Noncontrolling Interests (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Activity for equity attributable to noncontrolling interests
Balance at January 1			$ 153,886	$ 156,191
Net income (loss)	$ 1,301	$ 2,057	(869)	5,265
Dividends			(6,009)	(5,995)
Distributions to noncontrolling interests			(57)	(122)
Treasury shares, net			375	181
Other changes, net			626	418
Balance at September 30	147,952	155,938	147,952	155,938
Chevron Corporation Stockholders' Equity [Member]
Activity for equity attributable to noncontrolling interests
Balance at January 1			152,716	155,028
Net income (loss)			(912)	5,175
Dividends			(6,009)	(5,995)
Distributions to noncontrolling interests			0	0
Treasury shares, net			375	181
Other changes, net			630	523
Balance at September 30	146,800	154,912	146,800	154,912
Noncontrolling Interest [Member]
Activity for equity attributable to noncontrolling interests
Balance at January 1			1,170	1,163
Net income (loss)			43	90
Dividends			0	0
Distributions to noncontrolling interests			(57)	(122)
Treasury shares, net			0	0
Other changes, net			(4)	(105)
Balance at September 30	$ 1,152	$ 1,026	$ 1,152	$ 1,026