Statements of Consolidated Equity (USD $) In Millions		Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Income (Loss)	Non-controlling Interest
Amount at Dec. 31, 2011		$ 3,978	$ 25	$ 1,000	$ 2,944	$ (226)	$ (75)	$ 310
Amount (shares) at Dec. 31, 2011			150.7			(10.8)
Net earnings		770	0	0	743	0	0	27
Purchases of common stock		(126)	0	0	0	(126)	0	0
Allocated equity on Tesoro Logistics LP common unit issuance		171	0	(3)	0	0	0	174
Shares issued for equity-based compensation awards		29	0	34	0	(5)	0	0
Excess tax benefits from stock-based compensation arrangements		5	0	5	0	0	0	0
Amortization of equity settled awards		34	0	32	0	1	0	1
Dividend payments		(38)	0	0	(38)	0	0	0
Distributions to noncontrolling interest		(26)	0	0	0	0	0	(26)
Other comprehensive (income) loss, net of tax		(62)	0	0	0	0	(62)	0
Other		2	0	2	0	0	0	0
Purchases of common stock (shares)			0			(3.5)
Shares issued for equity-based compensation awards (shares)			1.9			(0.1)
Amount at Dec. 31, 2012		4,737	25	1,070	3,649	(356)	(137)	486
Amount (shares) at Dec. 31, 2012			152.6			(14.4)
Net earnings		454	0	0	412	0	0	42
Purchases of common stock		(436)	0	0	0	(436)	0	0
Additional noncontrolling interest from Rockies Natural Gas Business	[1]							0
Allocated equity on Tesoro Logistics LP common unit issuance		702	0	(10)	0	0	0	712
Shares issued for equity-based compensation awards		67	1	72	0	(6)	0	0
Excess tax benefits from stock-based compensation arrangements		11	0	11	0	0	0	0
Amortization of equity settled awards		43	0	41	0	0	0	2
Dividend payments		(121)	0	0	(121)	0	0	0
Distributions to noncontrolling interest		(59)	0	0	0	0	0	(59)
Other comprehensive (income) loss, net of tax		85	0	0	0	0	85	0
Other		2	0	2	0	0	0	0
Purchases of common stock (shares)			0			(8.4)
Shares issued for equity-based compensation awards (shares)			2.1			(0.1)
Amount at Dec. 31, 2013		5,485	26	1,186	3,940	(798)	(52)	1,183
Amount (shares) at Dec. 31, 2013			154.7			(22.9)
Net earnings		888	0	0	843	0	0	45
Purchases of common stock		(500)	0	0	0	(500)	0	0
Additional noncontrolling interest from Rockies Natural Gas Business		432	0	0	0	0	0	432	[1]
Allocated equity on Tesoro Logistics LP common unit issuance		949	0	(11)	0	0	0	960
Shares issued for equity-based compensation awards		(3)	0	19	0	(22)	0	0
Excess tax benefits from stock-based compensation arrangements		20	0	20	0	0	0	0
Amortization of equity settled awards		38	0	36	0	0	0	2
Dividend payments		(141)	0	0	(141)	0	0	0
Distributions to noncontrolling interest		(96)	0	0	0	0	0	(96)
Other comprehensive (income) loss, net of tax		(97)	0	0	0	0	(97)	0
Other		1	0	5	0	0	0	(4)
Purchases of common stock (shares)			0			(8.4)
Shares issued for equity-based compensation awards (shares)			1.9			(0.4)
Amount at Dec. 31, 2014		$ 6,976	$ 26	$ 1,255	$ 4,642	$ (1,320)	$ (149)	$ 2,522
Amount (shares) at Dec. 31, 2014			156.6			(31.7)

[1] Represents the preliminary fair value of noncontrolling interest related to QEPM and RGS that was recognized as part TLLP’s purchase price allocation for the Rockies Natural Gas Business acquisition.