Noncontrolling Interests (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Activity for equity attributable to noncontrolling interests
Balance at January 1			$ 146,722	$ 153,886
Net income (loss)	$ 1,986	$ 1,301	6,151	(869)
Dividends			(6,095)	(6,009)
Distributions to noncontrolling interests			(66)	(57)
Treasury shares, net			597	375
Other changes, net			602	626
Balance at September 30	147,911	147,952	147,911	147,952
Chevron Corporation Stockholders’ Equity
Activity for equity attributable to noncontrolling interests
Balance at January 1			145,556	152,716
Net income (loss)			6,084	(912)
Dividends			(6,095)	(6,009)
Distributions to noncontrolling interests			0	0
Treasury shares, net			597	375
Other changes, net			571	630
Balance at September 30	146,713	146,800	146,713	146,800
Non-controlling Interest
Activity for equity attributable to noncontrolling interests
Balance at January 1			1,166	1,170
Net income (loss)			67	43
Dividends			0	0
Distributions to noncontrolling interests			(66)	(57)
Treasury shares, net			0	0
Other changes, net			31	(4)
Balance at September 30	$ 1,198	$ 1,152	$ 1,198	$ 1,152