Condensed Statements of Consolidated Operations (Unaudited) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Income Statement [Abstract]
REVENUES (a)	$ 11,151		$ 11,241		$ 32,188		$ 27,485
COSTS AND EXPENSES:
Cost of sales (a)	9,594		10,355		28,409		24,827
Operating expenses	624		542		1,813		1,351
Selling, general and administrative expenses	86		54		209		229
Depreciation and amortization expense	144		140		409		356
(Gain) loss on asset disposals and impairments	1		4		(2)		19
OPERATING INCOME	702		146		1,350		703
Interest and financing costs, net	(51)	[1]	(47)	[1]	(169)	[1]	(110)	[1]
Other income, net	12	[2]	22	[2]	14	[2]	78	[2]
EARNINGS BEFORE INCOME TAXES	663		121		1,195		671
Income tax expense	249		47		437		243
NET EARNINGS FROM CONTINUING OPERATIONS	414		74		758		428
Earnings (loss) from discontinued operations, net of tax	(1)		35		(2)		23
NET EARNINGS	413		109		756		451
Less: Net earnings from continuing operations attributable to noncontrolling interest	17		10		58		32
NET EARNINGS ATTRIBUTABLE TO TESORO CORPORATION	396		99		698		419
NET EARNINGS (LOSS) ATTRIBUTABLE TO TESORO CORPORATION
Continuing operations	397		64		700		396
Discontinued operations	(1)		35		(2)		23
Total	396		99		698		419
NET EARNINGS (LOSS) PER SHARE - BASIC:
Continuing operations	$ 3.11		$ 0.48		$ 5.41		$ 2.92
Discontinued operations	$ (0.01)		$ 0.26		$ (0.02)		$ 0.17
Total	$ 3.10		$ 0.74		$ 5.39		$ 3.09
Weighted average common shares outstanding - Basic	127.9		134.6		129.5		135.8
NET EARNINGS (LOSS) PER SHARE - DILUTED:
Continuing operations	$ 3.06		$ 0.46		$ 5.32		$ 2.86
Discontinued operations	$ (0.01)		$ 0.26		$ (0.02)		$ 0.17
Total	$ 3.05		$ 0.72		$ 5.30		$ 3.03
Weighted average common shares outstanding - Diluted	129.7		136.8		131.7		138.1
DIVIDENDS PER SHARE	$ 0.30		$ 0.25		$ 0.80		$ 0.65
SUPPLEMENTAL INFORMATION:
(a) Includes excise taxes collected by our retail segment (excluding credits)	$ 148		$ 151		$ 441		$ 423

[1] Includes charges totaling $10 million and $41 million for premiums and unamortized debt issuance costs associated with the redemption of the 2019 Notes and 2020 Notes during the three and nine months ended September 30, 2014.

[2] Includes $54 million in refunds from a settlement of a rate proceeding from the California Public Utilities Commission for the nine months ended September 30, 2013 and the release of a $16 million legal reserve as a result of the favorable settlement of litigation for the three and nine months ended September 30, 2013.