Consolidated Statement of Comprehensive Income (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012	Dec. 31, 2011
Statement of Comprehensive Income [Abstract]
Net Income	$ 21,597		$ 26,336	$ 27,008
Currency translation adjustment
Unrealized net change arising during period	42		23	17
Unrealized holding (loss) gain on securities
Net (loss) gain arising during period	(7)		1	(11)
Derivatives
Net derivatives (loss) gain on hedge transactions	(111)		20	20
Reclassification to net income of net realized (gain) loss	(1)		(14)	9
Income taxes on derivatives transactions	39		(3)	(10)
Total	(73)		3	19
Actuarial (gain) loss
Amortization to net income of net actuarial loss and settlements	866		920	773
Actuarial gain (loss) arising during period	3,379		(1,180)	(3,250)
Prior service credits (cost)
Amortization to net income of net prior service credits	(27)		(61)	(26)
Prior service credits (cost) arising during period	60		(142)	(27)
Defined benefit plans sponsored by equity affiliates	164		(54)	(81)
Income taxes on defined benefit plans	(1,614)		143	1,030
Total	2,828		(374)	(1,581)
Other Comprehensive Gain (Loss), Net of Tax	2,790	[1]	(347)	(1,556)
Comprehensive Income	24,387		25,989	25,452
Comprehensive income attributable to noncontrolling interests	(174)		(157)	(113)
Comprehensive Income Attributable to Chevron Corporation	$ 24,213		$ 25,832	$ 25,339

[1] All amounts are net of tax.