Andeavor (TSO) 10-Q 2 May 14 2014 Q1 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	3 Months Ended
	Mar. 31, 2014	Apr. 28, 2014
Document and Entity Information [Abstract]	'	'
Entity Registrant Name	'TESORO CORP /NEW/	'
Entity Central Index Key	'0000050104	'
Document Type	'10-Q	'
Document Period End Date	31-Mar-14	'
Amendment Flag	'false	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q1	'
Current Fiscal Year End Date	'--12-31	'
Entity Well-known Seasoned Issuer	'Yes	'
Entity Voluntary Filers	'No	'
Entity Current Reporting Status	'Yes	'
Entity Filer Category	'Large Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	129,324,068

Condensed_Statements_of_Consol

Condensed Statements of Consolidated Operations (Unaudited) (USD $)	3 Months Ended
In Millions, except Per Share data, unless otherwise specified	Mar. 31, 2014		Mar. 31, 2013
Income Statement [Abstract]	'		'
REVENUES (a)	$9,933		$7,347
COSTS AND EXPENSES:	'		'
Cost of sales (a)	8,948		6,563
Operating expenses	591		368
Selling, general and administrative expenses	31		111
Depreciation and amortization expense	130		105
(Gain) loss on asset disposals and impairments	-5		7
OPERATING INCOME	238		193
Interest and financing costs, net	-77	[1]	-30
Other expense, net	-1		0
EARNINGS BEFORE INCOME TAXES	160		163
Income tax expense	56		58
NET EARNINGS FROM CONTINUING OPERATIONS	104		105
Loss from discontinued operations, net of tax	-1		-1
NET EARNINGS	103		104
Less: Net earnings from continuing operations attributable to noncontrolling interest	25		11
NET EARNINGS ATTRIBUTABLE TO TESORO CORPORATION	78		93
NET EARNINGS (LOSS) ATTRIBUTABLE TO TESORO CORPORATION	'		'
Continuing operations	79		94
Discontinued operations	-1		-1
Total	78		93
NET EARNINGS (LOSS) PER SHARE - BASIC:	'		'
Continuing operations	$0.60		$0.69
Discontinued operations	($0.01)		($0.01)
Total	$0.59		$0.68
Weighted average common shares outstanding - Basic	131.3		137
NET EARNINGS (LOSS) PER SHARE - DILUTED:	'		'
Continuing operations	$0.59		$0.68
Discontinued operations	($0.01)		($0.01)
Total	$0.58		$0.67
Weighted average common shares outstanding - Diluted	133.8		139.6
DIVIDENDS PER SHARE	$0.25		$0.20
SUPPLEMENTAL INFORMATION:	'		'
(a) Includes excise taxes collected by our retail segment (excluding credits)	$141		$129
[1]	Includes charges totaling $31 million for premiums and unamortized debt issuance costs associated with the redemption of the 2019 Notes during the three months ended March 31, 2014.

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (Unaudited) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
CURRENT ASSETS	'	'
Cash and cash equivalents	$798	$1,238
Receivables, less allowance for doubtful accounts	1,696	1,313
Inventories	2,777	2,565
Prepayments and other current assets	199	210
Total Current Assets	5,470	5,326
NET PROPERTY, PLANT AND EQUIPMENT	6,895	6,875
OTHER NONCURRENT ASSETS, NET	1,203	1,188
Total Assets	13,568	13,389
CURRENT LIABILITIES	'	'
Accounts payable	2,915	2,596
Other current liabilities	721	812
Total Current Liabilities	3,636	3,408
DEFERRED INCOME TAXES	1,015	1,018
OTHER NONCURRENT LIABILITIES	653	655
Debt	2,829	2,823
COMMITMENTS AND CONTINGENCIES (Note L)	'	'
TESORO CORPORATION STOCKHOLDERS’ EQUITY	'	'
Common stock, par value $0.162/3; authorized 200,000,000 shares; 154,735,345 shares issued (154,712,627 in 2013)	26	26
Additional paid-in capital	1,187	1,186
Retained earnings	3,985	3,940
Treasury stock, 24,848,770 common shares (22,907,890 in 2013), at cost	-898	-798
Accumulated other comprehensive loss	-52	-52
Total Tesoro Corporation Stockholders’ Equity	4,248	4,302
NONCONTROLLING INTEREST	1,187	1,183
Total Equity	5,435	5,485
Total Liabilities and Equity	$13,568	$13,389

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheets (Unaudited) Condensed Consolidated Balance Sheets (Unaudited) (Parentheticals) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Millions, except Share data, unless otherwise specified
TESORO CORPORATION STOCKHOLDERS’ EQUITY	'	'
Common stock, par value (dollar per share)	$0.17	$0.17
Common stock, authorized shares (shares)	200,000,000	200,000,000
Common stock, shares issued (shares)	154,735,345	154,712,627
Treasury stock, common shares (shares)	24,848,770	22,907,890
Property, Plant and Equipment, Net	'	'
NET PROPERTY, PLANT AND EQUIPMENT	$6,895	$6,875
Debt	'	'
Debt	2,829	2,823
Tesoro Logistics LP	'	'
Property, Plant and Equipment, Net	'	'
NET PROPERTY, PLANT AND EQUIPMENT	1,379	1,368
Debt	'	'
Debt	$1,164	$1,164

Condensed_Statements_of_Consol1

Condensed Statements of Consolidated Cash Flows (Unaudited) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
CASH FLOWS FROM (USED IN) OPERATING ACTIVITIES	'	'
Net earnings	$103	$104
Adjustments to reconcile net earnings to net cash from (used in) operating activities:	'	'
Depreciation and amortization expense	130	106
Debt redemption charges	31	0
Stock-based compensation expense (benefit)	-18	52
Deferred charges	-60	-159
Other non-cash operating activities	7	5
Changes in current assets and current liabilities	-343	139
Net cash from (used in) operating activities	-150	247
CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES	'	'
Capital expenditures	-119	-125
Advanced payments made for Los Angeles Acquisition	0	-27
Other	10	2
Net cash used in investing activities	-109	-150
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES	'	'
Proceeds from debt offering	300	0
Repayments of debt	-301	0
Dividend payments	-33	-28
Net proceeds from issuance of Tesoro Logistics LP common units	0	392
Distributions to noncontrolling interest	-20	-14
Purchases of common stock	-100	-135
Premium paid on notes redemption	-19	0
Other	-8	21
Net cash from (used in) financing activities	-181	236
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	-440	333
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	1,238	1,639
CASH AND CASH EQUIVALENTS, END OF PERIOD	$798	$1,972

Basis_of_Presentation_Notes

Basis of Presentation (Notes)	3 Months Ended
	Mar. 31, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
BASIS OF PRESENTATION	'
	BASIS OF PRESENTATION
	As used in this report, the terms “Tesoro,” “we,” “us” or “our” may refer to Tesoro Corporation, one or more of its consolidated subsidiaries or all of them taken as a whole. The words “we,” “us” or “our” generally include Tesoro Logistics LP (“TLLP”) and its subsidiaries as consolidated subsidiaries of Tesoro Corporation with certain exceptions where there are transactions or obligations between TLLP and Tesoro Corporation or its other subsidiaries. When used in descriptions of agreements and transactions, “TLLP” or the “Partnership” refers to TLLP and its consolidated subsidiaries.
	The interim condensed consolidated financial statements and notes thereto of Tesoro Corporation and its subsidiaries have been prepared by management without audit according to the rules and regulations of the Securities and Exchange Commission (“SEC”). The accompanying condensed consolidated financial statements reflect all adjustments that, in the opinion of management, are necessary for a fair presentation of results for the periods presented. Such adjustments are of a normal recurring nature, unless otherwise disclosed.
	The consolidated balance sheet at December 31, 2013 has been condensed from the audited consolidated financial statements at that date. Certain information and notes normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) have been condensed or omitted pursuant to the SEC’s rules and regulations. However, management believes that the disclosures presented herein are adequate to present the information fairly. The accompanying condensed consolidated financial statements and notes should be read in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2013.
	We prepare our condensed consolidated financial statements in conformity with U.S. GAAP, which requires management to make estimates and assumptions that affect the reported amounts and disclosures of assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the periods presented. We review our estimates on an ongoing basis. Changes in facts and circumstances may result in revised estimates and actual results could differ from those estimates. The results of operations for any interim period are not necessarily indicative of results for the full year. Certain prior year balances have been aggregated or disaggregated in order to conform to the current year presentation. Due to there being no adjustments to accumulated other comprehensive income for the three months ended March 31, 2014 and 2013, consolidated statements of comprehensive income have been omitted.
	Our consolidated financial statements include TLLP, a variable interest entity. As the general partner of TLLP, we have the sole ability to direct the activities of TLLP that most significantly impact its economic performance. We are also considered to be the primary beneficiary for accounting purposes and are TLLP’s primary customer. Under our various long-term, fee-based commercial agreements with TLLP, transactions with us accounted for 88% and 93% of TLLP’s total revenues for the three months ended March 31, 2014, and 2013 respectively. TLLP does not derive a significant amount of revenue from third parties. However, in the event TLLP incurs a loss, our operating results will reflect TLLP’s loss, net of intercompany eliminations. See Note C for additional information relating to TLLP.
	On September 25, 2013, we completed the sale of all of our interest in Tesoro Hawaii, LLC, which operated a 94 thousand barrel per day (“Mbpd”) Hawaii refinery, retail stations and associated logistics assets (the “Hawaii Business”). Unless otherwise noted, the information in the notes to the condensed consolidated financial statements relates to our continuing operations.

Acquisitions_Notes

Acquisitions (Notes)	3 Months Ended
	Mar. 31, 2014
Business Combinations [Abstract]	'
ACQUISITIONS	'
	ACQUISITIONS
	Los Angeles Acquisition
	We acquired BP’s integrated Southern California refining, marketing and logistics business on June 1, 2013 from BP West Coast Products, LLC and other affiliated sellers (the “Los Angeles Acquisition”) consistent with our business strategy and providing us with an opportunity to combine two West Coast refining, marketing and logistics businesses resulting in a more efficient integrated refining, marketing and logistics system. The acquired assets include the 266 Mbpd Carson refinery located adjacent to our Wilmington refinery, related marine terminals, land terminals and pipelines. The assets also include the ARCO® brand and associated registered trademarks, as well as a master franchisee license for the ampm® convenience store brand and the supply rights to approximately 835 branded dealer-operated and branded wholesale stations in central and southern California, Nevada and Arizona. Additionally, we acquired an anode coke calcining operation and a 51% ownership in the Watson cogeneration facility, both located at the Carson refinery. We also assumed certain environmental liabilities, primarily remediation obligations. For additional information regarding the assumed environmental remediation obligations, see Note L.
	Our allocation of the Los Angeles Acquisition's $2.33 billion purchase price remains preliminary at March 31, 2014 as we continue to evaluate information about assumed environmental liabilities existing at the date of acquisition and finalize our appraisal of property, plant and equipment. Although the finalization of the appraisal and full evaluation of the liabilities may result in changes in the valuation of assets acquired and liabilities assumed within our measurement period, we believe these changes will not have a material impact on our liquidity, financial position, or results of operations.
	The table below presents the acquisition date purchase price allocation (in millions) through March 31, 2014:
	Receivables	$	197
	Inventories	1,096
	Prepayments and other current assets	14
	Property, plant and equipment	1,085
	Acquired intangibles, net	63
	Other noncurrent assets, net	112
	Other current liabilities	(25		)
	Other noncurrent liabilities	(179		)
	Debt	(36		)
	Total purchase price	$	2,327
	If the Los Angeles Acquisition had occurred prior to 2013, our pro forma revenues and net earnings would have been $10.7 billion and $176 million, respectively, for the three months ended March 31, 2013.

Tesoro_Logistics_LP_Notes

Tesoro Logistics LP (Notes)	3 Months Ended
	Mar. 31, 2014
Variable Interest Entity, Measure of Activity [Abstract]	'
TESORO LOGISTICS LP	'
	TESORO LOGISTICS LP
	TLLP is a publicly traded limited partnership that was formed to own, operate, develop and acquire logistics assets. Its assets are integral to the success of Tesoro’s refining and marketing operations and generate revenue by charging fees for gathering crude oil and for terminalling, transporting and storing crude oil and refined products. Tesoro Logistics GP, LLC (“TLGP”), a fully consolidated subsidiary, serves as the general partner of TLLP. We held an approximate 36% interest in TLLP at March 31, 2014 and December 31, 2013, including the general partner interest. This interest includes 3,855,824 common units, 15,254,890 subordinated units and 1,110,282 general partner units. All intercompany transactions with TLLP are eliminated upon consolidation.
	TLLP provides us with various pipeline transportation, trucking, terminal distribution, storage and coke-handling services under long-term, fee-based commercial agreements. Each of these agreements, with the exception of the storage and transportation services agreement, contain minimum volume commitments. We do not provide financial or equity support through any liquidity arrangements or financial guarantees to TLLP.

Discontinued_Operations_Discon

Discontinued Operations Discontinued Operations (Notes)	3 Months Ended
	Mar. 31, 2014
Discontinued Operations and Disposal Groups [Abstract]	'
DISCONTINUED OPERATIONS	'
	DISCONTINUED OPERATIONS
	On September 25, 2013, we completed the sale of all of the Hawaii Business and received gross proceeds of $539 million, including $75 million from the sale of assets and $464 million from the sale of inventory and other net working capital. Additional contingent consideration includes an earnout arrangement payable over three years for an aggregate amount of up to $40 million based on consolidated gross margins. Any income related to the earnout arrangement will not be recorded until it is considered realizable. We have also agreed to indemnify the purchaser for up to $15 million of environmental remediation costs related to the Hawaii Business, subject to limitations described in the purchase agreement, and retained responsibility for the resolution of certain Clean Air Act allegations as described in Note L. The asset retirement obligations were assumed by the purchaser upon close of the transaction; therefore, we will not incur any removal or other closure costs for this business.
	The results of operations for this business have been presented as discontinued operations in the condensed statements of consolidated operations for the three months ended March 31, 2014 and 2013. There were no revenues for the three months ended March 31, 2014. Revenues from the discontinued Hawaii Business for the three months ended March 31, 2013 were $809 million. We recorded losses, before and after tax, of $1 million related to the Hawaii Business for the three months ended March 31, 2014 and 2013.
	Cash flows related to the discontinued Hawaii Business have been combined with the cash flows from continuing operations in the condensed statements of consolidated cash flows for both periods presented. There were no cash flows for the three months ended March 31, 2014, however cash flows provided by operating activities for the three months ended March 31, 2013 were $102 million with no cash flows associated with investing activities.

Earnings_Per_Share_Notes

Earnings Per Share (Notes)	3 Months Ended
	Mar. 31, 2014
Earnings Per Share [Abstract]	'
EARNINGS PER SHARE	'
	EARNINGS PER SHARE
	We compute basic earnings per share by dividing net earnings attributable to Tesoro Corporation stockholders by the weighted average number of common shares outstanding during the period. Diluted earnings per share include the effects of potentially dilutive shares outstanding during the period.
	Our share calculations are presented below (in millions):
		Three Months Ended
		March 31,
		2014	2013
	Weighted average common shares outstanding	131.3	137
	Common stock equivalents	2.5	2.6
	Total diluted shares	133.8	139.6
	Potentially dilutive common stock equivalents are excluded from the calculation of diluted earnings per share if the effect of including such securities in the calculation would have been anti-dilutive. Anti-dilutive securities were 0.4 million shares and 0.2 million shares for the three months ended March 31, 2014 and 2013, respectively.

Inventories_Notes

Inventories (Notes)	3 Months Ended
	Mar. 31, 2014
Inventory Disclosure [Abstract]	'
INVENTORIES	'
	INVENTORIES
	Components of inventories were as follows (in millions):
		March 31,		December 31,
		2014		2013
	Domestic crude oil and refined products	$	1,904	$	1,847
	Foreign subsidiary crude oil	671		523
	Other inventories	202		195
	Total Inventories	$	2,777	$	2,565
	The total carrying value of our crude oil and refined product inventories was less than replacement cost by approximately$1.8 billion and $1.7 billion at March 31, 2014 and December 31, 2013, respectively.

Property_Plant_and_Equipment_N

Property, Plant and Equipment (Notes)	3 Months Ended
	Mar. 31, 2014
Property, Plant and Equipment [Abstract]	'
PROPERTY, PLANT AND EQUIPMENT	'
	PROPERTY, PLANT AND EQUIPMENT
	Property, plant and equipment, at cost, is as follows (in millions):
		March 31,			December 31,
		2014			2013
	Refining	$	6,679		$	6,611
	TLLP	1,530			1,504
	Retail	784			778
	Corporate	234			230
	Property, plant and equipment, at cost	9,227			9,123
	Accumulated depreciation	(2,332		)	(2,248		)
	Net property, plant and equipment	$	6,895		$	6,875
	We capitalize interest as part of the cost of major projects during the construction period. Capitalized interest totaled $5 million and $4 million for the three months ended March 31, 2014 and 2013, respectively, and is recorded as a reduction to net interest and financing costs in our condensed statements of consolidated operations.

Fair_Value_Measurements_Notes

Fair Value Measurements (Notes)	3 Months Ended
	Mar. 31, 2014
Fair Value Disclosures [Abstract]	'
FAIR VALUE MEASUREMENTS	'
	FAIR VALUE MEASUREMENTS
	We classify financial assets and financial liabilities into the following fair value hierarchy:
	•	level 1 - valued based on quoted prices in active markets for identical assets and liabilities;
	•	level 2 - valued based on quoted prices for similar assets and liabilities in active markets, and inputs other than quoted prices that are observable for the asset or liability; and
	•	level 3 - valued based on unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities.
	We measure fair value using level 1 inputs, when available, because they provide the most reliable evidence of fair value. Derivative instruments along with obligations for Renewable Identification Numbers (“RINs”) and cap and trade emission credits for the state of California (together with RINs, our “Environmental Credit Obligations”) are our only financial assets and financial liabilities measured at fair value on a recurring basis. We did not have any financial assets or liabilities classified as level 3 at March 31, 2014 or December 31, 2013. See Note I for further information on the Company’s derivative instruments.
	Our derivative instruments consist primarily of physical commodity forward purchase and sale contracts (“Forward Contracts”), exchange-traded futures (“Futures Contracts”), over-the-counter swaps (“OTC Swap Contracts”), options (“Options”), and over-the-counter options (“OTC Option Contracts”). Forward Contracts, OTC Swap Contracts, and OTC Option Contracts are valued using third-party broker quotes, industry pricing services and price curves derived from commodity exchange postings. These quotes are corroborated with market data and are categorized in level 2 of the fair value hierarchy. Futures Contracts are valued based on quoted prices from exchanges and are categorized in level 1 or level 2 of the fair value hierarchy based on the liquidity of the instrument. Options are valued using quoted prices from exchanges and are categorized in level 1 of the fair value hierarchy.
	Our Environmental Credit Obligations are based on our deficit for RINs and California cap and trade credits and the price of each as of the balance sheet date. These obligations are measured at fair value using quoted prices from independent pricing services and are categorized in level 2 of the fair value hierarchy. Our RINs obligation represents our deficit for the purchase of RINs to satisfy the requirement to blend biofuels into the products we have produced. RINs are assigned to biofuels produced or imported into the U.S. as required by the U.S. Environmental Protection Agency (“EPA”), which sets annual quotas for the percentage of biofuels that must be blended into transportation fuels consumed in the U.S. As a producer of petroleum transportation fuels, we are required to blend biofuels into the products we produce at a rate that will meet the EPA’s quota.  To the degree we are unable to blend at that rate, we must purchase RINs in the open market to satisfy the requirement.  The cap and trade emission credits for the state of California represent our deficit for the purchase of additional credits to satisfy emission reduction requirements mandated in California’s Assembly Bill 32 in each period for which our carbon emissions exceed the level set by the regulation.
	Financial assets and liabilities recognized at fair value in our condensed consolidated balance sheets by level within the fair value hierarchy were as follows (in millions):
		Level 1		Level 2		Level 3		Netting and Collateral (a)			Total as of
											31-Mar-14
	Assets:
	Commodity Futures Contracts	$	179	$	2	$	—	$	(117	)	$	64
	Commodity OTC Swap Contracts	—		1		—		—			1
	Commodity Forward Contracts	—		2		—		—			2
	Total Assets	$	179	$	5	$	—	$	(117	)	$	67
	Liabilities:
	Commodity Futures Contracts	$	192	$	4	$	—	$	(180	)	$	16
	Commodity OTC Swap Contracts	—		3		—		—			3
	Commodity Forward Contracts	—		1		—		—			1
	Environmental Credit Obligations	—		9		—		—			9
	Total Liabilities	$	192	$	17	$	—	$	(180	)	$	29
		Level 1		Level 2		Level 3		Netting and Collateral (a)			Total as of
											31-Dec-13
	Assets:
	Commodity Futures Contracts	$	136	$	4	$	—	$	(72	)	$	68
	Total Assets	$	136	$	4	$	—	$	(72	)	$	68
	Liabilities:
	Commodity Futures Contracts	$	156	$	2	$	—	$	(137	)	$	21
	Commodity Forward Contracts	—		1		—		—			1
	Environmental Credit Obligations	—		5		—		—			5
	Total Liabilities	$	156	$	8	$	—	$	(137	)	$	27
	________________
	(a)	Represents the impact of netting assets, liabilities and cash collateral when a legal right of offset exists. As of March 31, 2014 and December 31, 2013, cash collateral amounts of $63 million and $65 million, respectively, are netted with mark-to-market derivative assets.
	Certain of our derivative contracts, under master netting arrangements, include both asset and liability positions. We offset both the fair value amounts and any related cash collateral amounts recognized for multiple derivative instruments executed with the same counterparty when there is a legally enforceable right and an intention to settle net or simultaneously.
	We believe the carrying value of our other financial instruments, including cash and cash equivalents, receivables, accounts payable and certain accrued liabilities approximate fair value. Our fair value assessment incorporates a variety of considerations, including the short-term duration of the instruments (less than one percent of our trade receivables and payables are outstanding for greater than 90 days), and the expected future insignificance of bad debt expense, which includes an evaluation of counterparty credit risk. The borrowings under the Tesoro Corporation revolving credit facility (the “Revolving Credit Facility”), the TLLP senior secured revolving credit agreement (the “TLLP Revolving Credit Facility”) and our term loan credit facility agreement (the “Term Loan Credit Facility”), which include variable interest rates, approximate fair value. The fair value of our debt is based on prices from recent trade activity and is categorized in level 2 of the fair value hierarchy. The carrying value and fair value of our debt were approximately $2.8 billion and $2.9 billion, respectively, at both March 31, 2014 and December 31, 2013.

Derivative_Instruments_Notes

Derivative Instruments (Notes)	3 Months Ended
	Mar. 31, 2014
General Discussion of Derivative Instruments and Hedging Activities [Abstract]	'
DERIVATIVE INSTRUMENTS	'
	DERIVATIVE INSTRUMENTS
	The timing, direction and overall change in refined product prices versus crude oil prices has a significant impact on our profit margins, earnings and cash flows. Consequently, we use non-trading derivative instruments to manage exposure to commodity price risks associated with the purchase or sale of feedstocks, refined products and energy supplies to or from our refineries, terminals, retail operations and customers. We also use non-trading derivative instruments to manage price risks associated with inventories above or below our target levels. To achieve our objectives, we use derivative instruments such as Forward Contracts, Futures Contracts, OTC Swap Contracts, Options, and, OTC Option Contracts, which had remaining maturity dates within one year as of March 31, 2014. We are also exposed to exchange rate fluctuations on our purchases of Canadian crude oil. We enter into Forward Contracts of Canadian dollars to manage these exchange rate fluctuations.
	The accounting for changes in the fair value of a commodity derivative depends on whether we have elected the normal purchases and normal sales exception. Our recognition of derivatives using the normal purchase normal sales exception follows the accrual method of accounting whereas changes in fair value for all other derivatives are recorded each period using mark-to-market accounting.
	The primary derivative instruments that we use have the following characteristics. Forward Contracts are agreements to buy or sell the commodity at a predetermined price at a specified future date. Futures Contracts are standardized agreements, traded on a futures exchange, to buy or sell the commodity at a predetermined price at a specified future date. Options provide the right, but not the obligation to buy or sell the commodity at a specified price in the future. OTC Swap Contracts and OTC Option Contracts require cash settlement for the commodity based on the difference between a contracted fixed or floating price and the market price on the settlement date. Certain of these contracts require cash collateral if our liability position exceeds specified thresholds. We believe that we have minimal credit risk with respect to our counterparties.
	The following table presents the fair value (in millions) of our derivative instruments as of March 31, 2014 and December 31, 2013. The fair value amounts below are presented on a gross basis and do not reflect the netting of asset and liability positions permitted under the terms of our master netting arrangements including cash collateral on deposit with, or received from, brokers. We offset the recognized fair value amounts for multiple derivative instruments executed with the same counterparty in our financial statements when a legal right of offset exists. As a result, the asset and liability amounts below will not agree with the amounts presented in our condensed consolidated balance sheets.
				Derivative Assets							Derivative Liabilities
		Balance Sheet Location		March 31,				December 31,			March 31,			December 31,
				2014				2013			2014			2013
	Commodity Futures Contracts (a)	Prepayments and other current assets		$	181			$	140		$	196		$	158
	Commodity OTC Swap Contracts	Receivables		1				—			—			—
	Commodity OTC Swap Contracts	Accounts payable		—				—			3			—
	Commodity Forward Contracts	Receivables		2				—			—			—
	Commodity Forward Contracts	Accounts payable		—				—			1			1
	Total Gross Mark-to-Market Derivatives			184				140			200			159
	Less: Counterparty Netting and Cash Collateral (b)			(117		)		(72		)	(180		)	(137		)
	Total Net Fair Value of Derivatives			$	67			$	68		$	20		$	22
	________________
	(a)	We had derivative assets totaling $1 million and $3 million at March 31, 2014 and December 31, 2013, respectively, related to corn futures used to manage our biofuel exposure. Additionally, we had derivative liabilities totaling $4 million and $1 million at March 31, 2014 and December 31, 2013, respectively, related to corn futures.
	(b)	As of March 31, 2014 and December 31, 2013, cash collateral amounts of $63 million and $65 million, respectively, are netted with mark-to-market derivative assets.
	Gains (losses) for our mark-to market derivatives for the three months ended March 31, 2014 and 2013, were as follows (in millions):
		Three Months Ended
		March 31,
		2014				2013
	Commodity Futures Contracts	$	—			$	(26	)
	Commodity OTC Swap Contracts	(1		)		—
	Commodity Forward Contracts	1				(2		)
	Foreign Currency Forward Contracts	(2		)		(2		)
	Total Loss on Mark-to-Market Derivatives	$	(2	)		$	(30	)
	The income statement location of gains (losses) for our mark-to market derivatives above were as follows (in millions):
		Three Months Ended
		March 31,
		2014				2013
	Revenues	$	1			$	1
	Cost of sales	(1		)		(22		)
	Other expense, net	(2		)		(2		)
	Net loss from discontinued operations	—				(7		)
	Total Loss on Mark-to-Market Derivatives	$	(2	)		$	(30	)
	Open Long (Short) Positions
	All of our open positions are scheduled to mature within one year. At March 31, 2014, we had open Forward Contracts to purchase CAD $50 million that matured on April 25, 2014. The information below presents the net volume of outstanding commodity contracts by type of instrument and year of maturity as of March 31, 2014 (volumes in thousands of barrels):
	Mark-to-Market Derivatives
	Derivative instrument and Year of maturity		Long (Short) Contract Volumes
	Futures
	2014		-11,937
	OTC Swaps
	2014		4,300
	Forwards
	2014		-306
	Options
	2014		600
	Additionally, as of March 31, 2014, we held short futures positions totaling 5.8 million bushels of corn maturing in 2014.

Debt_Notes

Debt (Notes)	3 Months Ended
	Mar. 31, 2014
Debt Disclosure [Abstract]	'
DEBT	'
	DEBT
	Our total debt balance at March 31, 2014 and December 31, 2013 was as follows (in millions):
		March 31,			December 31,
		2014			2013
	Total debt (a)	$	2,835		$	2,829
	Less: Current maturities	6			6
	Debt, less current maturities	$	2,829		$	2,823
	________________
	(a)	Total debt related to TLLP, which is non-recourse to Tesoro, except for TLGP, was $1.2 billion at both March 31, 2014 and December 31, 2013, respectively.
	5.125% Senior Notes due 2024
	Effective March 18, 2014, we issued $300 million aggregate principal amount of 5.125% Senior Notes due 2024 (the “2024 Notes”).  The 2024 Notes have a ten-year maturity and are subject to optional redemption by Tesoro beginning April 1, 2019 at premiums of 2.563% through March 31, 2020; 1.708% from April 1, 2020 through March 31, 2021; 0.854% from April 1, 2021 through March 31, 2022; and at par thereafter, or at a make-whole plus accrued and unpaid interest before April 1, 2019. In addition, at any time prior to April 1, 2017, we may redeem up to 35% of the aggregate principal amount at 105.125% of face value with proceeds from certain equity issuances. The terms of the 2024 Notes are generally less restrictive than those contained in our senior notes due in 2017 and 2022, and omit some limitations on restricted payments, asset sales and other transactions that are included in those senior notes. These notes are unsecured obligations and guaranteed by certain of our domestic subsidiaries, excluding TLGP and TLLP and its subsidiaries. The proceeds from the issuance of the 2024 Notes, together with cash on hand, were used to pay for fees and expenses related to the note issuance and to redeem all outstanding 9.750% Senior Notes due 2019 (the “2019 Notes") for an aggregate purchase price of $329 million, including accrued interest and premiums. In connection with the redemption of the 2019 Notes, we incurred charges totaling $31 million comprised of premiums paid on the 2019 Notes of $19 million and non-cash charges associated with the expensing of $8 million and $4 million of unamortized debt discount and issuance costs, respectively. Our debt redemption charges for the 2019 Notes are recorded in net interest and financing costs in our condensed statements of consolidated operations.
	Credit Facilities Overview
	We had available capacity under our credit agreements as follows at March 31, 2014 (in millions):
		Total			Amount Borrowed as of March 31, 2014			Outstanding		Available Capacity		Expiration
		Capacity						Letters of Credit
	Tesoro Corporation Revolving	$	3,000		$	—		$	795	$	2,205	January 4, 2018
	Credit Facility (a)
	TLLP Revolving Credit Facility	575			—			—		575		December 31, 2017
	Term Loan Credit Facility	398			398			—		—		30-May-16
	Letter of Credit Facilities	1,712			—			858		854
	Total credit agreements	$	5,685		$	398		$	1,653	$	3,634
	________________
	(a)	Borrowing base is the lesser of the amount of the periodically adjusted borrowing base or the agreement’s total capacity.
	As of March 31, 2014, our credit facilities were subject to the following expenses and fees:
	Credit Facility		30 day Eurodollar (LIBOR) Rate	Eurodollar Margin		Base Rate	Base Rate Margin		Commitment Fee
									(unused portion)
	Tesoro Corporation Revolving Credit Facility		0.15%	1.50%		3.25%	0.50%		0.38%
	($3.0 billion) (b)
	TLLP Revolving Credit Facility ($575 million) (c)		0.15%	2.50%		3.25%	1.50%		0.50%
	Term Loan Credit Facility ($398 million) (b)		0.15%	2.25%		3.25%	1.25%		—%
	________________
	(b)	We can elect the interest rate to apply to the facility between a base rate plus the base rate margin, or a Eurodollar rate, for the applicable term, plus the Eurodollar margin at the time of the borrowing. The applicable margin on the Revolving Credit Facility varies primarily based upon our credit ratings. Letters of credit outstanding under the Revolving Credit Facility incur fees at the Eurodollar margin rate.
	(c)	TLLP has the option to elect if the borrowings will bear interest at either, a base rate plus the base rate margin or a Eurodollar rate, for the applicable period, plus the Eurodollar margin at the time of the borrowing. The applicable margin varies based upon a certain leverage ratio, as defined by the TLLP Revolving Credit Facility. TLLP incurs commitment fees for the unused portion of the TLLP Revolving Credit Facility. Letters of credit outstanding under the Revolving Credit Facility incur fees at the Eurodollar margin rate.
	Tesoro Corporation Revolving Credit Facility
	At March 31, 2014, our Revolving Credit Facility provided for borrowings (including letters of credit) up to the lesser of the amount of a periodically adjusted borrowing base of approximately $3.6 billion, consisting of Tesoro’s eligible cash and cash equivalents, receivables and petroleum inventories, net of the standard reserve as defined, or the Revolving Credit Facility’s total capacity of $3.0 billion. The total available capacity can be increased up to an aggregate of $4.0 billion, subject to receiving increased commitments from the lenders; however, we must offer to reduce the commitments by at least $500 million on or prior to November 21, 2014 and by an additional $500 million on or prior to May 21, 2015.
	TLLP Revolving Credit Facility
	The TLLP Revolving Credit Facility provided for total loan availability of $575 million as of March 31, 2014, and TLLP may request that the loan availability be increased up to an aggregate of $650 million, subject to receiving increased commitments from the lenders. The TLLP Revolving Credit Facility is non-recourse to Tesoro, except for TLGP, and is guaranteed by all of TLLP’s subsidiaries and secured by substantially all of TLLP’s assets. Borrowings are available under the TLLP Revolving Credit Facility up to the total loan availability of the facility. There were no borrowings outstanding under the TLLP Revolving Credit Facility as of March 31, 2014.
	Term Loan Credit Facility
	We entered into the Term Loan Credit Facility in January 2013, which allowed us to borrow up to an aggregate of $500 million. We borrowed $500 million on May 30, 2013, to fund a portion of the Los Angeles Acquisition. The obligations under the Term Loan Credit Facility are secured by all equity interests of Tesoro Refining & Marketing Company LLC and Tesoro Alaska Company, the Tesoro and USA Gasoline trademarks and those trademarks containing the name “ARCO” acquired in the Los Angeles Acquisition and junior liens on certain assets. The Term Loan Credit Facility may be repaid at any time but amounts may not be re-borrowed. The borrowings under our Term Loan Credit Facility incurred interest at a rate of 2.40% as of March 31, 2014.
	Letter of Credit Agreements
	The Revolving Credit Facility allows us to obtain letters of credit under separate letter of credit agreements for foreign crude oil purchases. Our uncommitted letter of credit agreements had $858 million outstanding as of March 31, 2014. Capacity under these letter of credit agreements is available on an uncommitted basis and can be terminated by either party at any time.

Benefit_Plans_Notes

Benefit Plans (Notes)	3 Months Ended
	Mar. 31, 2014
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]	'
BENEFIT PLANS	'
	BENEFIT PLANS
	Tesoro sponsors four defined benefit pension plans, including one funded qualified employee retirement plan and three unfunded nonqualified executive plans. Although our funded employee retirement plan fully meets all funding requirements under applicable laws and regulations, we voluntarily contributed $15 million during the three months ended March 31, 2014 to improve the funded status of the plan. Tesoro also provides other postretirement health care benefits to retirees who met certain service requirements and were participating in our group health insurance program at retirement.
	The components of pension and other postretirement benefit expense (income) for the three months ended March 31, 2014 and 2013 were (in millions):
		Pension Benefits						Other Postretirement Benefits
		Three Months Ended						Three Months Ended
		March 31,						March 31,
		2014			2013			2014			2013
	Service cost	$	13		$	8		$	1		$	1
	Interest cost	9			7			1			1
	Expected return on plan assets	(8		)	(6		)	—			—
	Amortization of prior service credit	—			—			(9		)	(9		)
	Recognized net actuarial loss	4			7			1			2
	Net Periodic Benefit Expense (Income)	$	18		$	16		$	(6	)	$	(5	)

Commitments_and_Contingencies_

Commitments and Contingencies (Notes)	3 Months Ended
	Mar. 31, 2014
Commitments and Contingencies Disclosure [Abstract]	'
COMMITMENTS AND CONTINGENCIES	'
	COMMITMENTS AND CONTINGENCIES
	Environmental Matters
	We are subject to extensive federal, state and local environmental laws and regulations. These laws, which change frequently, regulate the discharge of materials into the environment and may require us to remove or mitigate the environmental effects of the disposal or release of petroleum or chemical substances at various sites, install additional controls or make other modifications to certain emission sources, equipment or facilities.
	We are incurring and expect to continue to incur expenses for environmental remediation liabilities at a number of currently and previously owned or operated refining, pipeline, terminal and retail station properties. We have accrued liabilities for these expenses and believe these accruals are adequate based on current information and projections that can be reasonably estimated. Additionally, we have recognized environmental remediation liabilities assumed in past acquisitions from the prior owners that include amounts estimated for site cleanup activities and monitoring activities arising from operations at refineries, certain terminals and pipelines, and retail stations prior to the dates of our acquisitions. Our environmental accruals are based on estimates including engineering assessments, and it is possible that our projections will change and that additional costs will be recorded as more information becomes available.
	Our accruals for environmental expenditures totaled $270 million and $262 million at March 31, 2014 and December 31, 2013, including $28 million and $24 million for TLLP, respectively. These accruals include $220 million and $216 million at March 31, 2014 and December 31, 2013, respectively, related to amounts estimated for site cleanup activities arising from operations at our Martinez refinery prior to August 2000 and operations of assets acquired in the Los Angeles Acquisition prior to June 1, 2013. We cannot reasonably determine the full extent of remedial activities that may be required at the Martinez refinery and continue to evaluate information related to assets acquired in the Los Angeles Acquisition within our measurement period not to exceed one year from acquisition on June 1, 2013. It is possible that we will identify additional investigation and remediation costs for site cleanup activities at our Martinez refinery and sites associated with the Los Angeles Acquisition as more information becomes available. Our estimates for site cleanup activities reflect amounts to which we are responsible under applicable cost-sharing arrangements. We also have insurance policies related to certain matters at our Martinez refinery that provide coverage up to $190 million for expenditures in excess of $50 million in self-insurance. We have not recognized possible insurance recoveries because the insurer has challenged coverage and filed a declaratory relief action in federal court.
	Washington Refinery Fire
	The naphtha hydrotreater unit at our Washington refinery was involved in a fire in April 2010, which fatally injured seven employees and rendered the unit inoperable. The Washington State Department of Labor & Industries (“L&I”), the U.S. Chemical Safety and Hazard Investigation Board (“CSB”) and the EPA initiated separate investigations of the incident. L&I completed its investigation in October 2010, issued citations and assessed a $2.4 million fine, which we appealed. L&I reassumed jurisdiction of the citation and affirmed the allegations in December 2010. We disagree with L&I’s characterizations of operations at our Washington refinery and believe, based on available evidence and scientific reviews, that many of the agency’s conclusions are mistaken. We filed an appeal of the citation in January 2011. In separate September 2013 and November 2013 orders, the Board of Industrial Insurance Appeals granted partial summary judgment in our favor and dismissed most of the citations. We have established an accrual for this matter although we cannot currently estimate the final amount or timing of its resolution. The outcome of this matter will not have a material impact on our liquidity, financial position, or results of operations.
	On May 1, 2014, the CSB finalized its investigation report on the April 2010 Washington refinery naphtha hydrotreater fire. This matter will not have a material impact on our liquidity, financial position, or results of operations.
	The EPA, in conjunction with the U.S. Department of Justice (“DOJ”), is continuing its criminal investigation of the Washington naphtha hydrotreater fire. We cannot predict what action, if any, the EPA and DOJ will take. As a result, we cannot currently estimate the amount or timing of the resolution of any action that may result from this investigation.
	We received a NOV from the EPA alleging 46 violations of the Clean Air Act Risk Management Plan requirements at our Washington refinery on November 20, 2013. The EPA conducted an investigation of the refinery in 2011, following the April 2010 fire in the naphtha hydrotreater unit. While we are evaluating the allegations and cannot currently estimate the amount or timing of the resolution of this matter, we believe the outcome will not have a material impact on our liquidity, financial position, or results of operations.
	Other Matters
	In the ordinary course of business, we become party to lawsuits, administrative proceedings and governmental investigations, including environmental, regulatory and other matters. Large, and sometimes unspecified, damages or penalties may be sought from us in some matters. We have not established accruals for these matters unless a loss is probable, and the amount of loss is currently estimable.
	Legal
	We are a defendant, along with other manufacturing, supply and marketing defendants, in a lawsuit brought by the Orange County Water District, alleging methyl tertiary butyl ether (“MTBE”) contamination in groundwater. The lawsuit is proceeding in the United States District Court of the Southern District of New York and the defendants are being sued for having manufactured MTBE and having manufactured, supplied and distributed gasoline containing MTBE. The plaintiff alleges, in part, that the defendants are liable for manufacturing or distributing a defective product. The suit generally seeks individual, unquantified compensatory and punitive damages and attorney’s fees. We intend to vigorously assert our defenses against this claim. While we cannot currently estimate the final amount or timing of the resolution of this matter, we have established an accrual and believe that the outcome will not have a material impact on our liquidity, financial position, or results of operations.
	Environmental
	The EPA has alleged that we have violated certain Clean Air Act regulations at our Alaska, Washington, Martinez, North Dakota and Utah refineries. We also retained the responsibility for resolving similar allegations relating to our former Hawaii refinery, which we sold in September 2013. We previously received a notice of violation (“NOV”) in March 2011 from the EPA alleging violations of Title V of the Clean Air Act at our Alaska refinery, which arose from a 2007 state of Alaska inspection and inspections by the EPA in 2008 and 2010. We also previously received NOVs in 2005 and 2008 alleging violations of the Clean Air Act at our Washington refinery. We are continuing discussions of all EPA claims with the EPA and the DOJ. The ultimate resolution of these matters could have a material impact on our future interim or annual results of operations, as we may be required to incur material capital expenditures and/or civil penalties. However, we do not believe that the outcome will have a material impact on our liquidity or financial position.
	We have investigated conditions at certain active wastewater treatment units at our Martinez refinery pursuant to an order received in 2004 from the San Francisco Bay Regional Water Quality Control Board that named us as well as two previous owners of the Martinez refinery.  We cannot currently estimate the amount of the ultimate resolution of the order, but we believe it will not have a material adverse impact on our liquidity, financial position, or results of operations.
	Tax
	We are subject to extensive federal, state and foreign tax laws and regulations. Newly enacted tax laws and regulations, and changes in existing tax laws and regulations, could result in increased expenditures in the future. We are also subject to audits by federal, state and foreign taxing authorities in the normal course of business. It is possible that tax audits could result in claims against us in excess of recorded liabilities. We believe that resolution of any such claim(s) would not have a material impact on our liquidity, financial position, or results of operations. It is reasonably possible that state tax litigation related to certain state income apportionment matters may be resolved in 2014.  Because the tax was fully paid in prior years, the unrecognized tax benefit of $11 million would be eliminated without impacting expense.

Stockholders_Equity_Notes

Stockholders' Equity (Notes)	3 Months Ended
	Mar. 31, 2014
Stockholders' Equity Attributable to Parent [Abstract]	'
STOCKHOLDERS' EQUITY	'
	STOCKHOLDERS’ EQUITY
	Changes to equity during the three months ended March 31, 2014 are presented below (in millions):
		Tesoro			Noncontrolling			Total Equity
		Corporation			Interest
		Stockholders’
		Equity
	Balance at December 31, 2013	$	4,302		$	1,183		$	5,485
	Net earnings	78			25			103
	Purchases of common stock	(100		)	—			(100		)
	Dividend payments	(33		)	—			(33		)
	Distributions to noncontrolling interest	—			(20		)	(20		)
	Other	1			(1		)	—
	Balance at March 31, 2014	$	4,248		$	1,187		$	5,435
	We issued less than 0.1 million shares and 0.9 million shares for proceeds of $1 million and $32 million primarily for stock option exercises under our equity-based compensation plans during the three months ended March 31, 2014 and 2013, respectively.
	Share Repurchase Programs
	We are authorized by our Board under previously disclosed programs to purchase shares of our common stock in open market transactions at our discretion, to offset the dilutive effect of stock-based compensation awards and to meet our obligations under employee benefit and compensation plans, including the exercise of stock options, vesting of restricted stock and to fulfill other stock compensation requirements. The Board’s authorization has no time limit and may be suspended or discontinued at any time. Under these programs, we purchased approximately 1.9 million shares and 2.6 million shares of our common stock for approximately $100 million and $135 million during the three months ended March 31, 2014 and 2013, respectively.
	Preferred Stock
	We have 5.0 million shares of preferred stock authorized with no par value per share. No shares of preferred stock were outstanding as of March 31, 2014 and December 31, 2013.
	Cash Dividends
	On February 5, 2014, our Board declared a quarterly cash dividend on common stock of $0.25 per share, payable on March 14, 2014 to shareholders of record at the close of business on February 28, 2014, which resulted in a cash payment of $33 million during the three months ended March 31, 2014. On April 30, 2014, our Board declared a cash dividend of $0.25 per share, payable on June 13, 2014 to shareholders of record on May 30, 2014.
	Our Revolving Credit Facility, senior notes and Term Loan Credit Facility each limit our ability to make certain restricted payments (as defined in our debt agreements), which include dividends, purchases of our stock or voluntary prepayments of subordinate debt. The aggregate amount of restricted payments cannot exceed an amount defined in each of the debt agreements. The indentures for our senior notes also limit certain of our subsidiaries’ ability to make certain payments and distributions.

StockBased_Compensation_Notes

Stock-Based Compensation (Notes)	3 Months Ended
	Mar. 31, 2014
Share-based Compensation [Abstract]	'
STOCK-BASED COMPENSATION	'
	STOCK-BASED COMPENSATION
	Stock-based compensation expense (benefit), including discontinued operations, was as follows (in millions):
		Three Months Ended
		March 31,
		2014			2013
	Stock appreciation rights	$	(18	)	$	39
	Performance share awards	(3		)	8
	Market stock units	3			4
	Other stock-based awards	—			1
	Total Stock-Based Compensation Expense (Benefit)	$	(18	)	$	52
	We have aggregated expenses for certain award types as they are not considered significant. The income tax effect recognized in the income statement for stock-based compensation was an expense of $7 million and a benefit of $20 million for the three months ended March 31, 2014 and 2013, respectively. The reduction in current taxes payable recognized from tax deductions resulting from exercises and vestings under all of our stock-based compensation arrangements totaled $3 million and $17 million for the three months ended March 31, 2014 and 2013, respectively.
	Stock Appreciation Rights
	A stock appreciation right (“SAR”) entitles an employee to receive cash in an amount equal to the excess of the fair market value of one share of common stock on the date of exercise over the grant price of the SAR. The fair value of each SAR is estimated at the end of each reporting period using the Black-Scholes option-pricing model. We have not granted any SARs since 2010. We paid cash of $4 million and $18 million to settle 0.2 million and 0.9 million SARs that were exercised during the three months ended March 31, 2014 and 2013, respectively. We had $54 million and $76 million recorded in accrued liabilities associated with our SARs awards at March 31, 2014 and December 31, 2013, respectively.
	Performance Share Awards
	During the three months ended March 31, 2014, we granted 0.2 million performance share awards, including awards with performance and market conditions, at a weighted average grant date fair value of $53.89 per share under the amended and restated 2011 Long-Term Incentive Plan (“2011 Plan”). These equity awards can range from 0% to 200% of the number of original shares granted and are tied to performance conditions or market conditions over the performance period. These performance share awards vest at the end of the performance period. The fair value of performance share awards are estimated using the market price of our common stock on the grant date or using a Monte Carlo simulation model on the grant date. The value ultimately paid for performance share awards tied to performance or market conditions, which are measured against our performance peer group and the S&P 500 Index, is based on return on capital employed or relative total shareholder return, respectively. The estimated fair value of these performance share awards is amortized over a three-year vesting period using the straight-line method.
	Market Stock Units
	We granted 0.4 million market stock units at a weighted average grant date fair value of $59.06 per unit under the 2011 Plan during the three months ended March 31, 2014. These market stock units vest at the end of a three-year performance period. The number of shares ultimately issued will be based on Tesoro’s stock price changes over the performance period. The market stock units’ potential payout can range from 50-200% of targeted award value, unless the average closing stock price at vesting has decreased more than 50% from the average closing stock price at the grant date in which case no market stock units will be paid out. The fair value of each market stock unit is estimated on the grant date using a Monte Carlo simulation model. The estimated fair value of these market stock units is amortized over a three-year vesting period using the straight-line method.

Operating_Segments_Notes

Operating Segments (Notes)	3 Months Ended
	Mar. 31, 2014
Segment Reporting [Abstract]	'
OPERATING SEGMENTS	'
	OPERATING SEGMENTS
	The Company’s revenues are derived from three operating segments, refining, TLLP and retail. We own and operate six petroleum refineries located in California, Washington, Alaska, North Dakota and Utah that manufacture gasoline and gasoline blendstocks, jet fuel, diesel fuel, residual fuel oil and other refined products. We sell these refined products, together with refined products purchased from third parties, at wholesale through terminal facilities and other locations and opportunistically export refined products to foreign markets. TLLP’s assets and operations include certain crude oil gathering assets and crude oil and refined products terminalling and transportation assets acquired from Tesoro and other third parties. Revenues from the TLLP segment are generated by charging fees for gathering crude oil and for terminalling, transporting and storing crude oil and refined products. Our retail segment sells gasoline, diesel fuel and convenience store items through company-operated retail stations and branded jobber/dealers in 17 states. Since we do not have significant operations in foreign countries, revenue generated in and long-lived assets located in foreign countries are not material to our operations.
	We evaluate the performance of our segments based primarily on segment operating income. Segment operating income includes those revenues and expenses that are directly attributable to management of the respective segment. Intersegment sales from refining to retail are made at prices which approximate market. TLLP revenues include intersegment transactions with our refining segment at prices which we believe are no less favorable to either party than those that could have been negotiated with unaffiliated parties with respect to similar services. Income taxes, other expense, net, interest and financing costs, net, corporate depreciation and corporate general and administrative expenses are excluded from segment operating income.
	Segment information related to continuing operations is as follows:
		Three Months Ended
		March 31,
		2014			2013
		(In millions)
	Revenues
	Refining:
	Refined products	$	9,500		$	6,744
	Crude oil resales and other	272			469
	TLLP:
	Crude oil gathering	25			22
	Terminalling and transportation	100			30
	Retail:
	Fuel (a)	3,024			1,507
	Merchandise and other	61			48
	Intersegment sales	(3,049		)	(1,473		)
	Total Revenues	$	9,933		$	7,347
	Segment Operating Income
	Refining	$	183		$	259
	TLLP (b)	62			24
	Retail	19			15
	Total Segment Operating Income	264			298
	Corporate and unallocated costs (c)	(26		)	(105		)
	Operating Income	238			193
	Interest and financing costs, net (d)	(77		)	(30		)
	Other expense, net	(1		)	—
	Earnings Before Income Taxes	$	160		$	163
	Depreciation and Amortization Expense
	Refining	$	101		$	88
	TLLP	16			4
	Retail	10			8
	Corporate	3			5
	Total Depreciation and Amortization Expense	$	130		$	105
	Capital Expenditures
	Refining	$	68		$	99
	TLLP	26			10
	Retail	5			7
	Corporate	4			3
	Total Capital Expenditures	$	103		$	119
	________________
	(a)	Federal and state motor fuel taxes on sales by our retail segment are included in both revenues and cost of sales in our condensed statements of consolidated operations. These taxes totaled $141 million and $129 million for the three months ended March 31, 2014 and 2013, respectively.
	(b)	We present TLLP’s segment operating income net of general and administrative expenses totaling $3 million and $4 million representing TLLP’s corporate costs for the three months ended March 31, 2014 and 2013, respectively, that are not allocated to TLLP’s operating segments.
	(c)	Includes stock-based compensation benefit of $18 million and expense of $49 million for the three months ended March 31, 2014 and 2013, respectively. The significant impact to stock-based compensation expense during the three months ended March 31, 2014 compared to the prior periods is primarily a result of changes in Tesoro’s stock price.
	(d)	Includes charges totaling $31 million for premiums and unamortized debt issuance costs associated with the redemption of the 2019 Notes during the three months ended March 31, 2014.

Condensed_Consolidating_Financ

Condensed Consolidating Financial Information (Notes)	3 Months Ended
	Mar. 31, 2014
Condensed Financial Information of Parent Company Only Disclosure [Abstract]	'
CONDENSED CONSOLIDATING FINANCIAL INFORMATION	'
	CONDENSED CONSOLIDATING FINANCIAL INFORMATION
	Separate condensed consolidating financial information of Tesoro Corporation (the “Parent”), subsidiary guarantors and non-guarantors are presented below. At March 31, 2014, Tesoro and certain subsidiary guarantors have fully and unconditionally guaranteed our 4.250% Senior Notes due 2017, 5.375% Senior Notes due 2022, and 5.125% Senior Notes due 2024. TLLP, in which we had a 36% ownership interest as of March 31, 2014, and other subsidiaries have not guaranteed these obligations. As a result of these guarantee arrangements, we are required to present the following condensed consolidating financial information, which should be read in conjunction with the accompanying condensed consolidated financial statements and notes thereto. The following condensed consolidating financial information is provided as an alternative to providing separate financial statements for guarantor subsidiaries. Separate financial statements of Tesoro’s subsidiary guarantors are not included because the guarantees are full and unconditional and these subsidiary guarantors are 100% owned and are jointly and severally liable for Tesoro’s outstanding senior notes. The information is presented using the equity method of accounting for investments in subsidiaries. Additionally, the results of operations of the Hawaii Business have been reported as discontinued operations in these condensed consolidating statements of operations and comprehensive income for the three months ended March 31, 2014 and 2013.
	Condensed Consolidating Statement of Operations
	for the Three Months Ended March 31, 2014
	(In millions)
		Parent			Guarantor			Non-			Eliminations			Consolidated
					Subsidiaries			Guarantors
	REVENUES	$	—		$	11,564		$	1,610		$	(3,241	)	$	9,933
	COSTS AND EXPENSES:
	Cost of sales	—			10,664			1,476			(3,192		)	8,948
	Operating, selling, general and administrative expenses	1			612			58			(49		)	622
	Depreciation and amortization expense	—			113			17			—			130
	Gain on asset disposals and impairments	—			(1		)	(4		)	—			(5		)
	OPERATING INCOME (LOSS)	(1		)	176			63			—			238
	Equity in earnings of subsidiaries	86			12			100			(198		)	—
	Interest and financing costs, net	(8		)	(59		)	(18		)	8			(77		)
	Other income (expense), net	—			(1		)	8			(8		)	(1		)
	EARNINGS BEFORE INCOME TAXES	77			128			153			(198		)	160
	Income tax expense (benefit) (a)	(1		)	51			6			—			56
	NET EARNINGS FROM CONTINUING OPERATIONS	78			77			147			(198		)	104
	Loss from discontinued operations, net of tax	—			(1		)	—			—			(1		)
	NET EARNINGS	78			76			147			(198		)	103
	Less: Net earnings from continuing operations attributable to noncontrolling interest	—			—			25			—			25
	NET EARNINGS ATTRIBUTABLE TO TESORO CORPORATION	$	78		$	76		$	122		$	(198	)	$	78
	_______________
	(a)	The income tax expense (benefit) reflected in each column does not include any tax effect of the equity in earnings from corporate subsidiaries, but does include the tax effect of the corporate partners’ share of partnership income.
	Condensed Consolidating Statement of Operations
	for the Three Months Ended March 31, 2013
	(In millions)
		Parent			Guarantor			Non-			Eliminations			Consolidated
					Subsidiaries			Guarantors
	REVENUES	$	—		$	9,115		$	822		$	(2,590	)	$	7,347
	COSTS AND EXPENSES:
	Cost of sales	—			8,397			756			(2,590		)	6,563
	Operating, selling, general and administrative expenses	1			450			28			—			479
	Depreciation and amortization expense	—			100			5			—			105
	Loss on asset disposals and impairments	—			4			3			—			7
	OPERATING INCOME (LOSS)	(1		)	164			30			—			193
	Equity in earnings (loss) of subsidiaries	96			(6		)	44			(134		)	—
	Interest and financing costs, net	(2		)	(25		)	(5		)	2			(30		)
	Other income (expense), net	—			—			2			(2		)	—
	EARNINGS BEFORE INCOME TAXES	93			133			71			(134		)	163
	Income tax expense (a)	—			55			3			—			58
	NET EARNINGS FROM CONTINUING OPERATIONS	93			78			68			(134		)	105
	Loss from discontinued operations, net of tax	—			(1		)	—			—			(1		)
	NET EARNINGS	93			77			68			(134		)	104
	Less: Net earnings from continuing operations attributable to noncontrolling interest	—			—			11			—			11
	NET EARNINGS ATTRIBUTABLE TO TESORO CORPORATION	$	93		$	77		$	57		$	(134	)	$	93
	_______________
	(a)	The income tax expense reflected in each column does not include any tax effect of the equity in earnings from corporate subsidiaries, but does include the tax effect of the corporate partners’ share of partnership income.
	Condensed Consolidating Balance Sheet as of March 31, 2014
	(In millions)
		Parent			Guarantor			Non-			Eliminations			Consolidated
					Subsidiaries			Guarantors
	ASSETS
	Current Assets:
	Cash and cash equivalents	$	—		$	726		$	72		$	—		$	798
	Receivables, less allowance for doubtful accounts	—			1,326			370			—			1,696
	Inventories	—			2,106			671			—			2,777
	Prepayments and other current assets	91			95			69			(56		)	199
	Total Current Assets	91			4,253			1,182			(56		)	5,470
	Net Property, Plant and Equipment	—			5,438			1,457			—			6,895
	Investment in Subsidiaries	5,323			36			1,615			(6,974		)	—
Long-Term Receivables from Affiliates	2,982			—			—			(2,982		)	—
Long-Term Intercompany Note Receivable	—			—			1,134			(1,134		)	—
Other Noncurrent Assets, Net	55			1,110			38			—			1,203
Total Assets	$	8,451		$	10,837		$	5,426		$	(11,146	)	$	13,568
LIABILITIES AND EQUITY
Current Liabilities:
Accounts payable	$	1		$	2,411		$	503		$	—		$	2,915
Other current liabilities	116			563			98			(56		)	721
Total Current Liabilities	117			2,974			601			(56		)	3,636
Long-Term Payables to Affiliates	—			2,469			513			(2,982		)	—
Deferred Income Taxes	1,015			—			—			—			1,015
Other Noncurrent Liabilities	315			330			8			—			653
Debt	1,622			43			1,164			—			2,829
Long-Term Intercompany Note Payable	1,134			—			—			(1,134		)	—
Equity-Tesoro Corporation	4,248			5,021			1,953			(6,974		)	4,248
Equity-Noncontrolling Interest	—			—			1,187			—			1,187
Total Liabilities and Equity	$	8,451		$	10,837		$	5,426		$	(11,146	)	$	13,568
Condensed Consolidating Balance Sheet as of December 31, 2013
(In millions)
	Parent			Guarantor			Non-			Eliminations			Consolidated
				Subsidiaries			Guarantors
ASSETS
Current Assets:
Cash and cash equivalents	$	—		$	1,161		$	77		$	—		$	1,238
Receivables, less allowance for doubtful accounts	12			1,182			119			—			1,313
Inventories	—			2,041			524			—			2,565
Prepayments and other current assets	109			89			57			(45		)	210
Total Current Assets	121			4,473			777			(45		)	5,326
Net Property, Plant and Equipment	—			5,428			1,447			—			6,875
Investment in Subsidiaries	5,242			51			1,520			(6,813		)	—
Long-Term Receivables from Affiliates	3,080			—			—			(3,080		)	—
Long-Term Intercompany Note Receivable	—			—			1,134			(1,134		)	—
Other Noncurrent Assets, Net	58			1,092			38			—			1,188
Total Assets	$	8,501		$	11,044		$	4,916		$	(11,072	)	$	13,389
LIABILITIES AND EQUITY
Current Liabilities:
Accounts payable	$	1		$	2,110		$	485		$	—		$	2,596
Other current liabilities	112			679			66			(45		)	812
Total Current Liabilities	113			2,789			551			(45		)	3,408
Long-Term Payables to Affiliates	—			2,939			141			(3,080		)	—
Deferred Income Taxes	1,018			—			—			—			1,018
Other Noncurrent Liabilities	320			327			8			—			655
Debt	1,614			45			1,164			—			2,823
Long-Term Intercompany Note Payable	1,134			—			—			(1,134		)	—
Equity-Tesoro Corporation	4,302			4,944			1,869			(6,813		)	4,302
Equity-Noncontrolling Interest	—			—			1,183			—			1,183
Total Liabilities and Equity	$	8,501		$	11,044		$	4,916		$	(11,072	)	$	13,389
Condensed Consolidating Statement of Cash Flows for the Three Months Ended March 31, 2014
(In millions)
	Parent			Guarantor			Non-			Eliminations			Consolidated
				Subsidiaries			Guarantors
CASH FLOWS FROM (USED IN) OPERATING ACTIVITIES
Net cash from (used in) operating activities	$	(17	)	$	154		$	(287	)	$	—		$	(150	)
CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES
Capital expenditures	—			(92		)	(27		)	—			(119		)
Intercompany notes, net	168			—			—			(168		)	—
Other investing activities	—			—			10			—			10
Net cash from (used in) investing activities	168			(92		)	(17		)	(168		)	(109		)
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES
Proceeds from debt offering	300			—			—			—			300
Repayments of debt	(300		)	(1		)	—			—			(301		)
Dividend payments	(33		)	—			—			—			(33		)
Distributions to noncontrolling interest	—			—			(20		)	—			(20		)
Purchases of common stock	(100		)	—			—			—			(100		)
Premium paid on notes redemption	(19		)	—			—			—			(19		)
Net intercompany borrowings (repayments)	—			(501		)	333			168			—
Distributions to TLLP unitholders and general partner	4			5			(9		)	—			—
Other financing activities	(3		)	—			(5		)	—			(8		)
Net cash from (used in) financing activities	(151		)	(497		)	299			168			(181		)
DECREASE IN CASH AND CASH EQUIVALENTS	—			(435		)	(5		)	—			(440		)
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	—			1,161			77			—			1,238
CASH AND CASH EQUIVALENTS, END OF PERIOD	$	—		$	726		$	72		$	—		$	798
Condensed Consolidating Statement of Cash Flows for the Three Months Ended March 31, 2013
(In millions)
	Parent			Guarantor			Non-			Eliminations			Consolidated
				Subsidiaries			Guarantors
CASH FLOWS FROM OPERATING ACTIVITIES
Net cash from operating activities	$	—		$	135		$	112		$	—		$	247
CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES
Capital expenditures	—			(115		)	(10		)	—			(125		)
Advanced payments made for Los Angeles Acquisition	—			(27		)	—			—			(27		)
Intercompany notes, net	(91		)	—			—			91			—
Other investing activities	—			—			2			—			2
Net cash used in investing activities	(91		)	(142		)	(8		)	91			(150		)
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES
Dividend payments	(28		)	—			—			—			(28		)
Net proceeds from issuance of Tesoro Logistics LP common units	—			—			392			—			392
Distributions to noncontrolling interest	—			—			(14		)	—			(14		)
Purchases of common stock	(135		)	—			—			—			(135		)
Net intercompany borrowings (repayments)	—			273			(182		)	(91		)	—
Borrowings from general partner	230			—			(230		)	—			—
Distributions to TLLP unitholders and general partner	3			4			(7		)	—			—
Other financing activities	21			3			(3		)	—			21
Net cash from (used in) financing activities	91			280			(44		)	(91		)	236
INCREASE IN CASH AND CASH EQUIVALENTS	—			273			60			—			333
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	—			1,244			395			—			1,639
CASH AND CASH EQUIVALENTS, END OF PERIOD	$	—		$	1,517		$	455		$	—		$	1,972

Basis_of_Presentation_Policies

Basis of Presentation (Policies)	3 Months Ended
	Mar. 31, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Basis of presentation and significant accounting policies	'
	We prepare our condensed consolidated financial statements in conformity with U.S. GAAP, which requires management to make estimates and assumptions that affect the reported amounts and disclosures of assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the periods presented.
Use of estimates policy	'
	We review our estimates on an ongoing basis. Changes in facts and circumstances may result in revised estimates and actual results could differ from those estimates. The results of operations for any interim period are not necessarily indicative of results for the full year. Certain prior year balances have been aggregated or disaggregated in order to conform to the current year presentation.
Discontinued operations policy	'
	On September 25, 2013, we completed the sale of all of our interest in Tesoro Hawaii, LLC, which operated a 94 thousand barrel per day (“Mbpd”) Hawaii refinery, retail stations and associated logistics assets (the “Hawaii Business”). Unless otherwise noted, the information in the notes to the condensed consolidated financial statements relates to our continuing operations.
Consolidation of variable interest entity policy	'
	Our consolidated financial statements include TLLP, a variable interest entity. As the general partner of TLLP, we have the sole ability to direct the activities of TLLP that most significantly impact its economic performance. We are also considered to be the primary beneficiary for accounting purposes and are TLLP’s primary customer.

Property_Plant_and_Equipment_P

Property, Plant and Equipment Property, Plant and Equipment (Policies)	3 Months Ended
	Mar. 31, 2014
Property, Plant and Equipment [Abstract]	'
Interest capitalization policy	'
	We capitalize interest as part of the cost of major projects during the construction period.

Fair_Value_Measurements_Polici

Fair Value Measurements (Policies)	3 Months Ended
	Mar. 31, 2014
Fair Value Disclosures [Abstract]	'
Fair value of financial instruments policy	'
	We classify financial assets and financial liabilities into the following fair value hierarchy:
	•	level 1 - valued based on quoted prices in active markets for identical assets and liabilities;
	•	level 2 - valued based on quoted prices for similar assets and liabilities in active markets, and inputs other than quoted prices that are observable for the asset or liability; and
	•	level 3 - valued based on unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities.
	We measure fair value using level 1 inputs, when available, because they provide the most reliable evidence of fair value. Derivative instruments along with obligations for Renewable Identification Numbers (“RINs”) and cap and trade emission credits for the state of California (together with RINs, our “Environmental Credit Obligations”) are our only financial assets and financial liabilities measured at fair value on a recurring basis. We did not have any financial assets or liabilities classified as level 3 at March 31, 2014 or December 31, 2013. See Note I for further information on the Company’s derivative instruments.

Derivative_Instruments_Policie

Derivative Instruments (Policies)	3 Months Ended
	Mar. 31, 2014
General Discussion of Derivative Instruments and Hedging Activities [Abstract]	'
Derivatives, policy	'
	The accounting for changes in the fair value of a commodity derivative depends on whether we have elected the normal purchases and normal sales exception. Our recognition of derivatives using the normal purchase normal sales exception follows the accrual method of accounting whereas changes in fair value for all other derivatives are recorded each period using mark-to-market accounting.

Acquisitions_Acquisitions_Tabl

Acquisitions Acquisitions (Tables)	3 Months Ended
	Mar. 31, 2014
Business Combinations [Abstract]	'
Acquisition date purchase price allocation	'
	The table below presents the acquisition date purchase price allocation (in millions) through March 31, 2014:
	Receivables	$	197
	Inventories	1,096
	Prepayments and other current assets	14
	Property, plant and equipment	1,085
	Acquired intangibles, net	63
	Other noncurrent assets, net	112
	Other current liabilities	(25		)
	Other noncurrent liabilities	(179		)
	Debt	(36		)
	Total purchase price	$	2,327

Earnings_Per_Share_Tables

Earnings Per Share (Tables)	3 Months Ended
	Mar. 31, 2014
Earnings Per Share [Abstract]	'
Schedule of Basic and Diluted Shares Outstanding	'
	Our share calculations are presented below (in millions):
		Three Months Ended
		March 31,
		2014	2013
	Weighted average common shares outstanding	131.3	137
	Common stock equivalents	2.5	2.6
	Total diluted shares	133.8	139.6

Inventories_Tables

Inventories (Tables)	3 Months Ended
	Mar. 31, 2014
Inventory Disclosure [Abstract]	'
Schedule of inventory, current	'
	Components of inventories were as follows (in millions):
		March 31,		December 31,
		2014		2013
	Domestic crude oil and refined products	$	1,904	$	1,847
	Foreign subsidiary crude oil	671		523
	Other inventories	202		195
	Total Inventories	$	2,777	$	2,565

Property_Plant_and_Equipment_T

Property, Plant and Equipment (Tables)	3 Months Ended
	Mar. 31, 2014
Property, Plant and Equipment [Abstract]	'
Property, plant and equipment	'
	Property, plant and equipment, at cost, is as follows (in millions):
		March 31,			December 31,
		2014			2013
	Refining	$	6,679		$	6,611
	TLLP	1,530			1,504
	Retail	784			778
	Corporate	234			230
	Property, plant and equipment, at cost	9,227			9,123
	Accumulated depreciation	(2,332		)	(2,248		)
	Net property, plant and equipment	$	6,895		$	6,875

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2014
Fair Value Disclosures [Abstract]	'
Schedule of fair value, assets and liabilities measured on recurring basis	'
	Financial assets and liabilities recognized at fair value in our condensed consolidated balance sheets by level within the fair value hierarchy were as follows (in millions):
		Level 1		Level 2		Level 3		Netting and Collateral (a)			Total as of
											31-Mar-14
	Assets:
	Commodity Futures Contracts	$	179	$	2	$	—	$	(117	)	$	64
	Commodity OTC Swap Contracts	—		1		—		—			1
	Commodity Forward Contracts	—		2		—		—			2
	Total Assets	$	179	$	5	$	—	$	(117	)	$	67
	Liabilities:
	Commodity Futures Contracts	$	192	$	4	$	—	$	(180	)	$	16
	Commodity OTC Swap Contracts	—		3		—		—			3
	Commodity Forward Contracts	—		1		—		—			1
	Environmental Credit Obligations	—		9		—		—			9
	Total Liabilities	$	192	$	17	$	—	$	(180	)	$	29
		Level 1		Level 2		Level 3		Netting and Collateral (a)			Total as of
											31-Dec-13
	Assets:
	Commodity Futures Contracts	$	136	$	4	$	—	$	(72	)	$	68
	Total Assets	$	136	$	4	$	—	$	(72	)	$	68
	Liabilities:
	Commodity Futures Contracts	$	156	$	2	$	—	$	(137	)	$	21
	Commodity Forward Contracts	—		1		—		—			1
	Environmental Credit Obligations	—		5		—		—			5
	Total Liabilities	$	156	$	8	$	—	$	(137	)	$	27
	________________
	(a)	Represents the impact of netting assets, liabilities and cash collateral when a legal right of offset exists. As of March 31, 2014 and December 31, 2013, cash collateral amounts of $63 million and $65 million, respectively, are netted with mark-to-market derivative assets.

Derivative_Instruments_Tables

Derivative Instruments (Tables)	3 Months Ended
	Mar. 31, 2014
General Discussion of Derivative Instruments and Hedging Activities [Abstract]	'
Schedule of derivative instruments in Balance Sheet, fair value	'
	The following table presents the fair value (in millions) of our derivative instruments as of March 31, 2014 and December 31, 2013. The fair value amounts below are presented on a gross basis and do not reflect the netting of asset and liability positions permitted under the terms of our master netting arrangements including cash collateral on deposit with, or received from, brokers. We offset the recognized fair value amounts for multiple derivative instruments executed with the same counterparty in our financial statements when a legal right of offset exists. As a result, the asset and liability amounts below will not agree with the amounts presented in our condensed consolidated balance sheets.
				Derivative Assets							Derivative Liabilities
		Balance Sheet Location		March 31,				December 31,			March 31,			December 31,
				2014				2013			2014			2013
	Commodity Futures Contracts (a)	Prepayments and other current assets		$	181			$	140		$	196		$	158
	Commodity OTC Swap Contracts	Receivables		1				—			—			—
	Commodity OTC Swap Contracts	Accounts payable		—				—			3			—
	Commodity Forward Contracts	Receivables		2				—			—			—
	Commodity Forward Contracts	Accounts payable		—				—			1			1
	Total Gross Mark-to-Market Derivatives			184				140			200			159
	Less: Counterparty Netting and Cash Collateral (b)			(117		)		(72		)	(180		)	(137		)
	Total Net Fair Value of Derivatives			$	67			$	68		$	20		$	22
	________________
	(a)	We had derivative assets totaling $1 million and $3 million at March 31, 2014 and December 31, 2013, respectively, related to corn futures used to manage our biofuel exposure. Additionally, we had derivative liabilities totaling $4 million and $1 million at March 31, 2014 and December 31, 2013, respectively, related to corn futures.
	(b)	As of March 31, 2014 and December 31, 2013, cash collateral amounts of $63 million and $65 million, respectively, are netted with mark-to-market derivative assets.
Schedule of mark-to-market derivatives	'
	Gains (losses) for our mark-to market derivatives for the three months ended March 31, 2014 and 2013, were as follows (in millions):
		Three Months Ended
		March 31,
		2014				2013
	Commodity Futures Contracts	$	—			$	(26	)
	Commodity OTC Swap Contracts	(1		)		—
	Commodity Forward Contracts	1				(2		)
	Foreign Currency Forward Contracts	(2		)		(2		)
	Total Loss on Mark-to-Market Derivatives	$	(2	)		$	(30	)
	The income statement location of gains (losses) for our mark-to market derivatives above were as follows (in millions):
		Three Months Ended
		March 31,
		2014				2013
	Revenues	$	1			$	1
	Cost of sales	(1		)		(22		)
	Other expense, net	(2		)		(2		)
	Net loss from discontinued operations	—				(7		)
	Total Loss on Mark-to-Market Derivatives	$	(2	)		$	(30	)
Schedule of open long (short) positions	'
	The information below presents the net volume of outstanding commodity contracts by type of instrument and year of maturity as of March 31, 2014 (volumes in thousands of barrels):
	Mark-to-Market Derivatives
	Derivative instrument and Year of maturity		Long (Short) Contract Volumes
	Futures
	2014		-11,937
	OTC Swaps
	2014		4,300
	Forwards
	2014		-306
	Options
	2014		600

Debt_Tables

Debt (Tables)	3 Months Ended
	Mar. 31, 2014
Debt Disclosure [Abstract]	'
Schedule of Debt	'
	Our total debt balance at March 31, 2014 and December 31, 2013 was as follows (in millions):
		March 31,			December 31,
		2014			2013
	Total debt (a)	$	2,835		$	2,829
	Less: Current maturities	6			6
	Debt, less current maturities	$	2,829		$	2,823
	________________
	(a)	Total debt related to TLLP, which is non-recourse to Tesoro, except for TLGP, was $1.2 billion at both March 31, 2014 and December 31, 2013, respectively.
Schedule of Line of Credit Facilities	'
	We had available capacity under our credit agreements as follows at March 31, 2014 (in millions):
		Total			Amount Borrowed as of March 31, 2014			Outstanding		Available Capacity		Expiration
		Capacity						Letters of Credit
	Tesoro Corporation Revolving	$	3,000		$	—		$	795	$	2,205	January 4, 2018
	Credit Facility (a)
	TLLP Revolving Credit Facility	575			—			—		575		December 31, 2017
	Term Loan Credit Facility	398			398			—		—		30-May-16
	Letter of Credit Facilities	1,712			—			858		854
	Total credit agreements	$	5,685		$	398		$	1,653	$	3,634
	________________
	(a)	Borrowing base is the lesser of the amount of the periodically adjusted borrowing base or the agreement’s total capacity.
	As of March 31, 2014, our credit facilities were subject to the following expenses and fees:
	Credit Facility		30 day Eurodollar (LIBOR) Rate	Eurodollar Margin		Base Rate	Base Rate Margin		Commitment Fee
									(unused portion)
	Tesoro Corporation Revolving Credit Facility		0.15%	1.50%		3.25%	0.50%		0.38%
	($3.0 billion) (b)
	TLLP Revolving Credit Facility ($575 million) (c)		0.15%	2.50%		3.25%	1.50%		0.50%
	Term Loan Credit Facility ($398 million) (b)		0.15%	2.25%		3.25%	1.25%		—%
	________________
	(b)	We can elect the interest rate to apply to the facility between a base rate plus the base rate margin, or a Eurodollar rate, for the applicable term, plus the Eurodollar margin at the time of the borrowing. The applicable margin on the Revolving Credit Facility varies primarily based upon our credit ratings. Letters of credit outstanding under the Revolving Credit Facility incur fees at the Eurodollar margin rate.
	(c)	TLLP has the option to elect if the borrowings will bear interest at either, a base rate plus the base rate margin or a Eurodollar rate, for the applicable period, plus the Eurodollar margin at the time of the borrowing. The applicable margin varies based upon a certain leverage ratio, as defined by the TLLP Revolving Credit Facility. TLLP incurs commitment fees for the unused portion of the TLLP Revolving Credit Facility. Letters of credit outstanding under the Revolving Credit Facility incur fees at the Eurodollar margin rate.

Benefit_Plans_Tables

Benefit Plans (Tables)	3 Months Ended
	Mar. 31, 2014
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]	'
Schedule of Defined Benefit Plans Disclosures	'
	The components of pension and other postretirement benefit expense (income) for the three months ended March 31, 2014 and 2013 were (in millions):
		Pension Benefits						Other Postretirement Benefits
		Three Months Ended						Three Months Ended
		March 31,						March 31,
		2014			2013			2014			2013
	Service cost	$	13		$	8		$	1		$	1
	Interest cost	9			7			1			1
	Expected return on plan assets	(8		)	(6		)	—			—
	Amortization of prior service credit	—			—			(9		)	(9		)
	Recognized net actuarial loss	4			7			1			2
	Net Periodic Benefit Expense (Income)	$	18		$	16		$	(6	)	$	(5	)

Stockholders_Equity_Tables

Stockholders' Equity (Tables)	3 Months Ended
	Mar. 31, 2014
Stockholders' Equity Attributable to Parent [Abstract]	'
Stockholders' equity and noncontrolling interest	'
	Changes to equity during the three months ended March 31, 2014 are presented below (in millions):
		Tesoro			Noncontrolling			Total Equity
		Corporation			Interest
		Stockholders’
		Equity
	Balance at December 31, 2013	$	4,302		$	1,183		$	5,485
	Net earnings	78			25			103
	Purchases of common stock	(100		)	—			(100		)
	Dividend payments	(33		)	—			(33		)
	Distributions to noncontrolling interest	—			(20		)	(20		)
	Other	1			(1		)	—
	Balance at March 31, 2014	$	4,248		$	1,187		$	5,435

StockBased_Compensation_Tables

Stock-Based Compensation (Tables)	3 Months Ended
	Mar. 31, 2014
Share-based Compensation [Abstract]	'
Summary of stock-based compensation expense (benefit)	'
	Stock-based compensation expense (benefit), including discontinued operations, was as follows (in millions):
		Three Months Ended
		March 31,
		2014			2013
	Stock appreciation rights	$	(18	)	$	39
	Performance share awards	(3		)	8
	Market stock units	3			4
	Other stock-based awards	—			1
	Total Stock-Based Compensation Expense (Benefit)	$	(18	)	$	52

Operating_Segments_Tables

Operating Segments (Tables)	3 Months Ended
	Mar. 31, 2014
Segment Reporting [Abstract]	'
Schedule of segment reporting information, by segment	'
	Segment information related to continuing operations is as follows:
		Three Months Ended
		March 31,
		2014			2013
		(In millions)
	Revenues
	Refining:
	Refined products	$	9,500		$	6,744
	Crude oil resales and other	272			469
	TLLP:
	Crude oil gathering	25			22
	Terminalling and transportation	100			30
	Retail:
	Fuel (a)	3,024			1,507
	Merchandise and other	61			48
	Intersegment sales	(3,049		)	(1,473		)
	Total Revenues	$	9,933		$	7,347
	Segment Operating Income
	Refining	$	183		$	259
	TLLP (b)	62			24
	Retail	19			15
	Total Segment Operating Income	264			298
	Corporate and unallocated costs (c)	(26		)	(105		)
	Operating Income	238			193
	Interest and financing costs, net (d)	(77		)	(30		)
	Other expense, net	(1		)	—
	Earnings Before Income Taxes	$	160		$	163
	Depreciation and Amortization Expense
	Refining	$	101		$	88
	TLLP	16			4
	Retail	10			8
	Corporate	3			5
	Total Depreciation and Amortization Expense	$	130		$	105
	Capital Expenditures
	Refining	$	68		$	99
	TLLP	26			10
	Retail	5			7
	Corporate	4			3
	Total Capital Expenditures	$	103		$	119
	________________
	(a)	Federal and state motor fuel taxes on sales by our retail segment are included in both revenues and cost of sales in our condensed statements of consolidated operations. These taxes totaled $141 million and $129 million for the three months ended March 31, 2014 and 2013, respectively.
	(b)	We present TLLP’s segment operating income net of general and administrative expenses totaling $3 million and $4 million representing TLLP’s corporate costs for the three months ended March 31, 2014 and 2013, respectively, that are not allocated to TLLP’s operating segments.
	(c)	Includes stock-based compensation benefit of $18 million and expense of $49 million for the three months ended March 31, 2014 and 2013, respectively. The significant impact to stock-based compensation expense during the three months ended March 31, 2014 compared to the prior periods is primarily a result of changes in Tesoro’s stock price.
	(d)	Includes charges totaling $31 million for premiums and unamortized debt issuance costs associated with the redemption of the 2019 Notes during the three months ended March 31, 2014.

Condensed_Consolidating_Financ1

Condensed Consolidating Financial Information (Tables)	3 Months Ended
	Mar. 31, 2014
Condensed Financial Information of Parent Company Only Disclosure [Abstract]	'
Condensed Consolidating Statement of Operations	'
	Condensed Consolidating Statement of Operations
	for the Three Months Ended March 31, 2014
	(In millions)
		Parent			Guarantor			Non-			Eliminations			Consolidated
					Subsidiaries			Guarantors
	REVENUES	$	—		$	11,564		$	1,610		$	(3,241	)	$	9,933
	COSTS AND EXPENSES:
	Cost of sales	—			10,664			1,476			(3,192		)	8,948
	Operating, selling, general and administrative expenses	1			612			58			(49		)	622
	Depreciation and amortization expense	—			113			17			—			130
	Gain on asset disposals and impairments	—			(1		)	(4		)	—			(5		)
	OPERATING INCOME (LOSS)	(1		)	176			63			—			238
	Equity in earnings of subsidiaries	86			12			100			(198		)	—
	Interest and financing costs, net	(8		)	(59		)	(18		)	8			(77		)
	Other income (expense), net	—			(1		)	8			(8		)	(1		)
	EARNINGS BEFORE INCOME TAXES	77			128			153			(198		)	160
	Income tax expense (benefit) (a)	(1		)	51			6			—			56
	NET EARNINGS FROM CONTINUING OPERATIONS	78			77			147			(198		)	104
	Loss from discontinued operations, net of tax	—			(1		)	—			—			(1		)
	NET EARNINGS	78			76			147			(198		)	103
	Less: Net earnings from continuing operations attributable to noncontrolling interest	—			—			25			—			25
	NET EARNINGS ATTRIBUTABLE TO TESORO CORPORATION	$	78		$	76		$	122		$	(198	)	$	78
	_______________
	(a)	The income tax expense (benefit) reflected in each column does not include any tax effect of the equity in earnings from corporate subsidiaries, but does include the tax effect of the corporate partners’ share of partnership income.
	Condensed Consolidating Statement of Operations
	for the Three Months Ended March 31, 2013
	(In millions)
		Parent			Guarantor			Non-			Eliminations			Consolidated
					Subsidiaries			Guarantors
	REVENUES	$	—		$	9,115		$	822		$	(2,590	)	$	7,347
	COSTS AND EXPENSES:
	Cost of sales	—			8,397			756			(2,590		)	6,563
	Operating, selling, general and administrative expenses	1			450			28			—			479
	Depreciation and amortization expense	—			100			5			—			105
	Loss on asset disposals and impairments	—			4			3			—			7
	OPERATING INCOME (LOSS)	(1		)	164			30			—			193
	Equity in earnings (loss) of subsidiaries	96			(6		)	44			(134		)	—
	Interest and financing costs, net	(2		)	(25		)	(5		)	2			(30		)
	Other income (expense), net	—			—			2			(2		)	—
	EARNINGS BEFORE INCOME TAXES	93			133			71			(134		)	163
	Income tax expense (a)	—			55			3			—			58
	NET EARNINGS FROM CONTINUING OPERATIONS	93			78			68			(134		)	105
	Loss from discontinued operations, net of tax	—			(1		)	—			—			(1		)
	NET EARNINGS	93			77			68			(134		)	104
	Less: Net earnings from continuing operations attributable to noncontrolling interest	—			—			11			—			11
	NET EARNINGS ATTRIBUTABLE TO TESORO CORPORATION	$	93		$	77		$	57		$	(134	)	$	93
	_______________
	(a)	The income tax expense reflected in each column does not include any tax effect of the equity in earnings from corporate subsidiaries, but does include the tax effect of the corporate partners’ share of partnership income.
Condensed Consolidating Balance Sheet	'
	Condensed Consolidating Balance Sheet as of March 31, 2014
	(In millions)
		Parent			Guarantor			Non-			Eliminations			Consolidated
					Subsidiaries			Guarantors
	ASSETS
	Current Assets:
	Cash and cash equivalents	$	—		$	726		$	72		$	—		$	798
	Receivables, less allowance for doubtful accounts	—			1,326			370			—			1,696
	Inventories	—			2,106			671			—			2,777
	Prepayments and other current assets	91			95			69			(56		)	199
	Total Current Assets	91			4,253			1,182			(56		)	5,470
	Net Property, Plant and Equipment	—			5,438			1,457			—			6,895
	Investment in Subsidiaries	5,323			36			1,615			(6,974		)	—
	Long-Term Receivables from Affiliates	2,982			—			—			(2,982		)	—
	Long-Term Intercompany Note Receivable	—			—			1,134			(1,134		)	—
	Other Noncurrent Assets, Net	55			1,110			38			—			1,203
	Total Assets	$	8,451		$	10,837		$	5,426		$	(11,146	)	$	13,568
	LIABILITIES AND EQUITY
	Current Liabilities:
	Accounts payable	$	1		$	2,411		$	503		$	—		$	2,915
	Other current liabilities	116			563			98			(56		)	721
	Total Current Liabilities	117			2,974			601			(56		)	3,636
	Long-Term Payables to Affiliates	—			2,469			513			(2,982		)	—
	Deferred Income Taxes	1,015			—			—			—			1,015
	Other Noncurrent Liabilities	315			330			8			—			653
	Debt	1,622			43			1,164			—			2,829
	Long-Term Intercompany Note Payable	1,134			—			—			(1,134		)	—
	Equity-Tesoro Corporation	4,248			5,021			1,953			(6,974		)	4,248
	Equity-Noncontrolling Interest	—			—			1,187			—			1,187
	Total Liabilities and Equity	$	8,451		$	10,837		$	5,426		$	(11,146	)	$	13,568
	Condensed Consolidating Balance Sheet as of December 31, 2013
	(In millions)
		Parent			Guarantor			Non-			Eliminations			Consolidated
					Subsidiaries			Guarantors
	ASSETS
	Current Assets:
	Cash and cash equivalents	$	—		$	1,161		$	77		$	—		$	1,238
	Receivables, less allowance for doubtful accounts	12			1,182			119			—			1,313
	Inventories	—			2,041			524			—			2,565
	Prepayments and other current assets	109			89			57			(45		)	210
	Total Current Assets	121			4,473			777			(45		)	5,326
	Net Property, Plant and Equipment	—			5,428			1,447			—			6,875
	Investment in Subsidiaries	5,242			51			1,520			(6,813		)	—
	Long-Term Receivables from Affiliates	3,080			—			—			(3,080		)	—
	Long-Term Intercompany Note Receivable	—			—			1,134			(1,134		)	—
	Other Noncurrent Assets, Net	58			1,092			38			—			1,188
	Total Assets	$	8,501		$	11,044		$	4,916		$	(11,072	)	$	13,389
	LIABILITIES AND EQUITY
	Current Liabilities:
	Accounts payable	$	1		$	2,110		$	485		$	—		$	2,596
	Other current liabilities	112			679			66			(45		)	812
	Total Current Liabilities	113			2,789			551			(45		)	3,408
	Long-Term Payables to Affiliates	—			2,939			141			(3,080		)	—
	Deferred Income Taxes	1,018			—			—			—			1,018
	Other Noncurrent Liabilities	320			327			8			—			655
	Debt	1,614			45			1,164			—			2,823
	Long-Term Intercompany Note Payable	1,134			—			—			(1,134		)	—
	Equity-Tesoro Corporation	4,302			4,944			1,869			(6,813		)	4,302
	Equity-Noncontrolling Interest	—			—			1,183			—			1,183
	Total Liabilities and Equity	$	8,501		$	11,044		$	4,916		$	(11,072	)	$	13,389
Condensed Consolidating Statement of Cash Flows	'
	Condensed Consolidating Statement of Cash Flows for the Three Months Ended March 31, 2014
	(In millions)
		Parent			Guarantor			Non-			Eliminations			Consolidated
					Subsidiaries			Guarantors
	CASH FLOWS FROM (USED IN) OPERATING ACTIVITIES
	Net cash from (used in) operating activities	$	(17	)	$	154		$	(287	)	$	—		$	(150	)
	CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES
	Capital expenditures	—			(92		)	(27		)	—			(119		)
	Intercompany notes, net	168			—			—			(168		)	—
	Other investing activities	—			—			10			—			10
	Net cash from (used in) investing activities	168			(92		)	(17		)	(168		)	(109		)
	CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES
	Proceeds from debt offering	300			—			—			—			300
	Repayments of debt	(300		)	(1		)	—			—			(301		)
	Dividend payments	(33		)	—			—			—			(33		)
	Distributions to noncontrolling interest	—			—			(20		)	—			(20		)
	Purchases of common stock	(100		)	—			—			—			(100		)
	Premium paid on notes redemption	(19		)	—			—			—			(19		)
	Net intercompany borrowings (repayments)	—			(501		)	333			168			—
	Distributions to TLLP unitholders and general partner	4			5			(9		)	—			—
	Other financing activities	(3		)	—			(5		)	—			(8		)
	Net cash from (used in) financing activities	(151		)	(497		)	299			168			(181		)
	DECREASE IN CASH AND CASH EQUIVALENTS	—			(435		)	(5		)	—			(440		)
	CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	—			1,161			77			—			1,238
	CASH AND CASH EQUIVALENTS, END OF PERIOD	$	—		$	726		$	72		$	—		$	798
	Condensed Consolidating Statement of Cash Flows for the Three Months Ended March 31, 2013
	(In millions)
		Parent			Guarantor			Non-			Eliminations			Consolidated
					Subsidiaries			Guarantors
	CASH FLOWS FROM OPERATING ACTIVITIES
	Net cash from operating activities	$	—		$	135		$	112		$	—		$	247
	CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES
	Capital expenditures	—			(115		)	(10		)	—			(125		)
	Advanced payments made for Los Angeles Acquisition	—			(27		)	—			—			(27		)
	Intercompany notes, net	(91		)	—			—			91			—
	Other investing activities	—			—			2			—			2
	Net cash used in investing activities	(91		)	(142		)	(8		)	91			(150		)
	CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES
	Dividend payments	(28		)	—			—			—			(28		)
	Net proceeds from issuance of Tesoro Logistics LP common units	—			—			392			—			392
	Distributions to noncontrolling interest	—			—			(14		)	—			(14		)
	Purchases of common stock	(135		)	—			—			—			(135		)
	Net intercompany borrowings (repayments)	—			273			(182		)	(91		)	—
	Borrowings from general partner	230			—			(230		)	—			—
	Distributions to TLLP unitholders and general partner	3			4			(7		)	—			—
	Other financing activities	21			3			(3		)	—			21
	Net cash from (used in) financing activities	91			280			(44		)	(91		)	236
	INCREASE IN CASH AND CASH EQUIVALENTS	—			273			60			—			333
	CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	—			1,244			395			—			1,639
	CASH AND CASH EQUIVALENTS, END OF PERIOD	$	—		$	1,517		$	455		$	—		$	1,972

Basis_of_Presentation_Basis_of

Basis of Presentation Basis of Presentation (Details)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'	'
Percentage of TLLP's revenues from Tesoro	88.00%	93.00%

Basis_of_Presentation_Basis_of1

Basis of Presentation Basis of Presentation, Discontinued Operations (Details) (Hawaii Operations)	Sep. 25, 2013
Hawaii Operations	'
Discontinued Operations	'
Capacity (bpd)	94,000

Acquisitions_Los_Angeles_Narra

Acquisitions, Los Angeles Narrative (Details) (USD $)	3 Months Ended
In Billions, unless otherwise specified	Mar. 31, 2014
	stores
Los Angeles Acquisition	'
Business Acquisition	'
Date of acquisition	1-Jun-13
Number of stations (stations)	835
Watson cogeneration facility ownership percentage	51.00%
Purchase price	$2.33
California Region	'
Business Acquisition	'
Number of refineries (refineries)	2
Carson refinery | Los Angeles Acquisition	'
Business Acquisition	'
Capacity (Mbpd)	266

Acquisitions_Acquisitions_Los_

Acquisitions Acquisitions, Los Angeles (Details) (Los Angeles Acquisition, USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2014
Los Angeles Acquisition	'	'
Los Angeles Purchase Price Allocation	'	'
Receivables	'	$197,000,000
Inventories	'	1,096,000,000
Prepayments and other current assets	'	14,000,000
Property, plant and equipment	'	1,085,000,000
Acquired intangibles, net	'	63,000,000
Other noncurrent assets, net	'	112,000,000
Other current liabilities	'	-25,000,000
Other noncurrent liabilities	'	-179,000,000
Debt	'	-36,000,000
Total purchase price	'	2,327,000,000
Los Angeles Pro Forma Information	'	'
Pro forma revenue	10,700,000,000	'
Pro forma net earnings	$176,000,000	'

Tesoro_Logistics_LP_Tesoro_Log

Tesoro Logistics LP Tesoro Logistics LP, Ownership Interest (Details)	3 Months Ended	12 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
Variable Interest Entity	'	'
Percentage ownership of Tesoro Logistics LP	36.00%	36.00%
Limited partner common units outstanding (units)	3,855,824	'
Subordinated units outstanding (units)	15,254,890	'
General partner	'	'
Variable Interest Entity	'	'
General partner units outstanding (units)	1,110,282	'

Discontinued_Operations_Discon1

Discontinued Operations Discontinued Operations (Details) (USD $)	0 Months Ended	3 Months Ended
In Millions, unless otherwise specified	Sep. 25, 2013	Mar. 31, 2014	Mar. 31, 2013
Revenues and earnings from discontinued operations	'	'	'
Loss from discontinued operations, net of tax	'	($1)	($1)
Hawaii Operations	'	'	'
Discontinued Operations	'	'	'
Sales price	539	'	'
Sales price, assets	75	'	'
Sales price, inventory and other net working capital	464	'	'
Earnout arrangement period (years)	'3 years	'	'
Earnout arrangement maximum	40	'	'
Indemnification for environmental remediation	15	'	'
Revenues and earnings from discontinued operations	'	'	'
Revenues	'	0	809
Loss from discontinued operations, before tax	'	'	-1
Loss from discontinued operations, net of tax	'	'	-1
Cash flows related to discontinued operations	'	'	'
Net Cash Provided by (Used in) Discontinued Operations	'	0	'
Operating activities	'	'	102
Investing activities	'	'	$0

Earnings_Per_Share_Details

Earnings Per Share (Details)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Earnings Per Share [Abstract]	'	'
Weighted average common shares outstanding	131.3	137
Common stock equivalents	2.5	2.6
Total diluted shares	133.8	139.6
Anti-dilutive securities (shares)	0.4	0.2

Inventories_Details

Inventories (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Inventory Disclosure [Abstract]	'	'
Domestic crude oil and refined products	$1,904	$1,847
Foreign subsidiary crude oil	671	523
Other inventories	202	195
Total Inventories	2,777	2,565
Excess of replacement or current costs over stated LIFO value	$1,800	$1,700

Property_Plant_and_Equipment_D

Property, Plant and Equipment (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Property Plant and Equipment, at cost	'	'	'
Property, plant and equipment, at cost	$9,227	'	$9,123
Accumulated depreciation	-2,332	'	-2,248
Net property, plant and equipment	6,895	'	6,875
Capitalized interest	5	4	'
Refining	'	'	'
Property Plant and Equipment, at cost	'	'	'
Property, plant and equipment, at cost	6,679	'	6,611
TLLP	'	'	'
Property Plant and Equipment, at cost	'	'	'
Property, plant and equipment, at cost	1,530	'	1,504
Retail	'	'	'
Property Plant and Equipment, at cost	'	'	'
Property, plant and equipment, at cost	784	'	778
Corporate	'	'	'
Property Plant and Equipment, at cost	'	'	'
Property, plant and equipment, at cost	$234	'	$230

Fair_Value_Measurements_Detail

Fair Value Measurements (Details) (USD $)

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

In Millions, unless otherwise specified

Commodity Futures Contracts

Commodity Futures Contracts

Commodity OTC Swap Contracts

Commodity Forward Contracts

Commodity Forward Contracts

Environmental Credit Obligations

Environmental Credit Obligations

Level 1

Level 1

Level 1

Level 1

Level 1

Level 1

Level 1

Level 1

Level 1

Level 2

Level 2

Level 2

Level 2

Level 2

Level 2

Level 2

Level 2

Level 2

Level 3

Level 3

Level 3

Level 3

Level 3

Level 3

Level 3

Level 3

Level 3

Netting and Collateral

Netting and Collateral

Netting and Collateral

Netting and Collateral

Netting and Collateral

Netting and Collateral

Netting and Collateral

Netting and Collateral

Netting and Collateral

Maximum

Minimum

Commodity Futures Contracts

Commodity Futures Contracts

Commodity OTC Swap Contracts

Commodity Forward Contracts

Commodity Forward Contracts

Environmental Credit Obligations

Environmental Credit Obligations

Commodity Futures Contracts

Commodity Futures Contracts

Commodity OTC Swap Contracts

Commodity Forward Contracts

Commodity Forward Contracts

Environmental Credit Obligations

Environmental Credit Obligations

Commodity Futures Contracts

Commodity Futures Contracts

Commodity OTC Swap Contracts

Commodity Forward Contracts

Commodity Forward Contracts

Environmental Credit Obligations

Environmental Credit Obligations

Commodity Futures Contracts

Commodity Futures Contracts

Commodity OTC Swap Contracts

Commodity Forward Contracts

Commodity Forward Contracts

Environmental Credit Obligations

Environmental Credit Obligations

Fair Value Measurements

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Gross derivative assets

$184

$140

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$179

$136

$179

$136

$0

$0

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$5

$4

$2

$4

$1

$2

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$0

$0

$0

$0

$0

$0

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Derivative asset amount offset against collateral and netting arrangements

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-117

[1]

-72

[1]

-117

[1]

-72

[1]

0

[1]

0

[1]

'

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'

Net derivative assets

67

68

64

68

1

2

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Gross derivative liabilities

200

159

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192

156

0

0

0

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4

2

3

1

1

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0

0

0

0

0

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Derivative liability amount offset against collateral and netting arrangements

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-180

[1]

-137

[1]

0

[1]

0

[1]

0

[1]

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Net derivative liabilities

20

22

16

21

3

1

1

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Environmental Credit Obligations

'

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9

5

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0

0

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9

5

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0

0

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0

[1]

0

[1]

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Net Derivative liabilities and environmental credit obligations

29

27

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192

156

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17

8

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0

0

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-180

[1]

-137

[1]

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Cash collateral posted

63

65

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Percent of trade receivables with balances outstanding greater than 90 days

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1.00%

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Percent of trade payables with balances outstanding greater than 90 days

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1.00%

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Days Outstanding On Acccounts Payable and Receivable

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'90 days

Debt carrying value

2,829

2,823

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Debt fair value

$2,900

$2,900

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[1]

Represents the impact of netting assets, liabilities and cash collateral when a legal right of offset exists. As of March 31, 2014 and December 31, 2013, cash collateral amounts of $63 million and $65 million, respectively, are netted with mark-to-market derivative assets.

Derivative_Instruments_Derivat

Derivative Instruments, Derivative Assets and Liabilities (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014		Dec. 31, 2013
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification	'		'
Derivative maturity period (years)	'1 year		'
Derivatives, Fair Value	'		'
Gross derivative assets	$184		$140
Gross derivative liabilities	200		159
Net derivative assets	67		68
Net derivative liabilities	20		22
Derivative, Collateral	'		'
Cash collateral outstanding	63		65
Commodity Futures Contracts | Prepayments and other current assets	'		'
Derivatives, Fair Value	'		'
Gross derivative assets	181	[1]	140	[1]
Gross derivative liabilities	196	[1]	158	[1]
Commodity OTC Swap Contracts | Receivables	'		'
Derivatives, Fair Value	'		'
Gross derivative assets	1		0
Gross derivative liabilities	0		0
Commodity OTC Swap Contracts | Accounts payable	'		'
Derivatives, Fair Value	'		'
Gross derivative assets	0		0
Gross derivative liabilities	3		0
Commodity Forward Contracts | Receivables	'		'
Derivatives, Fair Value	'		'
Gross derivative assets	2		0
Gross derivative liabilities	0		0
Commodity Forward Contracts | Accounts payable	'		'
Derivatives, Fair Value	'		'
Gross derivative assets	0		0
Gross derivative liabilities	1		1
Counterparty Netting and Cash Collateral	'		'
Derivatives, Fair Value	'		'
Derivative asset amount offset against collateral and netting arrangements	-117	[2]	-72	[2]
Derivative liability amount offset against collateral and netting arrangements	-180	[2]	-137	[2]
Commodity Contract, Corn Futures	'		'
Derivatives, Fair Value	'		'
Gross derivative assets	1		3
Gross derivative liabilities	$4		$1
[1]	We had derivative assets totaling $1 million and $3 million at March 31, 2014 and December 31, 2013, respectively, related to corn futures used to manage our biofuel exposure. Additionally, we had derivative liabilities totaling $4 million and $1 million at March 31, 2014 and December 31, 2013, respectively, related to corn futures.
[2]	As of March 31, 2014 and December 31, 2013, cash collateral amounts of $63 million and $65 million, respectively, are netted with mark-to-market derivative assets.

Derivative_Instruments_Derivat1

Derivative Instruments, Derivative Gains and Losses (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Derivative Instruments, Gain (Loss)	'	'
Total Loss on Mark-to-Market Derivatives	($2)	($30)
Commodity Futures Contracts	'	'
Derivative Instruments, Gain (Loss)	'	'
Total Loss on Mark-to-Market Derivatives	0	-26
Commodity OTC Swap Contracts	'	'
Derivative Instruments, Gain (Loss)	'	'
Total Loss on Mark-to-Market Derivatives	-1	0
Commodity Forward Contracts	'	'
Derivative Instruments, Gain (Loss)	'	'
Total Loss on Mark-to-Market Derivatives	1	-2
Foreign Currency Forward Contracts	'	'
Derivative Instruments, Gain (Loss)	'	'
Total Loss on Mark-to-Market Derivatives	-2	-2
Revenues	'	'
Derivative Instruments, Gain (Loss)	'	'
Total Loss on Mark-to-Market Derivatives	1	1
Cost of sales	'	'
Derivative Instruments, Gain (Loss)	'	'
Total Loss on Mark-to-Market Derivatives	-1	-22
Other expense, net	'	'
Derivative Instruments, Gain (Loss)	'	'
Total Loss on Mark-to-Market Derivatives	-2	-2
Net loss from discontinued operations	'	'
Derivative Instruments, Gain (Loss)	'	'
Total Loss on Mark-to-Market Derivatives	$0	($7)

Derivative_Instruments_Open_Lo

Derivative Instruments, Open Long (Short) Positions (Details) (CAD)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014
Derivative	'
Open positions maturity period (years)	'1 year
Futures | 2014	'
Derivative	'
Long (short) contract volumes (thousands of barrels/ millions bushels)	-11,937
OTC Swaps | 2014	'
Derivative	'
Long (short) contract volumes (thousands of barrels/ millions bushels)	4,300
Forwards | 2014	'
Derivative	'
Long (short) contract volumes (thousands of barrels/ millions bushels)	-306
Derivative, Notional Amount	50
Maturity of Foreign Currency Derivatives	25-Apr-14
Options | 2014	'
Derivative	'
Long (short) contract volumes (thousands of barrels/ millions bushels)	600
Commodity Contract, Corn Futures | 2014	'
Derivative	'
Long (short) contract volumes (thousands of barrels/ millions bushels)	5,800,000

Debt_Overview_Details

Debt, Overview (Details) (USD $)	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013	Dec. 31, 2013
Debt Instrument	'		'	'
Total Debt	$2,835,000,000		'	$2,829,000,000
Less: Current maturities	6,000,000		'	6,000,000
Debt, less current maturities	2,829,000,000		'	2,823,000,000
Debt redemption charges	-31,000,000		0	'
Credit agreements	'		'	'
Total Capacity	5,685,000,000		'	'
Amount Borrowed as of March 31, 2014	398,000,000		'	'
Outstanding Letters of Credit	1,653,000,000		'	'
Available Capacity	3,634,000,000		'	'
Tesoro Corporation Revolving Credit Facility	'		'	'
Credit agreements	'		'	'
Total Capacity	3,000,000,000	[1]	'	'
Amount Borrowed as of March 31, 2014	0	[1]	'	'
Outstanding Letters of Credit	795,000,000	[1]	'	'
Available Capacity	2,205,000,000	[1]	'	'
Expiration	4-Jan-18	[1]	'	'
Expenses and Fees	'		'	'
Commitment Fee (unused portion)	0.38%	[2]	'	'
Tesoro Corporation Revolving Credit Facility | 30 day Eurodollar (LIBOR) Rate	'		'	'
Expenses and Fees	'		'	'
Eurodollar or Base Rate	0.15%	[2]	'	'
Eurodollar or Base Rate Margin	1.50%	[2]	'	'
Tesoro Corporation Revolving Credit Facility | Base Rate	'		'	'
Expenses and Fees	'		'	'
Eurodollar or Base Rate	3.25%	[2]	'	'
Eurodollar or Base Rate Margin	0.50%	[2]	'	'
TLLP Revolving Credit Facility	'		'	'
Credit agreements	'		'	'
Total Capacity	575,000,000		'	'
Amount Borrowed as of March 31, 2014	0		'	'
Outstanding Letters of Credit	0		'	'
Available Capacity	575,000,000		'	'
Expiration	31-Dec-17		'	'
Expenses and Fees	'		'	'
Commitment Fee (unused portion)	0.50%	[3]	'	'
TLLP Revolving Credit Facility | 30 day Eurodollar (LIBOR) Rate	'		'	'
Expenses and Fees	'		'	'
Eurodollar or Base Rate	0.15%	[3]	'	'
Eurodollar or Base Rate Margin	2.50%	[3]	'	'
TLLP Revolving Credit Facility | Base Rate	'		'	'
Expenses and Fees	'		'	'
Eurodollar or Base Rate	3.25%	[3]	'	'
Eurodollar or Base Rate Margin	1.50%	[3]	'	'
Term Loan Credit Facility	'		'	'
Credit agreements	'		'	'
Total Capacity	398,000,000		'	'
Amount Borrowed as of March 31, 2014	398,000,000		'	'
Outstanding Letters of Credit	0		'	'
Available Capacity	0		'	'
Expiration	30-May-16		'	'
Expenses and Fees	'		'	'
Commitment Fee (unused portion)	0.00%	[2]	'	'
Term Loan Credit Facility | 30 day Eurodollar (LIBOR) Rate	'		'	'
Expenses and Fees	'		'	'
Eurodollar or Base Rate	0.15%	[2]	'	'
Eurodollar or Base Rate Margin	2.25%	[2]	'	'
Term Loan Credit Facility | Base Rate	'		'	'
Expenses and Fees	'		'	'
Eurodollar or Base Rate	3.25%	[2]	'	'
Eurodollar or Base Rate Margin	1.25%	[2]	'	'
Letter of Credit Facilities	'		'	'
Credit agreements	'		'	'
Total Capacity	1,712,000,000		'	'
Amount Borrowed as of March 31, 2014	0		'	'
Outstanding Letters of Credit	858,000,000		'	'
Available Capacity	854,000,000		'	'
5.125% Senior Notes Due 2024	'		'	'
Debt Instrument	'		'	'
Debt instrument interest rate	5.13%		'	'
Debt instrument, aggregate principal	300,000,000		'	'
Debt Instrument, Maturity Date	1-Apr-24		'	'
Debt Instrument, Maturity Date, Description	'ten-year		'	'
Redemption price, percentage	105.13%		'	'
Collateral	'These notes are unsecured obligations and guaranteed by certain of our domestic subsidiaries, excluding TLGP and TLLP and its subsidiaries. The proceeds from the issuance of the 2024 Notes, together with cash on hand, were used to pay for fees and expenses related to the note issuance and to redeem all outstanding 9.750% Senior Notes due 2019 (the “2019 Notes”) for an aggregate purchase price of $329 million, including accrued interest and premiums. expenses related to the offering of the notes.		'	'
5.125% Senior Notes Due 2024 | April 1, 2019 through March 31, 2020	'		'	'
Debt Instrument	'		'	'
Debt Instrument Redemption Premium Percentage	2.56%		'	'
Debt Instrument Redemption With Equity Proceeds	35.00%		'	'
5.125% Senior Notes Due 2024 | April 1, 2020 through March 31, 2021	'		'	'
Debt Instrument	'		'	'
Debt Instrument Redemption Premium Percentage	1.71%		'	'
5.125% Senior Notes Due 2024 | April 1, 2021 through March 31, 2022	'		'	'
Debt Instrument	'		'	'
Debt Instrument Redemption Premium Percentage	0.85%		'	'
9.750% Senior Notes Due 2019	'		'	'
Debt Instrument	'		'	'
Debt instrument interest rate	9.75%		'	'
Debt Instrument, Maturity Date	1-Jun-19		'	'
Debt Instrument, aggregate purchase price	329,000,000		'	'
Debt redemption charges	31,000,000		'	'
Debt Instrument, premium paid	19,000,000		'	'
Unamortized debt discount	8,000,000		'	'
Unamortized debt Issuance costs	4,000,000		'	'
4.250% Senior Notes Due 2017	'		'	'
Debt Instrument	'		'	'
Debt instrument interest rate	4.25%		'	'
Debt Instrument, Maturity Date	1-Oct-17		'	'
5.375% Senior Notes Due 2022	'		'	'
Debt Instrument	'		'	'
Debt instrument interest rate	5.38%		'	'
Debt Instrument, Maturity Date	1-Oct-22		'	'
TLLP	'		'	'
Debt Instrument	'		'	'
Total Debt	$1,164,000,000		'	$1,164,000,000
[1]	Borrowing base is the lesser of the amount of the periodically adjusted borrowing base or the agreement’s total capacity.
[2]	We can elect the interest rate to apply to the facility between a base rate plus the base rate margin, or a Eurodollar rate, for the applicable term, plus the Eurodollar margin at the time of the borrowing. The applicable margin on the Revolving Credit Facility varies primarily based upon our credit ratings. Letters of credit outstanding under the Revolving Credit Facility incur fees at the Eurodollar margin rate.
[3]	TLLP has the option to elect if the borrowings will bear interest at either, a base rate plus the base rate margin or a Eurodollar rate, for the applicable period, plus the Eurodollar margin at the time of the borrowing. The applicable margin varies based upon a certain leverage ratio, as defined by the TLLP Revolving Credit Facility. TLLP incurs commitment fees for the unused portion of the TLLP Revolving Credit Facility. Letters of credit outstanding under the Revolving Credit Facility incur fees at the Eurodollar margin rate.

Debt_Credit_Facilities_Details

Debt, Credit Facilities (Details) (USD $)	0 Months Ended	3 Months Ended
	30-May-13	Mar. 31, 2014
Line of Credit Facility	'	'
Total capacity	'	$5,685,000,000
Line of Credit Facility, Amount Outstanding	'	398,000,000
Letters of credit, amount outstanding	'	1,653,000,000
Tesoro Corporation Revolving Credit Facility	'	'
Line of Credit Facility	'	'
Adjusted Borrowing Base	'	3,600,000,000
Total capacity	'	3,000,000,000	[1]
Maximum available capacity	'	4,000,000,000
Line of Credit Facility, Amount Outstanding	'	0	[1]
Maturity date	'	4-Jan-18	[1]
Letters of credit, amount outstanding	'	795,000,000	[1]
1st repayment provision	'	'
Line of Credit Facility	'	'
Required decrease in commitments	'	500,000,000
Commitment reduction date (on or prior to)	'	21-Nov-14
2nd repayment provision	'	'
Line of Credit Facility	'	'
Required decrease in commitments	'	500,000,000
Commitment reduction date (on or prior to)	'	21-May-15
TLLP Revolving Credit Facility	'	'
Line of Credit Facility	'	'
Total capacity	'	575,000,000
Maximum available capacity	'	650,000,000
Line of Credit Facility, Amount Outstanding	'	0
Maturity date	'	31-Dec-17
Line of credit facility, collateral	'	'The TLLP Revolving Credit Facility is non-recourse to Tesoro, except for TLGP, and is guaranteed by all of TLLP’s subsidiaries and secured by substantially all of TLLP’s assets. Borrowings are available under the TLLP Revolving Credit Facility up to the total loan availability of the facility.
Letters of credit, amount outstanding	'	0
Term Loan Credit Facility	'	'
Line of Credit Facility	'	'
Total capacity	'	398,000,000
Maximum available capacity	'	500,000,000
Line of Credit Facility, Amount Outstanding	'	398,000,000
Borrowings on Term Loan Facility	500,000,000	'
Interest rate	'	2.40%
Maturity date	'	30-May-16
Line of credit facility, collateral	'	'The obligations under the Term Loan Credit Facility are secured by all equity interests of Tesoro Refining & Marketing Company LLC and Tesoro Alaska Company, the Tesoro and USA Gasoline trademarks and those trademarks containing the name “ARCO” acquired in the Los Angeles Acquisition and junior liens on certain assets.
Letters of credit, amount outstanding	'	0
Letter of Credit Facilities	'	'
Line of Credit Facility	'	'
Total capacity	'	1,712,000,000
Line of Credit Facility, Amount Outstanding	'	0
Letters of credit, amount outstanding	'	$858,000,000
[1]	Borrowing base is the lesser of the amount of the periodically adjusted borrowing base or the agreement’s total capacity.

Benefit_Plans_Details

Benefit Plans (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
	plans
Pension Benefits	'	'
General Discussion of Pension Plan	'	'
Number of defined benefit plans sponsored (plans)	4	'
Pension Contributions	'	'
Employer contributions to employee retirement plan	$15	'
Components of Net Periodic Benefit Expense and Other Postretirement Expense (Income):	'	'
Service cost	13	8
Interest cost	9	7
Expected return on plan assets	-8	-6
Amortization of prior service cost credit	0	0
Recognized net actuarial loss	4	7
Net Periodic Benefit Expense (Income)	18	16
Other Postretirement Benefits	'	'
Components of Net Periodic Benefit Expense and Other Postretirement Expense (Income):	'	'
Service cost	1	1
Interest cost	1	1
Expected return on plan assets	0	0
Amortization of prior service cost credit	-9	-9
Recognized net actuarial loss	1	2
Net Periodic Benefit Expense (Income)	($6)	($5)
Funded Qualified Employee Retirement Plan	'	'
General Discussion of Pension Plan	'	'
Number of defined benefit plans sponsored (plans)	1	'
Unfunded Nonqualified Executive Plan	'	'
General Discussion of Pension Plan	'	'
Number of defined benefit plans sponsored (plans)	3	'

Commitments_and_Contingencies_1

Commitments and Contingencies, Environmental Liabilities (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Environmental Liabilities	'	'
Environmental liability accrual	$270	$262
Martinez Refinery and Los Angeles Acquisition	'	'
Environmental Liabilities	'	'
Environmental liability accrual	220	216
Remediation activities measurement period	'We cannot reasonably determine the full extent of remedial activities that may be required at the Martinez refinery and continue to evaluate information related to assets acquired in the Los Angeles Acquisition within our measurement period not to exceed one year from acquisition on June 1, 2013.	'
Martinez refinery	'	'
Environmental Liabilities	'	'
Environmental insurance coverage ceiling	190	'
Self-insurance deductible	50	'
Number of previous owners (owners)	2	'
Tesoro Logistics LP	'	'
Environmental Liabilities	'	'
Environmental liability accrual	$28	$24

Commitments_and_Contingencies_2

Commitments and Contingencies, Washington Refinery Fire (Details) (Washington Refinery Fire, USD $)	1 Months Ended		3 Months Ended
In Millions, unless otherwise specified	Oct. 31, 2010	Apr. 30, 2010	Mar. 31, 2014
		employees
Washington Refinery Fire	'	'	'
Loss Contingencies	'	'	'
Loss contingency, period of occurrence	'	'4/1/2010	'
Number of fatally injured employees in the refinery incident (employees)	'	7	'
Fines and penalties assessed	$2.40	'	'
Notice of Violation (NOV) disclosure	'	'	'We received a NOV from the EPA alleging 46 violations of the Clean Air Act Risk Management Plan requirements at our Washington refinery on November 20, 2013. The EPA conducted an investigation of the refinery in 2011, following the April 2010 fire in the naphtha hydrotreater unit.

Commitments_and_Contingencies_3

Commitments and Contingencies, Legal (Details) (MTBE Contaimination Litigation)	Mar. 31, 2014
	lawsuits
MTBE Contaimination Litigation	'
Other Matters	'
Remaining lawsuits (lawsuits)	1

Commitments_and_Contingencies_4

Commitments and Contingencies, Tax Matters (Details)	3 Months Ended
	Mar. 31, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Significant change in unrecognized tax benefits	'We believe that resolution of any such claim(s) would not have a material impact on our liquidity, financial position, or results of operations. It is reasonably possible that state tax litigation related to certain state income apportionment matters may be resolved in 2014.  Because the tax was fully paid for in prior years, the unrecognized tax benefit of $11 million would be eliminated without additional liability.

Stockholders_Equity_Changes_to

Stockholders' Equity, Changes to Equity (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Total Equity	'	'
Balance at December 31, 2013	$5,485	'
Net earnings	103	104
Purchases of common stock	-100	'
Dividend payments	-33	'
Distributions to noncontrolling interest	-20	'
Other	0	'
Balance at March 31, 2014	5,435	'
Shares issued for equity-based compensation plans (shares)	0.1	0.9
Shares issued for equity-based compensation awards	1	32
Tesoro Corporation Stockholders’ Equity	'	'
Total Equity	'	'
Balance at December 31, 2013	4,302	'
Net earnings	78	'
Purchases of common stock	-100	'
Dividend payments	-33	'
Distributions to noncontrolling interest	0	'
Other	1	'
Balance at March 31, 2014	4,248	'
Noncontrolling Interest	'	'
Total Equity	'	'
Balance at December 31, 2013	1,183	'
Net earnings	25	'
Purchases of common stock	0	'
Dividend payments	0	'
Distributions to noncontrolling interest	-20	'
Other	-1	'
Balance at March 31, 2014	$1,187	'

Stockholders_Equity_Stockholde

Stockholders' Equity Stockholders' Equity, Share Repurchases and Dividends (Details) (USD $)	3 Months Ended			0 Months Ended	3 Months Ended
In Millions, except Share data, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013	Apr. 30, 2014	Mar. 31, 2014	Mar. 31, 2013
				Subsequent Event	Share repurchase program	Share repurchase program
Number of shares purchased (shares)	'	'	'	'	1,900,000	2,600,000
Share repurchases, value	$100	'	'	'	$100	$135
Preferred Stock, Shares Authorized	5,000,000	'	5,000,000	'	'	'
Preferred Stock, Par or Stated Value Per Share	$0	'	$0	'	'	'
Preferred Stock, Shares Issued	0	'	0	'	'	'
Dividends payable, date declared	5-Feb-14	'	'	30-Apr-14	'	'
Dividends declared (dollars per share)	$0.25	$0.20	'	$0.25	'	'
Dividends, date to be paid	14-Mar-14	'	'	13-Jun-14	'	'
Dividend payments	$33	$28	'	'	'	'
Dividends, date of record	28-Feb-14	'	'	30-May-14	'	'

StockBased_Compensation_Detail

Stock-Based Compensation (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Stock-Based Compensation Arrangement by Stock-based Payment Award	'	'
Stock-based compensation expense (benefit)	($18)	$52
Income tax benefit (expense) for stock-based compensation arrangements	-7	20
Tax benefit realized from exercise of stock-based compensation arrangements	3	17
Stock appreciation rights	'	'
Stock-Based Compensation Arrangement by Stock-based Payment Award	'	'
Stock-based compensation expense (benefit)	-18	39
Performance share awards	'	'
Stock-Based Compensation Arrangement by Stock-based Payment Award	'	'
Stock-based compensation expense (benefit)	-3	8
Market stock units	'	'
Stock-Based Compensation Arrangement by Stock-based Payment Award	'	'
Stock-based compensation expense (benefit)	3	4
Other stock-based awards	'	'
Stock-Based Compensation Arrangement by Stock-based Payment Award	'	'
Stock-based compensation expense (benefit)	$0	$1

StockBased_Compensation_StockB

Stock-Based Compensation Stock-Based Compensation, Stock Appreciation Rights (Details) (Stock appreciation rights, USD $)	3 Months Ended
In Millions, except Share data, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Stock appreciation rights	'	'	'
Stock-Based Compensation Arrangement by Stock-based Payment Award	'	'	'
Awards granted (shares)	0	'	'
Cash paid to settle awards	$4	$18	'
Exercised stock appreciation rights (shares)	200,000	900,000	'
Accrued stock appreciation rights	$54	'	$76

StockBased_Compensation_StockB1

Stock-Based Compensation Stock-Based Compensation, Performance Share Awards and Market Stock Units (Details) (USD $)	3 Months Ended
	Mar. 31, 2014
Performance share awards	'
Stock-Based Compensation Arrangement by Stock-based Payment Award	'
Awards granted (shares)	200,000
Weighted average grant date fair value (dollars per share)	$53.89
Market stock units	'
Stock-Based Compensation Arrangement by Stock-based Payment Award	'
Awards granted (shares)	400,000
Weighted average grant date fair value (dollars per share)	$59.06
Award requisite service period (years)	'3 years
Award vesting period (years)	'3 years
Market condition percentage (percent)	50.00%
Market stock units | Minimum	'
Stock-Based Compensation Arrangement by Stock-based Payment Award	'
Vesting percentages of stock based compensation arrangements (percent)	50.00%
Market stock units | Maximum	'
Stock-Based Compensation Arrangement by Stock-based Payment Award	'
Vesting percentages of stock based compensation arrangements (percent)	200.00%
Performance Conditions | Performance share awards	'
Stock-Based Compensation Arrangement by Stock-based Payment Award	'
Award vesting period (years)	'3 years
Performance Conditions | Performance share awards | Minimum	'
Stock-Based Compensation Arrangement by Stock-based Payment Award	'
Vesting percentages of stock based compensation arrangements (percent)	0.00%
Performance Conditions | Performance share awards | Maximum	'
Stock-Based Compensation Arrangement by Stock-based Payment Award	'
Vesting percentages of stock based compensation arrangements (percent)	200.00%
Market Conditions | Performance share awards	'
Stock-Based Compensation Arrangement by Stock-based Payment Award	'
Award vesting period (years)	'3 years
Market Conditions | Performance share awards | Minimum	'
Stock-Based Compensation Arrangement by Stock-based Payment Award	'
Vesting percentages of stock based compensation arrangements (percent)	0.00%
Market Conditions | Performance share awards | Maximum	'
Stock-Based Compensation Arrangement by Stock-based Payment Award	'
Vesting percentages of stock based compensation arrangements (percent)	200.00%

Operating_Segments_Details

Operating Segments (Details)	3 Months Ended
	Mar. 31, 2014
	segments
Segment Reporting Information	'
Number of operating segments (segments)	3
Foreign operations	'Since we do not have significant operations in foreign countries, revenue generated in and long-lived assets located in foreign countries are not material to our operations.
Refining	'
Segment Reporting Information	'
Number of refineries (refineries)	6
Segment reporting description	'We own and operate six petroleum refineries located in California, Washington, Alaska, North Dakota and Utah. These refineries manufacture gasoline and gasoline blendstocks, jet fuel, diesel fuel, residual fuel oil and other refined products. We sell these refined products, together with refined products purchased from third parties, at wholesale through terminal facilities and other locations. Our refining segment also sells refined products to unbranded marketers and opportunistically exports refined products to foreign markets.
TLLP	'
Segment Reporting Information	'
Segment reporting description	'TLLP’s assets and operations include certain crude oil gathering assets and crude oil and refined products terminalling and transportation assets acquired from Tesoro and other third parties. The historical results of operations of these assets have been retrospectively adjusted to conform to current presentation. Revenues from the TLLP segment are generated by charging fees for gathering crude oil and for terminalling, transporting and storing crude oil and refined products.
Retail	'
Segment Reporting Information	'
Number of states with retail sites (states)	17
Segment reporting description	'Our retail segment sells gasoline, diesel fuel and convenience store items through company-operated retail stations and branded jobber/dealers in 17 states.

Operating_Segments_Results_Det

Operating Segments, Results (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014		Mar. 31, 2013
Segment Reporting Information	'		'
Total Revenues	$9,933		$7,347
OPERATING INCOME	238		193
Reconciliation of Operating Income from Segments to Consolidated	'		'
Total Segment Operating Income	264		298
Corporate and unallocated costs	-26	[1]	-105	[1]
Segment Reporting Information, Income before Income Taxes	'		'
Interest and financing costs, net	-77	[2]	-30
Other expense, net	-1		0
EARNINGS BEFORE INCOME TAXES	160		163
Segment Reporting, Disclosure of Other Information about Entity's Reportable Segments	'		'
Total Depreciation and Amortization Expense	130		105
Total Capital Expenditures	103		119
Segment Reporting Table Footnotes	'		'
Federal and state motor fuel taxes on sales by our retail segment	141		129
Stock-based compensation expense (benefit)	-18		52
Debt redemption charges	-31		0
Refining	'		'
Segment Reporting Information	'		'
OPERATING INCOME	183		259
Segment Reporting, Disclosure of Other Information about Entity's Reportable Segments	'		'
Total Depreciation and Amortization Expense	101		88
Total Capital Expenditures	68		99
Refining | Refined products	'		'
Segment Reporting Information	'		'
Total Revenues	9,500		6,744
Refining | Crude oil resales and other	'		'
Segment Reporting Information	'		'
Total Revenues	272		469
TLLP	'		'
Segment Reporting Information	'		'
OPERATING INCOME	62	[3]	24	[3]
Reconciliation of Operating Income from Segments to Consolidated	'		'
Corporate and unallocated costs	3		4
Segment Reporting, Disclosure of Other Information about Entity's Reportable Segments	'		'
Total Depreciation and Amortization Expense	16		4
Total Capital Expenditures	26		10
TLLP | Crude Oil Gathering	'		'
Segment Reporting Information	'		'
Total Revenues	25		22
TLLP | Terminalling and transportation	'		'
Segment Reporting Information	'		'
Total Revenues	100		30
Retail	'		'
Segment Reporting Information	'		'
OPERATING INCOME	19		15
Segment Reporting, Disclosure of Other Information about Entity's Reportable Segments	'		'
Total Depreciation and Amortization Expense	10		8
Total Capital Expenditures	5		7
Retail | Fuel	'		'
Segment Reporting Information	'		'
Total Revenues	3,024	[4]	1,507	[4]
Retail | Merchandise and other	'		'
Segment Reporting Information	'		'
Total Revenues	61		48
Intersegment sales	'		'
Segment Reporting Information	'		'
Total Revenues	-3,049		-1,473
Corporate	'		'
Segment Reporting, Disclosure of Other Information about Entity's Reportable Segments	'		'
Total Depreciation and Amortization Expense	3		5
Total Capital Expenditures	4		3
Segment Reporting Table Footnotes	'		'
Stock-based compensation expense (benefit)	-18		49
9.750% Senior Notes Due 2019	'		'
Segment Reporting Table Footnotes	'		'
Debt redemption charges	$31		'
[1]	Includes stock-based compensation benefit of $18 million and expense of $49 million for the three months ended March 31, 2014 and 2013, respectively. The significant impact to stock-based compensation expense during the three months ended March 31, 2014 compared to the prior periods is primarily a result of changes in Tesoro’s stock price.
[2]	Includes charges totaling $31 million for premiums and unamortized debt issuance costs associated with the redemption of the 2019 Notes during the three months ended March 31, 2014.
[3]	We present TLLP’s segment operating income net of general and administrative expenses totaling $3 million and $4 million representing TLLP’s corporate costs for the three months ended March 31, 2014 and 2013, respectively, that are not allocated to TLLP’s operating segments.
[4]	Federal and state motor fuel taxes on sales by our retail segment are included in both revenues and cost of sales in our condensed statements of consolidated operations. These taxes totaled $141 million and $129 million for the three months ended March 31, 2014 and 2013, respectively.

Condensed_Consolidating_Financ2

Condensed Consolidating Financial Information, Narrative (Details)	3 Months Ended	12 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
Guarantor Information	'	'
Percentage ownership of Tesoro Logistics LP	36.00%	36.00%
Percentage ownership of subsidiary guarantors	100.00%	'
4.250% Senior Notes Due 2017	'	'
Guarantor Information	'	'
Debt instrument interest rate	4.25%	'
Debt Instrument, Maturity Date	1-Oct-17	'
5.375% Senior Notes Due 2022	'	'
Guarantor Information	'	'
Debt instrument interest rate	5.38%	'
Debt Instrument, Maturity Date	1-Oct-22	'
5.125% Senior Notes Due 2024	'	'
Guarantor Information	'	'
Debt instrument interest rate	5.13%	'
Debt Instrument, Maturity Date	1-Apr-24	'

Condensed_Consolidating_Financ3

Condensed Consolidating Financial Information, Statement of Operations (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014		Mar. 31, 2013
Condensed Financial Statements, captions	'		'
REVENUES	$9,933		$7,347
COSTS AND EXPENSES:	'		'
Cost of sales	8,948		6,563
Operating, selling, general and administrative expenses	622		479
Depreciation and amortization expense	130		105
(Gain) loss on asset disposals and impairments	-5		7
OPERATING INCOME	238		193
Equity in earnings (loss) of subsidiaries	0		0
Interest and financing costs, net	-77	[1]	-30
Other income (expense), net	-1		0
EARNINGS BEFORE INCOME TAXES	160		163
Income tax expense (benefit)	56		58
NET EARNINGS FROM CONTINUING OPERATIONS	104		105
Loss from discontinued operations, net of tax	-1		-1
NET EARNINGS	103		104
Less: Net earnings from continuing operations attributable to noncontrolling interest	25		11
NET EARNINGS ATTRIBUTABLE TO TESORO CORPORATION	78		93
Parent	'		'
Condensed Financial Statements, captions	'		'
REVENUES	0		0
COSTS AND EXPENSES:	'		'
Cost of sales	0		0
Operating, selling, general and administrative expenses	1		1
Depreciation and amortization expense	0		0
(Gain) loss on asset disposals and impairments	0		0
OPERATING INCOME	-1		-1
Equity in earnings (loss) of subsidiaries	86		96
Interest and financing costs, net	-8		-2
Other income (expense), net	0		0
EARNINGS BEFORE INCOME TAXES	77		93
Income tax expense (benefit)	-1	[2]	0	[3]
NET EARNINGS FROM CONTINUING OPERATIONS	78		93
Loss from discontinued operations, net of tax	0		0
NET EARNINGS	78		93
Less: Net earnings from continuing operations attributable to noncontrolling interest	0		0
NET EARNINGS ATTRIBUTABLE TO TESORO CORPORATION	78		93
Guarantor Subsidiaries	'		'
Condensed Financial Statements, captions	'		'
REVENUES	11,564		9,115
COSTS AND EXPENSES:	'		'
Cost of sales	10,664		8,397
Operating, selling, general and administrative expenses	612		450
Depreciation and amortization expense	113		100
(Gain) loss on asset disposals and impairments	-1		4
OPERATING INCOME	176		164
Equity in earnings (loss) of subsidiaries	12		-6
Interest and financing costs, net	-59		-25
Other income (expense), net	-1		0
EARNINGS BEFORE INCOME TAXES	128		133
Income tax expense (benefit)	51	[2]	55	[3]
NET EARNINGS FROM CONTINUING OPERATIONS	77		78
Loss from discontinued operations, net of tax	-1		-1
NET EARNINGS	76		77
Less: Net earnings from continuing operations attributable to noncontrolling interest	0		0
NET EARNINGS ATTRIBUTABLE TO TESORO CORPORATION	76		77
Non- Guarantors	'		'
Condensed Financial Statements, captions	'		'
REVENUES	1,610		822
COSTS AND EXPENSES:	'		'
Cost of sales	1,476		756
Operating, selling, general and administrative expenses	58		28
Depreciation and amortization expense	17		5
(Gain) loss on asset disposals and impairments	-4		3
OPERATING INCOME	63		30
Equity in earnings (loss) of subsidiaries	100		44
Interest and financing costs, net	-18		-5
Other income (expense), net	8		2
EARNINGS BEFORE INCOME TAXES	153		71
Income tax expense (benefit)	6	[2]	3	[3]
NET EARNINGS FROM CONTINUING OPERATIONS	147		68
Loss from discontinued operations, net of tax	0		0
NET EARNINGS	147		68
Less: Net earnings from continuing operations attributable to noncontrolling interest	25		11
NET EARNINGS ATTRIBUTABLE TO TESORO CORPORATION	122		57
Eliminations	'		'
Condensed Financial Statements, captions	'		'
REVENUES	-3,241		-2,590
COSTS AND EXPENSES:	'		'
Cost of sales	-3,192		-2,590
Operating, selling, general and administrative expenses	-49		0
Depreciation and amortization expense	0		0
(Gain) loss on asset disposals and impairments	0		0
OPERATING INCOME	0		0
Equity in earnings (loss) of subsidiaries	-198		-134
Interest and financing costs, net	8		2
Other income (expense), net	-8		-2
EARNINGS BEFORE INCOME TAXES	-198		-134
Income tax expense (benefit)	0	[2]	0	[3]
NET EARNINGS FROM CONTINUING OPERATIONS	-198		-134
Loss from discontinued operations, net of tax	0		0
NET EARNINGS	-198		-134
Less: Net earnings from continuing operations attributable to noncontrolling interest	0		0
NET EARNINGS ATTRIBUTABLE TO TESORO CORPORATION	($198)		($134)
[1]	Includes charges totaling $31 million for premiums and unamortized debt issuance costs associated with the redemption of the 2019 Notes during the three months ended March 31, 2014.
[2]	The income tax expense (benefit) reflected in each column does not include any tax effect of the equity in earnings from corporate subsidiaries, but does include the tax effect of the corporate partners’ share of partnership income.
[3]	The income tax expense reflected in each column does not include any tax effect of the equity in earnings from corporate subsidiaries, but does include the tax effect of the corporate partners’ share of partnership income.

Condensed_Consolidating_Financ4

Condensed Consolidating Financial Information, Balance Sheet (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Current Assets:	'	'	'	'
Cash and cash equivalents	$798	$1,238	$1,972	$1,639
Receivables, less allowance for doubtful accounts	1,696	1,313	'	'
Inventories	2,777	2,565	'	'
Prepayments and other current assets	199	210	'	'
Total Current Assets	5,470	5,326	'	'
Net Property, Plant and Equipment	6,895	6,875	'	'
Investment in Subsidiaries	0	0	'	'
Long-Term Receivables from Affiliates	0	0	'	'
Long-Term Intercompany Note Receivable	0	0	'	'
Other Noncurrent Assets, Net	1,203	1,188	'	'
Total Assets	13,568	13,389	'	'
Current Liabilities:	'	'	'	'
Accounts payable	2,915	2,596	'	'
Other current liabilities	721	812	'	'
Total Current Liabilities	3,636	3,408	'	'
Long-Term Payables to Affiliates	0	0	'	'
Deferred Income Taxes	1,015	1,018	'	'
Other Noncurrent Liabilities	653	655	'	'
Debt	2,829	2,823	'	'
Long-Term Intercompany Note Payable	0	0	'	'
Equity-Tesoro Corporation	4,248	4,302	'	'
Equity-Noncontrolling Interest	1,187	1,183	'	'
Total Liabilities and Equity	13,568	13,389	'	'
Parent	'	'	'	'
Current Assets:	'	'	'	'
Cash and cash equivalents	0	0	0	0
Receivables, less allowance for doubtful accounts	0	12	'	'
Inventories	0	0	'	'
Prepayments and other current assets	91	109	'	'
Total Current Assets	91	121	'	'
Net Property, Plant and Equipment	0	0	'	'
Investment in Subsidiaries	5,323	5,242	'	'
Long-Term Receivables from Affiliates	2,982	3,080	'	'
Long-Term Intercompany Note Receivable	0	0	'	'
Other Noncurrent Assets, Net	55	58	'	'
Total Assets	8,451	8,501	'	'
Current Liabilities:	'	'	'	'
Accounts payable	1	1	'	'
Other current liabilities	116	112	'	'
Total Current Liabilities	117	113	'	'
Long-Term Payables to Affiliates	0	0	'	'
Deferred Income Taxes	1,015	1,018	'	'
Other Noncurrent Liabilities	315	320	'	'
Debt	1,622	1,614	'	'
Long-Term Intercompany Note Payable	1,134	1,134	'	'
Equity-Tesoro Corporation	4,248	4,302	'	'
Equity-Noncontrolling Interest	0	0	'	'
Total Liabilities and Equity	8,451	8,501	'	'
Guarantor Subsidiaries	'	'	'	'
Current Assets:	'	'	'	'
Cash and cash equivalents	726	1,161	1,517	1,244
Receivables, less allowance for doubtful accounts	1,326	1,182	'	'
Inventories	2,106	2,041	'	'
Prepayments and other current assets	95	89	'	'
Total Current Assets	4,253	4,473	'	'
Net Property, Plant and Equipment	5,438	5,428	'	'
Investment in Subsidiaries	36	51	'	'
Long-Term Receivables from Affiliates	0	0	'	'
Long-Term Intercompany Note Receivable	0	0	'	'
Other Noncurrent Assets, Net	1,110	1,092	'	'
Total Assets	10,837	11,044	'	'
Current Liabilities:	'	'	'	'
Accounts payable	2,411	2,110	'	'
Other current liabilities	563	679	'	'
Total Current Liabilities	2,974	2,789	'	'
Long-Term Payables to Affiliates	2,469	2,939	'	'
Deferred Income Taxes	0	0	'	'
Other Noncurrent Liabilities	330	327	'	'
Debt	43	45	'	'
Long-Term Intercompany Note Payable	0	0	'	'
Equity-Tesoro Corporation	5,021	4,944	'	'
Equity-Noncontrolling Interest	0	0	'	'
Total Liabilities and Equity	10,837	11,044	'	'
Non- Guarantors	'	'	'	'
Current Assets:	'	'	'	'
Cash and cash equivalents	72	77	455	395
Receivables, less allowance for doubtful accounts	370	119	'	'
Inventories	671	524	'	'
Prepayments and other current assets	69	57	'	'
Total Current Assets	1,182	777	'	'
Net Property, Plant and Equipment	1,457	1,447	'	'
Investment in Subsidiaries	1,615	1,520	'	'
Long-Term Receivables from Affiliates	0	0	'	'
Long-Term Intercompany Note Receivable	1,134	1,134	'	'
Other Noncurrent Assets, Net	38	38	'	'
Total Assets	5,426	4,916	'	'
Current Liabilities:	'	'	'	'
Accounts payable	503	485	'	'
Other current liabilities	98	66	'	'
Total Current Liabilities	601	551	'	'
Long-Term Payables to Affiliates	513	141	'	'
Deferred Income Taxes	0	0	'	'
Other Noncurrent Liabilities	8	8	'	'
Debt	1,164	1,164	'	'
Long-Term Intercompany Note Payable	0	0	'	'
Equity-Tesoro Corporation	1,953	1,869	'	'
Equity-Noncontrolling Interest	1,187	1,183	'	'
Total Liabilities and Equity	5,426	4,916	'	'
Eliminations	'	'	'	'
Current Assets:	'	'	'	'
Cash and cash equivalents	0	0	0	0
Receivables, less allowance for doubtful accounts	0	0	'	'
Inventories	0	0	'	'
Prepayments and other current assets	-56	-45	'	'
Total Current Assets	-56	-45	'	'
Net Property, Plant and Equipment	0	0	'	'
Investment in Subsidiaries	-6,974	-6,813	'	'
Long-Term Receivables from Affiliates	-2,982	-3,080	'	'
Long-Term Intercompany Note Receivable	-1,134	-1,134	'	'
Other Noncurrent Assets, Net	0	0	'	'
Total Assets	-11,146	-11,072	'	'
Current Liabilities:	'	'	'	'
Accounts payable	0	0	'	'
Other current liabilities	-56	-45	'	'
Total Current Liabilities	-56	-45	'	'
Long-Term Payables to Affiliates	-2,982	-3,080	'	'
Deferred Income Taxes	0	0	'	'
Other Noncurrent Liabilities	0	0	'	'
Debt	0	0	'	'
Long-Term Intercompany Note Payable	-1,134	-1,134	'	'
Equity-Tesoro Corporation	-6,974	-6,813	'	'
Equity-Noncontrolling Interest	0	0	'	'
Total Liabilities and Equity	($11,146)	($11,072)	'	'

Condensed_Consolidating_Financ5

Condensed Consolidating Financial Information, Cash Flows (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
CASH FLOWS FROM (USED IN) OPERATING ACTIVITIES	'	'
Net cash from (used in) operating activities	($150)	$247
CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES	'	'
Capital expenditures	-119	-125
Advanced payments made for Los Angeles Acquisition	'	-27
Intercompany notes, net	0	0
Other investing activities	10	2
Net cash used in investing activities	-109	-150
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES	'	'
Proceeds from debt offering	300	0
Repayments of debt	-301	0
Dividend payments	-33	-28
Net proceeds from issuance of Tesoro Logistics LP common units	0	392
Distributions to noncontrolling interest	-20	-14
Purchases of common stock	-100	-135
Premium paid on notes redemption	-19	0
Net intercompany borrowings (repayments)	0	0
Borrowings from general partner	'	0
Distributions to TLLP unitholders and general partner	0	0
Other financing activities	-8	21
Net cash from (used in) financing activities	-181	236
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	-440	333
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	1,238	1,639
CASH AND CASH EQUIVALENTS, END OF PERIOD	798	1,972
Parent	'	'
CASH FLOWS FROM (USED IN) OPERATING ACTIVITIES	'	'
Net cash from (used in) operating activities	-17	0
CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES	'	'
Capital expenditures	0	0
Advanced payments made for Los Angeles Acquisition	'	0
Intercompany notes, net	168	-91
Other investing activities	0	0
Net cash used in investing activities	168	-91
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES	'	'
Proceeds from debt offering	300	'
Repayments of debt	-300	'
Dividend payments	-33	-28
Net proceeds from issuance of Tesoro Logistics LP common units	'	0
Distributions to noncontrolling interest	0	0
Purchases of common stock	-100	-135
Premium paid on notes redemption	-19	'
Net intercompany borrowings (repayments)	0	0
Borrowings from general partner	'	230
Distributions to TLLP unitholders and general partner	4	3
Other financing activities	-3	21
Net cash from (used in) financing activities	-151	91
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	0	0
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	0	0
CASH AND CASH EQUIVALENTS, END OF PERIOD	0	0
Guarantor Subsidiaries	'	'
CASH FLOWS FROM (USED IN) OPERATING ACTIVITIES	'	'
Net cash from (used in) operating activities	154	135
CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES	'	'
Capital expenditures	-92	-115
Advanced payments made for Los Angeles Acquisition	'	-27
Intercompany notes, net	0	0
Other investing activities	0	0
Net cash used in investing activities	-92	-142
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES	'	'
Proceeds from debt offering	0	'
Repayments of debt	-1	'
Dividend payments	0	0
Net proceeds from issuance of Tesoro Logistics LP common units	'	0
Distributions to noncontrolling interest	0	0
Purchases of common stock	0	0
Premium paid on notes redemption	0	'
Net intercompany borrowings (repayments)	-501	273
Borrowings from general partner	'	0
Distributions to TLLP unitholders and general partner	5	4
Other financing activities	0	3
Net cash from (used in) financing activities	-497	280
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	-435	273
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	1,161	1,244
CASH AND CASH EQUIVALENTS, END OF PERIOD	726	1,517
Non- Guarantors	'	'
CASH FLOWS FROM (USED IN) OPERATING ACTIVITIES	'	'
Net cash from (used in) operating activities	-287	112
CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES	'	'
Capital expenditures	-27	-10
Advanced payments made for Los Angeles Acquisition	'	0
Intercompany notes, net	0	0
Other investing activities	10	2
Net cash used in investing activities	-17	-8
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES	'	'
Proceeds from debt offering	0	'
Repayments of debt	0	'
Dividend payments	0	0
Net proceeds from issuance of Tesoro Logistics LP common units	'	392
Distributions to noncontrolling interest	-20	-14
Purchases of common stock	0	0
Premium paid on notes redemption	0	'
Net intercompany borrowings (repayments)	333	-182
Borrowings from general partner	'	-230
Distributions to TLLP unitholders and general partner	-9	-7
Other financing activities	-5	-3
Net cash from (used in) financing activities	299	-44
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	-5	60
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	77	395
CASH AND CASH EQUIVALENTS, END OF PERIOD	72	455
Eliminations	'	'
CASH FLOWS FROM (USED IN) OPERATING ACTIVITIES	'	'
Net cash from (used in) operating activities	0	0
CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES	'	'
Capital expenditures	0	0
Advanced payments made for Los Angeles Acquisition	'	0
Intercompany notes, net	-168	91
Other investing activities	0	0
Net cash used in investing activities	-168	91
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES	'	'
Proceeds from debt offering	0	'
Repayments of debt	0	'
Dividend payments	0	0
Net proceeds from issuance of Tesoro Logistics LP common units	'	0
Distributions to noncontrolling interest	0	0
Purchases of common stock	0	0
Premium paid on notes redemption	0	'
Net intercompany borrowings (repayments)	168	-91
Borrowings from general partner	'	0
Distributions to TLLP unitholders and general partner	0	0
Other financing activities	0	0
Net cash from (used in) financing activities	168	-91
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	0	0
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	0	0
CASH AND CASH EQUIVALENTS, END OF PERIOD	$0	$0