated Balance Sheet. These assets are primarily associated with upstream operations that are anticipated to be sold in the next 12 months. The revenues and earnings contributions of these assets in 2017 and the first nine months of 2018 were not material.

Note 7. Operating Segments and Geographic Data

Although each subsidiary of Chevron is responsible for its own affairs, Chevron Corporation manages its investments in these subsidiaries and their affiliates. The investments are grouped into two business segments, Upstream and Downstream, representing the company’s “reportable segments” and “operating segments.” Upstream operations consist primarily of exploring for, developing and producing crude oil and natural gas; liquefaction, transportation and regasification associated with liquefied natural gas (LNG); transporting crude oil by major international oil export pipelines; processing, transporting, storage and marketing of natural gas; and a gas-to-liquids plant. Downstream operations consist primarily of refining of crude oil into petroleum products; marketing of crude oil and refined products; transporting of crude oil and refined products by pipeline, marine vessel, motor equipment and rail car; and manufacturing and marketing of commodity petrochemicals, plastics for industrial uses, and fuel and lubricant additives. All Other activities of the company include worldwide cash management and debt financing activities, corporate administrative functions, insurance operations, real estate activities and technology companies.

The company’s segments are managed by “segment managers” who report to the “chief operating decision maker” (CODM). The segments represent components of the company that engage in activities (a) from which revenues are earned and expenses are incurred; (b) whose operating results are regularly reviewed by the CODM, which makes decisions about resources to be allocated to the segments and assesses their performance; and (c) for which discrete financial information is available.

The company’s primary country of operation is the United States of America, its country of domicile. Other components of the company’s operations are reported as “International” (outside the United States).

11

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

Segment Earnings The company evaluates the performance of its operating segments on an after-tax basis, without considering the effects of debt financing interest expense or investment interest income, both of which are managed by the company on a worldwide basis. Corporate administrative costs and assets are not allocated to the operating segments. However, operating segments are billed for the direct use of corporate services. Nonbillable costs remain at the corporate level in “All Other.” Earnings by major operating area for the three- and nine-month periods ended September 30, 2018 and 2017, are presented in the following table:

	Three Months Ended September 30						Nine Months Ended September 30
Segment Earnings	2018			2017			2018			2017
	(Millions of dollars)
Upstream
United States	$	828		$	(26	)	$	2,314		$	(48	)
International	2,551			515			7,712			2,907
Total Upstream	3,379			489			10,026			2,859
Downstream
United States	748			640			1,847			1,743
International	625			1,174			1,092			2,192
Total Downstream	1,373			1,814			2,939			3,935
Total Segment Earnings	4,752			2,303			12,965			6,794
All Other
Interest expense	(171		)	(30		)	(524		)	(115		)
Interest income	37			13			84			42
Other	(571		)	(334		)	(1,431		)	(637		)
Net Income Attributable to Chevron Corporation	$	4,047		$	1,952		$	11,094		$	6,084

Segment Assets Segment assets do not include intercompany investments or intercompany receivables. “All Other” assets consist primarily of worldwide cash, cash equivalents, time deposits and marketable securities; real estate; information systems; technology companies; and assets of the corporate administrative functions. Segment assets at September 30, 2018, and December 31, 2017, are as follows:

Segment Assets	At September 30 2018		At December 31 2017
	(Millions of dollars)
Upstream
United States	$	42,126	$	40,770
International	155,396		159,612
Goodwill	4,518		4,531
Total Upstream	202,040		204,913
Downstream
United States	24,141		23,202
International	17,628		17,434
Total Downstream	41,769		40,636
Total Segment Assets	243,809		245,549
All Other
United States	5,353		4,938
International	7,444		3,319
Total All Other	12,797		8,257
Total Assets — United States	71,620		68,910
Total Assets — International	180,468		180,365
Goodwill	4,518		4,531
Total Assets	$	256,606	$	253,806

12

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

Segment Sales and Other Operating Revenues Segment sales and other operating revenues, including internal transfers, for the three- and nine-month periods ended September 30, 2018 and 2017, are presented in the following table. Products are transferred between operating segments at internal product values that approximate market prices. Revenues for the upstream segment are derived primarily from the production and sale of crude oil and natural gas, as well as the sale of third-party production of natural gas. Revenues for the downstream segment are derived from the refining and marketing of petroleum products such as gasoline, jet fuel, gas oils, lubricants, residual fuel oils and other products derived from crude oil. This segment also generates revenues from the manufacture and sale of fuel and lubricant additives and the transportation and trading of refined products and crude oil. “All Other” activities include revenues from insurance operations, real estate activities and technology companies.

	Three Months Ended September 30						Nine Months Ended September 30
Sales and Other Operating Revenues	2018			2017			2018			2017
	(Millions of dollars)
Upstream
United States	$	6,784		$	3,245		$	16,405		$	9,620
International	10,312			7,191			27,848			20,624
Subtotal	17,096			10,436			44,253			30,244
Intersegment Elimination — United States	(4,277		)	(2,298		)	(10,219		)	(6,737		)
Intersegment Elimination — International	(4,045		)	(2,828		)	(10,681		)	(8,256		)
Total Upstream	8,774			5,310			23,353			15,251
Downstream *
United States	16,405			13,452			45,137			39,206
International	18,568			15,298			52,571			44,512
Subtotal	34,973			28,750			97,708			83,718
Intersegment Elimination — United States	(1,360		)	(5		)	(1,804		)	(11		)
Intersegment Elimination — International	(339		)	(216		)	(869		)	(818		)
Total Downstream	33,274			28,529			95,035			82,889
All Other
United States	264			260			759			773
International	6			6			16			19
Subtotal	270			266			775			792
Intersegment Elimination — United States	(207		)	(207		)	(583		)	(621		)
Intersegment Elimination — International	(6		)	(6		)	(16		)	(18		)
Total All Other	57			53			176			153
Sales and Other Operating Revenues
United States	23,454			16,957			62,302			49,599
International	28,885			22,495			80,434			65,155
Subtotal	52,339			39,452			142,736			114,754
Intersegment Elimination — United States	(5,844		)	(2,510		)	(12,606		)	(7,369		)
Intersegment Elimination — International	(4,390		)	(3,050		)	(11,566		)	(9,092		)
Total Sales and Other Operating Revenues	$	42,105		$	33,892		$	118,564		$	98,293
_____________________________
* The three-month and nine-month comparative periods ended September 30, 2017, include excise, value-added and similar taxes of $1,867 million and $5,315 million, respectively, collected on behalf of third parties. Beginning in 2018, these taxes are netted in "Taxes other than on income" in accordance with ASU 2014-09. Refer to Note 17, "Revenue" beginning on page 24.

Note 8. Summarized Financial Data — Chevron U.S.A. Inc.

Chevron U.S.A. Inc. (CUSA) is a major subsidiary of Chevron Corporation. CUSA and its subsidiaries manage and operate most of Chevron’s U.S. businesses. Assets include those related to the exploration and production of crude oil, natural gas and natural gas liquids and those associated with refining, marketing, and supply and distribution of products derived from petroleum, excluding most of the regulated pipeline operations of Chevron. CUSA also holds the company’s investment in the Chevron Phillips Chemical Company LLC joint venture, which is accounted for using the equity method.

13

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

The summarized financial information for CUSA and its consolidated subsidiaries is as follows:

	Nine Months Ended September 30
	2018		2017
	(Millions of dollars)
Sales and other operating revenues*	$	93,434	$	75,759
Costs and other deductions*	90,912		75,403
Net income attributable to CUSA	2,929		1,315
_____________________________
* 2017 includes excise, value-added and similar taxes collected on behalf of third parties of $3,268 million. Beginning in   2018, these taxes are netted in "Taxes other than on income" in accordance with ASU 2014-09.

	At September 30 2018		At December 31 2017
	(Millions of dollars)
Current assets	$	15,036	$	12,163
Other assets	55,209		54,994
Current liabilities	18,329		17,379
Other liabilities	13,049		12,541
Total CUSA net equity	$	38,867	$	37,237
Memo: Total debt	$	3,049	$	3,056

Note 9. Summarized Financial Data — Tengizchevroil LLP

Chevron has a 50 percent equity ownership interest in Tengizchevroil LLP (TCO). Summarized financial information for 100 percent of TCO is presented in the following table:

	Nine Months Ended September 30
	2018		2017
	(Millions of dollars)
Sales and other operating revenues	$	13,255	$	9,619
Costs and other deductions	5,780		4,806
Net income attributable to TCO	5,265		3,402

Note 10. Summarized Financial Data — Chevron Phillips Chemical Company LLC

Chevron has a 50 percent equity ownership interest in Chevron Phillips Chemical Company LLC (CPChem). Summarized financial information for 100 percent of CPChem is presented in the table below:

	Nine Months Ended September 30
	2018		2017
	(Millions of dollars)
Sales and other operating revenues	$	8,773	$	6,816
Costs and other deductions	7,475		5,732
Net income attributable to CPChem	1,766		1,424

Note 11. Employee Benefits

Chevron has defined benefit pension plans for many employees. The company typically prefunds defined benefit plans as required by local regulations or in certain situations where prefunding provides economic advantages. In the United States, all qualified plans are subject to the Employee Retirement Income Security Act minimum funding standard. The company does not typically fund U.S. nonqualified pension plans that are not subject to funding requirements under laws and regulations because contributions to these pension plans may be less economic and investment returns may be less attractive than the company’s other investment alternatives.

The company also sponsors other postretirement employee benefit (OPEB) plans that provide medical and dental benefits, as well as life insurance for some active and qualifying retired employees. The plans are unfunded, and the company and the retirees share the costs. For the company’s main U.S. medical plan, the increase to the

14

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

pre-Medicare company contribution for retiree medical coverage is limited to no more than 4 percent each year. Certain life insurance benefits are paid by the company.

The components of net periodic benefit costs for 2018 and 2017 are as follows:

	Three Months Ended September 30						Nine Months Ended September 30
	2018			2017			2018			2017
	(Millions of dollars)
Pension Benefits
United States
Service cost	$	120		$	122		$	360		$	366
Interest cost	93			91			278			274
Expected return on plan assets	(159		)	(149		)	(477		)	(447		)
Amortization of prior service costs (credits)	—			(1		)	1			(3		)
Amortization of actuarial losses (gains)	76			85			228			255
Settlement losses	128			169			260			325
Total United States	258			317			650			770
International
Service cost	36			38			109			114
Interest cost	49			54			155			164
Expected return on plan assets	(62		)	(61		)	(193		)	(178		)
Amortization of prior service costs (credits)	2			3			8			9
Amortization of actuarial losses (gains)	6			11			23			33
Curtailment losses	3			—			3			—
Total International	34			45			105			142
Net Periodic Pension Benefit Costs	$	292		$	362		$	755		$	912
Other Benefits*
Service cost	$	10		$	8		$	31		$	24
Interest cost	24			23			72			71
Amortization of prior service costs (credits)	(7		)	(7		)	(21		)	(21		)
Amortization of actuarial losses (gains)	4			(1		)	11			(4		)
Net Periodic Other Benefit Costs	$	31		$	23		$	93		$	70

_ ___________________________________

* Includes costs for U.S. and international OPEB plans. Obligations for plans outside the United States are not significant relative to the company’s total OPEB obligation.

Through September 30, 2018, a total of $941 million was contributed to employee pension plans (including $788 million to the U.S. plans). Total contributions for the full year are currently estimated to be $1.05 billion ($800 million for the U.S. plans and $250 million for the international plans). Actual contribution amounts are dependent upon plan investment returns, changes in pension obligations, regulatory requirements and other economic factors. Additional funding may ultimately be required if investment returns are insufficient to offset increases in plan obligations.

During the first nine months of 2018, the company contributed $125 million to its OPEB plans. The company anticipates contributing approximately $50 million during fourth quarter 2018.

Note 12. Income Taxes

The increase in income tax expense between quarterly periods of $971 million, from $672 million in 2017 to $1.64 billion in 2018, is a result of the year-over-year increase in total income before income tax expense, which is primarily due to effects of higher crude oil prices and higher production. The company’s effective tax rate changed between periods from 25 percent in 2017 to 29 percent in 2018. The change in effective tax rate is primarily a consequence of the mix effect resulting from the absolute level of earnings or losses and whether they arose in higher or lower tax rate jurisdictions.

The increase in income tax expense for the nine months of $2.95 billion, from $1.59 billion in 2017 to $4.54 billion in 2018, is a result of the year-over-year increase in total income before income tax expense, which is

15

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

primarily due to effects of higher crude oil prices and higher production. The company’s effective tax rate changed between periods from 21 percent in 2017 to 29 percent in 2018. The change in effective tax rate is primarily a consequence of the mix effect resulting from the absolute level of earnings or losses and whether they arose in higher or lower tax rate jurisdictions.

U.S. tax reform resulted in the remeasurement of U.S. deferred tax assets and liabilities in 2017. The company's U.S. tax return was prepared and filed in the quarter ended September 30, 2018, and did not result in any material change to the provisional amounts that were recognized in 2017. Further proposed regulations are expected to be issued later in 2018 which may result in a change to the provisional amounts that were recognized in 2017.

Tax positions for Chevron and its subsidiaries and affiliates are subject to income tax audits by many tax jurisdictions throughout the world. For the company’s major tax jurisdictions, examinations of tax returns for certain prior tax years had not been completed as of September 30, 2018. For these jurisdictions, the latest years for which income tax examinations had been finalized were as follows: United States — 2011, Nigeria — 2000, Australia — 2006 and Kazakhstan — 2007.

The company engages in ongoing discussions with tax authorities regarding the resolution of tax matters in the various jurisdictions. Both the outcomes for these tax matters and the timing of resolution and/or closure of the tax audits are highly uncertain. However, it is reasonably possible that developments regarding tax matters in certain tax jurisdictions may result in significant increases or decreases in the company’s total unrecognized tax benefits within the next 12 months. Given the number of years that still remain subject to examination and the number of matters being examined in the various tax jurisdictions, the company is unable to estimate the range of possible adjustments to the balance of unrecognized tax benefits.

Note 13. Litigation

MTBE

Chevron and many other companies in the petroleum industry have used methyl tertiary butyl ether (MTBE) as a gasoline additive. Chevron is a party to eight pending lawsuits and claims, the majority of which involve numerous other petroleum marketers and refiners. Resolution of these lawsuits and claims may ultimately require the company to correct or ameliorate the alleged effects on the environment of prior release of MTBE by the company or other parties. Additional lawsuits and claims related to the use of MTBE, including personal-injury claims, may be filed in the future. The company’s ultimate exposure related to pending lawsuits and claims is not determinable. The company no longer uses MTBE in the manufacture of gasoline in the United States.

Ecuador

Background Chevron is a defendant in a civil lawsuit initiated in the Superior Court of Nueva Loja in Lago Agrio, Ecuador, in May 2003 by plaintiffs who claim to be representatives of certain residents of an area where an oil production consortium formerly had operations. The lawsuit alleges damage to the environment from the oil exploration and production operations and seeks unspecified damages to fund environmental remediation and restoration of the alleged environmental harm, plus a health monitoring program. Until 1992, Texaco Petroleum Company (Texpet), a subsidiary of Texaco Inc., was a minority member of this consortium with Petroecuador, the Ecuadorian state-owned oil company, as the majority partner; since 1990, the operations have been conducted solely by Petroecuador. At the conclusion of the consortium and following an independent third-party environmental audit of the concession area, Texpet entered into a formal agreement with the Republic of Ecuador and Petroecuador for Texpet to remediate specific sites assigned by the government in proportion to Texpet’s ownership share of the consortium. Pursuant to that agreement, Texpet conducted a three-year remediation program at a cost of $40 million. After certifying that the sites were properly remediated, the government granted Texpet and all related corporate entities a full release from any and all environmental liability arising from the consortium operations.

Based on the history described above, Chevron believes that this lawsuit lacks legal or factual merit. As to matters of law, the company believes first, that the court lacks jurisdiction over Chevron; second, that the law under which plaintiffs bring the action, enacted in 1999, cannot be applied retroactively; third, that the claims are barred by the statute of limitations in Ecuador; and, fourth, that the lawsuit is also barred by the releases from liability previously given to Texpet by the Republic of Ecuador and Petroecuador and by the pertinent provincial

16

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

and municipal governments. With regard to the facts, the company believes that the evidence confirms that Texpet’s remediation was properly conducted and that the remaining environmental damage reflects Petroecuador’s failure to timely fulfill its legal obligations and Petroecuador’s further conduct since assuming full control over the operations.

Lago Agrio Judgment In 2008, a mining engineer appointed by the court to identify and determine the cause of environmental damage, and to specify steps needed to remediate it, issued a report recommending that the court assess $18.9 billion, which would, according to the engineer, provide financial compensation for purported damages, including wrongful death claims, and pay for, among other items, environmental remediation, health care systems and additional infrastructure for Petroecuador. The engineer’s report also asserted that an additional $8.4 billion could be assessed against Chevron for unjust enrichment. In 2009, following the disclosure by Chevron of evidence that the judge participated in meetings in which businesspeople and individuals holding themselves out as government officials discussed the case and its likely outcome, the judge presiding over the case was recused. In 2010, Chevron moved to strike the mining engineer’s report and to dismiss the case based on evidence obtained through discovery in the United States indicating that the report was prepared by consultants for the plaintiffs before being presented as the mining engineer’s independent and impartial work and showing further evidence of misconduct. In August 2010, the judge issued an order stating that he was not bound by the mining engineer’s report and requiring the parties to provide their positions on damages within 45 days. Chevron subsequently petitioned for recusal of the judge, claiming that he had disregarded evidence of fraud and misconduct and that he had failed to rule on a number of motions within the statutory time requirement.

In September 2010, Chevron submitted its position on damages, asserting that no amount should be assessed against it. The plaintiffs’ submission, which relied in part on the mining engineer’s report, took the position that damages are between approximately $16 billion and $76 billion and that unjust enrichment should be assessed in an amount between approximately $5 billion and $38 billion. The next day, the judge issued an order closing the evidentiary phase of the case and notifying the parties that he had requested the case file so that he could prepare a judgment. Chevron petitioned to have that order declared a nullity in light of Chevron’s prior recusal petition, and because procedural and evidentiary matters remained unresolved. In October 2010, Chevron’s motion to recuse the judge was granted. A new judge took charge of the case and revoked the prior judge’s order closing the evidentiary phase of the case. On December 17, 2010, the judge issued an order closing the evidentiary phase of the case and notifying the parties that he had requested the case file so that he could prepare a judgment.

On February 14, 2011, the provincial court in Lago Agrio rendered an adverse judgment in the case. The court rejected Chevron’s defenses to the extent the court addressed them in its opinion. The judgment assessed approximately $8.6 billion in damages and approximately $900 million as an award for the plaintiffs’ representatives. It also assessed an additional amount of approximately $8.6 billion in punitive damages unless the company issued a public apology within 15 days of the judgment, which Chevron did not do. On February 17, 2011, the plaintiffs appealed the judgment, seeking increased damages, and on March 11, 2011, Chevron appealed the judgment seeking to have the judgment nullified. On January 3, 2012, an appellate panel in the provincial court affirmed the February 14, 2011 decision and ordered that Chevron pay additional attorneys’ fees in the amount of “0.10% of the values that are derived from the decisional act of this judgment.” The plaintiffs filed a petition to clarify and amplify the appellate decision on January 6, 2012, and the court issued a ruling in response on January 13, 2012, purporting to clarify and amplify its January 3, 2012 ruling, which included clarification that the deadline for the company to issue a public apology to avoid the additional amount of approximately $8.6 billion in punitive damages was within 15 days of the clarification ruling, or February 3, 2012. Chevron did not issue an apology because doing so might be mischaracterized as an admission of liability and would be contrary to facts and evidence submitted at trial. On January 20, 2012, Chevron appealed (called a petition for cassation) the appellate panel’s decision to Ecuador’s National Court of Justice. As part of the appeal, Chevron requested the suspension of any requirement that Chevron post a bond to prevent enforcement under Ecuadorian law of the judgment during the cassation appeal. On February 17, 2012, the appellate panel of the provincial court admitted Chevron’s cassation appeal in a procedural step necessary for the National Court of Justice to hear the appeal. The provincial court appellate panel denied Chevron’s request for suspension of the requirement that Chevron post a bond and stated that it would not comply with the First and Second Interim

17

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

Awards of the international arbitration tribunal discussed below. On March 29, 2012, the matter was transferred from the provincial court to the National Court of Justice, and on November 22, 2012, the National Court agreed to hear Chevron's cassation appeal. On August 3, 2012, the provincial court in Lago Agrio approved a court-appointed liquidator’s report on damages that calculated the total judgment in the case to be $19.1 billion. On November 13, 2013, the National Court ratified the judgment but nullified the $8.6 billion punitive damage assessment, resulting in a judgment of $9.5 billion. On December 23, 2013, Chevron appealed the decision to the Ecuador Constitutional Court, Ecuador's highest court. The reporting justice of the Constitutional Court heard oral arguments on the appeal on July 16, 2015. On July 10, 2018, Ecuador's Constitutional Court released a decision rejecting Chevron's appeal, which sought to nullify the National Court of Justice's judgment against Chevron. No further appeals are available.

Lago Agrio Plaintiffs' Enforcement Actions Chevron has no assets in Ecuador and the Lago Agrio plaintiffs’ lawyers have stated in press releases and through other media that they will seek to enforce the Ecuadorian judgment in various countries and otherwise disrupt Chevron’s operations. On May 30, 2012, the Lago Agrio plaintiffs filed an action against Chevron Corporation, Chevron Canada Limited, and Chevron Canada Finance Limited in the Ontario Superior Court of Justice in Ontario, Canada, seeking to recognize and enforce the Ecuadorian judgment. On May 1, 2013, the Ontario Superior Court of Justice held that the Court has jurisdiction over Chevron and Chevron Canada Limited for purposes of the action, but stayed the action due to the absence of evidence that Chevron Corporation has assets in Ontario. The Lago Agrio plaintiffs appealed that decision and, on December 17, 2013, the Court of Appeal for Ontario affirmed the lower court’s decision on jurisdiction and set aside the stay, allowing the recognition and enforcement action to be heard in the Ontario Superior Court of Justice. Chevron appealed the decision to the Supreme Court of Canada and, on September 4, 2015, the Supreme Court dismissed the appeal and affirmed that the Ontario Superior Court of Justice has jurisdiction over Chevron and Chevron Canada Limited for purposes of the action. The recognition and enforcement proceeding and related preliminary motions are proceeding in the Ontario Superior Court of Justice. On January 20, 2017, the Ontario Superior Court of Justice granted Chevron Canada Limited’s and Chevron Corporation’s motions for summary judgment, concluding that the two companies are separate legal entities with separate rights and obligations. As a result, the Superior Court dismissed the recognition and enforcement claim against Chevron Canada Limited.  Chevron Corporation still remains as a defendant in the action. On February 3, 2017, the Lago Agrio plaintiffs appealed the Superior Court's January 20, 2017 decision. On May 24, 2018, the Court of Appeal for Ontario upheld the Superior Court’s grant of Chevron Canada Limited’s and Chevron Corporation’s motions for summary judgment based on corporate separateness grounds and the dismissal of Chevron Canada Limited from the case. On June 22, 2018, the Lago Agrio plaintiffs filed leave to appeal the decision of the Court of Appeal for Ontario to the Supreme Court of Canada.

On June 27, 2012, the Lago Agrio plaintiffs filed a complaint against Chevron Corporation in the Superior Court of Justice in Brasilia, Brazil, seeking to recognize and enforce the Ecuadorian judgment. Chevron has answered the complaint. In accordance with Brazilian procedure, the matter was referred to the public prosecutor for a nonbinding opinion of the issues raised in the complaint. On May 13, 2015, the public prosecutor issued its nonbinding opinion and recommended that the Superior Court of Justice reject the plaintiffs’ recognition and enforcement request, finding, among other things, that the Lago Agrio judgment was procured through fraud and corruption and cannot be recognized in Brazil because it violates Brazilian and international public order. On November 29, 2017, the Superior Court of Justice issued a decision dismissing the Lago Agrio plaintiffs’ recognition and enforcement proceeding based on jurisdictional grounds. On June 15, 2018, this decision became a final judgment in Brazil. No further appeals are available.

On October 15, 2012, the provincial court in Lago Agrio issued an ex parte embargo order that purports to order the seizure of assets belonging to separate Chevron subsidiaries in Ecuador, Argentina and Colombia. On November 6, 2012, at the request of the Lago Agrio plaintiffs, a court in Argentina issued a Freeze Order against Chevron Argentina S.R.L. and another Chevron subsidiary, Ingeniero Norberto Priu, requiring shares of both companies to be "embargoed," requiring third parties to withhold 40 percent of any payments due to Chevron Argentina S.R.L. and ordering banks to withhold 40 percent of the funds in Chevron Argentina S.R.L. bank accounts. On December 14, 2012, the Argentinean court rejected a motion to revoke the Freeze Order but modified

18

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

it by ordering that third parties are not required to withhold funds but must report their payments. The court also clarified that the Freeze Order relating to bank accounts excludes taxes. On January 30, 2013, an appellate court upheld the Freeze Order, but on June 4, 2013, the Supreme Court of Argentina revoked the Freeze Order in its entirety. On December 12, 2013, the Lago Agrio plaintiffs served Chevron with notice of their filing of an enforcement proceeding in the National Court, First Instance, of Argentina. Chevron filed its answer on February 27, 2014 to which the Lago Agrio plaintiffs responded on December 29, 2015. On April 19, 2016, the public prosecutor in Argentina issued a non-binding opinion recommending to the National Court, First Instance, of Argentina that it reject the Lago Agrio plaintiffs' request to recognize the Ecuadorian judgment in Argentina. On February 24, 2017, the public prosecutor in Argentina issued a supplemental opinion reaffirming its previous recommendations. On November 1, 2017, the National Court, First Instance, of Argentina issued a decision dismissing the Lago Agrio plaintiffs' recognition and enforcement proceeding based on jurisdictional grounds. On November 2, 2017, the Lago Agrio plaintiffs appealed this decision to the Federal Civil Court of Appeals. On July 3, 2018, the Federal Civil Court of Appeals affirmed the National Court, First Instance’s, dismissal of the Lago Agrio plaintiffs’ recognition and enforcement action based on jurisdictional grounds. On October 5, 2018, the Federal Civil Court of Appeals granted, in part, the admissibility of the Lago Agrio Plaintiffs’ appeal to the Supreme Court of Argentina.

Chevron continues to believe the provincial court’s judgment is illegitimate and unenforceable in Ecuador, the United States and other countries. The company also believes the judgment is the product of fraud and contrary to the legitimate scientific evidence. Chevron cannot predict the timing or ultimate outcome of any enforcement action. Chevron expects to continue a vigorous defense of any imposition of liability and to contest and defend any and all enforcement actions.

Company's Bilateral Investment Treaty Arbitration Claims Chevron and Texpet filed an arbitration claim in September 2009 against the Republic of Ecuador before an arbitral tribunal presiding in the Permanent Court of Arbitration in The Hague under the Rules of the United Nations Commission on International Trade Law. The claim alleges violations of the Republic of Ecuador’s obligations under the United States–Ecuador Bilateral Investment Treaty (BIT) and breaches of the settlement and release agreements between the Republic of Ecuador and Texpet (described above), which are investment agreements protected by the BIT. Through the arbitration, Chevron and Texpet are seeking relief against the Republic of Ecuador, including a declaration that any judgment against Chevron in the Lago Agrio litigation constitutes a violation of Ecuador’s obligations under the BIT. On January 25, 2012, the Tribunal issued its First Interim Measures Award requiring the Republic of Ecuador to take all measures at its disposal to suspend or cause to be suspended the enforcement or recognition within and outside of Ecuador of any judgment against Chevron in the Lago Agrio case pending further order of the Tribunal. On February 16, 2012, the Tribunal issued a Second Interim Award mandating that the Republic of Ecuador take all measures necessary (whether by its judicial, legislative or executive branches) to suspend or cause to be suspended the enforcement and recognition within and outside of Ecuador of the judgment against Chevron. On February 27, 2012, the Tribunal issued a Third Interim Award confirming its jurisdiction to hear Chevron's arbitration claims. On February 7, 2013, the Tribunal issued its Fourth Interim Award in which it declared that the Republic of Ecuador “has violated the First and Second Interim Awards under the [BIT], the UNCITRAL Rules and international law in regard to the finalization and enforcement subject to execution of the Lago Agrio Judgment within and outside Ecuador, including (but not limited to) Canada, Brazil and Argentina.” The Republic of Ecuador subsequently filed in the District Court of the Hague a request to set aside the Tribunal’s Interim Awards and the First Partial Award (described below), and on January 20, 2016, the District Court denied the Republic's request. On April 13, 2016, the Republic of Ecuador appealed the decision. On July 18, 2017, the Appeals Court of the Hague denied the Republic's appeal. On October 18, 2017, the Republic appealed the decision of the Appeals Court of the Hague to the Supreme Court of the Netherlands.

The Tribunal has divided the merits phase of the proceeding into three phases. On September 17, 2013, the Tribunal issued its First Partial Award from Phase One, finding that the settlement agreements between the Republic of Ecuador and Texpet applied to Texpet and Chevron, released Texpet and Chevron from claims based on "collective" or "diffuse" rights arising from Texpet's operations in the former concession area and precluded third parties from asserting collective/diffuse rights environmental claims relating to Texpet's operations in the

19

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

former concession area but did not preclude individual claims for personal harm. The Tribunal held a hearing on April 29-30, 2014, to address remaining issues relating to Phase One, and on March 12, 2015, it issued a nonbinding decision that the Lago Agrio plaintiffs' complaint, on its face, includes claims not barred by the settlement agreement between the Republic of Ecuador and Texpet. In the same decision, the Tribunal deferred to Phase Two remaining issues from Phase One, including whether the Republic of Ecuador breached the 1995 settlement agreement and the remedies that are available to Chevron and Texpet as a result of that breach. Phase Two issues were addressed at a hearing held in April and May 2015.

On August 30, 2018, the Tribunal issued its Phase Two award in favor of Chevron and Texpet. The Tribunal unanimously held that the Ecuadorian judgment was procured through fraud, bribery and corruption and was based on claims that the Republic of Ecuador had settled and released in the mid-1990s, concluding that the Ecuadorian judgment “violates international public policy” and “should not be recognized or enforced by the courts of other States.” Specifically, the Tribunal found that (i) the Republic of Ecuador breached its obligations under the 1995 and 1998 settlement agreements releasing Texpet and its affiliates from public environmental claims (the same claims on which the Ecuadorian judgment was exclusively based) and (ii) the Republic of Ecuador committed a denial of justice under customary international law and under the fair and equitable treatment provision of the BIT due to the fraud and corruption in the Lago Agrio litigation. Among other things, the Tribunal ordered the Republic of Ecuador to: (a) take immediate steps to remove the status of enforceability from the Ecuadorian judgment; (b) promptly advise in writing any State where the Lago Agrio Plaintiffs may be seeking the enforcement or recognition of the Ecuadorian judgment of the Tribunal’s declarations, orders and awards; (c) take measures to “wipe out all the consequences” of Ecuador's "internationally wrongful acts in regard to the Ecuadorian judgment;" and (d) compensate Chevron for any injuries resulting from the Ecuadorian judgment. The Tribunal has not set a date for Phase Three, the third and final phase of the arbitration, at which damages for Chevron's injuries will be determined.

Company's RICO Action Through a series of U.S. court proceedings initiated by Chevron to obtain discovery relating to the Lago Agrio litigation and the BIT arbitration, Chevron obtained evidence that it believes shows a pattern of fraud, collusion, corruption, and other misconduct on the part of several lawyers, consultants and others acting for the Lago Agrio plaintiffs. In February 2011, Chevron filed a civil lawsuit in the Federal District Court for the Southern District of New York against the Lago Agrio plaintiffs and several of their lawyers, consultants and supporters, alleging violations of the Racketeer Influenced and Corrupt Organizations Act and other state laws. Through the civil lawsuit, Chevron sought relief that included a declaration that any judgment against Chevron in the Lago Agrio litigation is the result of fraud and other unlawful conduct and is therefore unenforceable. The trial commenced on October 15, 2013 and concluded on November 22, 2013. On March 4, 2014, the Federal District Court entered a judgment in favor of Chevron, prohibiting the defendants from seeking to enforce the Lago Agrio judgment in the United States and further prohibiting them from profiting from their illegal acts. The defendants appealed the Federal District Court's decision, and, on April 20, 2015, a panel of the U.S. Court of Appeals for the Second Circuit heard oral arguments. On August 8, 2016, the Second Circuit issued a unanimous opinion affirming in full the judgment of the Federal District Court in favor of Chevron. On October 27, 2016, the Second Circuit denied the defendants' petitions for en banc rehearing of the opinion on their appeal. On March 27, 2017, two of the defendants filed a petition for a Writ of Certiorari to the United States Supreme Court. On June 19, 2017, the United States Supreme Court denied the defendants' petition for a Writ of Certiorari.

Management's Assessment The ultimate outcome of the foregoing matters, including any financial effect on Chevron, remains uncertain. Management does not believe an estimate of a reasonably possible loss (or a range of loss) can be made in this case. Due to the defects associated with the Ecuadorian judgment, the 2008 engineer’s report on alleged damages and the September 2010 plaintiffs’ submission on alleged damages, management does not believe these documents have any utility in calculating a reasonably possible loss (or a range of loss). Moreover, the highly uncertain legal environment surrounding the case provides no basis for management to estimate a reasonably possible loss (or a range of loss).

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

Note 14. Other Contingencies and Commitments

Income Taxes The company calculates its income tax expense and liabilities quarterly. These liabilities generally are subject to audit and are not finalized with the individual taxing authorities until several years after the end of the annual period for which income taxes have been calculated. Refer to Note 12 on page 16 for a discussion of the periods for which tax returns have been audited for the company’s major tax jurisdictions.

Settlement of open tax years, as well as other tax issues in countries where the company conducts its businesses, are not expected to have a material effect on the consolidated financial position or liquidity of the company and, in the opinion of management, adequate provision has been made for income taxes for all years under examination or subject to future examination.

Guarantees The company and its subsidiaries have certain contingent liabilities with respect to guarantees, direct or indirect, of debt of affiliated companies or third parties. Under the terms of the guarantee arrangements, the company would generally be required to perform should the affiliated company or third party fail to fulfill its obligations under the arrangements. In some cases, the guarantee arrangements may have recourse provisions that would enable the company to recover any payments made under the terms of the guarantees from assets provided as collateral.

Indemnifications In the acquisition of Unocal, the company assumed certain indemnities relating to contingent environmental liabilities associated with assets that were sold in 1997. The acquirer of those assets shared in certain environmental remediation costs up to a maximum obligation of $200 million, which had been reached at December 31, 2009. Under the indemnification agreement, after reaching the $200 million obligation, Chevron is solely responsible until April 2022, when the indemnification expires. The environmental conditions or events that are subject to these indemnities must have arisen prior to the sale of the assets in 1997.

Although the company has provided for known obligations under this indemnity that are probable and reasonably estimable, the amount of additional future costs may be material to results of operations in the period in which they are recognized. The company does not expect these costs will have a material effect on its consolidated financial position or liquidity.

Off-Balance-Sheet Obligations The company and its subsidiaries have certain contingent liabilities with respect to long-term unconditional purchase obligations and commitments, including throughput and take-or-pay agreements, some of which relate to suppliers’ financing arrangements. The agreements typically provide goods and services, such as pipeline and storage capacity, drill ships, utilities, and petroleum products, to be used or sold in the ordinary course of the company’s business.

Environmental The company is subject to loss contingencies pursuant to laws, regulations, private claims and legal proceedings related to environmental matters that are subject to legal settlements or that in the future may require the company to take action to correct or ameliorate the effects on the environment of prior release of chemicals or petroleum substances, including MTBE, by the company or other parties. Such contingencies may exist for various sites, including, but not limited to, federal Superfund sites and analogous sites under state laws, refineries, crude oil fields, service stations, terminals, land development areas, and mining activities, whether operating, closed or divested. These future costs are not fully determinable due to factors such as the unknown magnitude of possible contamination, the unknown timing and extent of the corrective actions that may be required, the determination of the company’s liability in proportion to other responsible parties, and the extent to which such costs are recoverable from third parties.

Although the company has provided for known environmental obligations that are probable and reasonably estimable, the amount of additional future costs may be material to results of operations in the period in which they are recognized. The company does not expect these costs will have a material effect on its consolidated financial position or liquidity. Also, the company does not believe its obligations to make such expenditures have had, or will have, any significant impact on the company’s competitive position relative to other U.S. or international petroleum or chemical companies.

Other Contingencies Governmental entities in California and other jurisdictions have filed legal proceedings against fossil fuel producing companies, including Chevron, purporting to seek legal and equitable relief to address alleged impacts of climate change. Further such proceedings are likely to be filed by other parties. The

21

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

unprecedented legal theories set forth in these proceedings entail the possibility of damages liability and injunctions against the production of all fossil fuels that, while we believe remote, could have a material adverse effect on the Company’s results of operations and financial condition. Management believes that these proceedings are legally and factually meritless and detract from constructive efforts to address the important policy issues presented by climate change, and will vigorously defend against such proceedings.

Chevron receives claims from and submits claims to customers; trading partners; joint venture partners; U.S. federal, state and local regulatory bodies; governments; contractors; insurers; suppliers; and individuals. The amounts of these claims, individually and in the aggregate, may be significant and take lengthy periods to resolve, and may result in gains or losses in future periods.

The company and its affiliates also continue to review and analyze their operations and may close, abandon, sell, exchange, acquire or restructure assets to achieve operational or strategic benefits and to improve competitiveness and profitability. These activities, individually or together, may result in significant gains or losses in future periods.

Note 15. Fair Value Measurements

The three levels of the fair value hierarchy of inputs the company uses to measure the fair value of an asset or liability are described as follows:

Level 1: Quoted prices (unadjusted) in active markets for identical assets and liabilities. For the company, Level 1 inputs include exchange-traded futures contracts for which the parties are willing to transact at the exchange-quoted price and marketable securities that are actively traded.

Level 2: Inputs other than Level 1 that are observable, either directly or indirectly. For the company, Level 2 inputs include quoted prices for similar assets or liabilities, prices obtained through third-party broker quotes and prices that can be corroborated with other observable inputs for substantially the complete term of a contract.

Level 3: Unobservable inputs. The company does not use Level 3 inputs for any of its recurring fair value measurements. Level 3 inputs may be required for the determination of fair value associated with certain nonrecurring measurements of nonfinancial assets and liabilities.

The fair value hierarchy for assets and liabilities measured at fair value on a recurring basis at September 30, 2018, and December 31, 2017, is as follows:

Assets and Liabilities Measured at Fair Value on a Recurring Basis

(Millions of dollars)

	At September 30, 2018								At December 31, 2017
	Total		Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3
Marketable Securities	$	60	$	60	$	—	$	—	$	9	$	9	$	—	$	—
Derivatives	16		1		15		—		22		—		22		—
Total Assets at Fair Value	$	76	$	61	$	15	$	—	$	31	$	9	$	22	$	—
Derivatives	84		52		32		—		124		78		46		—
Total Liabilities at Fair Value	$	84	$	52	$	32	$	—	$	124	$	78	$	46	$	—

Marketable Securities The company calculates fair value for its marketable securities based on quoted market prices for identical assets. The fair values reflect the cash that would have been received if the instruments were sold at September 30, 2018.

Derivatives The company records its derivative instruments — other than any commodity derivative contracts that are designated as normal purchase and normal sale — on the Consolidated Balance Sheet at fair value, with the offsetting amount to the Consolidated Statement of Income. Derivatives classified as Level 1 include futures, swaps and options contracts traded in active markets such as the New York Mercantile Exchange. Derivatives classified as Level 2 include swaps, options and forward contracts principally with financial institutions and other oil and gas companies, the fair values of which are obtained from third-party broker quotes, industry pricing services and exchanges. The company obtains multiple sources of pricing information for the Level 2 instruments.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

Since this pricing information is generated from observable market data, it has historically been very consistent. The company does not materially adjust this information.

Assets carried at fair value at September 30, 2018, and December 31, 2017, are as follows:

Cash and Cash Equivalents The company holds cash equivalents in U.S. and non-U.S. portfolios. The instruments classified as cash equivalents are primarily bank time deposits with maturities of 90 days or less, and money market funds. “Cash and cash equivalents” had carrying/fair values of $9.7 billion and $4.8 billion at September 30, 2018, and December 31, 2017, respectively. The fair values of cash and cash equivalents are classified as Level 1 and reflect the cash that would have been received if the instruments were settled at September 30, 2018.

Restricted Cash had a carrying/fair value of $1.1 billion and $1.1 billion at September 30, 2018, and December 31, 2017, respectively. At September 30, 2018, restricted cash is classified as Level 1 and includes restricted funds related to certain upstream abandonment activities and a financing program, which are reported in "Prepaid expenses and other current assets" and “Deferred charges and other assets” on the Consolidated Balance Sheet.

Long-Term Debt had a net carrying value, excluding amounts reclassified from short-term, of $19.9 billion and $23.5 billion at September 30, 2018, and December 31, 2017, respectively. The fair value of long-term debt at September 30, 2018, and December 31, 2017 was $19.8 billion and $23.9 billion, respectively. Long-term debt primarily includes corporate issued bonds. The fair value of corporate bonds classified as Level 1 is $19.0 billion. The fair value of other long-term debt classified as Level 2 is $0.8 billion.

The carrying values of other short-term financial assets and liabilities on the Consolidated Balance Sheet approximate their fair values. Fair value remeasurements of other financial instruments at September 30, 2018, and December 31, 2017, were not material.

The fair value hierarchy for assets and liabilities measured at fair value on a nonrecurring basis at September 30, 2018, is as follows:

Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis

(Millions of dollars)

	At September 30, 2018
									Before-Tax Loss
	Total		Level 1		Level 2		Level 3		Three Months Ended		Nine Months Ended
Properties, plant and equipment, net (held and used)	$	—	$	—	$	—	$	—	$	—	$	—
Properties, plant and equipment, net (held for sale)	212		—		—		212		290		586
Investments and advances	56		—		—		56		43		44
Total Assets at Fair Value	$	268	$	—	$	—	$	268	$	333	$	630

Properties, plant and equipment The company did not have any individually material impairments of long-lived assets measured at fair value on a nonrecurring basis to report in third quarter2018.

Investments and advances The company did not have any material impairments of investments and advances measured at fair value on a nonrecurring basis to report in third quarter2018.

Note 16. Financial and Derivative Instruments

The company’s derivative instruments principally include crude oil, natural gas and refined product futures, swaps, options, and forward contracts. None of the company’s derivative instruments are designated as hedging instruments, although certain of the company’s affiliates make such a designation. The company’s derivatives are not material to the company’s consolidated financial position, results of operations or liquidity. The company believes it has no material market or credit risks to its operations, financial position or liquidity as a result of its commodities and other derivatives activities.

The company uses derivative commodity instruments traded on the New York Mercantile Exchange and on electronic platforms of the Inter-Continental Exchange and Chicago Mercantile Exchange. In addition, the company enters into swap contracts and option contracts principally with major financial institutions and other

23

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

oil and gas companies in the “over-the-counter” markets, which are governed by International Swaps and Derivatives Association agreements and other master netting arrangements.

Derivative instruments measured at fair value at September 30, 2018, and December 31, 2017, and their classification on the Consolidated Balance Sheet and Consolidated Statement of Income are as follows:

Consolidated Balance Sheet: Fair Value of Derivatives Not Designated as Hedging Instruments

(Millions of dollars)

Type of Contract	Balance Sheet Classification	At September 30 2018		At December 31 2017
Commodity	Accounts and notes receivable, net	$	15	$	22
Commodity	Long-term receivables, net	1		—
Total Assets at Fair Value		$	16	$	22
Commodity	Accounts payable	$	76	$	122
Commodity	Deferred credits and other noncurrent obligations	8		2
Total Liabilities at Fair Value		$	84	$	124

Consolidated Statement of Income: The Effect of Derivatives Not Designated as Hedging Instruments

(Millions of dollars)

		Gain / (Loss) Three Months Ended September 30						Gain / (Loss) Nine Months Ended September 30
Type of Contract	Statement of Income Classification	2018			2017			2018			2017
Commodity	Sales and other operating revenues	$	(80	)	$	(196	)	$	(257	)	$	82
Commodity	Purchased crude oil and products	(10		)	(7		)	(36		)	3
Commodity	Other income	1			1			1			(2		)
		$	(89	)	$	(202	)	$	(292	)	$	83

The table below represents gross and net derivative assets and liabilities subject to netting agreements on the Consolidated Balance Sheet at September 30, 2018, and December 31, 2017.

Consolidated Balance Sheet: The Effect of Netting Derivative Assets and Liabilities

(Millions of dollars)

	Gross Amount Recognized		Gross Amounts Offset		Net Amounts Presented		Gross Amounts Not Offset		Net Amount
At September 30, 2018
Derivative Assets	$	3,399	$	3,383	$	16	$	9	$	7
Derivative Liabilities	$	3,467	$	3,383	$	84	$	9	$	75
At December 31, 2017
Derivative Assets	$	1,169	$	1,147	$	22	$	—	$	22
Derivative Liabilities	$	1,271	$	1,147	$	124	$	—	$	124

Derivative assets and liabilities are classified on the Consolidated Balance Sheet as accounts and notes receivable, long-term receivables, accounts payable, and deferred credits and other noncurrent obligations. Amounts not offset on the Consolidated Balance Sheet represent positions that do not meet all the conditions for "a right of offset."

Note 17. Revenue

On January 1, 2018, Chevron adopted ASU 2014-09, Revenue from Contracts with Customers (ASC 606), and its related amendments using the modified retrospective transition method, which did not require the restatement of prior periods. The adoption did not result in a material change in the company’s accounting or have a material effect on the company’s financial position, including the measurement of revenue, the timing of revenue recognition and the recognition of contract assets, liabilities and related costs.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

The most significant change is the presentation of excise, value-added and similar taxes collected on behalf of third parties, which are no longer presented within “Sales and other operating revenue” on the Consolidated Statement of Income starting in 2018. These taxes, which totaled $5.9 billion in the nine months ended September 30, 2018, are now netted in “Taxes other than on income” in the Consolidated Statement of Income. This change to presentation had no impact on earnings. In the nine months ended September 30, 2017, these taxes totaled $5.3 billion.

Under the new standard, the company accounts for commodity delivery orders as separate performance obligations. Revenue is recognized when the performance obligation is satisfied, which continues to typically occur at the point in time when control of the product transfers to the customer. Payment is generally due within 30 days from delivery. The company has elected to account for delivery transportation as a fulfillment cost, not a separate performance obligation. These costs continue to be recognized as an operating expense in the period when revenue for the related commodity is recognized.

Revenue is measured as the amount the company expects to receive in exchange for transferring commodities to the customer. The company’s commodity sales are typically based on prevailing market-based prices and may include discounts and allowances. Until market prices become known under terms of the company’s contracts, the transaction price included in revenue is based on the company’s estimate of the most likely outcome.

Discounts and allowances are estimated using a combination of historical and recent data trends. When deliveries contain multiple products, an observable standalone selling price is generally used to measure revenue for each product. The company includes estimates in the transaction price only to the extent that a significant reversal of revenue is not probable in subsequent periods.

The company applied the optional exemption to not report any unfulfilled performance obligations related to contracts that have terms of less than one year. The amount of future revenue for unfulfilled performance obligations under long-term contracts with fixed components was insignificant for the nine months ended September 30, 2018.

Revenue from contracts with customers is presented in “Sales and other operating revenue” along with some activity that is accounted for outside the scope of ASC 606, which is not material to this line, on the Consolidated Statement of Income. Purchases and sales of inventory with the same counterparty that are entered into in contemplation of one another (including buy/sell arrangements) are combined and recorded on a net basis and reported in “purchased crude oil and products” on the Consolidated Statement of Income. Refer to Note 7 beginning on page 11 for additional information on the company’s segmentation of revenue.

Receivables related to revenue from contracts with customers are included in “Accounts and notes receivable, net” on the Consolidated Balance Sheet, net of the allowance for doubtful accounts. The net balance of these receivables was $9.8 billion and $11.9 billion at January 1, 2018 and September 30, 2018, respectively. Other items included in “Accounts and notes receivable, net” represent amounts due from partners for their share of joint venture operating and project costs and amounts due from others, primarily related to derivatives, leases, buy/sell arrangements and product exchanges, which are accounted for outside the scope of ASC 606, Revenue from Contracts with Customers.

Contract assets and related costs are reflected in “Prepaid expenses and other current assets” and contract liabilities are reflected in “Accrued liabilities” and “Deferred credits and other noncurrent obligations” on the Consolidated Balance Sheet. Amounts for these items are not material to the company’s financial position.

Note 18. Accounting for Suspended Exploratory Wells

The capitalized cost of suspended wells at September 30, 2018, was $3.6 billion, a net decrease of $124 million from year-end 2017. The decrease was primarily due to well write-offs, partially offset by drilling activities. During the nine months ended September 30, 2018, $313 million of exploratory well costs previously capitalized for greater than one year at December 31, 2017, were charged to expense.

25

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

Third Quarter 2018 Compared with Third Quarter 2017

and Nine Months 2018 Compared with Nine Months 2017

Key Financial Results

Earnings by Business Segment

	Three Months Ended September 30						Nine Months Ended September 30
	2018			2017			2018			2017
	(Millions of dollars)
Upstream
United States	$	828		$	(26	)	$	2,314		$	(48	)
International	2,551			515			7,712			2,907
Total Upstream	3,379			489			10,026			2,859
Downstream
United States	748			640			1,847			1,743
International	625			1,174			1,092			2,192
Total Downstream	1,373			1,814			2,939			3,935
Total Segment Earnings	4,752			2,303			12,965			6,794
All Other	(705		)	(351		)	(1,871		)	(710		)
Net Income Attributable to Chevron Corporation (1) (2)	$	4,047		$	1,952		$	11,094		$	6,084
__________________________________________
(1) Includes foreign currency effects	$	(51	)	$	(112	)	$	343		$	(351	)
(2) Income net of tax; also referred to as “earnings” in the discussions that follow.

Net income attributable to Chevron Corporation for third quarter2018 was $4.05 billion ($2.11 per share — diluted), compared with earnings of $1.95 billion ($1.03 per share — diluted) in the corresponding 2017 period. Net income attributable to Chevron Corporation for the first nine months of 2018 was $11.09 billion ($5.79 per share — diluted), compared with $6.08 billion ($3.21 per share — diluted) in the first nine months of 2017.

Upstream earnings in third quarter2018 were $3.38 billion compared with $489 million a year earlier. Earnings for the first nine months of 2018 were $10.03 billion compared with $2.86 billion a year earlier. In both periods, the increase was due to higher crude oil realizations and higher sales volumes.

Downstream earnings in third quarter2018 were $1.37 billion compared with $1.81 billion in the corresponding 2017 period. The decrease was primarily due to lower gains on asset sales. Earnings for the first nine months of 2018 were $2.94 billion compared with $3.94 billion in the corresponding 2017 period. The decrease was due to lower margins on refined product sales and lower gains on asset sales, partially offset by higher equity earnings from the 50 percent-owned Chevron Phillips Chemical Company LLC and lower tax expenses.

Refer to pages 30 through 32 for additional discussion of results by business segment and “All Other” activities for third quarter and first nine months of 2018 versus the same periods in 2017.

Business Environment and Outlook

Chevron Corporation* is a global energy company with substantial business activities in the following countries: Angola, Argentina, Australia, Azerbaijan, Bangladesh, Brazil, Canada, China, Colombia, Denmark, Indonesia, Kazakhstan, Myanmar, Nigeria, the Partitioned Zone between Saudi Arabia and Kuwait, Philippines, Republic of Congo, Singapore, South Korea, Thailand, the United Kingdom, the United States, and Venezuela.

Earnings of the company depend mostly on the profitability of its upstream business segment. The most significant factor affecting the results of operations for the upstream segment is the price of crude oil, which is determined in global markets outside of the company’s control. In the company's downstream business, crude oil is the largest cost component of refined products. It is the company's objective to deliver competitive results and

_____________________

^* Incorporated in Delaware in 1926 as Standard Oil Company of California, the company adopted the name Chevron Corporation in 1984 and ChevronTexaco Corporation in 2001. In 2005, ChevronTexaco Corporation changed its name to Chevron Corporation. As used in this report, the term “Chevron” and such terms as “the company,” “the corporation,” “our,” “we,” “us” and "its" may refer to Chevron Corporation, one or more of its consolidated subsidiaries, or all of them taken as a whole, but unless stated otherwise they do not include “affiliates” of Chevron — i.e., those companies generally owned 50 percent or less. All of these terms are used for convenience only and are not intended as a precise description of any of the separate companies, each of which manages its own affairs.

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stockholder value in any business environment. Periods of sustained lower prices could result in the impairment or write-off of specific assets in future periods and cause the company to adjust operating expenses and capital and exploratory expenditures, along with other measures intended to improve financial performance.

The effective tax rate for the company can change substantially during periods of significant earnings volatility. This is due to the mix effects that are impacted both by the absolute level of earnings or losses and whether they arise in higher or lower tax rate jurisdictions. As a result, a decline or increase in the effective tax rate in one period may not be indicative of expected results in future periods. Note 12 provides the company’s effective income tax rate for the third quarters of 2018 and 2017.

Refer to the "Cautionary Statement Relevant to Forward-Looking Information" on page 2 of this report and to "Risk Factors" on pages 19 through 22 of the company’s 2017 Annual Report on Form 10-K for a discussion of some of the inherent risks that could materially impact the company's results of operations or financial condition.

The company continually evaluates opportunities to dispose of assets that are not expected to provide sufficient long-term value or to acquire assets or operations complementary to its asset base to help augment the company’s financial performance and value growth. The company's asset sale program for 2018 through 2020 is targeting before-tax proceeds of $5-10 billion. Asset dispositions and restructurings may also occur in future periods and could result in significant gains or losses.

The company closely monitors developments in the financial and credit markets, the level of worldwide economic activity, and the implications for the company of movements in prices for crude oil and natural gas. Management takes these developments into account in the conduct of daily operations and for business planning.

Management's commentary related to earnings trends for the company’s major business areas is as follows:

Upstream Earnings for the upstream segment are closely aligned with industry prices for crude oil and natural gas. Crude oil and natural gas prices are subject to external factors over which the company has no control, including product demand connected with global economic conditions, industry production and inventory levels, technology advancements, production quotas or other actions imposed by the Organization of Petroleum Exporting Countries (OPEC) or other producers, actions of regulators, weather-related damage and disruptions, competing fuel prices, and regional supply interruptions or fears thereof that may be caused by military conflicts, civil unrest or political uncertainty. Any of these factors could also inhibit the company’s production capacity in an affected region. The company closely monitors developments in the countries in which it operates and holds investments, and seeks to manage risks in operating its facilities and businesses. The longer-term trend in earnings for the upstream segment is also a function of other factors, including the company’s ability to find or acquire and efficiently produce crude oil and natural gas, changes in fiscal terms of contracts, and changes in tax and other applicable laws and regulations.

The company continues to actively manage its schedule of work, contracting, procurement and supply-chain activities to effectively manage costs. However, price levels for capital and exploratory costs and operating expenses associated with the production of crude oil and natural gas can be subject to external factors beyond the company’s control including, among other things, the general level of inflation, tariffs or other taxes imposed on goods or services, commodity prices and prices charged by the industry’s material and service providers, which can be affected by the volatility of the industry’s own supply-and-demand conditions for such materials and services. Cost pressures continue in the North America unconventional market, particularly the Permian Basin, with increases in commodity prices and higher levels of activity and investment.  International and offshore markets have begun to see indications of increased cost pressure.

Capital and exploratory expenditures and operating expenses could also be affected by damage to production facilities caused by severe weather or civil unrest, delays in construction, or other factors.

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The chart above shows the trend in benchmark prices for Brent crude oil, West Texas Intermediate (WTI) crude oil, and U.S. Henry Hub natural gas. The Brent price averaged $54 per barrel for the full-year 2017. During the third quarter2018, Brent averaged $75 per barrel and ended October at about $75. The majority of the company’s equity crude production is priced based on the Brent benchmark. Brent markets traded in a $70 to $80 per barrel range throughout most of the third quarter 2018 due to strong demand, sanctions imposed on Iran by the U.S. government, and heightened geopolitical uncertainty impacting key oil producing economies.

The WTI price averaged $51 per barrel for the full-year 2017. During the third quarter2018, WTI averaged $70 per barrel and ended October at about $65. WTI is currently trading at a discount to Brent due to infrastructure constraints in getting inland crude to the coast.  The WTI differential saw some reprieve from July through mid-August due to an unplanned decline in Canadian production, but discounts returned to earlier levels by September when that production was fully restored.

A differential in crude oil prices exists between high-gravity, low-sulfur crudes and low-gravity, high-sulfur crudes. The amount of the differential is associated with the relative supply/demand balances for each crude type, which in turn is influenced by refined product demand. In third quarter 2018, differentials generally narrowed outside of North America due to lower exports from key heavy crude producers, low fuel oil inventories and ample low-sulfur (sweet) crude supply. In North America, differentials grew modestly as a result of infrastructure constraints in many production locations, which restricted supplies to the market.

Chevron has interests in the production of heavy crude oil in California, Indonesia, the Partitioned Zone between Saudi Arabia and Kuwait, Venezuela and in certain fields in Angola, China and the United Kingdom sector of the North Sea. (See page 36 for the company’s average U.S. and international crude oil sales prices.)

In contrast to price movements in the global market for crude oil, price changes for natural gas are more closely aligned with supply-and-demand conditions in regional markets. Fluctuations in the price of natural gas in the United States are closely associated with customer demand relative to the volumes produced and stored in North America. In the United States, prices at Henry Hub averaged $2.91 per thousand cubic feet (MCF) for the first nine months of 2018, compared with $3.00 during the first nine months of 2017. At the end of October 2018, the Henry Hub spot price was $3.26 per MCF.

Outside the United States, price changes for natural gas depend on a wide range of supply, demand and regulatory circumstances. Chevron sells natural gas into the domestic pipeline market in most locations. In some locations, Chevron has invested in long-term projects to produce and liquefy natural gas for transport by tanker to other markets. The company's long-term contract prices for liquefied natural gas (LNG) are typically linked to crude oil prices. Most of the equity LNG offtake from the operated Australian LNG projects is committed under binding long-term contracts, with the remainder to be sold in the Asian spot LNG market.  The Asian spot market reflects the supply and demand for LNG in the Pacific Basin and is not directly linked to crude oil prices. International natural gas sales prices averaged $6.10 per MCF during the first nine months of 2018, compared with $4.50 per MCF in the same period last year. (See page 36 for the company’s average natural gas sales prices for the U.S. and international regions.)

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The company’s worldwide net oil-equivalent production in the first nine months of 2018 averaged 2.878 million barrels per day. About one-sixth of the company’s net oil-equivalent production in the first nine months of 2018 occurred in the OPEC-member countries of Angola, Nigeria, Republic of Congo and Venezuela. OPEC quotas had no effect on the company’s net crude oil production for the third quarter of 2018 or 2017.

The company expects net oil-equivalent production for the full-year 2018 to be at the top of the original guidance range of a 4 to 7 percent increase compared to 2017, excluding asset sales. This estimate is subject to many factors and uncertainties, including quotas or other actions that may be imposed by OPEC; price effects on entitlement volumes; changes in fiscal terms or restrictions on the scope of company operations; delays in construction, start-up or ramp-up of projects; fluctuations in demand for natural gas in various markets; weather conditions that may shut-in production; civil unrest; changing geopolitics; delays in completion of maintenance turnarounds; greater-than-expected declines in production from mature fields; or other disruptions to operations. The outlook for future production levels is also affected by the size and number of economic investment opportunities and the time lag between initial exploration and the beginning of production. The company has increased its investment emphasis on short-cycle projects.

In the Partitioned Zone between Saudi Arabia and Kuwait, production was shut-in beginning in May 2015 as a result of difficulties in securing work and equipment permits. Net oil-equivalent production in the Partitioned Zone in 2014 was 81,000 barrels per day. As of early November 2018, production remained shut-in, and the exact timing of a production restart is uncertain and dependent on dispute resolution between Saudi Arabia and Kuwait. The financial effects from the loss of Partitioned Zone production have not been significant.

In Venezuela, there was a significant currency devaluation in the third quarter 2018. Chevron has interests in Venezuelan crude oil production assets operated by independent equity affiliates. The operating environment in Venezuela has been deteriorating for some time. Future events could result in the environment in Venezuela becoming more challenged, which could lead to increased business disruption and volatility in the associated financial results.

Refer to the “Results of Operations” section on pages30 and 31 for additional discussion of the company’s upstream business.

Downstream Earnings for the downstream segment are closely tied to margins on the refining, manufacturing and marketing of products that include gasoline, diesel, jet fuel, lubricants, fuel oil, fuel and lubricant additives, and petrochemicals. Industry margins are sometimes volatile and can be affected by the global and regional supply-and-demand balance for refined products and petrochemicals, and by changes in the price of crude oil, other refinery and petrochemical feedstocks, and natural gas. Industry margins can also be influenced by inventory levels, geopolitical events, costs of materials and services, refinery or chemical plant capacity utilization, maintenance programs, and disruptions at refineries or chemical plants resulting from unplanned outages due to severe weather, fires or other operational events.

Other factors affecting profitability for downstream operations include the reliability and efficiency of the company’s refining, marketing and petrochemical assets, the effectiveness of its crude oil and product supply functions, and the volatility of tanker-charter rates for the company’s shipping operations, which are driven by the industry’s demand for crude oil and product tankers. Other factors beyond the company’s control include the general level of inflation and energy costs to operate the company’s refining, marketing and petrochemical assets, and changes in tax laws and regulations.

The company’s most significant marketing areas are the West Coast and Gulf Coast of the United States and Asia. Chevron operates or has significant ownership interests in refineries in each of these areas.

Refer to the “Results of Operations” section on pages31 and 32 for additional discussion of the company’s downstream operations.

All Other consists of worldwide cash management and debt financing activities, corporate administrative functions, insurance operations, real estate activities and technology companies.

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Operating Developments

Noteworthy operating developments in recent months included the following:

• South Africa and Botswana — Completed the sale of refining, marketing and lubricant assets.

The company purchased $750 million of its common stock in third quarter 2018 under its share repurchase program.

Results of Operations

Business Segments The following section presents the results of operations and variances on an after-tax basis for the company’s business segments — Upstream and Downstream — as well as for “All Other.” (Refer to Note 7, beginning on page 11, for a discussion of the company’s “reportable segments,” as defined under the accounting standards for segment reporting.)

Upstream

	Three Months Ended September 30					Nine Months Ended September 30
	2018		2017			2018		2017
	(Millions of dollars)
U.S. Upstream Earnings	$	828	$	(26	)	$	2,314	$	(48	)

U.S. upstream operations earned $828 million in third quarter2018, compared with a loss of $26 million from a year earlier. The improvement reflected higher crude oil realizations and production of $950 and $350 million respectively, partially offset by higher depreciation and exploration expenses of $290 and $280 million respectively, primarily reflecting a $550 million write-off of the Tigris Project in the Gulf of Mexico.

U.S. upstream earned $2.31 billion for the first nine months of 2018, compared with a loss of $48 million from a year earlier. The improvement in earnings was primarily due to higher crude oil realizations of $2.13 billion, higher crude oil production of $630 million, partially offset by higher exploration expense of $340 million.

The company's average realization per barrel for U.S. crude oil and natural gas liquids was $62 in third quarter2018, up from $42 a year earlier. The average nine-month realization per barrel for U.S. crude oil and natural gas liquids was $59 in 2018, compared to $43 a year earlier. The average natural gas realization in third quarter2018 was $1.80 per thousand cubic feet, unchanged from third quarter 2017. The average nine-month natural gas realization was $1.81 per thousand cubic feet in 2018 and $2.17 in 2017.

Net oil-equivalent production of 831,000 barrels per day in third quarter2018 was up 150,000 barrels per day, or 22 percent, from a year earlier. Production increases from shale and tight properties in the Permian Basin in Texas and New Mexico and base business in the Gulf of Mexico were partially offset by the impact of asset sales of 19,000 barrels per day. Net oil-equivalent production of 768,000 barrels per day in the first nine months of 2018 was up 84,000 barrels per day, or 12 percent, from a year earlier. Production increases from shale and tight properties in the Permian Basin in Texas and New Mexico and base business in the Gulf of Mexico were partially offset by the effect of asset sales of 41,000 barrels per day.

The net liquids component of oil-equivalent production of 654,000 barrels per day in third quarter2018 was up 25 percent from the corresponding 2017 period. The net liquids component of oil-equivalent production of 599,000 barrels per day in the 2018nine-month period was up 15 percent from the 2017 period. Net natural gas production was 1,061 million cubic feet per day in third quarter2018, an increase of 14 percent from the 2017 comparative period. Net natural gas production was 1,011 million cubic feet per day in the first nine months of 2018, an increase of 2 percent from the 2017 period.

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	Three Months Ended September 30						Nine Months Ended September 30
	2018			2017			2018		2017
	(Millions of dollars)
International Upstream Earnings*	$	2,551		$	515		$	7,712	$	2,907
_______________________
*  Includes foreign currency effects	$	(42	)	$	(164	)	$	295	$	(441	)

International upstream operations earned $2.55 billion in third quarter2018, compared with $515 million a year ago. The increase in earnings was mainly due to higher crude oil and natural gas realizations of $1.25 billion and $290 million, respectively, and higher natural gas sales volumes of $580 million. Foreign currency effects had a favorable impact on earnings of $122 million between periods. The 2018 quarter included charges totaling $380 million for an asset impairment and a contractual settlement.

Earnings for the first nine months of 2018 were $7.71 billion, compared with $2.91 billion from a year earlier. The increase in earnings was primarily due to higher crude oil and natural gas realizations of $3.31 billion and $790 million, respectively, higher natural gas sales volumes of $1.27 billion, partially offset by lower gains on asset sales of $580 million, higher operating expenses of $410 million and lower crude oil sales volumes of $360 million. Foreign currency effects had a favorable impact on earnings of $736 million between periods.

The average realization per barrel of crude oil and natural gas liquids in third quarter2018 was $69, compared with $48 a year earlier. The average realization per barrel of crude oil and natural gas liquids in the first nine months of 2018 was $66, compared with $47 a year earlier. The average natural gas realization in third quarter2018 was $6.73 per thousand cubic feet, compared with $4.76 in the 2017 period. The average natural gas realization in the first nine months of 2018 was $6.10 per thousand cubic feet, compared with $4.50 in the 2017 period.

International net oil-equivalent production of 2.13 million barrels per day in third quarter2018 was up 89,000 barrels per day from the corresponding 2017 period. Production increases from major capital projects, primarily Wheatstone and Gorgon in Australia, were partially offset by maintenance-related downtime, production entitlement effects and normal field declines.

International net oil-equivalent production of 2.11 million barrels per day in the first nine months of 2018 was up 70,000 barrels per day, or 3 percent, from a year earlier. Production increases from major capital projects, primarily Wheatstone and Gorgon in Australia, were partially offset by production entitlement effects, normal field declines, the impact of asset sales of 19,000 barrels per day and maintenance-related downtime.

The net liquids component of oil-equivalent production of 1.13 million barrels per day in third quarter2018 decreased 5 percent from the 2017 period. The net liquids component of oil-equivalent production of 1.16 million barrels per day in the first nine months of 2018 decreased 4 percent from the corresponding 2017 period. Net natural gas production of 5.95 billion cubic feet per day in third quarter2018 increased 18 percent from the 2017 period. Net natural gas production of 5.73 billion cubic feet per day in the first nine months of 2018 increased 15 percent from the 2017 period.

Downstream

	Three Months Ended September 30				Nine Months Ended September 30
	2018		2017		2018		2017
	(Millions of dollars)
U.S. Downstream Earnings	$	748	$	640	$	1,847	$	1,743

U.S. downstream operations earned $748 million in third quarter2018, compared with earnings of $640 million a year earlier. The increase was primarily due to higher equity earnings of $70 million from the 50 percent-owned Chevron Phillips Chemical Company LLC and lower tax expenses of $60 million, partially offset by higher operating expenses of $40 million.

Earnings for the first nine months of 2018 were $1.85 billion, compared with earnings of $1.74 billion a year earlier. Higher equity earnings from the 50 percent-owned Chevron Phillips Chemical Company LLC of $190

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million and lower tax expenses of $180 million were partially offset by higher operating expenses of $290 million, primarily due to planned refinery turnaround activity.

Refinery crude oil input in third quarter2018 decreased 2 percent from the year-ago period to 915,000 barrels per day. For the first nine months of 2018, crude oil input was 900,000 barrels per day, down 3 percent from the corresponding 2017 period. Refined product sales of 1.23 million barrels per day were unchanged from third quarter2017. Refined product sales of 1.22 million barrels per day in the nine-month period were up 1 percent from the first nine months of 2017.

	Three Months Ended September 30					Nine Months Ended September 30
	2018			2017		2018		2017
	(Millions of dollars)
International Downstream Earnings*	$	625		$	1,174	$	1,092	$	2,192
_______________________
*  Includes foreign currency effects	$	(7	)	$	15	$	48	$	(27	)

International downstream operations earned $625 million in third quarter2018, compared with $1.17 billion a year earlier. The decrease in earnings was largely due to lower gains on asset sales of $410 million. The absence of third quarter 2017 gains on asset sales more than offset the current quarter gain from the southern Africa asset sale. Lower margins on refined product sales of $260 million also contributed to the decrease, partially offset by lower operating expenses of $90 million. The sale of the company’s Canadian assets in third quarter 2017 contributed to the lower margins and operating expenses. Foreign currency effects had an unfavorable impact on earnings of $22 million between periods.

Earnings for the first nine months of 2018 were $1.09 billion,compared with $2.19 billion a year earlier. The decrease in earnings was largely due to lower margins on refined product sales of $980 million and lower gains on asset sales of $470 million, partially offset by lower operating expenses of $270 million. The sale of the company's Canadian refining and marketing business in third quarter 2017 contributed to the lower margins and operating expenses. Foreign currency effects had a favorable impact on earnings of $75 million between periods.

Refinery crude oil input of 710,000 barrels per day in third quarter2018 decreased 91,000 barrels per day from the year-ago period, mainly due to the sale of the company’s Canadian refining asset in third quarter 2017 and crude unit maintenance at the refineries in Thailand and Singapore. For the first nine months of 2018, crude input was 721,000 barrels per day, down 5 percent from the year-ago period.

Total refined product sales of 1.44 million barrels per day in third quarter2018 were down 8 percent from the year-ago period, primarily due to lower diesel, gasoline and jet fuel sales partially offset by higher fuel oil sales. Total refined product sales for the first nine months of 2018 of 1.45 million barrels per day were down 2 percent from the year-ago period.

All Other

	Three Months Ended September 30						Nine Months Ended September 30
	2018			2017			2018			2017
	(Millions of dollars)
Net Charges*	$	(705	)	$	(351	)	$	(1,871	)	$	(710	)
______________________
*  Includes foreign currency effects	$	(2	)	$	37		$	—		$	117

All Other consists of worldwide cash management and debt financing activities, corporate administrative functions, insurance operations, real estate activities and technology companies.

Net charges in third quarter2018 were $705 million, compared with $351 million a year earlier. The change between periods was mainly due to higher tax items and interest expense, partially offset by lower employee expense. Foreign currency effects increased net charges by $39 million between periods.

Net charges for the first nine months of 2018 were $1.87 billion, compared with $710 million a year earlier. The change between periods was mainly due higher tax items and interest expense, partially offset by lower employee expense. Foreign currency effects increased net charges by $117 million between periods.

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Consolidated Statement of Income

Explanations of variations between periods for selected income statement categories are provided below:

	Three Months Ended September 30				Nine Months Ended September 30
	2018		2017		2018		2017
	(Millions of dollars)
Sales and other operating revenues	$	42,105	$	33,892	$	118,564	$	98,293

Sales and other operating revenues increased $8.21 billion for the quarterly period mainly due to higher crude oil and refined product prices, partially offset by lower refined product sales volumes. Sales and other operating revenues increased $20.27 billion for the nine-month period mainly due to higher crude oil, refined product and natural gas prices, partially offset by lower refined product sales volumes.

Beginning in 2018, excise, value-added and similar taxes collected on behalf of third parties were no longer included in "Sales and other operating revenues," but are netted in "Taxes other than on income" in accordance with ASU 2014-09. Third quarter 2017 includes $1.87 billion and the first nine months of 2017 include $5.32 billion in taxes collected on behalf of third parties.

	Three Months Ended September 30				Nine Months Ended September 30
	2018		2017		2018		2017
	(Millions of dollars)
Income from equity affiliates	$	1,555	$	1,036	$	4,685	$	3,502

Income from equity affiliates in the quarterly period increased mainly due to higher upstream-related earnings from Tengizchevroil in Kazakhstan and Petropiar in Venezuela, and higher downstream-related earnings from CPChem, partially offset by lower downstream-related earnings from GS Caltex in South Korea. Income from equity affiliates in the nine-month period increased mainly due to higher upstream-related earnings from Tengizchevroil in Kazakhstan, Petroboscan and Petropiar in Venezuela, and higher downstream-related earnings from CPChem, partially offset by lower downstream-related earnings from GS Caltex in South Korea.

	Three Months Ended September 30				Nine Months Ended September 30
	2018		2017		2018		2017
	(Millions of dollars)
Other income	$	327	$	1,277	$	738	$	2,311

Other income for the quarterly period decreased due to lower gains on asset sales and an unfavorable swing in foreign currency effects. The nine-month period decreased due to lower gains on asset sales.

	Three Months Ended September 30				Nine Months Ended September 30
	2018		2017		2018		2017
	(Millions of dollars)
Purchased crude oil and products	$	24,681	$	18,776	$	70,658	$	54,607

Purchases increased $5.91 billion for the quarterly period and $16.05 billion for the nine-month period primarily due to higher crude oil and refined product prices, partially offset by lower crude oil purchase volumes.

	Three Months Ended September 30				Nine Months Ended September 30
	2018		2017		2018		2017
	(Millions of dollars)
Operating, selling, general and administrative expenses	$	6,003	$	5,956	$	17,657	$	16,869

Operating, selling, general and administrative expenses increased $47 million between quarterly periods primarily due to a contractual settlement and higher transportation and materials and supplies expenses, partially offset by lower employee expenses.

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Expenses increased $788 million between nine-month periods primarily due to a receivable write-down, a contractual settlement, higher services and fees, and higher materials and supplies expenses.

	Three Months Ended September 30				Nine Months Ended September 30
	2018		2017		2018		2017
	(Millions of dollars)
Exploration expenses	$	625	$	239	$	960	$	508

The increase in exploration expenses for both the quarterly and nine-month periods was primarily due to higher charges for well write-offs.

	Three Months Ended September 30				Nine Months Ended September 30
	2018		2017		2018		2017
	(Millions of dollars)
Depreciation, depletion and amortization	$	5,380	$	5,109	$	14,167	$	14,614

Depreciation, depletion and amortization expenses in third quarter 2018 increased mainly due to higher production levels for certain oil and gas producing fields, an asset impairment, and higher write-offs, partially offset by lower depreciation rates for certain oil and gas producing fields and the absence of third quarter 2017 catch-up depreciation for Bangladesh operations. The nine-month period decreased mainly due to lower depreciation rates for certain oil and gas producing fields, lower impairment expenses, and the absence of third quarter 2017 catch-up depreciation for Bangladesh operations, partially offset by higher production levels for certain oil and gas producing fields.

	Three Months Ended September 30				Nine Months Ended September 30
	2018		2017		2018		2017
	(Millions of dollars)
Taxes other than on income	$	1,259	$	3,213	$	3,966	$	9,149

Beginning in 2018, excise, value-added and similar taxes collected on behalf of third parties were netted in "Taxes other than on income" and were no longer included in "Sales and other operating revenues," in accordance with ASU 2014-09. Third quarter 2017 includes $1.87 billion and the first nine months of 2017 include $5.32 billion in taxes collected on behalf of third parties. Partially offsetting the decrease in the quarterly and nine-month period were higher duties reflecting increased production.

	Three Months Ended September 30				Nine Months Ended September 30
	2018		2017		2018		2017
	(Millions of dollars)
Interest and debt expense	$	182	$	35	$	558	$	134

Interest and debt expenses for the third quarter and the nine-month periods increased mainly due to a decrease in the amount of interest capitalized.

	Three Months Ended September 30				Nine Months Ended September 30
	2018		2017		2018		2017
	(Millions of dollars)
Other components of net periodic benefit costs	$	158	$	219	$	344	$	485

Other components of net periodic benefit costs for the third quarter and the nine-month periods decreased mainly due to a decrease in settlement losses, an increase in plan asset values and a decrease in amortization of actuarial losses. This line was added to the Consolidated Statement of Income in accordance with the adoption of ASU 2017-07.

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	Three Months Ended September 30				Nine Months Ended September 30
	2018		2017		2018		2017
	(Millions of dollars)
Income tax expense	$	1,643	$	672	$	4,540	$	1,589

The increase in income tax expense between quarterly periods of $971 million is consistent with the increase in total income before tax for the company of $3.04 billion.

U.S. income before tax increased from a loss of $211 million in third quarter 2017 to income of $1.09 billion in 2018. This increase in income was primarily driven by the effect of higher crude oil prices and higher production. The increase in income had a direct impact on the company’s U.S. income tax cost which was partially offset by the lower U.S. statutory tax rate. This resulted in an increase in tax expense of $543 million between year-over-year periods, from a tax benefit of $305 million in 2017 to a tax charge of $238 million in 2018.

International income before tax increased from $2.87 billion in third quarter 2017 to $4.61 billion in 2018. This $1.74 billion increase was primarily driven by the effect of higher crude oil prices and higher production. The increase in income primarily drove the $428 million increase in international income tax expense between year-over-year periods, from $977 million in 2017 to $1.41 billion in 2018.

The increase in income tax expense for the first nine months of 2018 of $2.95 billion is consistent with the increase in total income before tax for the company of $7.94 billion.

U.S. income before tax for the first nine months increased from a loss of $66 million in 2017 to income of $3.00 billion in 2018. This increase in income was primarily driven by the effect of higher crude oil prices and higher production. The increase in income had a direct impact on the company’s U.S. income tax cost, which was partially offset by the lower U.S. statutory tax rate. This resulted in an increase in tax expense of $1.26 billion between year-over-year periods, from a benefit of $549 million in 2017 to a tax charge of $712 million in 2018.

International income before tax for the first nine months increased from $7.81 billion in 2017 to $12.68 billion in 2018. This $4.87 billion increase was primarily driven by the effect of higher crude oil prices and higher production. The increase in income primarily drove the $1.69 billion increase in international income tax expense between year-over-year periods, from $2.14 billion in 2017 to $3.83 billion in 2018.

Refer also to the discussion of the effective income tax rate in Note 12 on pages 15 and 16.

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Selected Operating Data

The following table presents a comparison of selected operating data:

Selected Operating Data ^{(1) (2)} 

	Three Months Ended September 30				Nine Months Ended September 30
	2018		2017		2018		2017
U.S. Upstream
Net crude oil and natural gas liquids production (MBPD)	654		525		599		520
Net natural gas production (MMCFPD)(3)	1,061		932		1,011		988
Net oil-equivalent production (MBOEPD)	831		681		768		684
Sales of natural gas (MMCFPD)	3,334		3,455		3,343		3,288
Sales of natural gas liquids (MBPD)	114		37		110		34
Revenue from net production
Liquids ($/Bbl)	$	61.99	$	41.83	$	59.13	$	42.65
Natural gas ($/MCF)	$	1.80	$	1.80	$	1.81	$	2.17
International Upstream
Net crude oil and natural gas liquids production (MBPD)(4)	1,133		1,194		1,155		1,206
Net natural gas production (MMCFPD)(3)	5,951		5,053		5,731		5,001
Net oil-equivalent production (MBOEPD)(4)	2,125		2,036		2,110		2,040
Sales of natural gas (MMCFPD)	5,681		4,978		5,379		5,018
Sales of natural gas liquids (MBPD)	32		28		34		29
Revenue from liftings
Liquids ($/Bbl)	$	68.73	$	47.81	$	65.85	$	47.07
Natural gas ($/MCF)	$	6.73	$	4.76	$	6.10	$	4.50
U.S. and International Upstream
Total net oil-equivalent production (MBOEPD)(4)	2,956		2,717		2,878		2,724
U.S. Downstream
Gasoline sales (MBPD)(5)	644		649		629		629
Other refined product sales (MBPD)	590		576		591		577
Total refined product sales (MBPD)	1,234		1,225		1,220		1,206
Sales of natural gas liquids (MBPD)	74		100		68		108
Refinery input (MBPD)	915		931		900		924
International Downstream
Gasoline sales (MBPD)(5)	301		352		310		339
Other refined product sales (MBPD)	766		835		770		785
Share of affiliate sales (MBPD)	368		369		369		360
Total refined product sales (MBPD)	1,435		1,556		1,449		1,484
Sales of natural gas liquids (MBPD)	64		62		62		65
Refinery input (MBPD)(6)	710		801		721		760
________________________________
(1)  Includes company share of equity affiliates.
(2)  MBPD — thousands of barrels per day; MMCFPD — millions of cubic feet per day; Bbl — Barrel; MCF — thousands of cubic feet; oil-equivalent gas conversion ratio is 6,000 cubic feet of natural gas = 1 barrel of crude oil; MBOEPD — thousands of barrels of oil-equivalent per day.
(3)  Includes natural gas consumed in operations (MMCFPD):
United States	34		34		34		37
International	567		545		569		523
(4)  Includes net production of synthetic oil:
Canada	54		56		53		52
Venezuela affiliate	24		29		24		29
(5)  Includes branded and unbranded gasoline.
(6)  In third quarter 2017, the company sold the Burnaby Refinery in British Columbia, Canada, which included operable capacity of 55,000 barrels per day.

36

Liquidity and Capital Resources

Cash, cash equivalents and marketable securities totaled $9.7 billion at September 30, 2018 and $4.8 billion at year-end 2017. Cash provided by operating activities in the first nine months of 2018 was $21.5 billion, compared with $14.2 billion in the year-ago period, reflecting higher prices and production, partially offset by higher working capital requirements in the current period. Cash capital and exploratory expenditures totaled $10.2 billion in the first nine months of 2018, up $96 million from the year-ago period. Proceeds and deposits related to asset sales and returns of investment totaled $1.9 billion and $244 million, respectively in the first nine months of 2018, compared to $4.6 billion and $162 million, respectively in the year ago period.

Dividends The company paid dividends of $6.4 billion to common stockholders during the first nine months of 2018. In October 2018, the company declared a quarterly dividend of $1.12 per common share, payable in December 2018.

Debt and Capital Lease Obligations Chevron’s total debt and capital lease obligations were $36.1 billion at September 30, 2018, down from $38.8 billion at December 31, 2017.

The company’s primary financing source for working capital needs is its commercial paper program. The outstanding balance for the company's commercial paper program at September 30, 2018 was $7.3 billion. The company’s debt and capital lease obligations due within one year, consisting primarily of commercial paper, redeemable long-term obligations and the current portion of long-term debt, totaled $16.1 billion at September 30, 2018, and $15.2 billion at December 31, 2017. Of these amounts, $10.0 billion was reclassified to long-term at both September 30, 2018, and December 31, 2017. At September 30, 2018, settlement of these obligations was not expected to require the use of working capital within one year, as the company had the intent and the ability, as evidenced by committed credit facilities, to refinance them on a long-term basis.

At September 30, 2018, the company had $10.0 billion in committed credit facilities with various major banks that enable the refinancing of short-term obligations on a long-term basis. The credit facilities consist of a 364-day facility which enables borrowing of up to $9,575 million and allows the company to convert any amounts outstanding into a term loan for a period of up to one year, as well as a $425 million five-year facility expiring in December 2020. These facilities support commercial paper borrowing and can also be used for general corporate purposes. The company’s practice has been to continually replace expiring commitments with new commitments on substantially the same terms, maintaining levels management believes appropriate. Any borrowings under the facilities would be unsecured indebtedness at interest rates based on the London Interbank Offered Rate or an average of base lending rates published by specified banks and on terms reflecting the company’s strong credit rating. No borrowings were outstanding under these facilities at September 30, 2018. In addition, the company has an automatic shelf registration statement that expires in May 2021 for an unspecified amount of nonconvertible debt securities issued or guaranteed by the company.

The major debt rating agencies routinely evaluate the company’s debt, and the company’s cost of borrowing can increase or decrease depending on these debt ratings. The company has outstanding public bonds issued by Chevron Corporation and Texaco Capital Inc. All of these securities are the obligations of, or guaranteed by, Chevron Corporation and are rated AA- by Standard and Poor’s Corporation and Aa2 by Moody’s Investors Service. The company’s U.S. commercial paper is rated A-1+ by Standard and Poor’s and P-1 by Moody’s. All of these ratings denote high-quality, investment-grade securities.

The company’s future debt level is dependent primarily on results of operations, the capital program and cash that may be generated from asset dispositions. Based on its high-quality debt ratings, the company believes that it has substantial borrowing capacity to meet unanticipated cash requirements. During extended periods of low prices for crude oil and natural gas and narrow margins for refined products and commodity chemicals, the company can also modify capital spending plans to provide flexibility to continue paying the common stock dividend and also remain committed to retaining the company’s high-quality debt ratings.

Common Share Repurchase Program In July 2010, the Board of Directors approved an ongoing share repurchase program with no set term or monetary limits. From the inception of the program through 2014, the company had purchased 180.9 million shares for $20.0 billion. No shares were acquired under the program in 2015 to 2017 or through the first six months of 2018. In July 2018, the company announced plans to initiate share repurchases. In third quarter 2018, the company repurchased 6.3 million shares for $750 million. Repurchases may be made from

37

time to time in the open market, by block purchases, in privately negotiated transactions or in such other manner as determined by the company. The timing of the repurchases and the actual amount repurchased will depend on a variety of factors, including the market price of the company's shares, general market and economic conditions, and other factors. The share repurchase program does not obligate the company to acquire any particular amount of common stock, and it may be suspended or discontinued at any time.

Noncontrolling Interests The company had noncontrolling interests of $1.1 billion at September 30, 2018, and $1.2 billion at December 31, 2017. There were distributions of $87 million to noncontrolling interests during the first nine months of 2018 compared to $66 million for the same period in 2017.

Current Ratio Current assets divided by current liabilities, which indicates the company’s ability to repay its short-term liabilities with short-term assets. The current ratio was 1.2 at September 30, 2018, and 1.0 at December 31, 2017, respectively. The current ratio is adversely affected by the fact that Chevron’s inventories are valued on a last-in, first-out basis. At September 30, 2018, the book value of inventory was lower than replacement cost.

Debt Ratio Total debt as a percentage of total debt plus Chevron Corporation Stockholders’ Equity, which indicates the company’s leverage, was 19.0 percent at September 30, 2018, and 20.7 percent at year-end 2017.

Pension Obligations Information related to pension plan contributions is included on page 15 in Note 11 to the Consolidated Financial Statements.

Capital and Exploratory Expenditures Total expenditures, including the company’s share of spending by affiliates, were $14.3 billion in the first nine months of 2018, compared with $13.4 billion in the corresponding 2017 period. The amounts included the company’s share of affiliates’ expenditures of $4.1 billion and $3.3 billion in the 2018 and 2017 periods, respectively, which did not require cash outlays by the company. Expenditures for upstream projects in the first nine months of 2018 were $12.7 billion, representing 88 percent of the companywide total.

Capital and Exploratory Expenditures by Major Operating Area

	Three Months Ended September 30				Nine Months Ended September 30
	2018		2017		2018		2017
	(Millions of dollars)
United States
Upstream	$	1,903	$	1,201	$	5,166	$	3,406
Downstream	377		367		1,155		1,049
All Other	72		63		156		132
Total United States	2,352		1,631		6,477		4,587
International
Upstream	2,639		2,715		7,524		8,501
Downstream	132		110		341		297
All Other	1		—		3		1
Total International	2,772		2,825		7,868		8,799
Worldwide	$	5,124	$	4,456	$	14,345	$	13,386

Contingencies and Significant Litigation

MTBE Information related to methyl tertiary butyl ether (MTBE) matters is included on page 16 in Note 13 to the Consolidated Financial Statements under the heading “MTBE.”

Ecuador Information related to Ecuador matters is included beginning on page 16 in Note 13 to the Consolidated Financial Statements under the heading “Ecuador.”

Income Taxes Information related to income tax contingencies is included beginning on page 15 in Note 12 and page 21 in Note 14 to the Consolidated Financial Statements under the heading “Income Taxes.”

Guarantees Information related to the company’s guarantees is included on page 21 in Note 14 to the Consolidated Financial Statements under the heading “Guarantees.”

38

Indemnifications Information related to indemnifications is included on page21 in Note 14 to the Consolidated Financial Statements under the heading “Indemnifications.”

Off-Balance-Sheet Obligations Information related to the company’s off-balance-sheet obligations is included on page21 in Note 14 to the Consolidated Financial Statements under the heading “Off-Balance-Sheet Obligations.”

Environmental Information related to environmental matters is included on page21 in Note 14 to the Consolidated Financial Statements under the heading “Environmental.”

Other Contingencies Information related to the company’s other contingencies is included beginning on page 21 in Note 14 to the Consolidated Financial Statements under the heading “Other Contingencies.”

Item 3. Quantitative and Qualitative Disclosures About Market Risk

Information about market risks for the nine months ended September 30, 2018, does not differ materially from that discussed under Item 7A of Chevron’s 2017 Annual Report on Form 10-K.

Item 4. Controls and Procedures

(a) Evaluation of disclosure controls and procedures

The company’s management has evaluated, with the participation of the Chief Executive Officer and Chief Financial Officer, the effectiveness of the company’s disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934) as of the end of the period covered by this report. Based on this evaluation, the Chief Executive Officer and Chief Financial Officer concluded that the company’s disclosure controls and procedures were effective as of September 30, 2018.

(b) Changes in internal control over financial reporting

During the quarter ended September 30, 2018, there were no changes in the company’s internal control over financial reporting that have materially affected, or are reasonably likely to materially affect, the company’s internal control over financial reporting.

PART II

OTHER INFORMATION

Item 1. Legal Proceedings

Governmental Proceedings The following is a description of legal proceedings that the company has determined to disclose for this reporting period that involve governmental authorities and certain monetary sanctions under federal, state and local laws that have been enacted or adopted regulating the discharge of materials into the environment or primarily for the purpose of protecting the environment. The following proceedings include those matters relating to third quarter 2018 and any material developments with respect to matters previously reported in Chevron’s 2017 Annual Report on Form 10-K. 

Chevron facilities within the jurisdiction of California’s South Coast Air Quality Management District (SCAQMD) currently have multiple outstanding Notices of Violation (NOVs) issued by SCAQMD. Resolution of the alleged violations may result in the payment of a civil penalty of $100,000 or more. On August 8, 2018, Chevron received a proposal from SCAQMD seeking to resolve certain NOVs related to alleged violations that occurred at Chevron's El Segundo Refinery between 2014 and 2015. On August 28, 2018, Chevron and SCAQMD entered into a settlement agreement to resolve allegations in the NOVs for a civil penalty of $160,000.

As previously disclosed, on August 3, 2017, Chevron received a Notice of Intent to File an Administrative Complaint from the U.S. Environmental Protection Agency (EPA) in connection with certain waste matters at the Kapolei, Hawaii refinery during the period of time that the facility was owned and operated by Chevron. On September 25, 2018, Chevron and the EPA entered into a settlement agreement to resolve these matters for a civil penalty of $48,235.

As previously disclosed, on August 6, 2012, a piping failure and fire occurred at the Chevron refinery in Richmond, California. The EPA issued alleged findings of violation related to the incident on December 17, 2013, pursuant to its authority under the Clean Air Act Risk Management Plan program (RMP). Following the

39

Richmond incident, EPA also conducted RMP inspections at Chevron’s refineries in El Segundo, California; Pascagoula, Mississippi; Kapolei, Hawaii; and Salt Lake City, Utah. On October 24, 2018, the U.S. Department of Justice (DOJ) lodged with the United States District Court for the Northern District of California a consent decree executed by Chevron, DOJ, EPA, and the State of Mississippi that resolves all of EPA’s alleged findings of violation related to the Richmond incident and subsequent RMP inspections. The consent decree includes the payment of a civil penalty of $2.95 million and the funding of supplemental environmental projects totaling $10 million. Chevron also agreed, as part of the consent decree, to investments in process safety enhancements at its current refineries, estimated at $150 million, a portion of which has already been spent. The consent decree is pending a mandatory public comment period and court approval.

Chevron facilities within the jurisdiction of California’s Bay Area Air Quality Management District (BAAQMD) currently have multiple outstanding Notices of Violation (NOVs) issued by BAAQMD. Resolution of the alleged violations may result in the payment of a civil penalty of $100,000 or more. As initially disclosed in the Quarterly Report on Form 10-Q for the quarter ended June 30, 2018, on June 26, 2018, Chevron received a proposal from the BAAQMD seeking to collectively resolve certain NOVs issued between 2015 and 2017 to Chevron’s Richmond Refinery.  On November 5, 2018, Chevron and the BAAQMD entered into a settlement agreement to resolve allegations in the disputed NOVs for a civil penalty of $222,000.

Other Proceedings Information related to legal proceedings, including Ecuador, is included beginning on page 17 in Note 13 to the Consolidated Financial Statements.

Item 1A. Risk Factors

Chevron is a global energy company with a diversified business portfolio, a strong balance sheet, and a history of generating sufficient cash to fund capital and exploratory expenditures and to pay dividends. Nevertheless, some inherent risks could materially impact the company’s financial results of operations or financial condition.

Information about risk factors for the three months ended September 30, 2018, does not differ materially from that set forth under the heading “Risk Factors” on pages 19 through 22 of the company’s 2017 Annual Report on Form 10-K.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

CHEVRON CORPORATION

ISSUER PURCHASES OF EQUITY SECURITIES

Period	Total Number Of Shares Purchased (1)(2)	Average Price Paid per Share		Total Number of Shares Purchased as Part of Publicly Announced Program	Maximum Number of Shares that May Yet Be Purchased Under the Program (2)
July 1 – July 31, 2018	115	$	124.24	—
August 1 – August 31, 2018	3,274,272	120.80		3,274,272
September 1 – September 30, 2018	2,980,903	118.92		2,980,903
Total	6,255,290	$	119.90	6,255,175

______________________________________

⁽¹⁾  Includes common shares repurchased from company employees and directors for required personal income tax withholdings on the exercise of the stock options and shares delivered or attested to in satisfaction of the exercise price by holders of employee and director stock options. The options were issued to and exercised by employees and directors under Chevron's long-term incentive plans.

⁽²⁾  In July 2010, the Board of Directors approved an ongoing share repurchase program with no set term or monetary limits, under which common shares would be acquired by the company at prevailing prices, as permitted by securities laws and other legal requirements and subject to market conditions and other factors. From inception of the program through 2014, the company had purchased 180,886,291 shares under this program (some pursuant to Rule 10b5-1 plan and some pursuant to accelerated share repurchase plans) for $20.0 billion at an average price of approximately $111 per share. No shares were acquired under the program in 2015, 2016 or 2017 or through the first six months of 2018. In third quarter 2018, share repurchases totaled $750 million.

40

Item 6. Exhibits

Exhibit Index

Exhibit Number	Description
(31.1)*	Rule 13a-14(a)/15d-14(a) Certification by the company’s Chief Executive Officer
(31.2)*	Rule 13a-14(a)/15d-14(a) Certification by the company’s Chief Financial Officer
(32.1)*	Rule 13a-14(b)/15d-14(b) Certification by the company’s Chief Executive Officer
(32.2)*	Rule 13a-14(b)/15d-14(b) Certification by the company’s Chief Financial Officer
(101.INS)*	XBRL Instance Document
(101.SCH)*	XBRL Schema Document
(101.CAL)*	XBRL Calculation Linkbase Document
(101.DEF)*	XBRL Definition Linkbase Document
(101.LAB)*	XBRL Label Linkbase Document
(101.PRE)*	XBRL Presentation Linkbase Document

Attached as Exhibit 101 to this report are documents formatted in XBRL (Extensible Business Reporting Language). The financial information contained in the XBRL-related documents is “unaudited” or “unreviewed.”

______________________________

* Filed herewith.

41

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

CHEVRON CORPORATION

(REGISTRANT)

/S/    JEANETTE L. OURADA

Jeanette L. Ourada, Vice President and Comptroller

(Principal Accounting Officer and

Duly Authorized Officer)

Date: November 8, 2018

42

EX-31.1

Exhibit 31.1

RULE 13a-14(a)/15d-14(a) CERTIFICATION PURSUANT TO

SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Michael K. Wirth, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Chevron Corporation;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

/S/    MICHAEL K. WIRTH

Michael K. Wirth

Chairman of the Board and

Chief Executive Officer

Dated: November 8, 2018

43

EX-31.2

Exhibit 31.2

RULE 13a-14(a)/15d-14(a) CERTIFICATION PURSUANT TO

SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Patricia E. Yarrington, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Chevron Corporation;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

/S/    PATRICIA E. YARRINGTON

Patricia E. Yarrington

Vice President and

Chief Financial Officer

Dated: November 8, 2018

44

EX-32.1

Exhibit 32.1

RULE 13a-14(b)/15d-14(b) CERTIFICATION PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 (18 U.S.C. SECTION 1350)

In connection with the Quarterly Report on Form 10-Q of Chevron Corporation (the “Company”) for the period ended September 30, 2018, as filed with the U.S. Securities and Exchange Commission on the date hereof (the “Report”), I, Michael K. Wirth, Chairman and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

(1) the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/S/    MICHAEL K. WIRTH

Michael K. Wirth

Chairman of the Board and

Chief Executive Officer

Dated: November 8, 2018

45

EX-32.2

Exhibit 32.2

RULE 13a-14(b)/15d-14(b) CERTIFICATION PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 (18 U.S.C. SECTION 1350)

In connection with the Quarterly Report on Form 10-Q of Chevron Corporation (the “Company”) for the period ended September 30, 2018, as filed with the U.S. Securities and Exchange Commission on the date hereof (the “Report”), I, Patricia E. Yarrington, Vice President and Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

(1) the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/S/    PATRICIA E. YARRINGTON

Patricia E. Yarrington

Vice President and

Chief Financial Officer

Dated: November 8, 2018

46

XML

Document and Entity Information	9 Months Ended
	Sep. 30, 2018 shares
Document and Entity Information [Abstract]
Entity Registrant Name	CHEVRON CORP
Entity Central Index Key	0000093410
Document Type	10-Q
Document Period End Date	Sep. 30, 2018
Amendment Flag	false
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q3
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Common Stock, Shares Outstanding	1,910,774,369

XML

CONSOLIDATED STATEMENT OF INCOME (Unaudited) - USD ($) shares in Thousands, $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Revenues and Other Income
Sales and other operating revenues	[1]	$ 42,105		$ 118,564
Sales and other operating revenues	[1]		$ 33,892		$ 98,293
Income from equity affiliates		1,555	1,036	4,685	3,502
Other income		327	1,277	738	2,311
Total Revenues and Other Income		43,987	36,205	123,987	104,106
Costs and Other Deductions
Purchased crude oil and products		24,681	18,776	70,658	54,607
Operating expenses	[2]	4,985	4,849	14,899	14,021
Selling, general and administrative expenses	[2]	1,018	1,107	2,758	2,848
Exploration expenses		625	239	960	508
Depreciation, depletion and amortization		5,380	5,109	14,167	14,614
Taxes other than on income	[1]	1,259	3,213	3,966	9,149
Interest and debt expense		182	35	558	134
Other components of net periodic benefit costs	[2]	158	219	344	485
Total Costs and Other Deductions		38,288	33,547	108,310	96,366
Income Before Income Tax Expense		5,699	2,658	15,677	7,740
Income Tax Expense		1,643	672	4,540	1,589
Net Income		4,056	1,986	11,137	6,151
Less: Net income attributable to noncontrolling interests		9	34	43	67
Net Income Attributable to Chevron Corporation		$ 4,047	$ 1,952	$ 11,094	$ 6,084
Per Share of Common Stock:
Net Income Attributable to Chevron Corporation - Basic (in dollars per share)		$ 2.13	$ 1.03	$ 5.84	$ 3.23
Net Income Attributable to Chevron Corporation - Diluted (in dollars per share)		$ 2.11	$ 1.03	$ 5.79	$ 3.21
Weighted Average Number of Shares Outstanding
Basic (in shares)		1,900,717	1,882,650	1,899,044	1,881,026
Diluted (in shares)		1,917,474	1,895,879	1,916,562	1,894,764

[1] The three-month and nine-month comparative periods ended September 30, 2017, include excise, value-added and similar taxes of $1,867 million and $5,315 million, respectively, collected on behalf of third parties. Beginning in 2018, these taxes are netted in "Taxes other than on income" in accordance with ASU 2014-09. Refer to Note 17, "Revenue" beginning on page 24.

[2] 2017 adjusted to conform to ASU 2017-07. Refer to Note 5, "New Accounting Standards" beginning on page 10.

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CONSOLIDATED STATEMENT OF INCOME (Unaudited) (Parenthetical) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2017
Income Statement [Abstract]
Includes excise, value-added and similar taxes	$ 1,867	$ 5,315

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CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Statement of Comprehensive Income [Abstract]
Net Income	$ 4,056	$ 1,986	$ 11,137	$ 6,151
Currency translation adjustment	(2)	13	(12)	37
Unrealized holding gain (loss) on securities:
Net gain (loss) arising during period	1	(2)	(6)	(7)
Actuarial gain (loss):
Amortization to net income of net actuarial and settlement losses	214	264	522	609
Actuarial gain (loss) arising during period	(92)	3	(94)	(11)
Prior service cost:
Amortization to net income of net prior service costs (credits)	(2)	(5)	(9)	(15)
Defined benefit plans sponsored by equity affiliates	5	5	18	15
Income tax expense on defined benefit plans	(21)	(96)	(95)	(207)
Total	104	171	342	391
Other Comprehensive Gain, Net of Tax	103	182	324	421
Comprehensive Income	4,159	2,168	11,461	6,572
Comprehensive income attributable to noncontrolling interests	(9)	(34)	(43)	(67)
Comprehensive Income Attributable to Chevron Corporation	$ 4,150	$ 2,134	$ 11,418	$ 6,505

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CONSOLIDATED BALANCE SHEET (Unaudited) - USD ($) $ in Millions		Sep. 30, 2018	Dec. 31, 2017
ASSETS
Cash and cash equivalents		$ 9,686	$ 4,813
Marketable securities		60	9
Accounts and notes receivable, net		16,788	15,353
Inventories
Crude oil and petroleum products		3,618	3,142
Chemicals		495	476
Materials, supplies and other		1,916	1,967
Total inventories		6,029	5,585
Prepaid expenses and other current assets		3,020	2,800
Total Current Assets		35,583	28,560
Long-term receivables, net		2,460	2,849
Investments and advances		34,672	32,497
Properties, plant and equipment, at cost		344,949	344,485
Less: Accumulated depreciation, depletion and amortization		173,304	166,773
Properties, plant and equipment, net		171,645	177,712
Deferred charges and other assets		6,745	7,017
Goodwill		4,518	4,531
Assets held for sale		983	640
Total Assets		256,606	253,806
LIABILITIES AND EQUITY
Short-term debt		6,121	5,192
Accounts payable		15,335	14,565
Accrued liabilities		5,029	5,267
Federal and other taxes on income		1,797	1,600
Other taxes payable		901	1,113
Total Current Liabilities		29,183	27,737
Long-term debt		29,854	33,477
Capital lease obligations		135	94
Deferred credits and other noncurrent obligations		20,414	21,106
Noncurrent deferred income taxes		15,624	14,652
Noncurrent employee benefit plans		6,723	7,421
Total Liabilities	[1]	101,933	104,487
Preferred stock (authorized 100,000,000 shares, $1.00 par value, none issued)		0	0
Common stock (authorized 6,000,000,000 shares; $0.75 par value; 2,442,676,580 shares issued at September 30, 2018, and December 31, 2017)		1,832	1,832
Capital in excess of par value		17,080	16,848
Retained earnings		178,816	174,106
Accumulated other comprehensive loss		(3,265)	(3,589)
Deferred compensation and benefit plan trust		(240)	(240)
Treasury stock, at cost (531,902,211 and 537,974,695 shares at September 30, 2018, and December 31, 2017, respectively)		(40,648)	(40,833)
Total Chevron Corporation Stockholders’ Equity		153,575	148,124
Noncontrolling interests		1,098	1,195
Total Equity		154,673	149,319
Total Liabilities and Equity		$ 256,606	$ 253,806

[1] Refer to Note 14, "Other Contingencies and Commitments" beginning on page 20.

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CONSOLIDATED BALANCE SHEET (Unaudited) (Parenthetical) - $ / shares	Sep. 30, 2018	Dec. 31, 2017
Statement of Financial Position [Abstract]
Preferred stock, shares authorized (in shares)	100,000,000	100,000,000
Preferred stock, par value (in dollars per share)	$ 1.00	$ 1.00
Preferred stock, shares issued (in shares)	0	0
Common stock, shares authorized (in shares)	6,000,000,000	6,000,000,000
Common stock, par value (in dollars per share)	$ 0.75	$ 0.75
Common stock, shares issued (in shares)	2,442,676,580	2,442,676,580
Treasury stock (in shares)	531,902,211	537,974,695

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CONSOLIDATED STATEMENT OF CASH FLOWS (Unaudited) - USD ($) $ in Millions		9 Months Ended
		Sep. 30, 2018	Sep. 30, 2017
Operating Activities
Net Income		$ 11,137	$ 6,151
Adjustments
Depreciation, depletion and amortization		14,167	14,614
Dry hole expense		596	140
Distributions less than income from equity affiliates	[1]	(2,526)	(2,284)
Net before-tax gains on asset retirements and sales		(560)	(2,139)
Net foreign currency effects		330	145
Deferred income tax provision		806	(464)
Net decrease (increase) in operating working capital	[2]	(1,882)	(548)
Decrease (increase) in long-term receivables		363	(537)
Net decrease (increase) in other deferred charges	[2]	(60)	(82)
Cash contributions to employee pension plans		(941)	(825)
Other		37	74
Net Cash Provided by Operating Activities	[1],[2]	21,467	14,245
Investing Activities
Capital expenditures		(9,801)	(9,763)
Proceeds and deposits related to asset sales and returns of investment	[1],[2]	2,116	4,765
Net sales (purchases) of marketable securities		(51)	0
Net repayment (borrowing) of loans by equity affiliates		78	(36)
Net Cash Used for Investing Activities	[1],[2]	(7,658)	(5,034)
Financing Activities
Net borrowings (repayments) of short-term obligations		2,199	(7,185)
Proceeds from issuance of long-term debt		217	3,991
Repayments of long-term debt and other financing obligations		(5,227)	(1,028)
Cash dividends — common stock		(6,382)	(6,093)
Distributions to noncontrolling interests		(87)	(66)
Net sales of treasury shares		337	649
Net Cash Used for Financing Activities		(8,943)	(9,732)
Effect of Exchange Rate Changes on Cash, Cash Equivalents and Restricted Cash	[2]	(68)	62
Net Change in Cash, Cash Equivalents and Restricted Cash	[2]	4,798	(459)
Cash, Cash Equivalents and Restricted Cash at January 1	[2]	5,943	8,414
Cash, Cash Equivalents and Restricted Cash at September 30	[2]	$ 10,741	$ 7,955

[1] 2017 adjusted to conform to Accounting Standards Update 2016-15. Refer to Note 4, "Information Relating to the Consolidated Statement of Cash Flows" beginning on page 8.

[2] 2017 adjusted to conform to Accounting Standards Update 2016-18. Refer to Note 4, "Information Relating to the Consolidated Statement of Cash Flows" beginning on page 8.

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Interim Financial Statements

9 Months Ended

Sep. 30, 2018

Quarterly Financial Information Disclosure [Abstract]

Interim Financial Statements

Interim Financial Statements

The accompanying consolidated financial statements of Chevron Corporation and its subsidiaries (together, Chevron or the company) have not been audited by an independent registered public accounting firm. In the opinion of the company’s management, the interim data includes all adjustments necessary for a fair statement of the results for the interim periods. These adjustments were of a normal recurring nature. The results for the three- and nine-month periods ended September 30, 2018, are not necessarily indicative of future financial results. The term “earnings” is defined as net income attributable to Chevron.

Certain notes and other information have been condensed or omitted from the interim financial statements presented in this Quarterly Report on Form 10-Q. Therefore, these financial statements should be read in conjunction with the company’s 2017 Annual Report on Form 10-K.

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Changes in Accumulated Other Comprehensive Losses

9 Months Ended

Sep. 30, 2018

Equity [Abstract]

Changes in Accumulated Other Comprehensive Losses

Changes in Accumulated Other Comprehensive Losses

The change in Accumulated Other Comprehensive Losses (AOCL) presented on the Consolidated Balance Sheet and the impact of significant amounts reclassified from AOCL on information presented in the Consolidated Statement of Income for the nine months ended September 30, 2018, are reflected in the table below.

Changes in Accumulated Other Comprehensive Income (Loss) by Component ⁽¹⁾ 

	Nine Months Ended September 30, 2018
	Currency Translation Adjustment			Unrealized Holding Gains (Losses) on Securities			Derivatives			Defined Benefit Plans			Total
	(Millions of dollars)
Balance at January 1	$	(105	)	$	(5	)	$	(2	)	$	(3,477	)	$	(3,589	)
Components of Other Comprehensive Income (Loss):
Before Reclassifications	(12		)	(6		)	—			(53		)	(71		)
Reclassifications (2)	—			—			—			395			395
Net Other Comprehensive Income (Loss)	(12		)	(6		)	—			342			324
Balance at September 30	$	(117	)	$	(11	)	$	(2	)	$	(3,135	)	$	(3,265	)

________________________________

⁽¹⁾ All amounts are net of tax.

⁽²⁾ Refer to Note 11, Employee Benefits for reclassified components totaling $513 million that are included in employee benefit costs for the nine months ended September 30, 2018. Related income taxes for the same period, totaling $118 million, are reflected in "Income Tax Expense" on the Consolidated Statement of Income. All other reclassified amounts were insignificant.

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Noncontrolling Interests

9 Months Ended

Sep. 30, 2018

Noncontrolling Interest [Abstract]

Noncontrolling Interests

Noncontrolling Interests

Ownership interests in the company’s subsidiaries held by parties other than the parent are presented separately from the parent’s equity on the Consolidated Balance Sheet. The amount of consolidated net income attributable to the parent and the noncontrolling interests are both presented on the face of the Consolidated Statement of Income.

Activity for the equity attributable to noncontrolling interests for the first nine months of 2018 and 2017 is as follows:

	2018									2017
	Chevron Corporation Stockholders’ Equity			Non-controlling Interest			Total Equity			Chevron Corporation Stockholders’ Equity			Non-controlling Interest			Total Equity
	(Millions of dollars)
Balance at January 1	$	148,124		$	1,195		$	149,319		$	145,556		$	1,166		$	146,722
Net income	11,094			43			11,137			6,084			67			6,151
Dividends	(6,384		)	—			(6,384		)	(6,095		)	—			(6,095		)
Distributions to noncontrolling interests	—			(87		)	(87		)	—			(66		)	(66		)
Treasury shares, net	185			—			185			597			—			597
Other changes, net*	556			(53		)	503			571			31			602
Balance at September 30	$	153,575		$	1,098		$	154,673		$	146,713		$	1,198		$	147,911

 __________________________________________

* Includes components of comprehensive income, which are disclosed separately in the Consolidated Statement of Comprehensive Income.

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Information Relating to the Consolidated Statement of Cash Flows

9 Months Ended

Sep. 30, 2018

Supplemental Cash Flow Elements [Abstract]

Information Relating to the Consolidated Statement of Cash Flows

Information Relating to the Consolidated Statement of Cash Flows

The “Net decrease (increase) in operating working capital” was composed of the following operating changes:

	Nine Months Ended September 30
	2018			2017
	(Millions of dollars)
Decrease (increase) in accounts and notes receivable	$	(1,741	)	$	265
Decrease (increase) in inventories	(749		)	(436		)
Decrease (increase) in prepaid expenses and other current assets 1	(310		)	235
Increase (decrease) in accounts payable and accrued liabilities 1	887			(621		)
Increase (decrease) in income and other taxes payable	31			9
Net decrease (increase) in operating working capital 1	$	(1,882	)	$	(548	)
_____________________
1   2017 amount adjusted to conform to Accounting Standards Update 2016-18.

“Net Cash Provided by Operating Activities” included the following cash payments for interest on debt and for income taxes:

	Nine Months Ended September 30
	2018		2017
	(Millions of dollars)
Interest on debt (net of capitalized interest)	$	502	$	30
Income taxes	3,526		2,203

"Other" includes changes in postretirement benefits obligations and other long-term liabilities.

The “Net sales (purchases) of marketable securities” consisted of the following gross amounts:

	Nine Months Ended September 30
	2018			2017
	(Millions of dollars)
Marketable securities purchased	$	(51	)	$	(3	)
Marketable securities sold	—			3
Net sales (purchases) of marketable securities	$	(51	)	$	—

The “Net repayment (borrowing) of loans by equity affiliates” consisted of the following gross amounts:

	Nine Months Ended September 30
	2018		2017
	(Millions of dollars)
Borrowing of loans by equity affiliates	$	—	$	(142	)
Repayment of loans by equity affiliates	78		106
Net repayment (borrowing) of loans by equity affiliates	$	78	$	(36	)

The “Net borrowings (repayments) of short-term obligations" consisted of the following gross and net amounts:

	Nine Months Ended September 30
	2018			2017
	(Millions of dollars)
Repayments of short-term obligations	$	(3,379	)	$	(8,403	)
Proceeds from issuances of short-term obligations	2,452			3,415
Net borrowings (repayments) of short-term obligations with three months or less maturity	3,126			(2,197		)
Net borrowings (repayments) of short-term obligations	$	2,199		$	(7,185	)

The “Net sales of treasury shares” represents the value of shares sold for share-based compensation plans, net of purchases. Purchases totaled $751 million for the first nine months in 2018 and $1 million for the first nine months in 2017. During the first nine months in 2018, the company purchased 6.3 million shares under its share repurchase program for $750 million. No purchases were made under the company's share repurchase program in the first nine months of 2017.

The company paid dividends of $1.12 per share of common stock in third quarter 2018 and $3.36 per share in the first nine months of 2018. This compares to dividends of $1.08 and $3.24 per share paid in the corresponding year-ago periods.

The major components of “Capital expenditures” and the reconciliation of this amount to the capital and exploratory expenditures, including equity affiliates, are as follows:

	Nine Months Ended September 30
	2018		2017
	(Millions of dollars)
Additions to properties, plant and equipment	$	9,489	$	9,615
Additions to investments	36		16
Current year dry hole expenditures	276		131
Payments for other liabilities and assets, net	—		1
Capital expenditures	9,801		9,763
Expensed exploration expenditures	364		368
Assets acquired through capital lease obligations	65		3
Capital and exploratory expenditures, excluding equity affiliates	10,230		10,134
Company’s share of expenditures by equity affiliates	4,115		3,252
Capital and exploratory expenditures, including equity affiliates	$	14,345	$	13,386

On January 1, 2018, Chevron adopted Accounting Standards Updates (ASU) 2016-15 and 2016-18, which require retrospective adjustment of prior periods in the Statement of Cash Flows.

In addition to other requirements, ASU 2016-15 specifies new standards for the classification of distributions from equity affiliates. In adopting these new standards, Chevron utilized the cumulative earnings approach to evaluate returns on and returns of investment from equity affiliates. For the first nine months of 2017, a total of $162 million was reclassified from “Distributions less than income from equity affiliates” to “Proceeds and deposits related to asset sales and returns of investment.”

Adoption of ASU 2016-18 requires the inclusion of restricted cash and associated changes in restricted cash in the Consolidated Statement of Cash Flows. The impact of ASU 2016-18 is captured across several line items in the Statement of Cash Flows, including “Net decrease (increase) in operating working capital,” “Decrease (increase) in other deferred charges,” and “Proceeds and deposits related to asset sales and returns of investment” with associated net changes captured in both “Net Cash Provided by Operating Activities” and “Net Cash Used for Investing Activities.” The line item “Net sales (purchases) of other short-term investments” was removed in conjunction with the adoption of ASU 2016-18.

The table below quantifies the beginning and ending balances of restricted cash and restricted cash equivalents in the Consolidated Balance Sheet:

	At September 30				At December 31
	2018		2017		2017		2016
	(Millions of dollars)				(Millions of dollars)
Cash and Cash Equivalents	$	9,686	$	6,641	$	4,813	$	6,988
Restricted cash included in "Prepaid expenses and other current assets"	277		523		405		488
Restricted cash included in "Deferred charges and other assets"	778		791		725		938
Total Cash, Cash Equivalents and Restricted Cash	$	10,741	$	7,955	$	5,943	$	8,414

Additional information related to "Restricted Cash" is included on page 23 in Note 15 under the heading "Restricted Cash."

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New Accounting Standards

9 Months Ended

Sep. 30, 2018

New Accounting Pronouncements and Changes in Accounting Principles [Abstract]

New Accounting Standards

New Accounting Standards

Revenue Recognition (Topic 606): Revenue from Contracts with CustomersOn January 1, 2018, Chevron adopted ASU 2014-09 and its related amendments using the modified retrospective transition method, which did not require the restatement of prior periods. The impact of the adoption of the standard did not have a material effect on the company’s consolidated financial statements. For additional information on the company’s revenue, refer to Note 17 beginning on page 24.

Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash PaymentsEffective January 1, 2018, Chevron adopted ASU 2016-15 on a retrospective basis. The standard provides clarification on how certain cash receipts and cash payments are presented and classified on the Consolidated Statement of Cash Flows. The adoption of this ASU did not have a material impact on the company's Consolidated Statement of Cash Flows. For additional information, refer to Note 4 beginning on page 8.

Statement of Cash Flows (Topic 230): Restricted Cash Effective January 1, 2018, Chevron adopted ASU 2016-18 on a retrospective basis. The standard requires an entity to explain the changes in the total of cash, cash equivalents, restricted cash and restricted cash equivalents on the Consolidated Statement of Cash Flows and to provide a reconciliation to the Consolidated Balance Sheet when the cash, cash equivalents, restricted cash and restricted cash equivalents are not separately presented or are presented in more than one line item on the Consolidated Balance Sheet. The company’s restricted cash balances are now included in the beginning and ending balances on the Consolidated Statement of Cash Flows. For additional information, refer to Note 4 beginning on page 8.

Other Income - Gains and Losses from the Derecognition of Nonfinancial Assets (Subtopic 610-20)On January 1, 2018, the company adopted ASU 2017-05 which provides clarification regarding the guidance on accounting for the derecognition of nonfinancial assets. The adoption of the standard had no impact on the company’s consolidated financial statements.

Compensation - Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost Effective January 1, 2018, Chevron adopted ASU 2017-07 on a retrospective basis. The standard requires the disaggregation of the service cost component from the other components of net periodic benefit cost and allows only the service cost component of net benefit cost to be eligible for capitalization. The effects of retrospective adoption on the Consolidated Statement of Income for the nine-month period ended September 30, 2017 were to move $234 million from "Operating expenses" and $251 million from "Selling, general and administrative expenses" to "Other components of net periodic benefits cost."

Leases (Topic 842) In February 2016, the Financial Accounting Standards Board (FASB) issued ASU 2016-02 which becomes effective for the company January 1, 2019. The standard requires that lessees present right-of-use assets and lease liabilities on the balance sheet. The company plans to elect the short-term lease exception provided for in the standard and therefore will only recognize right-of-use assets and lease liabilities for leases with a term greater than one year. The company further intends to elect the option to apply the transition provisions of the new standard at the adoption date instead of the earliest comparative period presented in the financial statements. The company continues to focus its implementation efforts on accounting policy and disclosure updates and system implementation necessary to meet the standard's requirements. The company is continuing its review of contracts which may result in certain contracts, currently not classified as leases, being classified as operating leases under the new standard. The company does not expect the adoption of the ASU to have a material impact on finance leases, which are currently referred to as capital leases. The company estimates the operating lease right-of-use assets and lease liabilities to be recognized by the company on January 1, 2019 will be approximately $3 to $4 billion. The operating lease balance could change as contracts are executed, modified, renewed, or expired. The estimate could also be impacted by changes to interest and foreign exchange rates. The company expects the implementation of the standard will have a minimal impact on the Consolidated Statement of Income and Consolidated Statement of Cash Flows.

Income Statement - Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income In February 2018, the FASB issued ASU 2018-02, which becomes effective for the company January 1, 2019.  The standard permits companies to reclassify the residual tax effects in Accumulated Other Comprehensive Income as a result of tax reform to retained earnings and also requires additional new disclosures.  The company is evaluating the effect of the standard on its consolidated financial statements.

Financial Instruments - Credit Losses (Topic 326) In June 2016, the FASB issued ASU 2016-13, which becomes effective for the company beginning January 1, 2020. The standard requires companies to use forward-looking information to calculate credit loss estimates. The company is evaluating the effect of the standard on its consolidated financial statements.

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Assets Held For Sale

9 Months Ended

Sep. 30, 2018

Assets Held For Sale [Abstract]

Assets Held For Sale

Assets Held For Sale

At September 30, 2018, the company classified $983 million of net properties, plant and equipment as “Assets held for sale” on the Consolidated Balance Sheet. These assets are primarily associated with upstream operations that are anticipated to be sold in the next 12 months. The revenues and earnings contributions of these assets in 2017 and the first nine months of 2018 were not material.

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Operating Segments and Geographic Data

9 Months Ended

Sep. 30, 2018

Segment Reporting [Abstract]

Operating Segments and Geographic Data

Operating Segments and Geographic Data

Although each subsidiary of Chevron is responsible for its own affairs, Chevron Corporation manages its investments in these subsidiaries and their affiliates. The investments are grouped into two business segments, Upstream and Downstream, representing the company’s “reportable segments” and “operating segments.” Upstream operations consist primarily of exploring for, developing and producing crude oil and natural gas; liquefaction, transportation and regasification associated with liquefied natural gas (LNG); transporting crude oil by major international oil export pipelines; processing, transporting, storage and marketing of natural gas; and a gas-to-liquids plant. Downstream operations consist primarily of refining of crude oil into petroleum products; marketing of crude oil and refined products; transporting of crude oil and refined products by pipeline, marine vessel, motor equipment and rail car; and manufacturing and marketing of commodity petrochemicals, plastics for industrial uses, and fuel and lubricant additives. All Other activities of the company include worldwide cash management and debt financing activities, corporate administrative functions, insurance operations, real estate activities and technology companies.

The company’s segments are managed by “segment managers” who report to the “chief operating decision maker” (CODM). The segments represent components of the company that engage in activities (a) from which revenues are earned and expenses are incurred; (b) whose operating results are regularly reviewed by the CODM, which makes decisions about resources to be allocated to the segments and assesses their performance; and (c) for which discrete financial information is available.

The company’s primary country of operation is the United States of America, its country of domicile. Other components of the company’s operations are reported as “International” (outside the United States).

Segment Earnings The company evaluates the performance of its operating segments on an after-tax basis, without considering the effects of debt financing interest expense or investment interest income, both of which are managed by the company on a worldwide basis. Corporate administrative costs and assets are not allocated to the operating segments. However, operating segments are billed for the direct use of corporate services. Nonbillable costs remain at the corporate level in “All Other.” Earnings by major operating area for the three- and nine-month periods ended September 30, 2018 and 2017, are presented in the following table:

	Three Months Ended September 30						Nine Months Ended September 30
Segment Earnings	2018			2017			2018			2017
	(Millions of dollars)
Upstream
United States	$	828		$	(26	)	$	2,314		$	(48	)
International	2,551			515			7,712			2,907
Total Upstream	3,379			489			10,026			2,859
Downstream
United States	748			640			1,847			1,743
International	625			1,174			1,092			2,192
Total Downstream	1,373			1,814			2,939			3,935
Total Segment Earnings	4,752			2,303			12,965			6,794
All Other
Interest expense	(171		)	(30		)	(524		)	(115		)
Interest income	37			13			84			42
Other	(571		)	(334		)	(1,431		)	(637		)
Net Income Attributable to Chevron Corporation	$	4,047		$	1,952		$	11,094		$	6,084

Segment Assets Segment assets do not include intercompany investments or intercompany receivables. “All Other” assets consist primarily of worldwide cash, cash equivalents, time deposits and marketable securities; real estate; information systems; technology companies; and assets of the corporate administrative functions. Segment assets at September 30, 2018, and December 31, 2017, are as follows:

Segment Assets	At September 30 2018		At December 31 2017
	(Millions of dollars)
Upstream
United States	$	42,126	$	40,770
International	155,396		159,612
Goodwill	4,518		4,531
Total Upstream	202,040		204,913
Downstream
United States	24,141		23,202
International	17,628		17,434
Total Downstream	41,769		40,636
Total Segment Assets	243,809		245,549
All Other
United States	5,353		4,938
International	7,444		3,319
Total All Other	12,797		8,257
Total Assets — United States	71,620		68,910
Total Assets — International	180,468		180,365
Goodwill	4,518		4,531
Total Assets	$	256,606	$	253,806

Segment Sales and Other Operating Revenues Segment sales and other operating revenues, including internal transfers, for the three- and nine-month periods ended September 30, 2018 and 2017, are presented in the following table. Products are transferred between operating segments at internal product values that approximate market prices. Revenues for the upstream segment are derived primarily from the production and sale of crude oil and natural gas, as well as the sale of third-party production of natural gas. Revenues for the downstream segment are derived from the refining and marketing of petroleum products such as gasoline, jet fuel, gas oils, lubricants, residual fuel oils and other products derived from crude oil. This segment also generates revenues from the manufacture and sale of fuel and lubricant additives and the transportation and trading of refined products and crude oil. “All Other” activities include revenues from insurance operations, real estate activities and technology companies.

	Three Months Ended September 30						Nine Months Ended September 30
Sales and Other Operating Revenues	2018			2017			2018			2017
	(Millions of dollars)
Upstream
United States	$	6,784		$	3,245		$	16,405		$	9,620
International	10,312			7,191			27,848			20,624
Subtotal	17,096			10,436			44,253			30,244
Intersegment Elimination — United States	(4,277		)	(2,298		)	(10,219		)	(6,737		)
Intersegment Elimination — International	(4,045		)	(2,828		)	(10,681		)	(8,256		)
Total Upstream	8,774			5,310			23,353			15,251
Downstream *
United States	16,405			13,452			45,137			39,206
International	18,568			15,298			52,571			44,512
Subtotal	34,973			28,750			97,708			83,718
Intersegment Elimination — United States	(1,360		)	(5		)	(1,804		)	(11		)
Intersegment Elimination — International	(339		)	(216		)	(869		)	(818		)
Total Downstream	33,274			28,529			95,035			82,889
All Other
United States	264			260			759			773
International	6			6			16			19
Subtotal	270			266			775			792
Intersegment Elimination — United States	(207		)	(207		)	(583		)	(621		)
Intersegment Elimination — International	(6		)	(6		)	(16		)	(18		)
Total All Other	57			53			176			153
Sales and Other Operating Revenues
United States	23,454			16,957			62,302			49,599
International	28,885			22,495			80,434			65,155
Subtotal	52,339			39,452			142,736			114,754
Intersegment Elimination — United States	(5,844		)	(2,510		)	(12,606		)	(7,369		)
Intersegment Elimination — International	(4,390		)	(3,050		)	(11,566		)	(9,092		)
Total Sales and Other Operating Revenues	$	42,105		$	33,892		$	118,564		$	98,293
_____________________________
* The three-month and nine-month comparative periods ended September 30, 2017, include excise, value-added and similar taxes of $1,867 million and $5,315 million, respectively, collected on behalf of third parties. Beginning in 2018, these taxes are netted in "Taxes other than on income" in accordance with ASU 2014-09. Refer to Note 17, "Revenue" beginning on page 24.

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Summarized Financial Data - Chevron U.S.A. Inc.

9 Months Ended

Sep. 30, 2018

Summarized Financial Data of Subsidiary One [Abstract]

Summarized Financial Data - Chevron U.S.A. Inc.

Summarized Financial Data — Chevron U.S.A. Inc.

Chevron U.S.A. Inc. (CUSA) is a major subsidiary of Chevron Corporation. CUSA and its subsidiaries manage and operate most of Chevron’s U.S. businesses. Assets include those related to the exploration and production of crude oil, natural gas and natural gas liquids and those associated with refining, marketing, and supply and distribution of products derived from petroleum, excluding most of the regulated pipeline operations of Chevron. CUSA also holds the company’s investment in the Chevron Phillips Chemical Company LLC joint venture, which is accounted for using the equity method.

The summarized financial information for CUSA and its consolidated subsidiaries is as follows:

	Nine Months Ended September 30
	2018		2017
	(Millions of dollars)
Sales and other operating revenues*	$	93,434	$	75,759
Costs and other deductions*	90,912		75,403
Net income attributable to CUSA	2,929		1,315
_____________________________
* 2017 includes excise, value-added and similar taxes collected on behalf of third parties of $3,268 million. Beginning in   2018, these taxes are netted in "Taxes other than on income" in accordance with ASU 2014-09.

	At September 30 2018		At December 31 2017
	(Millions of dollars)
Current assets	$	15,036	$	12,163
Other assets	55,209		54,994
Current liabilities	18,329		17,379
Other liabilities	13,049		12,541
Total CUSA net equity	$	38,867	$	37,237
Memo: Total debt	$	3,049	$	3,056

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Summarized Financial Data - Tengizchevroil LLP

9 Months Ended

Sep. 30, 2018

Summarized Financial Data of Affiliate [Abstract]

Summarized Financial Data - Tengizchevroil LLP

Summarized Financial Data — Tengizchevroil LLP

Chevron has a 50 percent equity ownership interest in Tengizchevroil LLP (TCO). Summarized financial information for 100 percent of TCO is presented in the following table:

	Nine Months Ended September 30
	2018		2017
	(Millions of dollars)
Sales and other operating revenues	$	13,255	$	9,619
Costs and other deductions	5,780		4,806
Net income attributable to TCO	5,265		3,402

Summarized Financial Data — Chevron Phillips Chemical Company LLC

Chevron has a 50 percent equity ownership interest in Chevron Phillips Chemical Company LLC (CPChem). Summarized financial information for 100 percent of CPChem is presented in the table below:

	Nine Months Ended September 30
	2018		2017
	(Millions of dollars)
Sales and other operating revenues	$	8,773	$	6,816
Costs and other deductions	7,475		5,732
Net income attributable to CPChem	1,766		1,424

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Summarized Financial Data - Chevron Phillips Chemical Company LLC

9 Months Ended

Sep. 30, 2018

Summarized Financial Data of Subsidiary Two [Abstract]

Summarized Financial Data – Chevron Phillips Chemical Company LLC

Summarized Financial Data — Tengizchevroil LLP

Chevron has a 50 percent equity ownership interest in Tengizchevroil LLP (TCO). Summarized financial information for 100 percent of TCO is presented in the following table:

	Nine Months Ended September 30
	2018		2017
	(Millions of dollars)
Sales and other operating revenues	$	13,255	$	9,619
Costs and other deductions	5,780		4,806
Net income attributable to TCO	5,265		3,402

Summarized Financial Data — Chevron Phillips Chemical Company LLC

Chevron has a 50 percent equity ownership interest in Chevron Phillips Chemical Company LLC (CPChem). Summarized financial information for 100 percent of CPChem is presented in the table below:

	Nine Months Ended September 30
	2018		2017
	(Millions of dollars)
Sales and other operating revenues	$	8,773	$	6,816
Costs and other deductions	7,475		5,732
Net income attributable to CPChem	1,766		1,424

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Employee Benefits

9 Months Ended

Sep. 30, 2018

Retirement Benefits [Abstract]

Employee Benefits

Employee Benefits

Chevron has defined benefit pension plans for many employees. The company typically prefunds defined benefit plans as required by local regulations or in certain situations where prefunding provides economic advantages. In the United States, all qualified plans are subject to the Employee Retirement Income Security Act minimum funding standard. The company does not typically fund U.S. nonqualified pension plans that are not subject to funding requirements under laws and regulations because contributions to these pension plans may be less economic and investment returns may be less attractive than the company’s other investment alternatives.

The company also sponsors other postretirement employee benefit (OPEB) plans that provide medical and dental benefits, as well as life insurance for some active and qualifying retired employees. The plans are unfunded, and the company and the retirees share the costs. For the company’s main U.S. medical plan, the increase to the

pre-Medicare company contribution for retiree medical coverage is limited to no more than 4 percent each year. Certain life insurance benefits are paid by the company.

The components of net periodic benefit costs for 2018 and 2017 are as follows:

	Three Months Ended September 30						Nine Months Ended September 30
	2018			2017			2018			2017
	(Millions of dollars)
Pension Benefits
United States
Service cost	$	120		$	122		$	360		$	366
Interest cost	93			91			278			274
Expected return on plan assets	(159		)	(149		)	(477		)	(447		)
Amortization of prior service costs (credits)	—			(1		)	1			(3		)
Amortization of actuarial losses (gains)	76			85			228			255
Settlement losses	128			169			260			325
Total United States	258			317			650			770
International
Service cost	36			38			109			114
Interest cost	49			54			155			164
Expected return on plan assets	(62		)	(61		)	(193		)	(178		)
Amortization of prior service costs (credits)	2			3			8			9
Amortization of actuarial losses (gains)	6			11			23			33
Curtailment losses	3			—			3			—
Total International	34			45			105			142
Net Periodic Pension Benefit Costs	$	292		$	362		$	755		$	912
Other Benefits*
Service cost	$	10		$	8		$	31		$	24
Interest cost	24			23			72			71
Amortization of prior service costs (credits)	(7		)	(7		)	(21		)	(21		)
Amortization of actuarial losses (gains)	4			(1		)	11			(4		)
Net Periodic Other Benefit Costs	$	31		$	23		$	93		$	70

_ ___________________________________

* Includes costs for U.S. and international OPEB plans. Obligations for plans outside the United States are not significant relative to the company’s total OPEB obligation.

Through September 30, 2018, a total of $941 million was contributed to employee pension plans (including $788 million to the U.S. plans). Total contributions for the full year are currently estimated to be $1.05 billion ($800 million for the U.S. plans and $250 million for the international plans). Actual contribution amounts are dependent upon plan investment returns, changes in pension obligations, regulatory requirements and other economic factors. Additional funding may ultimately be required if investment returns are insufficient to offset increases in plan obligations.

During the first nine months of 2018, the company contributed $125 million to its OPEB plans. The company anticipates contributing approximately $50 million during fourth quarter 2018.

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Income Taxes

9 Months Ended

Sep. 30, 2018

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

The increase in income tax expense between quarterly periods of $971 million, from $672 million in 2017 to $1.64 billion in 2018, is a result of the year-over-year increase in total income before income tax expense, which is primarily due to effects of higher crude oil prices and higher production. The company’s effective tax rate changed between periods from 25 percent in 2017 to 29 percent in 2018. The change in effective tax rate is primarily a consequence of the mix effect resulting from the absolute level of earnings or losses and whether they arose in higher or lower tax rate jurisdictions.

The increase in income tax expense for the nine months of $2.95 billion, from $1.59 billion in 2017 to $4.54 billion in 2018, is a result of the year-over-year increase in total income before income tax expense, which is primarily due to effects of higher crude oil prices and higher production. The company’s effective tax rate changed between periods from 21 percent in 2017 to 29 percent in 2018. The change in effective tax rate is primarily a consequence of the mix effect resulting from the absolute level of earnings or losses and whether they arose in higher or lower tax rate jurisdictions.

U.S. tax reform resulted in the remeasurement of U.S. deferred tax assets and liabilities in 2017. The company's U.S. tax return was prepared and filed in the quarter ended September 30, 2018, and did not result in any material change to the provisional amounts that were recognized in 2017. Further proposed regulations are expected to be issued later in 2018 which may result in a change to the provisional amounts that were recognized in 2017.

Tax positions for Chevron and its subsidiaries and affiliates are subject to income tax audits by many tax jurisdictions throughout the world. For the company’s major tax jurisdictions, examinations of tax returns for certain prior tax years had not been completed as of September 30, 2018. For these jurisdictions, the latest years for which income tax examinations had been finalized were as follows: United States — 2011, Nigeria — 2000, Australia — 2006 and Kazakhstan — 2007.

The company engages in ongoing discussions with tax authorities regarding the resolution of tax matters in the various jurisdictions. Both the outcomes for these tax matters and the timing of resolution and/or closure of the tax audits are highly uncertain. However, it is reasonably possible that developments regarding tax matters in certain tax jurisdictions may result in significant increases or decreases in the company’s total unrecognized tax benefits within the next 12 months. Given the number of years that still remain subject to examination and the number of matters being examined in the various tax jurisdictions, the company is unable to estimate the range of possible adjustments to the balance of unrecognized tax benefits.

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Litigation

9 Months Ended

Sep. 30, 2018

Commitments and Contingencies Disclosure [Abstract]

Litigation

Litigation

MTBE

Chevron and many other companies in the petroleum industry have used methyl tertiary butyl ether (MTBE) as a gasoline additive. Chevron is a party to eight pending lawsuits and claims, the majority of which involve numerous other petroleum marketers and refiners. Resolution of these lawsuits and claims may ultimately require the company to correct or ameliorate the alleged effects on the environment of prior release of MTBE by the company or other parties. Additional lawsuits and claims related to the use of MTBE, including personal-injury claims, may be filed in the future. The company’s ultimate exposure related to pending lawsuits and claims is not determinable. The company no longer uses MTBE in the manufacture of gasoline in the United States.

Ecuador

Background Chevron is a defendant in a civil lawsuit initiated in the Superior Court of Nueva Loja in Lago Agrio, Ecuador, in May 2003 by plaintiffs who claim to be representatives of certain residents of an area where an oil production consortium formerly had operations. The lawsuit alleges damage to the environment from the oil exploration and production operations and seeks unspecified damages to fund environmental remediation and restoration of the alleged environmental harm, plus a health monitoring program. Until 1992, Texaco Petroleum Company (Texpet), a subsidiary of Texaco Inc., was a minority member of this consortium with Petroecuador, the Ecuadorian state-owned oil company, as the majority partner; since 1990, the operations have been conducted solely by Petroecuador. At the conclusion of the consortium and following an independent third-party environmental audit of the concession area, Texpet entered into a formal agreement with the Republic of Ecuador and Petroecuador for Texpet to remediate specific sites assigned by the government in proportion to Texpet’s ownership share of the consortium. Pursuant to that agreement, Texpet conducted a three-year remediation program at a cost of $40 million. After certifying that the sites were properly remediated, the government granted Texpet and all related corporate entities a full release from any and all environmental liability arising from the consortium operations.

Based on the history described above, Chevron believes that this lawsuit lacks legal or factual merit. As to matters of law, the company believes first, that the court lacks jurisdiction over Chevron; second, that the law under which plaintiffs bring the action, enacted in 1999, cannot be applied retroactively; third, that the claims are barred by the statute of limitations in Ecuador; and, fourth, that the lawsuit is also barred by the releases from liability previously given to Texpet by the Republic of Ecuador and Petroecuador and by the pertinent provincial

and municipal governments. With regard to the facts, the company believes that the evidence confirms that Texpet’s remediation was properly conducted and that the remaining environmental damage reflects Petroecuador’s failure to timely fulfill its legal obligations and Petroecuador’s further conduct since assuming full control over the operations.

Lago Agrio Judgment In 2008, a mining engineer appointed by the court to identify and determine the cause of environmental damage, and to specify steps needed to remediate it, issued a report recommending that the court assess $18.9 billion, which would, according to the engineer, provide financial compensation for purported damages, including wrongful death claims, and pay for, among other items, environmental remediation, health care systems and additional infrastructure for Petroecuador. The engineer’s report also asserted that an additional $8.4 billion could be assessed against Chevron for unjust enrichment. In 2009, following the disclosure by Chevron of evidence that the judge participated in meetings in which businesspeople and individuals holding themselves out as government officials discussed the case and its likely outcome, the judge presiding over the case was recused. In 2010, Chevron moved to strike the mining engineer’s report and to dismiss the case based on evidence obtained through discovery in the United States indicating that the report was prepared by consultants for the plaintiffs before being presented as the mining engineer’s independent and impartial work and showing further evidence of misconduct. In August 2010, the judge issued an order stating that he was not bound by the mining engineer’s report and requiring the parties to provide their positions on damages within 45 days. Chevron subsequently petitioned for recusal of the judge, claiming that he had disregarded evidence of fraud and misconduct and that he had failed to rule on a number of motions within the statutory time requirement.

In September 2010, Chevron submitted its position on damages, asserting that no amount should be assessed against it. The plaintiffs’ submission, which relied in part on the mining engineer’s report, took the position that damages are between approximately $16 billion and $76 billion and that unjust enrichment should be assessed in an amount between approximately $5 billion and $38 billion. The next day, the judge issued an order closing the evidentiary phase of the case and notifying the parties that he had requested the case file so that he could prepare a judgment. Chevron petitioned to have that order declared a nullity in light of Chevron’s prior recusal petition, and because procedural and evidentiary matters remained unresolved. In October 2010, Chevron’s motion to recuse the judge was granted. A new judge took charge of the case and revoked the prior judge’s order closing the evidentiary phase of the case. On December 17, 2010, the judge issued an order closing the evidentiary phase of the case and notifying the parties that he had requested the case file so that he could prepare a judgment.

On February 14, 2011, the provincial court in Lago Agrio rendered an adverse judgment in the case. The court rejected Chevron’s defenses to the extent the court addressed them in its opinion. The judgment assessed approximately $8.6 billion in damages and approximately $900 million as an award for the plaintiffs’ representatives. It also assessed an additional amount of approximately $8.6 billion in punitive damages unless the company issued a public apology within 15 days of the judgment, which Chevron did not do. On February 17, 2011, the plaintiffs appealed the judgment, seeking increased damages, and on March 11, 2011, Chevron appealed the judgment seeking to have the judgment nullified. On January 3, 2012, an appellate panel in the provincial court affirmed the February 14, 2011 decision and ordered that Chevron pay additional attorneys’ fees in the amount of “0.10% of the values that are derived from the decisional act of this judgment.” The plaintiffs filed a petition to clarify and amplify the appellate decision on January 6, 2012, and the court issued a ruling in response on January 13, 2012, purporting to clarify and amplify its January 3, 2012 ruling, which included clarification that the deadline for the company to issue a public apology to avoid the additional amount of approximately $8.6 billion in punitive damages was within 15 days of the clarification ruling, or February 3, 2012. Chevron did not issue an apology because doing so might be mischaracterized as an admission of liability and would be contrary to facts and evidence submitted at trial. On January 20, 2012, Chevron appealed (called a petition for cassation) the appellate panel’s decision to Ecuador’s National Court of Justice. As part of the appeal, Chevron requested the suspension of any requirement that Chevron post a bond to prevent enforcement under Ecuadorian law of the judgment during the cassation appeal. On February 17, 2012, the appellate panel of the provincial court admitted Chevron’s cassation appeal in a procedural step necessary for the National Court of Justice to hear the appeal. The provincial court appellate panel denied Chevron’s request for suspension of the requirement that Chevron post a bond and stated that it would not comply with the First and Second Interim Awards of the international arbitration tribunal discussed below. On March 29, 2012, the matter was transferred from the provincial court to the National Court of Justice, and on November 22, 2012, the National Court agreed to hear Chevron's cassation appeal. On August 3, 2012, the provincial court in Lago Agrio approved a court-appointed liquidator’s report on damages that calculated the total judgment in the case to be $19.1 billion. On November 13, 2013, the National Court ratified the judgment but nullified the $8.6 billion punitive damage assessment, resulting in a judgment of $9.5 billion. On December 23, 2013, Chevron appealed the decision to the Ecuador Constitutional Court, Ecuador's highest court. The reporting justice of the Constitutional Court heard oral arguments on the appeal on July 16, 2015. On July 10, 2018, Ecuador's Constitutional Court released a decision rejecting Chevron's appeal, which sought to nullify the National Court of Justice's judgment against Chevron. No further appeals are available.

Lago Agrio Plaintiffs' Enforcement Actions Chevron has no assets in Ecuador and the Lago Agrio plaintiffs’ lawyers have stated in press releases and through other media that they will seek to enforce the Ecuadorian judgment in various countries and otherwise disrupt Chevron’s operations. On May 30, 2012, the Lago Agrio plaintiffs filed an action against Chevron Corporation, Chevron Canada Limited, and Chevron Canada Finance Limited in the Ontario Superior Court of Justice in Ontario, Canada, seeking to recognize and enforce the Ecuadorian judgment. On May 1, 2013, the Ontario Superior Court of Justice held that the Court has jurisdiction over Chevron and Chevron Canada Limited for purposes of the action, but stayed the action due to the absence of evidence that Chevron Corporation has assets in Ontario. The Lago Agrio plaintiffs appealed that decision and, on December 17, 2013, the Court of Appeal for Ontario affirmed the lower court’s decision on jurisdiction and set aside the stay, allowing the recognition and enforcement action to be heard in the Ontario Superior Court of Justice. Chevron appealed the decision to the Supreme Court of Canada and, on September 4, 2015, the Supreme Court dismissed the appeal and affirmed that the Ontario Superior Court of Justice has jurisdiction over Chevron and Chevron Canada Limited for purposes of the action. The recognition and enforcement proceeding and related preliminary motions are proceeding in the Ontario Superior Court of Justice. On January 20, 2017, the Ontario Superior Court of Justice granted Chevron Canada Limited’s and Chevron Corporation’s motions for summary judgment, concluding that the two companies are separate legal entities with separate rights and obligations. As a result, the Superior Court dismissed the recognition and enforcement claim against Chevron Canada Limited.  Chevron Corporation still remains as a defendant in the action. On February 3, 2017, the Lago Agrio plaintiffs appealed the Superior Court's January 20, 2017 decision. On May 24, 2018, the Court of Appeal for Ontario upheld the Superior Court’s grant of Chevron Canada Limited’s and Chevron Corporation’s motions for summary judgment based on corporate separateness grounds and the dismissal of Chevron Canada Limited from the case. On June 22, 2018, the Lago Agrio plaintiffs filed leave to appeal the decision of the Court of Appeal for Ontario to the Supreme Court of Canada.

On June 27, 2012, the Lago Agrio plaintiffs filed a complaint against Chevron Corporation in the Superior Court of Justice in Brasilia, Brazil, seeking to recognize and enforce the Ecuadorian judgment. Chevron has answered the complaint. In accordance with Brazilian procedure, the matter was referred to the public prosecutor for a nonbinding opinion of the issues raised in the complaint. On May 13, 2015, the public prosecutor issued its nonbinding opinion and recommended that the Superior Court of Justice reject the plaintiffs’ recognition and enforcement request, finding, among other things, that the Lago Agrio judgment was procured through fraud and corruption and cannot be recognized in Brazil because it violates Brazilian and international public order. On November 29, 2017, the Superior Court of Justice issued a decision dismissing the Lago Agrio plaintiffs’ recognition and enforcement proceeding based on jurisdictional grounds. On June 15, 2018, this decision became a final judgment in Brazil. No further appeals are available.

On October 15, 2012, the provincial court in Lago Agrio issued an ex parte embargo order that purports to order the seizure of assets belonging to separate Chevron subsidiaries in Ecuador, Argentina and Colombia. On November 6, 2012, at the request of the Lago Agrio plaintiffs, a court in Argentina issued a Freeze Order against Chevron Argentina S.R.L. and another Chevron subsidiary, Ingeniero Norberto Priu, requiring shares of both companies to be "embargoed," requiring third parties to withhold 40 percent of any payments due to Chevron Argentina S.R.L. and ordering banks to withhold 40 percent of the funds in Chevron Argentina S.R.L. bank accounts. On December 14, 2012, the Argentinean court rejected a motion to revoke the Freeze Order but modified it by ordering that third parties are not required to withhold funds but must report their payments. The court also clarified that the Freeze Order relating to bank accounts excludes taxes. On January 30, 2013, an appellate court upheld the Freeze Order, but on June 4, 2013, the Supreme Court of Argentina revoked the Freeze Order in its entirety. On December 12, 2013, the Lago Agrio plaintiffs served Chevron with notice of their filing of an enforcement proceeding in the National Court, First Instance, of Argentina. Chevron filed its answer on February 27, 2014 to which the Lago Agrio plaintiffs responded on December 29, 2015. On April 19, 2016, the public prosecutor in Argentina issued a non-binding opinion recommending to the National Court, First Instance, of Argentina that it reject the Lago Agrio plaintiffs' request to recognize the Ecuadorian judgment in Argentina. On February 24, 2017, the public prosecutor in Argentina issued a supplemental opinion reaffirming its previous recommendations. On November 1, 2017, the National Court, First Instance, of Argentina issued a decision dismissing the Lago Agrio plaintiffs' recognition and enforcement proceeding based on jurisdictional grounds. On November 2, 2017, the Lago Agrio plaintiffs appealed this decision to the Federal Civil Court of Appeals. On July 3, 2018, the Federal Civil Court of Appeals affirmed the National Court, First Instance’s, dismissal of the Lago Agrio plaintiffs’ recognition and enforcement action based on jurisdictional grounds. On October 5, 2018, the Federal Civil Court of Appeals granted, in part, the admissibility of the Lago Agrio Plaintiffs’ appeal to the Supreme Court of Argentina.

Chevron continues to believe the provincial court’s judgment is illegitimate and unenforceable in Ecuador, the United States and other countries. The company also believes the judgment is the product of fraud and contrary to the legitimate scientific evidence. Chevron cannot predict the timing or ultimate outcome of any enforcement action. Chevron expects to continue a vigorous defense of any imposition of liability and to contest and defend any and all enforcement actions.

Company's Bilateral Investment Treaty Arbitration Claims Chevron and Texpet filed an arbitration claim in September 2009 against the Republic of Ecuador before an arbitral tribunal presiding in the Permanent Court of Arbitration in The Hague under the Rules of the United Nations Commission on International Trade Law. The claim alleges violations of the Republic of Ecuador’s obligations under the United States–Ecuador Bilateral Investment Treaty (BIT) and breaches of the settlement and release agreements between the Republic of Ecuador and Texpet (described above), which are investment agreements protected by the BIT. Through the arbitration, Chevron and Texpet are seeking relief against the Republic of Ecuador, including a declaration that any judgment against Chevron in the Lago Agrio litigation constitutes a violation of Ecuador’s obligations under the BIT. On January 25, 2012, the Tribunal issued its First Interim Measures Award requiring the Republic of Ecuador to take all measures at its disposal to suspend or cause to be suspended the enforcement or recognition within and outside of Ecuador of any judgment against Chevron in the Lago Agrio case pending further order of the Tribunal. On February 16, 2012, the Tribunal issued a Second Interim Award mandating that the Republic of Ecuador take all measures necessary (whether by its judicial, legislative or executive branches) to suspend or cause to be suspended the enforcement and recognition within and outside of Ecuador of the judgment against Chevron. On February 27, 2012, the Tribunal issued a Third Interim Award confirming its jurisdiction to hear Chevron's arbitration claims. On February 7, 2013, the Tribunal issued its Fourth Interim Award in which it declared that the Republic of Ecuador “has violated the First and Second Interim Awards under the [BIT], the UNCITRAL Rules and international law in regard to the finalization and enforcement subject to execution of the Lago Agrio Judgment within and outside Ecuador, including (but not limited to) Canada, Brazil and Argentina.” The Republic of Ecuador subsequently filed in the District Court of the Hague a request to set aside the Tribunal’s Interim Awards and the First Partial Award (described below), and on January 20, 2016, the District Court denied the Republic's request. On April 13, 2016, the Republic of Ecuador appealed the decision. On July 18, 2017, the Appeals Court of the Hague denied the Republic's appeal. On October 18, 2017, the Republic appealed the decision of the Appeals Court of the Hague to the Supreme Court of the Netherlands.

The Tribunal has divided the merits phase of the proceeding into three phases. On September 17, 2013, the Tribunal issued its First Partial Award from Phase One, finding that the settlement agreements between the Republic of Ecuador and Texpet applied to Texpet and Chevron, released Texpet and Chevron from claims based on "collective" or "diffuse" rights arising from Texpet's operations in the former concession area and precluded third parties from asserting collective/diffuse rights environmental claims relating to Texpet's operations in the former concession area but did not preclude individual claims for personal harm. The Tribunal held a hearing on April 29-30, 2014, to address remaining issues relating to Phase One, and on March 12, 2015, it issued a nonbinding decision that the Lago Agrio plaintiffs' complaint, on its face, includes claims not barred by the settlement agreement between the Republic of Ecuador and Texpet. In the same decision, the Tribunal deferred to Phase Two remaining issues from Phase One, including whether the Republic of Ecuador breached the 1995 settlement agreement and the remedies that are available to Chevron and Texpet as a result of that breach. Phase Two issues were addressed at a hearing held in April and May 2015.

On August 30, 2018, the Tribunal issued its Phase Two award in favor of Chevron and Texpet. The Tribunal unanimously held that the Ecuadorian judgment was procured through fraud, bribery and corruption and was based on claims that the Republic of Ecuador had settled and released in the mid-1990s, concluding that the Ecuadorian judgment “violates international public policy” and “should not be recognized or enforced by the courts of other States.” Specifically, the Tribunal found that (i) the Republic of Ecuador breached its obligations under the 1995 and 1998 settlement agreements releasing Texpet and its affiliates from public environmental claims (the same claims on which the Ecuadorian judgment was exclusively based) and (ii) the Republic of Ecuador committed a denial of justice under customary international law and under the fair and equitable treatment provision of the BIT due to the fraud and corruption in the Lago Agrio litigation. Among other things, the Tribunal ordered the Republic of Ecuador to: (a) take immediate steps to remove the status of enforceability from the Ecuadorian judgment; (b) promptly advise in writing any State where the Lago Agrio Plaintiffs may be seeking the enforcement or recognition of the Ecuadorian judgment of the Tribunal’s declarations, orders and awards; (c) take measures to “wipe out all the consequences” of Ecuador's "internationally wrongful acts in regard to the Ecuadorian judgment;" and (d) compensate Chevron for any injuries resulting from the Ecuadorian judgment. The Tribunal has not set a date for Phase Three, the third and final phase of the arbitration, at which damages for Chevron's injuries will be determined.

Company's RICO Action Through a series of U.S. court proceedings initiated by Chevron to obtain discovery relating to the Lago Agrio litigation and the BIT arbitration, Chevron obtained evidence that it believes shows a pattern of fraud, collusion, corruption, and other misconduct on the part of several lawyers, consultants and others acting for the Lago Agrio plaintiffs. In February 2011, Chevron filed a civil lawsuit in the Federal District Court for the Southern District of New York against the Lago Agrio plaintiffs and several of their lawyers, consultants and supporters, alleging violations of the Racketeer Influenced and Corrupt Organizations Act and other state laws. Through the civil lawsuit, Chevron sought relief that included a declaration that any judgment against Chevron in the Lago Agrio litigation is the result of fraud and other unlawful conduct and is therefore unenforceable. The trial commenced on October 15, 2013 and concluded on November 22, 2013. On March 4, 2014, the Federal District Court entered a judgment in favor of Chevron, prohibiting the defendants from seeking to enforce the Lago Agrio judgment in the United States and further prohibiting them from profiting from their illegal acts. The defendants appealed the Federal District Court's decision, and, on April 20, 2015, a panel of the U.S. Court of Appeals for the Second Circuit heard oral arguments. On August 8, 2016, the Second Circuit issued a unanimous opinion affirming in full the judgment of the Federal District Court in favor of Chevron. On October 27, 2016, the Second Circuit denied the defendants' petitions for en banc rehearing of the opinion on their appeal. On March 27, 2017, two of the defendants filed a petition for a Writ of Certiorari to the United States Supreme Court. On June 19, 2017, the United States Supreme Court denied the defendants' petition for a Writ of Certiorari.

Management's Assessment The ultimate outcome of the foregoing matters, including any financial effect on Chevron, remains uncertain. Management does not believe an estimate of a reasonably possible loss (or a range of loss) can be made in this case. Due to the defects associated with the Ecuadorian judgment, the 2008 engineer’s report on alleged damages and the September 2010 plaintiffs’ submission on alleged damages, management does not believe these documents have any utility in calculating a reasonably possible loss (or a range of loss). Moreover, the highly uncertain legal environment surrounding the case provides no basis for management to estimate a reasonably possible loss (or a range of loss).

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Other Contingencies and Commitments

9 Months Ended

Sep. 30, 2018

Commitments and Contingencies Disclosure [Abstract]

Other Contingencies and Commitments

Other Contingencies and Commitments

Income Taxes The company calculates its income tax expense and liabilities quarterly. These liabilities generally are subject to audit and are not finalized with the individual taxing authorities until several years after the end of the annual period for which income taxes have been calculated. Refer to Note 12 on page 16 for a discussion of the periods for which tax returns have been audited for the company’s major tax jurisdictions.

Settlement of open tax years, as well as other tax issues in countries where the company conducts its businesses, are not expected to have a material effect on the consolidated financial position or liquidity of the company and, in the opinion of management, adequate provision has been made for income taxes for all years under examination or subject to future examination.

Guarantees The company and its subsidiaries have certain contingent liabilities with respect to guarantees, direct or indirect, of debt of affiliated companies or third parties. Under the terms of the guarantee arrangements, the company would generally be required to perform should the affiliated company or third party fail to fulfill its obligations under the arrangements. In some cases, the guarantee arrangements may have recourse provisions that would enable the company to recover any payments made under the terms of the guarantees from assets provided as collateral.

Indemnifications In the acquisition of Unocal, the company assumed certain indemnities relating to contingent environmental liabilities associated with assets that were sold in 1997. The acquirer of those assets shared in certain environmental remediation costs up to a maximum obligation of $200 million, which had been reached at December 31, 2009. Under the indemnification agreement, after reaching the $200 million obligation, Chevron is solely responsible until April 2022, when the indemnification expires. The environmental conditions or events that are subject to these indemnities must have arisen prior to the sale of the assets in 1997.

Although the company has provided for known obligations under this indemnity that are probable and reasonably estimable, the amount of additional future costs may be material to results of operations in the period in which they are recognized. The company does not expect these costs will have a material effect on its consolidated financial position or liquidity.

Off-Balance-Sheet Obligations The company and its subsidiaries have certain contingent liabilities with respect to long-term unconditional purchase obligations and commitments, including throughput and take-or-pay agreements, some of which relate to suppliers’ financing arrangements. The agreements typically provide goods and services, such as pipeline and storage capacity, drill ships, utilities, and petroleum products, to be used or sold in the ordinary course of the company’s business.

Environmental The company is subject to loss contingencies pursuant to laws, regulations, private claims and legal proceedings related to environmental matters that are subject to legal settlements or that in the future may require the company to take action to correct or ameliorate the effects on the environment of prior release of chemicals or petroleum substances, including MTBE, by the company or other parties. Such contingencies may exist for various sites, including, but not limited to, federal Superfund sites and analogous sites under state laws, refineries, crude oil fields, service stations, terminals, land development areas, and mining activities, whether operating, closed or divested. These future costs are not fully determinable due to factors such as the unknown magnitude of possible contamination, the unknown timing and extent of the corrective actions that may be required, the determination of the company’s liability in proportion to other responsible parties, and the extent to which such costs are recoverable from third parties.

Although the company has provided for known environmental obligations that are probable and reasonably estimable, the amount of additional future costs may be material to results of operations in the period in which they are recognized. The company does not expect these costs will have a material effect on its consolidated financial position or liquidity. Also, the company does not believe its obligations to make such expenditures have had, or will have, any significant impact on the company’s competitive position relative to other U.S. or international petroleum or chemical companies.

Other Contingencies Governmental entities in California and other jurisdictions have filed legal proceedings against fossil fuel producing companies, including Chevron, purporting to seek legal and equitable relief to address alleged impacts of climate change. Further such proceedings are likely to be filed by other parties. The unprecedented legal theories set forth in these proceedings entail the possibility of damages liability and injunctions against the production of all fossil fuels that, while we believe remote, could have a material adverse effect on the Company’s results of operations and financial condition. Management believes that these proceedings are legally and factually meritless and detract from constructive efforts to address the important policy issues presented by climate change, and will vigorously defend against such proceedings.

Chevron receives claims from and submits claims to customers; trading partners; joint venture partners; U.S. federal, state and local regulatory bodies; governments; contractors; insurers; suppliers; and individuals. The amounts of these claims, individually and in the aggregate, may be significant and take lengthy periods to resolve, and may result in gains or losses in future periods.

The company and its affiliates also continue to review and analyze their operations and may close, abandon, sell, exchange, acquire or restructure assets to achieve operational or strategic benefits and to improve competitiveness and profitability. These activities, individually or together, may result in significant gains or losses in future periods.

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Fair Value Measurements

9 Months Ended

Sep. 30, 2018

Fair Value Disclosures [Abstract]

Fair Value Measurements

Fair Value Measurements

The three levels of the fair value hierarchy of inputs the company uses to measure the fair value of an asset or liability are described as follows:

Level 1: Quoted prices (unadjusted) in active markets for identical assets and liabilities. For the company, Level 1 inputs include exchange-traded futures contracts for which the parties are willing to transact at the exchange-quoted price and marketable securities that are actively traded.

Level 2: Inputs other than Level 1 that are observable, either directly or indirectly. For the company, Level 2 inputs include quoted prices for similar assets or liabilities, prices obtained through third-party broker quotes and prices that can be corroborated with other observable inputs for substantially the complete term of a contract.

Level 3: Unobservable inputs. The company does not use Level 3 inputs for any of its recurring fair value measurements. Level 3 inputs may be required for the determination of fair value associated with certain nonrecurring measurements of nonfinancial assets and liabilities.

The fair value hierarchy for assets and liabilities measured at fair value on a recurring basis at September 30, 2018, and December 31, 2017, is as follows:

Assets and Liabilities Measured at Fair Value on a Recurring Basis

(Millions of dollars)

	At September 30, 2018								At December 31, 2017
	Total		Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3
Marketable Securities	$	60	$	60	$	—	$	—	$	9	$	9	$	—	$	—
Derivatives	16		1		15		—		22		—		22		—
Total Assets at Fair Value	$	76	$	61	$	15	$	—	$	31	$	9	$	22	$	—
Derivatives	84		52		32		—		124		78		46		—
Total Liabilities at Fair Value	$	84	$	52	$	32	$	—	$	124	$	78	$	46	$	—

Marketable Securities The company calculates fair value for its marketable securities based on quoted market prices for identical assets. The fair values reflect the cash that would have been received if the instruments were sold at September 30, 2018.

Derivatives The company records its derivative instruments — other than any commodity derivative contracts that are designated as normal purchase and normal sale — on the Consolidated Balance Sheet at fair value, with the offsetting amount to the Consolidated Statement of Income. Derivatives classified as Level 1 include futures, swaps and options contracts traded in active markets such as the New York Mercantile Exchange. Derivatives classified as Level 2 include swaps, options and forward contracts principally with financial institutions and other oil and gas companies, the fair values of which are obtained from third-party broker quotes, industry pricing services and exchanges. The company obtains multiple sources of pricing information for the Level 2 instruments. Since this pricing information is generated from observable market data, it has historically been very consistent. The company does not materially adjust this information.

Assets carried at fair value at September 30, 2018, and December 31, 2017, are as follows:

Cash and Cash Equivalents The company holds cash equivalents in U.S. and non-U.S. portfolios. The instruments classified as cash equivalents are primarily bank time deposits with maturities of 90 days or less, and money market funds. “Cash and cash equivalents” had carrying/fair values of $9.7 billion and $4.8 billion at September 30, 2018, and December 31, 2017, respectively. The fair values of cash and cash equivalents are classified as Level 1 and reflect the cash that would have been received if the instruments were settled at September 30, 2018.

Restricted Cash had a carrying/fair value of $1.1 billion and $1.1 billion at September 30, 2018, and December 31, 2017, respectively. At September 30, 2018, restricted cash is classified as Level 1 and includes restricted funds related to certain upstream abandonment activities and a financing program, which are reported in "Prepaid expenses and other current assets" and “Deferred charges and other assets” on the Consolidated Balance Sheet.

Long-Term Debt had a net carrying value, excluding amounts reclassified from short-term, of $19.9 billion and $23.5 billion at September 30, 2018, and December 31, 2017, respectively. The fair value of long-term debt at September 30, 2018, and December 31, 2017 was $19.8 billion and $23.9 billion, respectively. Long-term debt primarily includes corporate issued bonds. The fair value of corporate bonds classified as Level 1 is $19.0 billion. The fair value of other long-term debt classified as Level 2 is $0.8 billion.

The carrying values of other short-term financial assets and liabilities on the Consolidated Balance Sheet approximate their fair values. Fair value remeasurements of other financial instruments at September 30, 2018, and December 31, 2017, were not material.

The fair value hierarchy for assets and liabilities measured at fair value on a nonrecurring basis at September 30, 2018, is as follows:

Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis

(Millions of dollars)

	At September 30, 2018
									Before-Tax Loss
	Total		Level 1		Level 2		Level 3		Three Months Ended		Nine Months Ended
Properties, plant and equipment, net (held and used)	$	—	$	—	$	—	$	—	$	—	$	—
Properties, plant and equipment, net (held for sale)	212		—		—		212		290		586
Investments and advances	56		—		—		56		43		44
Total Assets at Fair Value	$	268	$	—	$	—	$	268	$	333	$	630

Properties, plant and equipment The company did not have any individually material impairments of long-lived assets measured at fair value on a nonrecurring basis to report in third quarter2018.

Investments and advances The company did not have any material impairments of investments and advances measured at fair value on a nonrecurring basis to report in third quarter2018.

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Financial and Derivative Instruments

9 Months Ended

Sep. 30, 2018

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Financial and Derivative Instruments

Financial and Derivative Instruments

The company’s derivative instruments principally include crude oil, natural gas and refined product futures, swaps, options, and forward contracts. None of the company’s derivative instruments are designated as hedging instruments, although certain of the company’s affiliates make such a designation. The company’s derivatives are not material to the company’s consolidated financial position, results of operations or liquidity. The company believes it has no material market or credit risks to its operations, financial position or liquidity as a result of its commodities and other derivatives activities.

The company uses derivative commodity instruments traded on the New York Mercantile Exchange and on electronic platforms of the Inter-Continental Exchange and Chicago Mercantile Exchange. In addition, the company enters into swap contracts and option contracts principally with major financial institutions and other oil and gas companies in the “over-the-counter” markets, which are governed by International Swaps and Derivatives Association agreements and other master netting arrangements.

Derivative instruments measured at fair value at September 30, 2018, and December 31, 2017, and their classification on the Consolidated Balance Sheet and Consolidated Statement of Income are as follows:

Consolidated Balance Sheet: Fair Value of Derivatives Not Designated as Hedging Instruments

(Millions of dollars)

Type of Contract	Balance Sheet Classification	At September 30 2018		At December 31 2017
Commodity	Accounts and notes receivable, net	$	15	$	22
Commodity	Long-term receivables, net	1		—
Total Assets at Fair Value		$	16	$	22
Commodity	Accounts payable	$	76	$	122
Commodity	Deferred credits and other noncurrent obligations	8		2
Total Liabilities at Fair Value		$	84	$	124

Consolidated Statement of Income: The Effect of Derivatives Not Designated as Hedging Instruments

(Millions of dollars)

		Gain / (Loss) Three Months Ended September 30						Gain / (Loss) Nine Months Ended September 30
Type of Contract	Statement of Income Classification	2018			2017			2018			2017
Commodity	Sales and other operating revenues	$	(80	)	$	(196	)	$	(257	)	$	82
Commodity	Purchased crude oil and products	(10		)	(7		)	(36		)	3
Commodity	Other income	1			1			1			(2		)
		$	(89	)	$	(202	)	$	(292	)	$	83

The table below represents gross and net derivative assets and liabilities subject to netting agreements on the Consolidated Balance Sheet at September 30, 2018, and December 31, 2017.

Consolidated Balance Sheet: The Effect of Netting Derivative Assets and Liabilities

(Millions of dollars)

	Gross Amount Recognized		Gross Amounts Offset		Net Amounts Presented		Gross Amounts Not Offset		Net Amount
At September 30, 2018
Derivative Assets	$	3,399	$	3,383	$	16	$	9	$	7
Derivative Liabilities	$	3,467	$	3,383	$	84	$	9	$	75
At December 31, 2017
Derivative Assets	$	1,169	$	1,147	$	22	$	—	$	22
Derivative Liabilities	$	1,271	$	1,147	$	124	$	—	$	124

Derivative assets and liabilities are classified on the Consolidated Balance Sheet as accounts and notes receivable, long-term receivables, accounts payable, and deferred credits and other noncurrent obligations. Amounts not offset on the Consolidated Balance Sheet represent positions that do not meet all the conditions for "a right of offset."

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Revenue

9 Months Ended

Sep. 30, 2018

Revenue from Contract with Customer [Abstract]

Revenue

Revenue

On January 1, 2018, Chevron adopted ASU 2014-09, Revenue from Contracts with Customers (ASC 606), and its related amendments using the modified retrospective transition method, which did not require the restatement of prior periods. The adoption did not result in a material change in the company’s accounting or have a material effect on the company’s financial position, including the measurement of revenue, the timing of revenue recognition and the recognition of contract assets, liabilities and related costs.

The most significant change is the presentation of excise, value-added and similar taxes collected on behalf of third parties, which are no longer presented within “Sales and other operating revenue” on the Consolidated Statement of Income starting in 2018. These taxes, which totaled $5.9 billion in the nine months ended September 30, 2018, are now netted in “Taxes other than on income” in the Consolidated Statement of Income. This change to presentation had no impact on earnings. In the nine months ended September 30, 2017, these taxes totaled $5.3 billion.

Under the new standard, the company accounts for commodity delivery orders as separate performance obligations. Revenue is recognized when the performance obligation is satisfied, which continues to typically occur at the point in time when control of the product transfers to the customer. Payment is generally due within 30 days from delivery. The company has elected to account for delivery transportation as a fulfillment cost, not a separate performance obligation. These costs continue to be recognized as an operating expense in the period when revenue for the related commodity is recognized.

Revenue is measured as the amount the company expects to receive in exchange for transferring commodities to the customer. The company’s commodity sales are typically based on prevailing market-based prices and may include discounts and allowances. Until market prices become known under terms of the company’s contracts, the transaction price included in revenue is based on the company’s estimate of the most likely outcome.

Discounts and allowances are estimated using a combination of historical and recent data trends. When deliveries contain multiple products, an observable standalone selling price is generally used to measure revenue for each product. The company includes estimates in the transaction price only to the extent that a significant reversal of revenue is not probable in subsequent periods.

The company applied the optional exemption to not report any unfulfilled performance obligations related to contracts that have terms of less than one year. The amount of future revenue for unfulfilled performance obligations under long-term contracts with fixed components was insignificant for the nine months ended September 30, 2018.

Revenue from contracts with customers is presented in “Sales and other operating revenue” along with some activity that is accounted for outside the scope of ASC 606, which is not material to this line, on the Consolidated Statement of Income. Purchases and sales of inventory with the same counterparty that are entered into in contemplation of one another (including buy/sell arrangements) are combined and recorded on a net basis and reported in “purchased crude oil and products” on the Consolidated Statement of Income. Refer to Note 7 beginning on page 11 for additional information on the company’s segmentation of revenue.

Receivables related to revenue from contracts with customers are included in “Accounts and notes receivable, net” on the Consolidated Balance Sheet, net of the allowance for doubtful accounts. The net balance of these receivables was $9.8 billion and $11.9 billion at January 1, 2018 and September 30, 2018, respectively. Other items included in “Accounts and notes receivable, net” represent amounts due from partners for their share of joint venture operating and project costs and amounts due from others, primarily related to derivatives, leases, buy/sell arrangements and product exchanges, which are accounted for outside the scope of ASC 606, Revenue from Contracts with Customers.

Contract assets and related costs are reflected in “Prepaid expenses and other current assets” and contract liabilities are reflected in “Accrued liabilities” and “Deferred credits and other noncurrent obligations” on the Consolidated Balance Sheet. Amounts for these items are not material to the company’s financial position.

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Accounting for Suspended Exploratory Wells

9 Months Ended

Sep. 30, 2018

Accounting for Suspended Exploratory Wells [Abstract]

Accounting for Suspended Exploratory Wells

Accounting for Suspended Exploratory Wells

The capitalized cost of suspended wells at September 30, 2018, was $3.6 billion, a net decrease of $124 million from year-end 2017. The decrease was primarily due to well write-offs, partially offset by drilling activities. During the nine months ended September 30, 2018, $313 million of exploratory well costs previously capitalized for greater than one year at December 31, 2017, were charged to expense.

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New Accounting Standards (Policies)

9 Months Ended

Sep. 30, 2018

New Accounting Pronouncements and Changes in Accounting Principles [Abstract]

New Accounting Standards

Revenue Recognition (Topic 606): Revenue from Contracts with CustomersOn January 1, 2018, Chevron adopted ASU 2014-09 and its related amendments using the modified retrospective transition method, which did not require the restatement of prior periods. The impact of the adoption of the standard did not have a material effect on the company’s consolidated financial statements. For additional information on the company’s revenue, refer to Note 17 beginning on page 24.

Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash PaymentsEffective January 1, 2018, Chevron adopted ASU 2016-15 on a retrospective basis. The standard provides clarification on how certain cash receipts and cash payments are presented and classified on the Consolidated Statement of Cash Flows. The adoption of this ASU did not have a material impact on the company's Consolidated Statement of Cash Flows. For additional information, refer to Note 4 beginning on page 8.

Statement of Cash Flows (Topic 230): Restricted Cash Effective January 1, 2018, Chevron adopted ASU 2016-18 on a retrospective basis. The standard requires an entity to explain the changes in the total of cash, cash equivalents, restricted cash and restricted cash equivalents on the Consolidated Statement of Cash Flows and to provide a reconciliation to the Consolidated Balance Sheet when the cash, cash equivalents, restricted cash and restricted cash equivalents are not separately presented or are presented in more than one line item on the Consolidated Balance Sheet. The company’s restricted cash balances are now included in the beginning and ending balances on the Consolidated Statement of Cash Flows. For additional information, refer to Note 4 beginning on page 8.

Other Income - Gains and Losses from the Derecognition of Nonfinancial Assets (Subtopic 610-20)On January 1, 2018, the company adopted ASU 2017-05 which provides clarification regarding the guidance on accounting for the derecognition of nonfinancial assets. The adoption of the standard had no impact on the company’s consolidated financial statements.

Compensation - Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost Effective January 1, 2018, Chevron adopted ASU 2017-07 on a retrospective basis. The standard requires the disaggregation of the service cost component from the other components of net periodic benefit cost and allows only the service cost component of net benefit cost to be eligible for capitalization. The effects of retrospective adoption on the Consolidated Statement of Income for the nine-month period ended September 30, 2017 were to move $234 million from "Operating expenses" and $251 million from "Selling, general and administrative expenses" to "Other components of net periodic benefits cost."

Leases (Topic 842) In February 2016, the Financial Accounting Standards Board (FASB) issued ASU 2016-02 which becomes effective for the company January 1, 2019. The standard requires that lessees present right-of-use assets and lease liabilities on the balance sheet. The company plans to elect the short-term lease exception provided for in the standard and therefore will only recognize right-of-use assets and lease liabilities for leases with a term greater than one year. The company further intends to elect the option to apply the transition provisions of the new standard at the adoption date instead of the earliest comparative period presented in the financial statements. The company continues to focus its implementation efforts on accounting policy and disclosure updates and system implementation necessary to meet the standard's requirements. The company is continuing its review of contracts which may result in certain contracts, currently not classified as leases, being classified as operating leases under the new standard. The company does not expect the adoption of the ASU to have a material impact on finance leases, which are currently referred to as capital leases. The company estimates the operating lease right-of-use assets and lease liabilities to be recognized by the company on January 1, 2019 will be approximately $3 to $4 billion. The operating lease balance could change as contracts are executed, modified, renewed, or expired. The estimate could also be impacted by changes to interest and foreign exchange rates. The company expects the implementation of the standard will have a minimal impact on the Consolidated Statement of Income and Consolidated Statement of Cash Flows.

Income Statement - Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income In February 2018, the FASB issued ASU 2018-02, which becomes effective for the company January 1, 2019.  The standard permits companies to reclassify the residual tax effects in Accumulated Other Comprehensive Income as a result of tax reform to retained earnings and also requires additional new disclosures.  The company is evaluating the effect of the standard on its consolidated financial statements.

Financial Instruments - Credit Losses (Topic 326) In June 2016, the FASB issued ASU 2016-13, which becomes effective for the company beginning January 1, 2020. The standard requires companies to use forward-looking information to calculate credit loss estimates. The company is evaluating the effect of the standard on its consolidated financial statements.

Segment Reporting

Although each subsidiary of Chevron is responsible for its own affairs, Chevron Corporation manages its investments in these subsidiaries and their affiliates. The investments are grouped into two business segments, Upstream and Downstream, representing the company’s “reportable segments” and “operating segments.” Upstream operations consist primarily of exploring for, developing and producing crude oil and natural gas; liquefaction, transportation and regasification associated with liquefied natural gas (LNG); transporting crude oil by major international oil export pipelines; processing, transporting, storage and marketing of natural gas; and a gas-to-liquids plant. Downstream operations consist primarily of refining of crude oil into petroleum products; marketing of crude oil and refined products; transporting of crude oil and refined products by pipeline, marine vessel, motor equipment and rail car; and manufacturing and marketing of commodity petrochemicals, plastics for industrial uses, and fuel and lubricant additives. All Other activities of the company include worldwide cash management and debt financing activities, corporate administrative functions, insurance operations, real estate activities and technology companies.

The company’s segments are managed by “segment managers” who report to the “chief operating decision maker” (CODM). The segments represent components of the company that engage in activities (a) from which revenues are earned and expenses are incurred; (b) whose operating results are regularly reviewed by the CODM, which makes decisions about resources to be allocated to the segments and assesses their performance; and (c) for which discrete financial information is available.

The company’s primary country of operation is the United States of America, its country of domicile. Other components of the company’s operations are reported as “International” (outside the United States).

Fair Value of Financial Instruments

The three levels of the fair value hierarchy of inputs the company uses to measure the fair value of an asset or liability are described as follows:

Level 1: Quoted prices (unadjusted) in active markets for identical assets and liabilities. For the company, Level 1 inputs include exchange-traded futures contracts for which the parties are willing to transact at the exchange-quoted price and marketable securities that are actively traded.

Level 2: Inputs other than Level 1 that are observable, either directly or indirectly. For the company, Level 2 inputs include quoted prices for similar assets or liabilities, prices obtained through third-party broker quotes and prices that can be corroborated with other observable inputs for substantially the complete term of a contract.

Level 3: Unobservable inputs. The company does not use Level 3 inputs for any of its recurring fair value measurements. Level 3 inputs may be required for the determination of fair value associated with certain nonrecurring measurements of nonfinancial assets and liabilities.

Revenue

On January 1, 2018, Chevron adopted ASU 2014-09, Revenue from Contracts with Customers (ASC 606), and its related amendments using the modified retrospective transition method, which did not require the restatement of prior periods. The adoption did not result in a material change in the company’s accounting or have a material effect on the company’s financial position, including the measurement of revenue, the timing of revenue recognition and the recognition of contract assets, liabilities and related costs.

The most significant change is the presentation of excise, value-added and similar taxes collected on behalf of third parties, which are no longer presented within “Sales and other operating revenue” on the Consolidated Statement of Income starting in 2018. These taxes, which totaled $5.9 billion in the nine months ended September 30, 2018, are now netted in “Taxes other than on income” in the Consolidated Statement of Income. This change to presentation had no impact on earnings. In the nine months ended September 30, 2017, these taxes totaled $5.3 billion.

Under the new standard, the company accounts for commodity delivery orders as separate performance obligations. Revenue is recognized when the performance obligation is satisfied, which continues to typically occur at the point in time when control of the product transfers to the customer. Payment is generally due within 30 days from delivery. The company has elected to account for delivery transportation as a fulfillment cost, not a separate performance obligation. These costs continue to be recognized as an operating expense in the period when revenue for the related commodity is recognized.

Revenue is measured as the amount the company expects to receive in exchange for transferring commodities to the customer. The company’s commodity sales are typically based on prevailing market-based prices and may include discounts and allowances. Until market prices become known under terms of the company’s contracts, the transaction price included in revenue is based on the company’s estimate of the most likely outcome.

Discounts and allowances are estimated using a combination of historical and recent data trends. When deliveries contain multiple products, an observable standalone selling price is generally used to measure revenue for each product. The company includes estimates in the transaction price only to the extent that a significant reversal of revenue is not probable in subsequent periods.

The company applied the optional exemption to not report any unfulfilled performance obligations related to contracts that have terms of less than one year. The amount of future revenue for unfulfilled performance obligations under long-term contracts with fixed components was insignificant for the nine months ended September 30, 2018.

Revenue from contracts with customers is presented in “Sales and other operating revenue” along with some activity that is accounted for outside the scope of ASC 606, which is not material to this line, on the Consolidated Statement of Income. Purchases and sales of inventory with the same counterparty that are entered into in contemplation of one another (including buy/sell arrangements) are combined and recorded on a net basis and reported in “purchased crude oil and products” on the Consolidated Statement of Income. Refer to Note 7 beginning on page 11 for additional information on the company’s segmentation of revenue.

Receivables related to revenue from contracts with customers are included in “Accounts and notes receivable, net” on the Consolidated Balance Sheet, net of the allowance for doubtful accounts. The net balance of these receivables was $9.8 billion and $11.9 billion at January 1, 2018 and September 30, 2018, respectively. Other items included in “Accounts and notes receivable, net” represent amounts due from partners for their share of joint venture operating and project costs and amounts due from others, primarily related to derivatives, leases, buy/sell arrangements and product exchanges, which are accounted for outside the scope of ASC 606, Revenue from Contracts with Customers.

Contract assets and related costs are reflected in “Prepaid expenses and other current assets” and contract liabilities are reflected in “Accrued liabilities” and “Deferred credits and other noncurrent obligations” on the Consolidated Balance Sheet. Amounts for these items are not material to the company’s financial position.

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Changes in Accumulated Other Comprehensive Losses (Tables)

9 Months Ended

Sep. 30, 2018

Equity [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss)

The change in Accumulated Other Comprehensive Losses (AOCL) presented on the Consolidated Balance Sheet and the impact of significant amounts reclassified from AOCL on information presented in the Consolidated Statement of Income for the nine months ended September 30, 2018, are reflected in the table below.

Changes in Accumulated Other Comprehensive Income (Loss) by Component ⁽¹⁾ 

	Nine Months Ended September 30, 2018
	Currency Translation Adjustment			Unrealized Holding Gains (Losses) on Securities			Derivatives			Defined Benefit Plans			Total
	(Millions of dollars)
Balance at January 1	$	(105	)	$	(5	)	$	(2	)	$	(3,477	)	$	(3,589	)
Components of Other Comprehensive Income (Loss):
Before Reclassifications	(12		)	(6		)	—			(53		)	(71		)
Reclassifications (2)	—			—			—			395			395
Net Other Comprehensive Income (Loss)	(12		)	(6		)	—			342			324
Balance at September 30	$	(117	)	$	(11	)	$	(2	)	$	(3,135	)	$	(3,265	)

________________________________

⁽¹⁾ All amounts are net of tax.

⁽²⁾ Refer to Note 11, Employee Benefits for reclassified components totaling $513 million that are included in employee benefit costs for the nine months ended September 30, 2018. Related income taxes for the same period, totaling $118 million, are reflected in "Income Tax Expense" on the Consolidated Statement of Income. All other reclassified amounts were insignificant.

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Noncontrolling Interests (Tables)

9 Months Ended

Sep. 30, 2018

Noncontrolling Interest [Abstract]

Activity for equity attributable to noncontrolling interests

Activity for the equity attributable to noncontrolling interests for the first nine months of 2018 and 2017 is as follows:

	2018									2017
	Chevron Corporation Stockholders’ Equity			Non-controlling Interest			Total Equity			Chevron Corporation Stockholders’ Equity			Non-controlling Interest			Total Equity
	(Millions of dollars)
Balance at January 1	$	148,124		$	1,195		$	149,319		$	145,556		$	1,166		$	146,722
Net income	11,094			43			11,137			6,084			67			6,151
Dividends	(6,384		)	—			(6,384		)	(6,095		)	—			(6,095		)
Distributions to noncontrolling interests	—			(87		)	(87		)	—			(66		)	(66		)
Treasury shares, net	185			—			185			597			—			597
Other changes, net*	556			(53		)	503			571			31			602
Balance at September 30	$	153,575		$	1,098		$	154,673		$	146,713		$	1,198		$	147,911

 __________________________________________

* Includes components of comprehensive income, which are disclosed separately in the Consolidated Statement of Comprehensive Income.

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Information Relating to the Consolidated Statement of Cash Flows (Tables)

9 Months Ended

Sep. 30, 2018

Supplemental Cash Flow Elements [Abstract]

Net increase in operating working capital

The “Net decrease (increase) in operating working capital” was composed of the following operating changes:

	Nine Months Ended September 30
	2018			2017
	(Millions of dollars)
Decrease (increase) in accounts and notes receivable	$	(1,741	)	$	265
Decrease (increase) in inventories	(749		)	(436		)
Decrease (increase) in prepaid expenses and other current assets 1	(310		)	235
Increase (decrease) in accounts payable and accrued liabilities 1	887			(621		)
Increase (decrease) in income and other taxes payable	31			9
Net decrease (increase) in operating working capital 1	$	(1,882	)	$	(548	)
_____________________
1   2017 amount adjusted to conform to Accounting Standards Update 2016-18.

Cash payment for interest on debt and for income taxes

“Net Cash Provided by Operating Activities” included the following cash payments for interest on debt and for income taxes:

	Nine Months Ended September 30
	2018		2017
	(Millions of dollars)
Interest on debt (net of capitalized interest)	$	502	$	30
Income taxes	3,526		2,203

Net sales of marketable securities

The “Net sales (purchases) of marketable securities” consisted of the following gross amounts:

	Nine Months Ended September 30
	2018			2017
	(Millions of dollars)
Marketable securities purchased	$	(51	)	$	(3	)
Marketable securities sold	—			3
Net sales (purchases) of marketable securities	$	(51	)	$	—

Schedule of net borrowing of loans by equity affiliates

The “Net repayment (borrowing) of loans by equity affiliates” consisted of the following gross amounts:

	Nine Months Ended September 30
	2018		2017
	(Millions of dollars)
Borrowing of loans by equity affiliates	$	—	$	(142	)
Repayment of loans by equity affiliates	78		106
Net repayment (borrowing) of loans by equity affiliates	$	78	$	(36	)

Schedule of short-term debt

The “Net borrowings (repayments) of short-term obligations" consisted of the following gross and net amounts:

	Nine Months Ended September 30
	2018			2017
	(Millions of dollars)
Repayments of short-term obligations	$	(3,379	)	$	(8,403	)
Proceeds from issuances of short-term obligations	2,452			3,415
Net borrowings (repayments) of short-term obligations with three months or less maturity	3,126			(2,197		)
Net borrowings (repayments) of short-term obligations	$	2,199		$	(7,185	)

Capital expenditures

The major components of “Capital expenditures” and the reconciliation of this amount to the capital and exploratory expenditures, including equity affiliates, are as follows:

	Nine Months Ended September 30
	2018		2017
	(Millions of dollars)
Additions to properties, plant and equipment	$	9,489	$	9,615
Additions to investments	36		16
Current year dry hole expenditures	276		131
Payments for other liabilities and assets, net	—		1
Capital expenditures	9,801		9,763
Expensed exploration expenditures	364		368
Assets acquired through capital lease obligations	65		3
Capital and exploratory expenditures, excluding equity affiliates	10,230		10,134
Company’s share of expenditures by equity affiliates	4,115		3,252
Capital and exploratory expenditures, including equity affiliates	$	14,345	$	13,386

Schedule of cash, cash equivalents and restricted cash

The table below quantifies the beginning and ending balances of restricted cash and restricted cash equivalents in the Consolidated Balance Sheet:

	At September 30				At December 31
	2018		2017		2017		2016
	(Millions of dollars)				(Millions of dollars)
Cash and Cash Equivalents	$	9,686	$	6,641	$	4,813	$	6,988
Restricted cash included in "Prepaid expenses and other current assets"	277		523		405		488
Restricted cash included in "Deferred charges and other assets"	778		791		725		938
Total Cash, Cash Equivalents and Restricted Cash	$	10,741	$	7,955	$	5,943	$	8,414

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Operating Segments and Geographic Data (Tables)

9 Months Ended

Sep. 30, 2018

Segment Reporting [Abstract]

Segment Earnings

Earnings by major operating area for the three- and nine-month periods ended September 30, 2018 and 2017, are presented in the following table:

	Three Months Ended September 30						Nine Months Ended September 30
Segment Earnings	2018			2017			2018			2017
	(Millions of dollars)
Upstream
United States	$	828		$	(26	)	$	2,314		$	(48	)
International	2,551			515			7,712			2,907
Total Upstream	3,379			489			10,026			2,859
Downstream
United States	748			640			1,847			1,743
International	625			1,174			1,092			2,192
Total Downstream	1,373			1,814			2,939			3,935
Total Segment Earnings	4,752			2,303			12,965			6,794
All Other
Interest expense	(171		)	(30		)	(524		)	(115		)
Interest income	37			13			84			42
Other	(571		)	(334		)	(1,431		)	(637		)
Net Income Attributable to Chevron Corporation	$	4,047		$	1,952		$	11,094		$	6,084

Segment Assets

Segment assets at September 30, 2018, and December 31, 2017, are as follows:

Segment Assets	At September 30 2018		At December 31 2017
	(Millions of dollars)
Upstream
United States	$	42,126	$	40,770
International	155,396		159,612
Goodwill	4,518		4,531
Total Upstream	202,040		204,913
Downstream
United States	24,141		23,202
International	17,628		17,434
Total Downstream	41,769		40,636
Total Segment Assets	243,809		245,549
All Other
United States	5,353		4,938
International	7,444		3,319
Total All Other	12,797		8,257
Total Assets — United States	71,620		68,910
Total Assets — International	180,468		180,365
Goodwill	4,518		4,531
Total Assets	$	256,606	$	253,806

Segment Sales and Other Operating Revenues

	Three Months Ended September 30						Nine Months Ended September 30
Sales and Other Operating Revenues	2018			2017			2018			2017
	(Millions of dollars)
Upstream
United States	$	6,784		$	3,245		$	16,405		$	9,620
International	10,312			7,191			27,848			20,624
Subtotal	17,096			10,436			44,253			30,244
Intersegment Elimination — United States	(4,277		)	(2,298		)	(10,219		)	(6,737		)
Intersegment Elimination — International	(4,045		)	(2,828		)	(10,681		)	(8,256		)
Total Upstream	8,774			5,310			23,353			15,251
Downstream *
United States	16,405			13,452			45,137			39,206
International	18,568			15,298			52,571			44,512
Subtotal	34,973			28,750			97,708			83,718
Intersegment Elimination — United States	(1,360		)	(5		)	(1,804		)	(11		)
Intersegment Elimination — International	(339		)	(216		)	(869		)	(818		)
Total Downstream	33,274			28,529			95,035			82,889
All Other
United States	264			260			759			773
International	6			6			16			19
Subtotal	270			266			775			792
Intersegment Elimination — United States	(207		)	(207		)	(583		)	(621		)
Intersegment Elimination — International	(6		)	(6		)	(16		)	(18		)
Total All Other	57			53			176			153
Sales and Other Operating Revenues
United States	23,454			16,957			62,302			49,599
International	28,885			22,495			80,434			65,155
Subtotal	52,339			39,452			142,736			114,754
Intersegment Elimination — United States	(5,844		)	(2,510		)	(12,606		)	(7,369		)
Intersegment Elimination — International	(4,390		)	(3,050		)	(11,566		)	(9,092		)
Total Sales and Other Operating Revenues	$	42,105		$	33,892		$	118,564		$	98,293
_____________________________
* The three-month and nine-month comparative periods ended September 30, 2017, include excise, value-added and similar taxes of $1,867 million and $5,315 million, respectively, collected on behalf of third parties. Beginning in 2018, these taxes are netted in "Taxes other than on income" in accordance with ASU 2014-09. Refer to Note 17, "Revenue" beginning on page 24.

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Summarized Financial Data - Chevron U.S.A. Inc. (Tables)

9 Months Ended

Sep. 30, 2018

Summarized Financial Data of Subsidiary One [Abstract]

Summarized Financial Data - Chevron U.S.A. Inc.

The summarized financial information for CUSA and its consolidated subsidiaries is as follows:

	Nine Months Ended September 30
	2018		2017
	(Millions of dollars)
Sales and other operating revenues*	$	93,434	$	75,759
Costs and other deductions*	90,912		75,403
Net income attributable to CUSA	2,929		1,315
_____________________________
* 2017 includes excise, value-added and similar taxes collected on behalf of third parties of $3,268 million. Beginning in   2018, these taxes are netted in "Taxes other than on income" in accordance with ASU 2014-09.

Summarized Financial Data and its Subsidiary

	At September 30 2018		At December 31 2017
	(Millions of dollars)
Current assets	$	15,036	$	12,163
Other assets	55,209		54,994
Current liabilities	18,329		17,379
Other liabilities	13,049		12,541
Total CUSA net equity	$	38,867	$	37,237
Memo: Total debt	$	3,049	$	3,056

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Summarized Financial Data - Tengizchevroil LLP (Tables)

9 Months Ended

Sep. 30, 2018

Summarized Financial Data of Affiliate [Abstract]

Summarized Financial Data - Tengizchevroil LLP

Summarized financial information for 100 percent of TCO is presented in the following table:

	Nine Months Ended September 30
	2018		2017
	(Millions of dollars)
Sales and other operating revenues	$	13,255	$	9,619
Costs and other deductions	5,780		4,806
Net income attributable to TCO	5,265		3,402

Summarized financial information for 100 percent of CPChem is presented in the table below:

	Nine Months Ended September 30
	2018		2017
	(Millions of dollars)
Sales and other operating revenues	$	8,773	$	6,816
Costs and other deductions	7,475		5,732
Net income attributable to CPChem	1,766		1,424

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Summarized Financial Data - Chevron Phillips Chemical Company LLC (Tables)

9 Months Ended

Sep. 30, 2018

Summarized Financial Data of Subsidiary Two [Abstract]

Summarized Financial Data - Chevron Transport Corporation

Summarized financial information for 100 percent of TCO is presented in the following table:

	Nine Months Ended September 30
	2018		2017
	(Millions of dollars)
Sales and other operating revenues	$	13,255	$	9,619
Costs and other deductions	5,780		4,806
Net income attributable to TCO	5,265		3,402

Summarized financial information for 100 percent of CPChem is presented in the table below:

	Nine Months Ended September 30
	2018		2017
	(Millions of dollars)
Sales and other operating revenues	$	8,773	$	6,816
Costs and other deductions	7,475		5,732
Net income attributable to CPChem	1,766		1,424

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Employee Benefits (Tables)

9 Months Ended

Sep. 30, 2018

Retirement Benefits [Abstract]

Components of Net Periodic Benefit Cost

The components of net periodic benefit costs for 2018 and 2017 are as follows:

	Three Months Ended September 30						Nine Months Ended September 30
	2018			2017			2018			2017
	(Millions of dollars)
Pension Benefits
United States
Service cost	$	120		$	122		$	360		$	366
Interest cost	93			91			278			274
Expected return on plan assets	(159		)	(149		)	(477		)	(447		)
Amortization of prior service costs (credits)	—			(1		)	1			(3		)
Amortization of actuarial losses (gains)	76			85			228			255
Settlement losses	128			169			260			325
Total United States	258			317			650			770
International
Service cost	36			38			109			114
Interest cost	49			54			155			164
Expected return on plan assets	(62		)	(61		)	(193		)	(178		)
Amortization of prior service costs (credits)	2			3			8			9
Amortization of actuarial losses (gains)	6			11			23			33
Curtailment losses	3			—			3			—
Total International	34			45			105			142
Net Periodic Pension Benefit Costs	$	292		$	362		$	755		$	912
Other Benefits*
Service cost	$	10		$	8		$	31		$	24
Interest cost	24			23			72			71
Amortization of prior service costs (credits)	(7		)	(7		)	(21		)	(21		)
Amortization of actuarial losses (gains)	4			(1		)	11			(4		)
Net Periodic Other Benefit Costs	$	31		$	23		$	93		$	70

_ ___________________________________

* Includes costs for U.S. and international OPEB plans. Obligations for plans outside the United States are not significant relative to the company’s total OPEB obligation.

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Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2018

Fair Value Disclosures [Abstract]

Assets and Liabilities Measured at Fair Value on a Recurring Basis

The fair value hierarchy for assets and liabilities measured at fair value on a recurring basis at September 30, 2018, and December 31, 2017, is as follows:

Assets and Liabilities Measured at Fair Value on a Recurring Basis

(Millions of dollars)

	At September 30, 2018								At December 31, 2017
	Total		Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3
Marketable Securities	$	60	$	60	$	—	$	—	$	9	$	9	$	—	$	—
Derivatives	16		1		15		—		22		—		22		—
Total Assets at Fair Value	$	76	$	61	$	15	$	—	$	31	$	9	$	22	$	—
Derivatives	84		52		32		—		124		78		46		—
Total Liabilities at Fair Value	$	84	$	52	$	32	$	—	$	124	$	78	$	46	$	—

Assets and Liabilities Measured at Fair Value on a Non-Recurring Basis

The fair value hierarchy for assets and liabilities measured at fair value on a nonrecurring basis at September 30, 2018, is as follows:

Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis

(Millions of dollars)

	At September 30, 2018
									Before-Tax Loss
	Total		Level 1		Level 2		Level 3		Three Months Ended		Nine Months Ended
Properties, plant and equipment, net (held and used)	$	—	$	—	$	—	$	—	$	—	$	—
Properties, plant and equipment, net (held for sale)	212		—		—		212		290		586
Investments and advances	56		—		—		56		43		44
Total Assets at Fair Value	$	268	$	—	$	—	$	268	$	333	$	630

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Financial and Derivative Instruments (Tables)

9 Months Ended

Sep. 30, 2018

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Consolidated Balance Sheet: Fair Value of Derivatives Not Designated as Hedging Instruments

Derivative instruments measured at fair value at September 30, 2018, and December 31, 2017, and their classification on the Consolidated Balance Sheet and Consolidated Statement of Income are as follows:

Consolidated Balance Sheet: Fair Value of Derivatives Not Designated as Hedging Instruments

(Millions of dollars)

Type of Contract	Balance Sheet Classification	At September 30 2018		At December 31 2017
Commodity	Accounts and notes receivable, net	$	15	$	22
Commodity	Long-term receivables, net	1		—
Total Assets at Fair Value		$	16	$	22
Commodity	Accounts payable	$	76	$	122
Commodity	Deferred credits and other noncurrent obligations	8		2
Total Liabilities at Fair Value		$	84	$	124

Consolidated Statement of Income: The Effect of Derivatives Not Designated as Hedging Instruments

Consolidated Statement of Income: The Effect of Derivatives Not Designated as Hedging Instruments

(Millions of dollars)

		Gain / (Loss) Three Months Ended September 30						Gain / (Loss) Nine Months Ended September 30
Type of Contract	Statement of Income Classification	2018			2017			2018			2017
Commodity	Sales and other operating revenues	$	(80	)	$	(196	)	$	(257	)	$	82
Commodity	Purchased crude oil and products	(10		)	(7		)	(36		)	3
Commodity	Other income	1			1			1			(2		)
		$	(89	)	$	(202	)	$	(292	)	$	83

Schedule of Offsetting Assets

The table below represents gross and net derivative assets and liabilities subject to netting agreements on the Consolidated Balance Sheet at September 30, 2018, and December 31, 2017.

Consolidated Balance Sheet: The Effect of Netting Derivative Assets and Liabilities

(Millions of dollars)

	Gross Amount Recognized		Gross Amounts Offset		Net Amounts Presented		Gross Amounts Not Offset		Net Amount
At September 30, 2018
Derivative Assets	$	3,399	$	3,383	$	16	$	9	$	7
Derivative Liabilities	$	3,467	$	3,383	$	84	$	9	$	75
At December 31, 2017
Derivative Assets	$	1,169	$	1,147	$	22	$	—	$	22
Derivative Liabilities	$	1,271	$	1,147	$	124	$	—	$	124

Schedule of Offsetting Liabilities

The table below represents gross and net derivative assets and liabilities subject to netting agreements on the Consolidated Balance Sheet at September 30, 2018, and December 31, 2017.

Consolidated Balance Sheet: The Effect of Netting Derivative Assets and Liabilities

(Millions of dollars)

	Gross Amount Recognized		Gross Amounts Offset		Net Amounts Presented		Gross Amounts Not Offset		Net Amount
At September 30, 2018
Derivative Assets	$	3,399	$	3,383	$	16	$	9	$	7
Derivative Liabilities	$	3,467	$	3,383	$	84	$	9	$	75
At December 31, 2017
Derivative Assets	$	1,169	$	1,147	$	22	$	—	$	22
Derivative Liabilities	$	1,271	$	1,147	$	124	$	—	$	124

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Changes in Accumulated Other Comprehensive Losses (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at January 1			$ 149,319	$ 146,722
Components of Other Comprehensive Income (Loss):
Before Reclassifications			(71)
Reclassifications			395
Other Comprehensive Gain, Net of Tax	$ 103	$ 182	324	421
Balance at September 30	154,673	147,911	154,673	147,911
Related income taxes	1,643	$ 672	4,540	$ 1,589
Total
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at January 1			(3,589)
Components of Other Comprehensive Income (Loss):
Balance at September 30	(3,265)		(3,265)
Currency Translation Adjustment
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at January 1			(105)
Components of Other Comprehensive Income (Loss):
Before Reclassifications			(12)
Reclassifications			0
Other Comprehensive Gain, Net of Tax			(12)
Balance at September 30	(117)		(117)
Unrealized Holding Gains (Losses) on Securities
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at January 1			(5)
Components of Other Comprehensive Income (Loss):
Before Reclassifications			(6)
Reclassifications			0
Other Comprehensive Gain, Net of Tax			(6)
Balance at September 30	(11)		(11)
Derivatives
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at January 1			(2)
Components of Other Comprehensive Income (Loss):
Before Reclassifications			0
Reclassifications			0
Other Comprehensive Gain, Net of Tax			0
Balance at September 30	(2)		(2)
Defined Benefit Plans
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at January 1			(3,477)
Components of Other Comprehensive Income (Loss):
Before Reclassifications			(53)
Reclassifications			395
Other Comprehensive Gain, Net of Tax			342
Balance at September 30	$ (3,135)		(3,135)
Defined Benefit Plans | Reclassification out of Accumulated Other Comprehensive Income
Components of Other Comprehensive Income (Loss):
Employee Benefits for reclassified components			513
Related income taxes			$ 118

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Noncontrolling Interests (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Activity for equity attributable to noncontrolling interests
Balance at January 1			$ 149,319	$ 146,722
Net income	$ 4,056	$ 1,986	11,137	6,151
Dividends			(6,384)	(6,095)
Distributions to noncontrolling interests			(87)	(66)
Treasury shares, net			185	597
Other changes, net			503	602
Balance at September 30	154,673	147,911	154,673	147,911
Chevron Corporation Stockholders’ Equity
Activity for equity attributable to noncontrolling interests
Balance at January 1			148,124	145,556
Net income			11,094	6,084
Dividends			(6,384)	(6,095)
Distributions to noncontrolling interests			0	0
Treasury shares, net			185	597
Other changes, net			556	571
Balance at September 30	153,575	146,713	153,575	146,713
Non-controlling Interest
Activity for equity attributable to noncontrolling interests
Balance at January 1			1,195	1,166
Net income			43	67
Dividends			0	0
Distributions to noncontrolling interests			(87)	(66)
Treasury shares, net			0	0
Other changes, net			(53)	31
Balance at September 30	$ 1,098	$ 1,198	$ 1,098	$ 1,198

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Information Relating to the Consolidated Statement of Cash Flows (Details) - USD ($) $ in Millions		9 Months Ended
		Sep. 30, 2018	Sep. 30, 2017
Net decrease (increase) in operating working capital
Decrease (increase) in accounts and notes receivable		$ (1,741)	$ 265
Decrease (increase) in inventories		(749)	(436)
Decrease (increase) in prepaid expenses and other current assets		(310)	235
Increase (decrease) in accounts payable and accrued liabilities		887	(621)
Increase (decrease) in income and other taxes payable		31	9
Net decrease (increase) in operating working capital	[1]	(1,882)	(548)
Cash Payment for Interest on Debt and For Income Taxes
Interest on debt (net of capitalized interest)		502	30
Income taxes		3,526	2,203
Net sales of marketable securities
Marketable securities purchased		(51)	(3)
Marketable securities sold		0	3
Net sales (purchases) of marketable securities		(51)	0
Net borrowing of loans by equity affiliates
Borrowing of loans by equity affiliates		0	(142)
Repayment of loans by equity affiliates		78	106
Net repayment (borrowing) of loans by equity affiliates		78	(36)
Net (repayments) borrowings of short-term obligations
Repayments of short-term obligations		(3,379)	(8,403)
Proceeds from issuances of short-term obligations		2,452	3,415
Net borrowings (repayments) of short-term obligations with three months or less maturity		3,126	(2,197)
Net borrowings (repayments) of short-term obligations		2,199	(7,185)
Capital expenditures
Additions to properties, plant and equipment		9,489	9,615
Additions to investments		36	16
Current year dry hole expenditures		276	131
Payments for other liabilities and assets, net		0	1
Capital expenditures		9,801	9,763
Expensed exploration expenditures		364	368
Assets acquired through capital lease obligations		65	3
Capital and exploratory expenditures, excluding equity affiliates		10,230	10,134
Company’s share of expenditures by equity affiliates		4,115	3,252
Capital and exploratory expenditures, including equity affiliates		$ 14,345	$ 13,386

[1] 2017 adjusted to conform to Accounting Standards Update 2016-18. Refer to Note 4, "Information Relating to the Consolidated Statement of Cash Flows" beginning on page 8.

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Information Relating to the Consolidated Statement of Cash Flows (Details Textual) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Supplemental Cash Flow Elements [Abstract]
Net purchases of treasury shares			$ 751	$ 1
Stock repurchased during period (in shares)			6,300,000	0
Stock repurchased during period			$ 750
Dividends paid of common stock (in dollars per share)	$ 1.12	$ 1.08	$ 3.36	$ 3.24

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Information Relating to the Consolidated Statement of Cash Flows (Details 1) - USD ($) $ in Millions		9 Months Ended
		Sep. 30, 2018	Sep. 30, 2017
Item Effected [Line Items]
Distributions less than income from equity affiliates	[1]	$ (2,526)	$ (2,284)
Accounting Standards Update 2016-15
Item Effected [Line Items]
Distributions less than income from equity affiliates			$ 162

[1] 2017 adjusted to conform to Accounting Standards Update 2016-15. Refer to Note 4, "Information Relating to the Consolidated Statement of Cash Flows" beginning on page 8.

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Information Relating to the Consolidated Statement of Cash Flows (Details 2) - USD ($) $ in Millions		Sep. 30, 2018	Dec. 31, 2017	Sep. 30, 2017	Dec. 31, 2016
Supplemental Cash Flow Elements [Abstract]
Cash and Cash Equivalents		$ 9,686	$ 4,813	$ 6,641	$ 6,988
Restricted cash included in Prepaid expenses and other current assets		277	405	523	488
Restricted cash included in Deferred charges and other assets		778	725	791	938
Total Cash, Cash Equivalents and Restricted Cash	[1]	$ 10,741	$ 5,943	$ 7,955	$ 8,414

[1] 2017 adjusted to conform to Accounting Standards Update 2016-18. Refer to Note 4, "Information Relating to the Consolidated Statement of Cash Flows" beginning on page 8.

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New Accounting Standards (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating expenses	[1]	$ (4,985)	$ (4,849)	$ (14,899)	$ (14,021)
Selling, general and administrative expenses	[1]	(1,018)	$ (1,107)	(2,758)	(2,848)
Pro Forma | Minimum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease, right-of-use asset		3,000		3,000
Operating lease, liability		3,000		3,000
Pro Forma | Maximum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease, right-of-use asset		4,000		4,000
Operating lease, liability		$ 4,000		$ 4,000
Accounting Standards Update 2017-07
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating expenses					234
Selling, general and administrative expenses					$ 251

[1] 2017 adjusted to conform to ASU 2017-07. Refer to Note 5, "New Accounting Standards" beginning on page 10.

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Assets Held For Sale (Details) - USD ($) $ in Millions	Sep. 30, 2018	Dec. 31, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Assets held for sale	$ 983	$ 640
Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Assets held for sale	$ 983

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Operating Segments and Geographic Data (Details Textual)	9 Months Ended
	Sep. 30, 2018 segment
Segment Reporting [Abstract]
Number of reportable segments	2
Number of operating segments	2

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Operating Segments and Geographic Data (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Segment Reporting Information [Line Items]
Segment Earnings	$ 4,047	$ 1,952	$ 11,094	$ 6,084
Operating Segments
Segment Reporting Information [Line Items]
Segment Earnings	4,752	2,303	12,965	6,794
Operating Segments | Upstream
Segment Reporting Information [Line Items]
Segment Earnings	3,379	489	10,026	2,859
Operating Segments | Upstream | United States
Segment Reporting Information [Line Items]
Segment Earnings	828	(26)	2,314	(48)
Operating Segments | Upstream | International
Segment Reporting Information [Line Items]
Segment Earnings	2,551	515	7,712	2,907
Operating Segments | Downstream
Segment Reporting Information [Line Items]
Segment Earnings	1,373	1,814	2,939	3,935
Operating Segments | Downstream | United States
Segment Reporting Information [Line Items]
Segment Earnings	748	640	1,847	1,743
Operating Segments | Downstream | International
Segment Reporting Information [Line Items]
Segment Earnings	625	1,174	1,092	2,192
All Other
Segment Reporting Information [Line Items]
Interest expense	(171)	(30)	(524)	(115)
Interest income	37	13	84	42
Other	$ (571)	$ (334)	$ (1,431)	$ (637)

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Operating Segments and Geographic Data (Details 1) - USD ($) $ in Millions	Sep. 30, 2018	Dec. 31, 2017
Segment Assets
Segment Assets	$ 256,606	$ 253,806
Goodwill	4,518	4,531
United States
Segment Assets
Segment Assets	71,620	68,910
International
Segment Assets
Segment Assets	180,468	180,365
Operating Segments
Segment Assets
Segment Assets	243,809	245,549
Operating Segments | Upstream
Segment Assets
Segment Assets	202,040	204,913
Goodwill	4,518	4,531
Operating Segments | Upstream | United States
Segment Assets
Segment Assets	42,126	40,770
Operating Segments | Upstream | International
Segment Assets
Segment Assets	155,396	159,612
Operating Segments | Downstream
Segment Assets
Segment Assets	41,769	40,636
Operating Segments | Downstream | United States
Segment Assets
Segment Assets	24,141	23,202
Operating Segments | Downstream | International
Segment Assets
Segment Assets	17,628	17,434
All Other
Segment Assets
Segment Assets	12,797	8,257
All Other | United States
Segment Assets
Segment Assets	5,353	4,938
All Other | International
Segment Assets
Segment Assets	$ 7,444	$ 3,319

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Operating Segments and Geographic Data (Details 2) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Segment Reporting Information [Line Items]
Sales and Other Operating Revenues	[1]	$ 42,105		$ 118,564
Sales and Other Operating Revenues	[1]		$ 33,892		$ 98,293
Includes excise, value-added and similar taxes			1,867		5,315
Oil and Gas
Segment Reporting Information [Line Items]
Sales and Other Operating Revenues		42,105		118,564
Sales and Other Operating Revenues			33,892		98,293
Oil and Gas | Operating Segments
Segment Reporting Information [Line Items]
Sales and Other Operating Revenues		52,339		142,736
Sales and Other Operating Revenues			39,452		114,754
Oil and Gas | All Other
Segment Reporting Information [Line Items]
Sales and Other Operating Revenues		270		775
Sales and Other Operating Revenues			266		792
Oil and Gas | Total All Other
Segment Reporting Information [Line Items]
Sales and Other Operating Revenues		57		176
Sales and Other Operating Revenues			53		153
Oil and Gas | United States | Operating Segments
Segment Reporting Information [Line Items]
Sales and Other Operating Revenues		23,454		62,302
Sales and Other Operating Revenues			16,957		49,599
Oil and Gas | United States | Intersegment Eliminations
Segment Reporting Information [Line Items]
Sales and Other Operating Revenues		(207)		(583)
Sales and Other Operating Revenues			(207)		(621)
Oil and Gas | United States | All Other
Segment Reporting Information [Line Items]
Sales and Other Operating Revenues		264		759
Sales and Other Operating Revenues			260		773
Oil and Gas | United States | Intersegment Eliminations
Segment Reporting Information [Line Items]
Sales and Other Operating Revenues		(5,844)		(12,606)
Sales and Other Operating Revenues			(2,510)		(7,369)
Oil and Gas | International | Operating Segments
Segment Reporting Information [Line Items]
Sales and Other Operating Revenues		28,885		80,434
Sales and Other Operating Revenues			22,495		65,155
Oil and Gas | International | Intersegment Eliminations
Segment Reporting Information [Line Items]
Sales and Other Operating Revenues		(6)		(16)
Sales and Other Operating Revenues			(6)		(18)
Oil and Gas | International | All Other
Segment Reporting Information [Line Items]
Sales and Other Operating Revenues		6		16
Sales and Other Operating Revenues			6		19
Oil and Gas | International | Intersegment Eliminations
Segment Reporting Information [Line Items]
Sales and Other Operating Revenues		(4,390)		(11,566)
Sales and Other Operating Revenues			(3,050)		(9,092)
Oil and Gas | Upstream
Segment Reporting Information [Line Items]
Sales and Other Operating Revenues		8,774		23,353
Sales and Other Operating Revenues			5,310		15,251
Oil and Gas | Upstream | Operating Segments
Segment Reporting Information [Line Items]
Sales and Other Operating Revenues		17,096		44,253
Sales and Other Operating Revenues			10,436		30,244
Oil and Gas | Upstream | United States | Operating Segments
Segment Reporting Information [Line Items]
Sales and Other Operating Revenues		6,784		16,405
Sales and Other Operating Revenues			3,245		9,620
Oil and Gas | Upstream | United States | Intersegment Eliminations
Segment Reporting Information [Line Items]
Sales and Other Operating Revenues		(4,277)		(10,219)
Sales and Other Operating Revenues			(2,298)		(6,737)
Oil and Gas | Upstream | International | Operating Segments
Segment Reporting Information [Line Items]
Sales and Other Operating Revenues		10,312		27,848
Sales and Other Operating Revenues			7,191		20,624
Oil and Gas | Upstream | International | Intersegment Eliminations
Segment Reporting Information [Line Items]
Sales and Other Operating Revenues		(4,045)		(10,681)
Sales and Other Operating Revenues			(2,828)		(8,256)
Oil and Gas | Downstream
Segment Reporting Information [Line Items]
Sales and Other Operating Revenues		33,274		95,035
Sales and Other Operating Revenues			28,529		82,889
Oil and Gas | Downstream | Operating Segments
Segment Reporting Information [Line Items]
Sales and Other Operating Revenues		34,973		97,708
Sales and Other Operating Revenues			28,750		83,718
Oil and Gas | Downstream | United States | Operating Segments
Segment Reporting Information [Line Items]
Sales and Other Operating Revenues		16,405		45,137
Sales and Other Operating Revenues			13,452		39,206
Oil and Gas | Downstream | United States | Intersegment Eliminations
Segment Reporting Information [Line Items]
Sales and Other Operating Revenues		(1,360)		(1,804)
Sales and Other Operating Revenues			(5)		(11)
Oil and Gas | Downstream | International | Operating Segments
Segment Reporting Information [Line Items]
Sales and Other Operating Revenues		18,568		52,571
Sales and Other Operating Revenues			15,298		44,512
Oil and Gas | Downstream | International | Intersegment Eliminations
Segment Reporting Information [Line Items]
Sales and Other Operating Revenues		$ (339)		$ (869)
Sales and Other Operating Revenues			$ (216)		$ (818)

[1] The three-month and nine-month comparative periods ended September 30, 2017, include excise, value-added and similar taxes of $1,867 million and $5,315 million, respectively, collected on behalf of third parties. Beginning in 2018, these taxes are netted in "Taxes other than on income" in accordance with ASU 2014-09. Refer to Note 17, "Revenue" beginning on page 24.

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Summarized Financial Data - Chevron U.S.A. Inc. (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Total Revenues and Other Income	[1]		$ 33,892		$ 98,293
Costs and other deductions		$ 38,288	33,547	$ 108,310	96,366
Net income attributable to CUSA		$ 4,047	1,952	11,094	6,084
Includes excise, value-added and similar taxes			1,867		5,315
Oil and Gas
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Total Revenues and Other Income			$ 33,892		98,293
Chevron U.S.A. Inc.
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Costs and other deductions				90,912	75,403
Net income attributable to CUSA				2,929	1,315
Includes excise, value-added and similar taxes					3,268
Chevron U.S.A. Inc. | Oil and Gas
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Total Revenues and Other Income				$ 93,434	$ 75,759

[1] The three-month and nine-month comparative periods ended September 30, 2017, include excise, value-added and similar taxes of $1,867 million and $5,315 million, respectively, collected on behalf of third parties. Beginning in 2018, these taxes are netted in "Taxes other than on income" in accordance with ASU 2014-09. Refer to Note 17, "Revenue" beginning on page 24.

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Summarized Financial Data - Chevron U.S.A. Inc. (Details 1) - USD ($) $ in Millions	Sep. 30, 2018	Dec. 31, 2017	Sep. 30, 2017	Dec. 31, 2016
Subsidiary Statements Captions [Line Items]
Current assets	$ 35,583	$ 28,560
Current liabilities	29,183	27,737
Total CUSA net equity	154,673	149,319	$ 147,911	$ 146,722
Chevron U.S.A. Inc.
Subsidiary Statements Captions [Line Items]
Current assets	15,036	12,163
Other assets	55,209	54,994
Current liabilities	18,329	17,379
Other liabilities	13,049	12,541
Total CUSA net equity	38,867	37,237
Memo: Total debt	$ 3,049	$ 3,056

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Summarized Financial Data - Tengizchevroil LLP (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Tengizchevroil LLP
Affiliate Statements Captions [Line Items]
Percentage of affiliate by summarized financial information	100.00%
Sales and other operating revenues	$ 13,255	$ 9,619
Costs and other deductions	5,780	4,806
Net income attributable to TCO	$ 5,265	$ 3,402
Tengizchevroil LLP
Affiliate Statements Captions [Line Items]
Equity ownership, percentage	50.00%

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Summarized Financial Data - Chevron Phillips Chemical Company LLC (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Summarized Financial Data - Chevron Transport Corporation
Total Revenues and Other Income	[1]		$ 33,892		$ 98,293
Costs and other deductions		$ 38,288	33,547	$ 108,310	96,366
Net income attributable to TCO		$ 4,047	1,952	$ 11,094	6,084
Oil and Gas
Summarized Financial Data - Chevron Transport Corporation
Total Revenues and Other Income			$ 33,892		98,293
Chevron Phillips Chemical Company LLC
Affiliate Statements Captions [Line Items]
Percentage of affiliate by summarized financial information		100.00%		100.00%
Summarized Financial Data - Chevron Transport Corporation
Costs and other deductions				$ 7,475	5,732
Net income attributable to TCO				1,766	1,424
Chevron Phillips Chemical Company LLC | Oil and Gas
Summarized Financial Data - Chevron Transport Corporation
Total Revenues and Other Income				$ 8,773	$ 6,816
Chevron Phillips Chemical Company LLC
Affiliate Statements Captions [Line Items]
Equity method investment, ownership percentage		50.00%		50.00%

[1] The three-month and nine-month comparative periods ended September 30, 2017, include excise, value-added and similar taxes of $1,867 million and $5,315 million, respectively, collected on behalf of third parties. Beginning in 2018, these taxes are netted in "Taxes other than on income" in accordance with ASU 2014-09. Refer to Note 17, "Revenue" beginning on page 24.

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Employee Benefits (Details Textual) $ in Millions	9 Months Ended
	Sep. 30, 2018 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Pre-Medicare company contribution for retiree medical coverage, maximum percent	4.00%
Contribution to other post retirement plans	$ 125
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, contributions by employer to employee pension plan	941
Defined benefit plan, estimated future employer contributions in next fiscal year beginning after the date of the latest statement of financial position	1,050
Pension Benefits | United States
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, contributions by employer to employee pension plan	788
Defined benefit plan, estimated future employer contributions in next fiscal year beginning after the date of the latest statement of financial position	800
Pension Benefits | International
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, estimated future employer contributions in next fiscal year beginning after the date of the latest statement of financial position	250
Other Benefits
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, expected contributions during the remaining of fiscal year	$ 50

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Employee Benefits (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Pension Benefits
Net Periodic Benefit Cost
Net Periodic Other Benefit Costs	$ 292	$ 362	$ 755	$ 912
Pension Benefits | United States
Net Periodic Benefit Cost
Service cost	120	122	360	366
Interest cost	93	91	278	274
Expected return on plan assets	(159)	(149)	(477)	(447)
Amortization of prior service costs (credits)	0	(1)	1	(3)
Amortization of actuarial losses (gains)	76	85	228	255
Settlement losses	128	169	260	325
Net Periodic Other Benefit Costs	258	317	650	770
Pension Benefits | International
Net Periodic Benefit Cost
Service cost	36	38	109	114
Interest cost	49	54	155	164
Expected return on plan assets	(62)	(61)	(193)	(178)
Amortization of prior service costs (credits)	2	3	8	9
Amortization of actuarial losses (gains)	6	11	23	33
Curtailment losses	3	0	3	0
Net Periodic Other Benefit Costs	34	45	105	142
Other Benefits
Net Periodic Benefit Cost
Service cost	10	8	31	24
Interest cost	24	23	72	71
Amortization of prior service costs (credits)	(7)	(7)	(21)	(21)
Amortization of actuarial losses (gains)	4	(1)	11	(4)
Net Periodic Other Benefit Costs	$ 31	$ 23	$ 93	$ 70

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Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Income Tax Disclosure [Abstract]
Increase in income tax expense	$ 971		$ 2,950
Income tax expense	$ 1,643	$ 672	$ 4,540	$ 1,589
Effective tax rates	29.00%	25.00%	29.00%	21.00%

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Litigation (Details) $ in Millions					1 Months Ended		12 Months Ended
	Mar. 27, 2017 defendant	Nov. 13, 2013 USD ($)	Aug. 03, 2012 USD ($)	Feb. 14, 2011 USD ($)	Sep. 30, 2010 USD ($)	Aug. 31, 2010	Dec. 31, 1991 USD ($)	Sep. 30, 2018 LegalMatter	Nov. 06, 2012	Jan. 03, 2012	Dec. 31, 2008 USD ($)
MTBE | Pending Litigation
Loss Contingencies [Line Items]
Pending lawsuits and claims (in number of claims) | LegalMatter								8
Ecuador | Pending Litigation
Loss Contingencies [Line Items]
Conducted remediation program							3 years
Remediation program							$ 40
Financial compensation for purported damages on mining engineer's report											$ 18,900
Assessment for purported unjust enrichment on mining engineer's report											$ 8,400
Court order requiring the parties to provide their positions on damages within (in days)						45 days
Amount assessed in damages		$ 9,500		$ 8,600
Amount assessed for plaintiffs representatives				900
Additional amount assessed in punitive damages				$ 8,600
Public apology date within judgment/clarification ruling (in days)				15 days
Proposed additional payment for plaintiff attorney fees as percentage of judgment										0.10%
Litigation settlement, amount awarded to			$ 19,100
Percentage of payments withheld by third parties due to freeze order									40.00%
Percentage of funds withheld by banks due to freeze order									40.00%
Ecuador | Pending Litigation | Minimum
Loss Contingencies [Line Items]
Approximate damages on plaintiffs' submission					$ 16,000
Approximate unjust enrichment on plaintiffs' submission					5,000
Ecuador | Pending Litigation | Maximum
Loss Contingencies [Line Items]
Approximate damages on plaintiffs' submission					76,000
Approximate unjust enrichment on plaintiffs' submission					$ 38,000
Ecuador | Declaratory Relief Claim
Loss Contingencies [Line Items]
Pending lawsuits and claims (in number of claims) | LegalMatter								1
Writ of Certiorari
Loss Contingencies [Line Items]
Number of defendants | defendant	2

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Other Contingencies and Commitments (Details)	Dec. 31, 2009 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Indemnifications acquirer environmental liabilities max obligation	$ 200,000,000

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Fair Value Measurements (Details) - USD ($) $ in Millions	Sep. 30, 2018	Dec. 31, 2017	Jun. 30, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]
Derivatives	$ 16	$ 22
Derivatives	84	$ 124
Recurring Basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]
Marketable Securities	60		$ 9
Derivatives	16		22
Total Assets at Fair Value	76		31
Derivatives	84		124
Total Liabilities at Fair Value	84		124
Recurring Basis | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]
Marketable Securities	60		9
Derivatives	1		0
Total Assets at Fair Value	61		9
Derivatives	52		78
Total Liabilities at Fair Value	52		78
Recurring Basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]
Marketable Securities	0		0
Derivatives	15		22
Total Assets at Fair Value	15		22
Derivatives	32		46
Total Liabilities at Fair Value	32		46
Recurring Basis | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]
Marketable Securities	0		0
Derivatives	0		0
Total Assets at Fair Value	0		0
Derivatives	0		0
Total Liabilities at Fair Value	$ 0		$ 0

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Fair Value Measurements (Details Textual) - USD ($) $ in Billions	9 Months Ended
	Sep. 30, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	$ 9.7	$ 4.8
Restricted cash	1.1	1.1
Level 1 | Corporate Bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of debt	19.0
Level 2 | Other Long-term Investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of debt	0.8
Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt, net carrying value	19.9	23.5
Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt, net carrying value	$ 19.8	$ 23.9
Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Maturity period of primarily bank time deposits, maximum, classified as cash equivalents and money market funds (in days)	90 days

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Fair Value Measurements (Details 1) - Nonrecurring Basis $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2018 USD ($)	Sep. 30, 2018 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Properties, plant and equipment, net (held and used)	$ 0	$ 0
Properties, plant and equipment, net (held for sale)	212	212
Investments and advances	56	56
Total Assets at Fair Value	268	268
Properties, plant and equipment, net (held and used), Before-Tax Loss	0	0
Properties, plant and equipment, net (held for sale), Before-Tax Loss	290	586
Investments and advances, Before Tax Loss	43	44
Total Assets at Fair Value, Before-Tax Loss	333	630
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Properties, plant and equipment, net (held and used)	0	0
Properties, plant and equipment, net (held for sale)	0	0
Investments and advances	0	0
Total Assets at Fair Value	0	0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Properties, plant and equipment, net (held and used)	0	0
Properties, plant and equipment, net (held for sale)	0	0
Investments and advances	0	0
Total Assets at Fair Value	0	0
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Properties, plant and equipment, net (held and used)	0	0
Properties, plant and equipment, net (held for sale)	212	212
Investments and advances	56	56
Total Assets at Fair Value	$ 268	$ 268

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Financial and Derivative Instruments (Details) - Commodity - USD ($) $ in Millions	Sep. 30, 2018	Dec. 31, 2017
Consolidated Balance Sheet: Fair Value of Derivatives not Designated as Hedging Instruments
Total Assets at Fair Value	$ 16	$ 22
Total Liabilities at Fair Value	84	124
Accounts and notes receivable, net
Consolidated Balance Sheet: Fair Value of Derivatives not Designated as Hedging Instruments
Total Assets at Fair Value	15	22
Long-term receivables, net
Consolidated Balance Sheet: Fair Value of Derivatives not Designated as Hedging Instruments
Total Assets at Fair Value	1	0
Accounts payable
Consolidated Balance Sheet: Fair Value of Derivatives not Designated as Hedging Instruments
Total Liabilities at Fair Value	76	122
Deferred credits and other noncurrent obligations
Consolidated Balance Sheet: Fair Value of Derivatives not Designated as Hedging Instruments
Total Liabilities at Fair Value	$ 8	$ 2

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Financial and Derivative Instruments (Details 1) - Commodity - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Consolidated Statement of Income: The Effect of Derivatives not Designated as Hedging Instruments
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	$ (89)	$ (202)	$ (292)	$ 83
Sales and other operating revenues
Consolidated Statement of Income: The Effect of Derivatives not Designated as Hedging Instruments
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	(80)	(196)	(257)	82
Purchased crude oil and products
Consolidated Statement of Income: The Effect of Derivatives not Designated as Hedging Instruments
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	(10)	(7)	(36)	3
Other income
Consolidated Statement of Income: The Effect of Derivatives not Designated as Hedging Instruments
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	$ 1	$ 1	$ 1	$ (2)

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Financial and Derivative Instruments (Details 2) - USD ($) $ in Millions	Sep. 30, 2018	Dec. 31, 2017
Offsetting Assets [Abstract]
Derivative Assets, Gross Amount Recognized	$ 3,399	$ 1,169
Derivative Assets, Gross Amounts Offset	3,383	1,147
Derivative Assets, Net Amounts Presented	16	22
Derivative Assets, Gross Amounts Not Offset	9	0
Derivative Assets, Net Amounts Presented	7	22
Offsetting Liabilities [Abstract]
Derivative Liabilities, Gross Amount Recognized	3,467	1,271
Derivative Liabilities, Gross Amounts Offset	3,383	1,147
Derivative Liabilities, Net Amounts Presented	84	124
Derivative Liabilities, Gross Amounts Not Offset	9	0
Derivative Liabilities, Net Amounts Presented	$ 75	$ 124

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Revenue (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Jan. 01, 2018
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Taxes other than on income	[1]	$ 1,259	$ 3,213	$ 3,966	$ 9,149
Includes excise, value-added and similar taxes			$ 1,867		$ 5,315
Receivables		$ 11,900		11,900		$ 9,800
Difference between Revenue Guidance in Effect before and after Topic 606 | Accounting Standards Update 2014-09
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Taxes other than on income				$ 5,900

[1] The three-month and nine-month comparative periods ended September 30, 2017, include excise, value-added and similar taxes of $1,867 million and $5,315 million, respectively, collected on behalf of third parties. Beginning in 2018, these taxes are netted in "Taxes other than on income" in accordance with ASU 2014-09. Refer to Note 17, "Revenue" beginning on page 24.

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Revenue (Details1)	9 Months Ended
	Sep. 30, 2018
Revenue from Contract with Customer [Abstract]
Revenue, performance obligation, description of timing	Payment is generally due within 30 days from delivery.

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Accounting for Suspended Exploratory Wells (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Accounting for Suspended Exploratory Wells [Abstract]
Capitalized cost of exploratory wells	$ 3,600
Decrease in capitalized cost of suspended wells from the prior year end		$ (124)
Capitalized exploratory well cost, charged to expense	$ 313