Noncontrolling Interests (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013		Jun. 30, 2012
Activity for equity attributable to noncontrolling interests
Balance at beginning of period			$ 137,832		$ 122,181
Net income	5,404	7,232	11,643		13,731
Dividends			(3,659)		(3,350)
Distributions to noncontrolling interests			(73)		(11)
Treasury shares, net			(2,059)		(2,188)
Other changes, net			480	[1]	926	[1]
Balance at end of period	144,164	131,289	144,164		131,289
Chevron Corporation Stockholders' Equity [Member]
Activity for equity attributable to noncontrolling interests
Balance at beginning of period			136,524		121,382
Net income			11,543		13,681
Dividends			(3,659)		(3,350)
Distributions to noncontrolling interests			0		0
Treasury shares, net			(2,059)		(2,188)
Other changes, net			492	[1]	472	[1]
Balance at end of period	142,841	129,997	142,841		129,997
Noncontrolling Interest [Member]
Activity for equity attributable to noncontrolling interests
Balance at beginning of period			1,308		799
Net income			100		50
Dividends			0		0
Distributions to noncontrolling interests			(73)		(11)
Treasury shares, net			0		0
Other changes, net			(12)	[1]	454	[1]
Balance at end of period	$ 1,323	$ 1,292	$ 1,323		$ 1,292

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