Noncontrolling Interests (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Activity for equity attributable to noncontrolling interests
Balance at January 1			$ 149,319	$ 146,722
Net income	$ 4,056	$ 1,986	11,137	6,151
Dividends			(6,384)	(6,095)
Distributions to noncontrolling interests			(87)	(66)
Treasury shares, net			185	597
Other changes, net			503	602
Balance at September 30	154,673	147,911	154,673	147,911
Chevron Corporation Stockholders’ Equity
Activity for equity attributable to noncontrolling interests
Balance at January 1			148,124	145,556
Net income			11,094	6,084
Dividends			(6,384)	(6,095)
Distributions to noncontrolling interests			0	0
Treasury shares, net			185	597
Other changes, net			556	571
Balance at September 30	153,575	146,713	153,575	146,713
Non-controlling Interest
Activity for equity attributable to noncontrolling interests
Balance at January 1			1,195	1,166
Net income			43	67
Dividends			0	0
Distributions to noncontrolling interests			(87)	(66)
Treasury shares, net			0	0
Other changes, net			(53)	31
Balance at September 30	$ 1,098	$ 1,198	$ 1,098	$ 1,198