Consolidated Statement of Comprehensive Income (Unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014		Sep. 30, 2013
Statement of Comprehensive Income [Abstract]
Net Income	$ 5,627	$ 4,996	$ 15,838		$ 16,639
Currency translation adjustment	(19)	14	(49)		45
Unrealized holding (loss) gain on securities:
Net (loss) gain arising during period	(4)	1	4		(6)
Derivatives:
Net derivatives loss on hedge transactions	0	(109)	(66)		(107)
Reclassification to net income of net realized gain	0	(1)	(17)		(1)
Income tax benefit on derivatives transactions	0	39	29		38
Total	0	(71)	(54)		(70)
Actuarial loss:
Amortization to net income of net actuarial and settlement losses	125	226	350		685
Prior service cost:
Amortization to net income of net prior service costs (credits)	6	(6)	19		(20)
Defined benefit plans sponsored by equity affiliates	6	11	18		2
Income tax expense on defined benefit plans	(55)	(94)	(147)		(264)
Total	82	137	240		403
Other Comprehensive Gain, Net of Tax	59	81	141	[1]	372
Comprehensive Income	5,686	5,077	15,979		17,011
Comprehensive income attributable to noncontrolling interests	(34)	(46)	(68)		(146)
Comprehensive Income Attributable to Chevron Corporation	$ 5,652	$ 5,031	$ 15,911		$ 16,865

[1] All amounts are net of tax.