Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Long-tern, Net

No definition available.

Name:	cvx_DebtInstrumentUnamortizedDiscountPremiumandDebtIssuanceCostsLongternNet
Namespace Prefix:	cvx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=120520924&loc=SL6031897-161870

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

+ Details

Name:	us-gaap_DebtInstrumentCarryingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28551-108399

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

+ Details

Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Weighted average interest rate of debt outstanding.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtWeightedAverageInterestRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Gross amount of debt extinguished.

+ References

No definition available.

+ Details

Name:	us-gaap_ExtinguishmentOfDebtAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Present value of lessee's discounted obligation for lease payments from finance lease, classified as noncurrent.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977

+ Details

Name:	us-gaap_FinanceLeaseLiabilityNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of long-term debt and lease obligation, classified as noncurrent.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_LongTermDebtAndCapitalLeaseObligations
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- References

No definition available.

+ Details

Name:	us-gaap_LongTermDebtByMaturityAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19,20)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_LongTermDebtCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

+ Details

Name:	us-gaap_LongTermDebtFairValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 3
-Subparagraph (SX 210.12-04.(a))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24072-122690

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601

+ Details

Name:	us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

Name:	us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

Name:	us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

Name:	us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

Name:	us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

Name:	us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of a short-term obligation that has been excluded from current liabilities in the balance sheet because of a refinancing of the obligation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1927-112601

+ Details

Name:	us-gaap_ShortTermDebtRefinancedAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Long-Term Debt (Details) - USD ($)		12 Months Ended
Long-Term Debt (Details) - USD ($)	Jan. 06, 2021	Dec. 31, 2020	Dec. 31, 2019	Oct. 05, 2020	Aug. 31, 2020	May 31, 2020
Debt Instrument [Line Items]
Long-term debt instruments		$ 33,507,000,000	$ 18,730,000,000
Debt due within one year		(2,600,000,000)	(5,054,000,000)
Fair market valuation adjustment of Noble long-term debt		1,690,000,000	0
Reclassified from short-term debt		9,825,000,000	9,750,000,000
Unamortized discounts and debt issuance costs		(102,000,000)	(17,000,000)
Finance lease liabilities		447,000,000	282,000,000
Total long-term debt		42,767,000,000	23,691,000,000
Long-term Debt, Fiscal Year Maturity [Abstract]
2021		2,600,000,000
2022		5,548,000,000
2023		6,475,000,000
2024		1,650,000,000
2025		4,000,000,000
Thereafter		13,234,000,000
Noble
Debt Instrument [Line Items]
Long-term debt instruments				$ 5,800,000,000
Total long-term debt		$ 9,400,000,000
Noble \| Subsequent Event
Debt Instrument [Line Items]
Total long-term debt	$ 5,697,000,000
Long-term Debt, Fiscal Year Maturity [Abstract]
Extinguishment of debt	5,697,000,000
Notes
Long-term Debt, Fiscal Year Maturity [Abstract]
Debt issued					$ 4,000,000,000	$ 8,000,000,000
Notes \| Noble \| Subsequent Event
Debt Instrument [Line Items]
Long-term debt instruments	$ 103,000,000
Notes \| Minimum \| Noble
Debt Instrument [Line Items]
Interest rate				3.25%
Notes \| Maximum \| Noble
Debt Instrument [Line Items]
Interest rate				8.00%
Notes \| Notes due 2021
Debt Instrument [Line Items]
Interest rate		2.10%
Long-term debt instruments		$ 1,350,000,000	1,350,000,000
Notes \| Notes due 2022
Debt Instrument [Line Items]
Weighted Average Interest Rate		2.179%
Long-term debt instruments		$ 3,800,000,000	3,400,000,000
Notes \| Notes due 2022 \| Minimum
Debt Instrument [Line Items]
Interest rate		0.333%
Notes \| Notes due 2022 \| Maximum
Debt Instrument [Line Items]
Interest rate		2.498%
Notes \| Notes due 2023
Debt Instrument [Line Items]
Weighted Average Interest Rate		2.377%
Long-term debt instruments		$ 4,800,000,000	3,000,000,000
Notes \| Notes due 2023 \| Minimum
Debt Instrument [Line Items]
Interest rate		0.426%
Notes \| Notes due 2023 \| Maximum
Debt Instrument [Line Items]
Interest rate		7.25%
Notes \| Notes due 2024
Debt Instrument [Line Items]
Weighted Average Interest Rate		3.291%
Long-term debt instruments		$ 1,650,000,000	1,000,000,000
Notes \| Notes due 2024 \| Minimum
Debt Instrument [Line Items]
Interest rate		2.895%
Notes \| Notes due 2024 \| Maximum
Debt Instrument [Line Items]
Interest rate		3.90%
Notes \| Notes due 2025
Debt Instrument [Line Items]
Weighted Average Interest Rate		1.724%
Long-term debt instruments		$ 4,000,000,000	750,000,000
Notes \| Notes due 2025 \| Minimum
Debt Instrument [Line Items]
Interest rate		0.687%
Notes \| Notes due 2025 \| Maximum
Debt Instrument [Line Items]
Interest rate		3.326%
Notes \| Notes due 2026
Debt Instrument [Line Items]
Interest rate		2.954%
Long-term debt instruments		$ 2,250,000,000	2,250,000,000
Notes \| Notes due 2027
Debt Instrument [Line Items]
Weighted Average Interest Rate		2.379%
Long-term debt instruments		$ 2,000,000,000	0
Notes \| Notes due 2027 \| Minimum
Debt Instrument [Line Items]
Interest rate		1.018%
Notes \| Notes due 2027 \| Maximum
Debt Instrument [Line Items]
Interest rate		8.00%
Notes \| Notes due 2028
Debt Instrument [Line Items]
Interest rate		3.85%
Long-term debt instruments		$ 600,000,000	0
Notes \| Notes due 2029
Debt Instrument [Line Items]
Interest rate		3.25%
Long-term debt instruments		$ 500,000,000	0
Notes \| Notes due 2030
Debt Instrument [Line Items]
Interest rate		2.236%
Long-term debt instruments		$ 1,500,000,000	0
Notes \| Notes due 2040
Debt Instrument [Line Items]
Interest rate		2.978%
Long-term debt instruments		$ 500,000,000	0
Notes \| Notes due 2041
Debt Instrument [Line Items]
Interest rate		6.00%
Long-term debt instruments		$ 850,000,000	0
Notes \| Notes due 2043
Debt Instrument [Line Items]
Interest rate		5.25%
Long-term debt instruments		$ 1,000,000,000	0
Notes \| Notes due 2044
Debt Instrument [Line Items]
Interest rate		5.05%
Long-term debt instruments		$ 850,000,000	0
Notes \| Notes due 2047
Debt Instrument [Line Items]
Interest rate		4.95%
Long-term debt instruments		$ 500,000,000	0
Notes \| Notes due 2049
Debt Instrument [Line Items]
Interest rate		4.20%
Long-term debt instruments		$ 500,000,000	0
Notes \| Notes due 2050
Debt Instrument [Line Items]
Weighted Average Interest Rate		2.763%
Long-term debt instruments		$ 1,750,000,000	0
Notes \| Notes due 2050 \| Minimum
Debt Instrument [Line Items]
Interest rate		2.343%
Notes \| Notes due 2050 \| Maximum
Debt Instrument [Line Items]
Interest rate		3.078%
Notes \| Notes due 2020
Debt Instrument [Line Items]
Long-term debt instruments		$ 0	5,054,000,000
Floating Rate Notes \| Floating rate notes due 2021
Debt Instrument [Line Items]
Weighted Average Interest Rate		0.913%
Long-term debt instruments		$ 650,000,000	650,000,000
Floating Rate Notes \| Floating rate notes due 2021 \| Minimum
Debt Instrument [Line Items]
Interest rate		0.751%
Floating Rate Notes \| Floating rate notes due 2021 \| Maximum
Debt Instrument [Line Items]
Interest rate		1.171%
Floating Rate Notes \| Floating rate notes due 2022
Debt Instrument [Line Items]
Weighted Average Interest Rate		0.594%
Long-term debt instruments		$ 1,000,000,000	650,000,000
Floating Rate Notes \| Floating rate notes due 2022 \| Minimum
Debt Instrument [Line Items]
Interest rate		0.324%
Floating Rate Notes \| Floating rate notes due 2022 \| Maximum
Debt Instrument [Line Items]
Interest rate		0.762%
Floating Rate Notes \| Floating rate notes due 2023
Debt Instrument [Line Items]
Weighted Average Interest Rate		0.676%
Long-term debt instruments		$ 800,000,000	0
Floating Rate Notes \| Floating rate notes due 2023 \| Minimum
Debt Instrument [Line Items]
Interest rate		0.414%
Floating Rate Notes \| Floating rate notes due 2023 \| Maximum
Debt Instrument [Line Items]
Interest rate		1.114%
Debentures \| Debentures due 2021
Debt Instrument [Line Items]
Interest rate		8.875%
Long-term debt instruments		$ 40,000,000	40,000,000
Debentures \| Debentures due 2031
Debt Instrument [Line Items]
Interest rate		8.625%
Long-term debt instruments		$ 108,000,000	108,000,000
Debentures \| Debentures due 2032
Debt Instrument [Line Items]
Weighted Average Interest Rate		8.414%
Long-term debt instruments		$ 222,000,000	222,000,000
Debentures \| Debentures due 2032 \| Minimum
Debt Instrument [Line Items]
Interest rate		8.00%
Debentures \| Debentures due 2032 \| Maximum
Debt Instrument [Line Items]
Interest rate		8.625%
Debentures \| Debentures due 2097
Debt Instrument [Line Items]
Interest rate		7.25%
Long-term debt instruments		$ 84,000,000	0
Debentures \| 7.25% Notes
Debt Instrument [Line Items]
Interest rate		7.25%
Loans \| Bank loans due 2021 - 2023
Debt Instrument [Line Items]
Weighted Average Interest Rate		1.53%
Long-term debt instruments		$ 1,948,000,000	0
Loans \| Bank loans due 2021 - 2023 \| Minimum
Debt Instrument [Line Items]
Interest rate		1.24%
Loans \| Bank loans due 2021 - 2023 \| Maximum
Debt Instrument [Line Items]
Interest rate		2.004%
Loans \| 3.400% loan
Debt Instrument [Line Items]
Interest rate		3.40%
Long-term debt instruments		$ 218,000,000	218,000,000
Medium-term Notes \| Medium-term notes, maturing from 2021 to 2038
Debt Instrument [Line Items]
Weighted Average Interest Rate		6.131%
Long-term debt instruments		$ 37,000,000	$ 38,000,000
Medium-term Notes \| Medium-term notes, maturing from 2021 to 2038 \| Minimum
Debt Instrument [Line Items]
Interest rate		0.00%
Medium-term Notes \| Medium-term notes, maturing from 2021 to 2038 \| Maximum
Debt Instrument [Line Items]
Interest rate		8.875%