Consolidated Statement of Equity - USD ($) $ in Millions		Total	Common Stock	[1]	Retained Earnings	Acc. Other Comprehensive Income (Loss)	Treasury Stock (at cost)	Chevron Corp. Stockholders' Equity	Noncontrolling Interests
Balance at January 1 at Dec. 31, 2016		$ 146,722	$ 18,187		$ 173,046	$ (3,843)	$ (41,834)	$ 145,556	$ 1,166
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Treasury stock transactions		253	253					253
Net Income (Loss)		9,269			9,195			9,195	74
Cash dividends		(8,210)			(8,132)			(8,132)	(78)
Stock dividends		(3)			(3)			(3)
Other comprehensive income		254				254		254
Purchases of treasury shares		(1)					(1)	(1)
Issuances of treasury shares		1,002					1,002	1,002
Other changes, net		33							33
Balance at December 31 at Dec. 31, 2017		$ 149,319	18,440		174,106	(3,589)	(40,833)	148,124	1,195
Beginning balance, shares issued (in shares) at Dec. 31, 2016	[2]	2,442,676,580
Beginning balance, treasury shares (in shares) at Dec. 31, 2016		(551,170,158)
Beginning balance, shares outstanding (in shares) at Dec. 31, 2016		1,891,506,422
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Purchases (in shares)		(10,237)
Issuances (in shares)		13,205,700
Ending balance, shares issued (in shares) at Dec. 31, 2017	[2]	2,442,676,580
Ending balance, treasury shares (in shares) at Dec. 31, 2017		(537,974,695)
Ending balance, shares outstanding (in shares) at Dec. 31, 2017		1,904,701,885
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Treasury stock transactions		$ 264	264					264
Net Income (Loss)		14,860			14,824			14,824	36
Cash dividends		(8,593)			(8,502)			(8,502)	(91)
Stock dividends		(3)			(3)			(3)
Other comprehensive income		607				607		607
Purchases of treasury shares		(1,751)					(1,751)	(1,751)
Issuances of treasury shares		991					991	991
Other changes, net		(52)			562	(562)			(52)
Balance at December 31 at Dec. 31, 2018		$ 155,642	18,704		180,987	(3,544)	(41,593)	154,554	1,088
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Purchases (in shares)		(14,912,039)
Issuances (in shares)		13,047,844
Ending balance, shares issued (in shares) at Dec. 31, 2018	[2]	2,442,676,580
Ending balance, treasury shares (in shares) at Dec. 31, 2018		(539,838,890)
Ending balance, shares outstanding (in shares) at Dec. 31, 2018		1,902,837,690
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Treasury stock transactions		$ 153	153					153
Net Income (Loss)		2,845			2,924			2,924	(79)
Cash dividends		(8,977)			(8,959)			(8,959)	(18)
Stock dividends		(3)			(3)			(3)
Other comprehensive income		(1,446)				(1,446)		(1,446)
Purchases of treasury shares		(4,039)					(4,039)	(4,039)
Issuances of treasury shares		1,033					1,033	1,033
Other changes, net		0			(4)			(4)	4
Balance at December 31 at Dec. 31, 2019		$ 145,208	$ 18,857		$ 174,945	$ (4,990)	$ (44,599)	$ 144,213	$ 995
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Purchases (in shares)		(33,955,300)
Issuances (in shares)		13,285,711
Ending balance, shares issued (in shares) at Dec. 31, 2019	[2]	2,442,676,580
Ending balance, treasury shares (in shares) at Dec. 31, 2019		(560,508,479)
Ending balance, shares outstanding (in shares) at Dec. 31, 2019		1,882,168,101

[1] Beginning and ending balances for all periods include capital in excess of par, common stock issued at par for $1,832, and $(240) associated with Chevron's Benefit Plan Trust. Changes reflect capital in excess of par.

[2] Beginning and ending total issued share balances include 14,168 shares associated with Chevron's Benefit Plan Trust.