Statements of Consolidated Cash Flows (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011		Dec. 31, 2010		Dec. 31, 2009
CASH FLOWS FROM (USED IN) OPERATING ACTIVITIES
Net earnings (loss)	$ 563	[1]	$ (29)	[1]	$ (140)
Adjustments to reconcile net earnings (loss) to net cash from (used in) operating activities:
Depreciation and amortization expense	417		422		426
Amortization of debt issuance costs and discounts	17		18		13
Loss on asset disposals and impairments	67		54		74
Stock-based compensation expense	53		58		46
Write-off of unamortized debt issue costs and discounts	14		0		0
Provisions for bad debts	1		1		9
Deferred income taxes	200		9		95
Excess tax benefits from equity-based compensation arrangements	(13)		(3)		(2)
Other changes in non-current assets and liabilities	(136)		(136)		(103)
Changes in current assets and current liabilities:
Receivables	(365)		208		(387)
Inventories	(506)		(635)		165
Prepayments and other	(71)		(34)		17
Accounts payable and accrued liabilities	448		452		450
Net cash from operating activities	689		385		663
CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES
Capital expenditures	(298)		(297)		(437)
Proceeds from asset sales	7		2		1
Net cash used in investing activities	(291)		(295)		(436)
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES
Proceeds from debt offerings, net of discount and issuance costs	0		0		282
Borrowings under revolving credit agreements	312		216		418
Repayments on revolving credit agreements	(295)		(66)		(484)
Repayments of debt	(329)		(3)		(2)
Dividend payments	0		0		(49)
Proceeds from stock options exercised	12		5		4
Proceeds from issuance of common units -Tesoro Logistics LP	288		0		0
Distributions to noncontrolling interest	(9)		0		0
Repurchases of common stock	(101)		(2)		(2)
Excess tax benefits from equity-based compensation arrangements	13		3		2
Financing costs and other	(37)		(8)		(3)
Net cash from (used) in financing activities	(146)		145		166
INCREASE IN CASH AND CASH EQUIVALENTS	252		235		393
CASH AND CASH EQUIVALENTS, BEGINNING OF YEAR	648		413		20
CASH AND CASH EQUIVALENTS, END OF YEAR	900		648		413
SUPPLEMENTAL CASH FLOW DISCLOSURES
Interest paid, net of capitalized interest	114		115		95
Income taxes paid (refunded), net	197		(112)		(18)
SUPPLEMENTAL DISCLOSURE OF NON-CASH INVESTING ACTIVITIES
Capital expenditures included in accounts payable and accrued liabilities at end of year	$ 45		$ 23		$ 34

[1] Includes $37 million and $67 million in insurance recoveries related to the April 2, 2010 incident at our Washington refinery for the three months ended June 30, 2011 and December 31, 2010, respectively.