Consolidated Statement of Comprehensive Income (Unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014		Jun. 30, 2013
Statement of Comprehensive Income [Abstract]
Net Income	$ 5,690	$ 5,404	$ 10,211		$ 11,643
Currency translation adjustment	8	42	(30)		31
Unrealized holding gain (loss) on securities:
Net gain (loss) arising during period	4	(6)	8		(7)
Derivatives:
Net derivatives (loss) gain on hedge transactions	(79)	2	(82)		2
Reclassification to net income of net realized loss (gain)	0	5	(1)		0
Income tax benefit (expense) on derivatives transactions	28	(3)	29		(1)
Total	(51)	4	(54)		1
Actuarial loss:
Amortization to net income of net actuarial and settlement losses	114	232	225		459
Prior service cost:
Amortization to net income of net prior service costs (credits)	7	(7)	13		(14)
Defined benefit plans sponsored by equity affiliates	6	11	12		(9)
Income tax expense on defined benefit plans	(51)	(85)	(92)		(170)
Total	76	151	158		266
Other Comprehensive Gain, Net of Tax	37	191	82	[1]	291
Comprehensive Income	5,727	5,595	10,293		11,934
Comprehensive income attributable to noncontrolling interests	(25)	(39)	(34)		(100)
Comprehensive Income Attributable to Chevron Corporation	$ 5,702	$ 5,556	$ 10,259		$ 11,834

[1] All amounts are net of tax.