CONSOLIDATED STATEMENT OF EQUITY (Parenthetical) (Unaudited) $ in Millions	Mar. 31, 2020 USD ($) shares
Statement of Stockholders' Equity [Abstract]
Common stock	$ 1,832
Benefit Plan Trust	$ (240)
Number of Chevron treasury stocks held in benefit plan trust for funding obligations (in shares) \| shares	14,168,000

Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity.

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(29))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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