Noncontrolling Interests (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014		Sep. 30, 2013
Activity for equity attributable to noncontrolling interests
Balance at beginning of period			$ 150,427		$ 137,832
Net income	5,627	4,996	15,838		16,639
Dividends			(5,929)		(5,573)
Distributions to noncontrolling interests			(18)		(93)
Treasury shares, net			(3,210)		(3,214)
Other changes, net			199	[1]	482	[1]
Balance at end of period	157,307	146,073	157,307		146,073
Chevron Corporation Stockholders' Equity [Member]
Activity for equity attributable to noncontrolling interests
Balance at beginning of period			149,113		136,524
Net income			15,770		16,493
Dividends			(5,929)		(5,573)
Distributions to noncontrolling interests			0		0
Treasury shares, net			(3,210)		(3,214)
Other changes, net			396	[1]	549	[1]
Balance at end of period	156,140	144,779	156,140		144,779
Noncontrolling Interest [Member]
Activity for equity attributable to noncontrolling interests
Balance at beginning of period			1,314		1,308
Net income			68		146
Dividends			0		0
Distributions to noncontrolling interests			(18)		(93)
Treasury shares, net			0		0
Other changes, net			(197)	[1]	(67)	[1]
Balance at end of period	$ 1,167	$ 1,294	$ 1,167		$ 1,294

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