Phillips 66 (PSX) 10-Q 31 Jul 14 2014 Q2 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information (USD $)	6 Months Ended
	Jun. 30, 2014	Dec. 31, 2013
Document and Entity Information [Abstract]	'	'
Entity Registrant Name	'Phillips 66	'
Entity Central Index Key	'0001534701	'
Trading Symbol	'PSX	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Large Accelerated Filer	'
Document Type	'10-Q	'
Document Period End Date	30-Jun-14	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q2	'
Amendment Flag	'false	'
Entity Common Stock, Shares Outstanding	558,888,518	'
Common Stock, Par or Stated Value Per Share	$0.01	$0.01

Consolidated_Statement_of_Inco

Consolidated Statement of Income (USD $)	3 Months Ended				6 Months Ended
In Millions, except Share data in Thousands, unless otherwise specified	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014		Jun. 30, 2013
Sales and other operating revenues	'		'		'		'
Sales and other operating revenues	$45,549	[1]	$43,190	[1]	$85,832	[1]	$84,401	[1]
Equity in earnings of affiliates	764		618		1,542		1,657
Net gain on dispositions	9		41		16		42
Other income	17		49		48		72
Total Revenues and Other Income	46,339		43,898		87,438		86,172
Costs and Expenses	'		'		'		'
Purchased crude oil and products	39,316		37,257		73,697		72,500
Operating expenses	1,077		1,032		2,167		2,010
Selling, general and administrative expenses	412		368		814		695
Depreciation and amortization	239		229		473		471
Impairments	3		1		4		25
Taxes other than income taxes	3,832	[1]	3,501	[1]	7,470	[1]	6,825	[1]
Accretion on discounted liabilities	6		6		12		12
Interest and debt expense	66		69		134		139
Foreign currency transaction (gains) losses	29		-18		10		-16
Total Costs and Expenses	44,980		42,445		84,781		82,661
Income from continuing operations before income taxes	1,359		1,453		2,657		3,511
Provision for income taxes	487		507		913		1,170
Income From Continuing Operations	872		946		1,744		2,341
Income from discontinued operations	'	[2]	14	[2],[3]	706	[2],[4]	29	[2],[5]
Net Income	872		960		2,450		2,370
Less: net income attributable to noncontrolling interests	9		2		15		5
Net Income Attributable to Phillips 66	863		958		2,435		2,365
Amounts Attributable to Phillips 66 Common Stockholders:	'		'		'		'
Income from continuing operations	863		944		1,729		2,336
Income from discontinued operations	'		$14		$706		$29
Basic	'		'		'		'
Continuing operations	$1.52		$1.53		$3		$3.75
Discontinued operations	'		$0.02		$1.23		$0.05
Net Income Attributable to Phillips 66 Per Share of Common Stock	$1.52		$1.55		$4.23		$3.80
Diluted	'		'		'		'
Continuing operations	$1.51		$1.51		$2.98		$3.72
Discontinued operations	'		$0.02		$1.21		$0.04
Net Income Attributable to Phillips 66 Per Share of Common Stock	$1.51		$1.53		$4.19		$3.76
Dividends Paid Per Share of Common Stock (dollars)	$0.50		$0.31		$0.89		$0.63
Average Common Shares Outstanding (in thousands)	'		'		'		'
Basic	565,799	[2]	619,143	[2]	574,876	[2]	622,086	[2]
Diluted	571,285	[2]	624,907	[2]	580,795	[2]	628,377	[2]
[1]	Includes excise taxes on petroleum products sales: $3,743, $3,428, $7,265, $6,686
[2]	Net of provision for income taxes on discontinued operations: $-, $7, $5, $15
[3]	Net of provision for income taxes on discontinued operations: $-, $-, $7, $-, $7
[4]	Net of provision for income taxes on discontinued operations: $-, $-, $5, $-, $5
[5]	Net of provision for income taxes on discontinued operations: $-, $-, $15, $-, $15

Consolidated_Statement_of_Inco1

Consolidated Statement of Income (Parenthetical) (USD $)	3 Months Ended		6 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Income Statement [Abstract]	'	'	'	'
Includes excise taxes on petroleum products sales	$3,743	$3,428	$7,265	$6,686
Net of provision for income taxes on discontinued operations	'	$7	$5	$15

Consolidated_Statement_of_Comp

Consolidated Statement of Comprehensive Income (USD $)	3 Months Ended		6 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Statement of Comprehensive Income [Abstract]	'	'	'	'
Net Income	$872	$960	$2,450	$2,370
Actuarial gain/loss:	'	'	'	'
Amortization to net income of net actuarial loss	14	24	26	50
Plans sponsored by equity affiliates	3	5	6	-8
Income taxes on defined benefit plans	-6	-11	-11	-14
Defined benefit plans, net of tax	11	18	21	28
Foreign currency translation adjustments	96	38	127	-284
Income taxes on foreign currency translation adjustments	2	-1	1	3
Foreign currency translation adjustments, net of tax	98	37	128	-281
Hedging activities by equity affiliates	'	1	'	1
Income taxes on hedging activities by equity affiliates	'	'	'	'
Hedging activities by equity affiliates, net of tax	'	1	'	1
Other Comprehensive Income (Loss), Net of Tax	109	56	149	-252
Comprehensive Income	981	1,016	2,599	2,118
Less: comprehensive income attributable to noncontrolling interests	9	2	15	5
Comprehensive Income Attributable to Phillips 66	$972	$1,014	$2,584	$2,113

Consolidated_Balance_Sheet

Consolidated Balance Sheet (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Assets	'	'
Cash and cash equivalents	$4,956	$5,400
Accounts and notes receivable (net of allowances of $42 million in 2014 and $47 million in 2013)	7,925	7,900
Accounts and notes receivable - related parties	2,185	1,732
Inventories	4,928	3,354
Prepaid expenses and other current assets	611	851
Total Current Assets	20,605	19,237
Investments and long-term receivables	10,038	11,220
Net properties, plants and equipment	16,092	15,398
Goodwill	3,140	3,096
Intangibles	735	698
Other assets	212	149
Total Assets	50,822	49,798
Liabilities	'	'
Accounts payable	11,529	9,948
Accounts payable - related parties	1,320	1,142
Short-term debt	38	24
Accrued income and other taxes	1,085	872
Employee benefit obligations	304	476
Other accruals	844	469
Total Current Liabilities	15,120	12,931
Long-term debt	6,174	6,131
Asset retirement obligations and accrued environmental costs	713	700
Deferred income taxes	5,686	6,125
Employee benefit obligations	825	921
Other liabilities and deferred credits	349	598
Total Liabilities	28,867	27,406
Equity	'	'
Common stock (2,500,000,000 shares authorized at $.01 par value) Issued (2014—636,345,141 shares; 2013—634,285,955 shares) Par Value	6	6
Capital in excess of par	18,986	18,887
Treasury stock (at cost: 2014—77,456,623 shares; 2013—44,106,380 shares)	-5,208	-2,602
Retained earnings	7,541	5,622
Accumulated other comprehensive income	186	37
Total Stockholders' Equity	21,511	21,950
Noncontrolling interests	444	442
Total Equity	21,955	22,392
Total Liabilities and Equity	$50,822	$49,798

Consolidated_Balance_Sheet_Par

Consolidated Balance Sheet (Parenthetical) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Millions, except Share data, unless otherwise specified
Accounts and notes receivable - allowance	$42	$47
Common stock, shares authorized	2,500,000,000	2,500,000,000
Common stock, par value	$0.01	$0.01
Common stock, shares Issued	636,345,141	634,285,955
Treasury stock, shares	77,456,623	44,106,380

Consolidated_Statement_of_Cash

Consolidated Statement of Cash Flows (USD $)	6 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014		Jun. 30, 2013
Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract]	'		'
Net income	$2,450		$2,370
Adjustments to reconcile net income to net cash provided by operating activities	'		'
Depreciation and amortization	473		471
Impairments	4		25
Accretion on discounted liabilities	12		12
Deferred taxes	-455		162
Undistributed equity earnings	379		-21
Net gain on dispositions	-16		-42
Income from discontinued operations	-706	[1],[2]	-29	[1],[3]
Other	69		1
Working capital adjustments	'		'
Decrease (increase) in accounts and notes receivable	-291		411
Decrease (increase) in inventories	-1,564		-1,668
Decrease (increase) in prepaid expenses and other current assets	-34		-154
Increase (decrease) in accounts payable	1,668		1,634
Increase (decrease) in taxes and other accruals	237		-27
Net cash provided by continuing operating activities	2,226		3,145
Net cash provided by discontinued operations	2		36
Net Cash Provided by Operating Activities	2,228		3,181
Cash Flows From Investing Activities	'		'
Capital expenditures and investments	-1,133		-748
Proceeds from asset dispositions	657	[4]	69	[4]
Advances/loans—related parties	-3		'
Collection of advances/loans—related parties	'		100
Other	34		'
Net cash used in continuing investing activities	-445		-579
Net cash used in discontinued operations	-2		-10
Net Cash Used in Investing Activities	-447		-589
Cash Flows From Financing Activities	'		'
Repayment of debt	-17		-505
Issuance of common stock	-12		-3
Repurchase of common stock	-1,256		-928
Share exchange—PSPI transaction	-450		'
Dividends paid on common stock	-510		-386
Distributions to noncontrolling interests	-13		-1
Other	25		-3
Net cash used in continuing financing activities	-2,233		-1,826
Net Cash Used in Financing Activities	-2,233		-1,826
Effect of Exchange Rate Changes on Cash and Cash Equivalents	8		-20
Net Change in Cash and Cash Equivalents	-444		746
Cash and cash equivalents at beginning of period	5,400		3,474
Cash and Cash Equivalents at End of Period	$4,956		$4,220
[1]	Net of provision for income taxes on discontinued operations: $-, $7, $5, $15
[2]	Net of provision for income taxes on discontinued operations: $-, $-, $5, $-, $5
[3]	Net of provision for income taxes on discontinued operations: $-, $-, $15, $-, $15
[4]	Includes return of investments in equity affiliates.

Consolidated_Statement_of_Chan

Consolidated Statement of Changes in Equity (USD $)	Total	TreasuryStockRepurchasePlan [Member]	TreasuryStockReceivedOnDisposition [Member]	Par Value [Member]	Capital in Excess of Par [Member]	Treasury Stock [Member]	Treasury Stock [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Noncontrolling Interests [Member]
In Millions, except Share data, unless otherwise specified	USD ($)			USD ($)	USD ($)	USD ($)	TreasuryStockRepurchasePlan [Member]	TreasuryStockReceivedOnDisposition [Member]	USD ($)	USD ($)	USD ($)
							USD ($)	USD ($)
Beginning Balance at Dec. 31, 2012	$20,806	'	'	$6	$18,726	($356)	'	'	$2,713	($314)	$31
Beginning Balance, Treasury shares at Dec. 31, 2012	7,604,000	'	'	'	'	'	'	'	'	'	'
Beginning Balance, Common shares at Dec. 31, 2012	631,150,000	'	'	'	'	'	'	'	'	'	'
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'	'	'	'	'	'	'
Net income	2,370	'	'	'	'	'	'	'	2,365	'	5
Other comprehensive income (Loss)	-252	'	'	'	'	'	'	'	'	-252	'
Cash dividends paid on common stock	-386	'	'	'	'	'	'	'	-386	'	'
Treasury stock, Repurchase of common stock and share exchange	-928	'	'	'	'	-928	'	'	'	'	'
Benefit plan activity	'	'	'	'	89	'	'	'	'	'	'
Benefit plan activity	'	'	'	'	'	'	'	'	-5	'	'
Benefit plan activity	84	'	'	'	'	'	'	'	'	'	'
Distributions to noncontrolling interests and other	'	'	'	'	-3	'	'	'	'	'	'
Distributions to noncontrolling interests and other	'	'	'	'	'	'	'	'	'	'	-1
Distributions to noncontrolling interests and other	-4	'	'	'	'	'	'	'	'	'	'
Shares	'	'	'	'	'	'	'	'	'	'	'
Shares issued - stock-based compensation	2,509,000	'	'	'	'	'	'	'	'	'	'
Repurchase of common stock and share exchange, shares	15,025,000	'	'	'	'	'	'	'	'	'	'
Ending Balance at Jun. 30, 2013	21,690	'	'	6	18,812	-1,284	'	'	4,687	-566	35
Ending Balance, Treasury shares at Jun. 30, 2013	22,629,000	'	'	'	'	'	'	'	'	'	'
Ending Balance, Common shares at Jun. 30, 2013	633,659,000	'	'	'	'	'	'	'	'	'	'
Beginning Balance at Dec. 31, 2013	22,392	'	'	6	18,887	-2,602	'	'	5,622	37	442
Beginning Balance, Treasury shares at Dec. 31, 2013	44,106,380	'	'	'	'	'	'	'	'	'	'
Beginning Balance, Common shares at Dec. 31, 2013	634,285,955	'	'	'	'	'	'	'	'	'	'
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'	'	'	'	'	'	'
Net income	2,450	'	'	'	'	'	'	'	2,435	'	15
Other comprehensive income (Loss)	149	'	'	'	'	'	'	'	'	149	'
Cash dividends paid on common stock	-510	'	'	'	'	'	'	'	-510	'	'
Treasury stock, Repurchase of common stock and share exchange	'	'	'	'	'	'	-1,256	-1,350	'	'	'
Benefit plan activity	'	'	'	'	99	'	'	'	'	'	'
Benefit plan activity	'	'	'	'	'	'	'	'	-6	'	'
Benefit plan activity	93	'	'	'	'	'	'	'	'	'	'
Distributions to noncontrolling interests and other	'	'	'	'	'	'	'	'	'	'	'
Distributions to noncontrolling interests and other	'	'	'	'	'	'	'	'	'	'	-13
Distributions to noncontrolling interests and other	-13	'	'	'	'	'	'	'	'	'	'
Shares	'	'	'	'	'	'	'	'	'	'	'
Shares issued - stock-based compensation	2,059,000	'	'	'	'	'	'	'	'	'	'
Repurchase of common stock and share exchange, shares	'	15,928,000	17,423,000	'	'	'	'	'	'	'	'
Ending Balance at Jun. 30, 2014	$21,955	'	'	$6	$18,986	($5,208)	'	'	$7,541	$186	$444
Ending Balance, Treasury shares at Jun. 30, 2014	77,456,623	'	'	'	'	'	'	'	'	'	'
Ending Balance, Common shares at Jun. 30, 2014	636,345,141	'	'	'	'	'	'	'	'	'	'

Interim_Financial_Information

Interim Financial Information	6 Months Ended
	Jun. 30, 2014
Additional Basis Of Presentation Disclosure [Abstract]	'
Interim Financial Information	'
	Interim Financial Information
	The interim financial information presented in the financial statements included in this report is unaudited and includes all known accruals and adjustments necessary, in the opinion of management, for a fair presentation of the consolidated financial position of Phillips 66 and its results of operations and cash flows for the periods presented. Unless otherwise specified, all such adjustments are of a normal and recurring nature. Certain notes and other information have been condensed or omitted from the interim financial statements included in this report. Therefore, these interim financial statements should be read in conjunction with the consolidated financial statements and notes included in our 2013 Annual Report on Form 10-K. The results of operations for the three and six months ended June 30, 2014, are not necessarily indicative of the results to be expected for the full year.
	Certain prior period financial information has been recast to reflect the change in the composition of our operating segments. See Note 20—Segment Disclosures and Related Information for additional information.

Variable_Interest_Entities_VIE

Variable Interest Entities (VIEs)	6 Months Ended
	Jun. 30, 2014
Variable Interest Entities [Abstract]	'
Variable Interest Entities (VIEs)	'
	Variable Interest Entities (VIEs)
	In 2013, we formed Phillips 66 Partners LP, a master limited partnership, to own, operate, develop and acquire primarily fee-based crude oil, refined petroleum product and natural gas liquids pipelines and terminals, as well as other transportation and midstream assets. We consolidate Phillips 66 Partners as we determined that Phillips 66 Partners is a VIE and we are the primary beneficiary. As general partner, we have the ability to control its financial interests, as well as the ability to direct the activities of Phillip 66 Partners that most significantly impact its economic performance. See Note 22—Phillips 66 Partners LP for additional information.
	We hold significant variable interests in VIEs that have not been consolidated because we are not considered the primary beneficiary. Information on these VIEs follows:
	Merey Sweeny, L.P. (MSLP) is a limited partnership that owns a delayed coker and related facilities at the Sweeny Refinery. As discussed more fully in Note 6—Investments, Loans and Long-Term Receivables, in August 2009, a call right was exercised to acquire the 50 percent ownership interest in MSLP of the co-venturer, Petróleos de Venezuela S.A. (PDVSA). That exercise was challenged, and the dispute has been arbitrated. In April 2014, the arbitral tribunal upheld the exercise of the call right and the acquisition of the 50 percent ownership interest. In July 2014, PDVSA filed a petition to vacate the tribunal’s award. Until this matter is settled, we will continue to use the equity method of accounting for MSLP, and the VIE analysis below is based on the ownership and governance structure in place prior to the exercise of the call right. MSLP is a VIE because, in securing lender consents in connection with our separation from ConocoPhillips in 2012 (the Separation), we provided a 100 percent debt guarantee to the lender of the 8.85% senior notes issued by MSLP. PDVSA did not participate in the debt guarantee. In our VIE assessment, this disproportionate debt guarantee, plus other liquidity support provided jointly by us and PDVSA independently of equity ownership, results in MSLP not being exposed to all potential losses. We have determined we are not the primary beneficiary while our call exercise award is subject to vacatur because under the partnership agreement the co-venturers jointly direct the activities of MSLP that most significantly impact economic performance. At June 30, 2014, our maximum exposure to loss represented the outstanding debt principal balance of $203 million and our investment of $131 million.
	We have a 50 percent ownership interest with a 50 percent governance interest in Excel Paralubes (Excel). Excel is a VIE because, in securing lender consents in connection with the Separation, ConocoPhillips provided a 50 percent debt guarantee to the lender of the 7.43% senior secured bonds issued by Excel. We provided a full indemnity to ConocoPhillips for this debt guarantee. Our co-venturer did not participate in the debt guarantee. In our assessment of the VIE, this debt guarantee, plus other liquidity support up to $60 million provided jointly by us and our co-venturer independently of equity ownership, results in Excel not being exposed to all potential losses. We have determined we are not the primary beneficiary because we and our co-venturer jointly direct the activities of Excel that most significantly impact economic performance. We continue to use equity method accounting for this investment. At June 30, 2014, our maximum exposure to loss represented 50 percent of the outstanding debt principal balance of $86 million, or
	$43 million, plus half of the $60 million liquidity support, or $30 million. The book value of our investment in Excel at June 30, 2014, was $127 million.
	In 2013, we entered into a multi-year consignment fuels agreement with a marketer who we currently support with debt guarantees. Pursuant to the consignment fuels agreement, we own the fuels inventory, control the fuel marketing at each site and pay a fixed monthly fee to the marketer. We determined the consignment fuels agreement and the debt guarantees together create a variable interest in the marketer, with the marketer not being exposed to all potential losses. We determined we are not the primary beneficiary because we do not have the power to direct the activities that most significantly impact the economic performance of the marketer or its service stations. We have no ownership interest in the marketer. At June 30, 2014, our maximum exposure to loss represented the outstanding debt balance of $190 million and the fixed annual contractual payments under the consignment fuels agreement of approximately $80 million.

Inventories

Inventories	6 Months Ended
	Jun. 30, 2014
Inventory Disclosure [Abstract]	'
Inventories	'
	Inventories
	Inventories consisted of the following:
		Millions of Dollars
		June 30		December 31
		2014		2013
	Crude oil and petroleum products	$	4,666	3,093
	Materials and supplies	262		261
		$	4,928	3,354
	Inventories valued on the last-in, first-out (LIFO) basis totaled $4,529 million and $2,945 million at June 30, 2014, and December 31, 2013, respectively. The estimated excess of current replacement cost over LIFO cost of inventories amounted to approximately $8,000 million and $7,600 million at June 30, 2014, and December 31, 2013, respectively.

Business_Combinations

Business Combinations	6 Months Ended
	Jun. 30, 2014
Business Combinations [Abstract]	'
Business Combination Disclosure [Text Block]	'
	Business Combinations
	In March 2014, we paid approximately $70 million, net of acquired cash, to acquire our co-venturer's interest in an entity that operates a power and steam generation plant located in Texas. This acquisition provided us with full operational control over a key facility providing utilities and other services to one of our refineries. We provisionally recorded $141 million of net properties, plants and equipment (PP&E), $40 million of intangible assets, $39 million of goodwill and $68 million of debt. The goodwill is the result of synergies this acquisition created with the refinery to which it provides utilities and other services.
	In July 2014, we acquired Spectrum Corporation, a private label and specialty lubricants business headquartered in Memphis, Tennessee. The acquisition supports our plans to selectively grow stable-return businesses in our Marketing and Specialties (M&S) segment. We funded this acquisition with cash on hand.
	The completion of our acquisition accounting for these transactions is subject to the finalization of valuations of the assets acquired and liabilities assumed.

Assets_Held_for_Sale_or_Sold

Assets Held for Sale or Sold	6 Months Ended
	Jun. 30, 2014
Disposal Group, Including Discontinued Operation, Additional Disclosures [Abstract]	'
Assets Held for Sale or Sold	'
	Assets Held for Sale or Sold
	In December 2013, we entered into an agreement to exchange the stock of Phillips Specialty Products Inc. (PSPI), a flow improver business, which was included in our M&S segment, for shares of Phillips 66 common stock owned by the other party. Accordingly, as of December 31, 2013, the net assets of PSPI were classified as held for sale and the results of operations of PSPI were reported as discontinued operations. At December 31, 2013, PSPI had a net carrying value of $193 million, which primarily included $58 million of net PP&E and $117 million of allocated goodwill. The carrying amounts of PSPI’s assets and liabilities at December 31, 2013, were reported in the “Prepaid expenses and other current assets” and “Other accruals” lines of our consolidated balance sheet, respectively.
	On February 25, 2014, we completed the PSPI share exchange, resulting in the receipt of approximately 17.4 million shares of Phillips 66 common stock, which are held as treasury shares, and the recognition of a before-tax gain of $696 million. At the time of the disposition, PSPI had a net carrying value of $685 million, which primarily included $481 million of cash and cash equivalents, $60 million of net PP&E and $117 million of allocated goodwill. Cash and cash equivalents of $450 million included in PSPI’s net carrying value is reflected as a financing cash outflow in the “Share exchange—PSPI transaction” line of our consolidated statement of cash flows. Revenues, income before-tax and net income from discontinued operations, excluding the recognized before-tax gain of $696 million, were not material for the six-month periods ended June 30, 2014 and 2013.
	In May 2013, we sold our E-Gas™ Technology business. The business was included in our M&S segment and at the time of disposition had a net carrying value of approximately $13 million, including a goodwill allocation. The $40 million before-tax gain is included in the “Net gain on dispositions” line of our consolidated income statement.

Investments_Loans_and_LongTerm

Investments, Loans and Long-Term Receivables	6 Months Ended
	Jun. 30, 2014
Equity Method Investments and Joint Ventures [Abstract]	'
Investments, Loans and Long-Term Receivables	'
	Investments, Loans and Long-Term Receivables
	Equity Investments
	Summarized 100 percent financial information for WRB Refining LP (WRB) and Chevron Phillips Chemical Company LLC (CPChem) were as follows:
		Millions of Dollars
		Three Months Ended			Six Months Ended
		30-Jun			30-Jun
		2014		2013	2014	2013
	Revenues	$	8,685	8,080	16,683	16,220
	Income before income taxes	1,186		997	2,310	2,765
	Net income	1,162		975	2,263	2,725
	WRB
	WRB is a 50-percent-owned business venture with Cenovus Energy Inc. (Cenovus). Cenovus was obligated to contribute $7.5 billion, plus accrued interest, to WRB over a 10-year period that began in 2007. In the first quarter of 2014, Cenovus prepaid its remaining balance under this obligation. As a result, WRB declared a special dividend, which was distributed to the co-venturers in March 2014. Of the $1,232 million that we received, $760 million was considered a return on our investment in WRB (an operating cash inflow), and $472 million was considered a return of our investment in WRB (an investing cash inflow). At June 30, 2014, the book value of our investment in WRB was $1,889 million and our basis difference was $3,465 million.
	Other
	MSLP owns a delayed coker and related facilities at the Sweeny Refinery. MSLP processes long residue, which is produced from heavy sour crude oil, for a processing fee. Fuel-grade petroleum coke is produced as a by-product and becomes the property of MSLP. Prior to August 28, 2009, MSLP was owned 50/50 by ConocoPhillips and PDVSA. Under the agreements that govern the relationships between the partners, certain defaults by PDVSA with respect to supply of crude oil to the Sweeny Refinery triggered the right to acquire PDVSA’s 50 percent ownership interest in MSLP, which was exercised on August 28, 2009. PDVSA initiated arbitration with the International Chamber of Commerce challenging the exercise of the call right and claiming it was invalid. The arbitral tribunal held hearings on the merits of the dispute in December 2012, and post-hearing briefs were exchanged in March 2013. The arbitral tribunal issued its ruling in April 2014, which upheld the exercise of the call right and the acquisition of the 50 percent ownership interest. In July 2014, PDVSA filed a petition in U.S. district court to vacate the tribunal’s ruling.  Following the Separation, Phillips 66 generally indemnifies ConocoPhillips for liabilities, if any, arising out of the exercise of the call right or otherwise with respect to the joint venture or the refinery. Until this matter is settled, we will continue to use the equity method of accounting for our investment in MSLP.

Properties_Plants_and_Equipmen

Properties, Plants and Equipment	6 Months Ended
	Jun. 30, 2014
Property, Plant and Equipment [Abstract]	'
Properties, Plants and Equipment	'
	Properties, Plants and Equipment
	Our investment in PP&E, with the associated accumulated depreciation and amortization (Accum. D&A), was:
		Millions of Dollars
		30-Jun-14				31-Dec-13
		Gross		Accum.	Net	Gross	Accum.	Net
		PP&E		D&A	PP&E	PP&E	D&A	PP&E
	Midstream	$	3,381	1,141	2,240	2,865	1,104	1,761
	Chemicals	—		—	—	—	—	—
	Refining	19,644		7,053	12,591	19,191	6,718	12,473
	Marketing and Specialties	1,499		765	734	1,395	749	646
	Corporate and Other	1,026		499	527	975	457	518
	Discontinued Operations*	—		—	—	—	—	—
		$	25,550	9,458	16,092	24,426	9,028	15,398
	* At December 31, 2013, net PP&E of $58 million associated with discontinued operations was classified as current assets.

Goodwill

Goodwill	6 Months Ended
	Jun. 30, 2014
Goodwill [Abstract]	'
Goodwill Disclosure [Text Block]	'
	Goodwill
	Effective January 1, 2014, we reallocated $52 million of goodwill from the Refining segment to the M&S segment based upon the realignment of certain assets between the reporting units. Goodwill was reassigned to the reporting units using a relative fair value approach. Goodwill impairment testing was completed and no impairment recognition was required. See Note 20—Segment Disclosures and Related Information for additional information on this segment realignment.
	In March 2014, we acquired our co-venturer’s interest in an entity that operates a power and steam generation plant, and provisionally recorded $39 million of goodwill related to this transaction. The completion of our acquisition accounting is subject to the finalization of valuations of the assets acquired and liabilities assumed. See Note 4—Business Combinations, for additional information on this acquisition.
	See Note 5—Assets Held for Sale or Sold for additional information on goodwill allocated to assets held for sale or sold.
	The carrying amount of goodwill was as follows:
		Millions of Dollars
		June 30		December 31
		2014		2013
	Midstream	$	518	518
	Refining	1,872		1,867
	Marketing and Specialties	750		711
		$	3,140	3,096

Impairments

Impairments	6 Months Ended
	Jun. 30, 2014
Impairment Of Long Lived Assets Abstract [Abstract]	'
Impairments	'
	Impairments
	The three- and six-month periods ended June 30, 2014 and 2013, included the following before-tax impairment charges:
		Millions of Dollars
		Three Months Ended			Six Months Ended
		30-Jun			30-Jun
		2014		2013	2014	2013
	Refining	$	1	1	2	1
	Marketing and Specialties	2		—	2	15
	Corporate and Other	—		—	—	9
		$	3	1	4	25
	During the six-month period of 2013, we recorded a $15 million held-for-use impairment in our M&S segment, primarily related to PP&E associated with our planned exit from the composite graphite business.

Earnings_Per_Share

Earnings Per Share	6 Months Ended
	Jun. 30, 2014
Earnings Per Share [Abstract]	'
Earnings Per Share	'
	Earnings Per Share
	The numerator of basic earnings per share (EPS) is net income attributable to Phillips 66, reduced by noncancelable dividends paid on unvested share-based employee awards during the vesting period (participating securities). The denominator of basic EPS is the sum of the daily weighted-average number of common shares outstanding during the periods presented and fully vested stock and unit awards that have not yet been issued as common stock. The numerator of diluted EPS is also based on net income attributable to Phillips 66, which is reduced only by dividend equivalents paid on participating securities for which the dividends are more dilutive than the participation of the awards in the earnings of the periods presented. To the extent unvested stock, unit or option awards and vested unexercised stock options are dilutive, they are included with the weighted-average common shares outstanding in the denominator. Treasury stock is excluded from the denominator in both basic and diluted EPS.
		Three Months Ended							Six Months Ended
		30-Jun							30-Jun
		2014				2013			2014			2013
		Basic			Diluted	Basic		Diluted	Basic		Diluted	Basic		Diluted
	Amounts attributed to Phillips 66 Common Stockholders (millions):
	Income from continuing operations attributable to Phillips 66	$	863		863	944		944	1,729		1,729	2,336		2,336
	Income allocated to participating securities	(2		)	—	(1	)	—	(3	)	—	(2	)	—
	Income from continuing operations available to common stockholders	861			863	943		944	1,726		1,729	2,334		2,336
	Discontinued operations	—			—	14		14	706		706	29		29
	Net Income available to common stockholders	$	861		863	957		958	2,432		2,435	2,363		2,365
	Weighted-average common shares outstanding (thousands):	562,056			565,799	615,380		619,143	570,992		574,876	618,328		622,086
	Effect of stock-based compensation	3,743			5,486	3,763		5,764	3,884		5,919	3,758		6,291
	Weighted-average common shares outstanding—EPS	565,799			571,285	619,143		624,907	574,876		580,795	622,086		628,377
	Earnings Per Share of Common Stock (dollars):
	Income from continuing operations attributable to Phillips 66	$	1.52		1.51	1.53		1.51	3		2.98	3.75		3.72
	Discontinued operations	—			—	0.02		0.02	1.23		1.21	0.05		0.04
	Earnings Per Share	$	1.52		1.51	1.55		1.53	4.23		4.19	3.8		3.76

Debt

Debt	6 Months Ended
	Jun. 30, 2014
Debt Disclosure [Abstract]	'
Debt	'
	Debt
	At both June 30, 2014, and December 31, 2013, we had no direct outstanding borrowings under our $4.5 billion revolving credit agreement or our $696 million trade receivables securitization facility. However, as of both June 30, 2014, and December 31, 2013, $51 million in letters of credit had been issued that were supported by our revolving credit agreement. As of June 30, 2014, no letters of credit were outstanding under our trade receivables securitization facility. As of December 31, 2013, $26 million in letters of credit had been issued that were collateralized by trade receivables held by a subsidiary under our trade receivables securitization facility. At June 30, 2014, and December 31, 2013, no amount had been drawn on the $250 million revolving credit agreement of Phillips 66 Partners. Accordingly, as of June 30, 2014, an aggregate $5.4 billion of total capacity was available under these facilities.
	At June 30, 2014, we classified $800 million of long-term debt due within a year as long-term debt, based on our intent to refinance the obligation on a long-term basis and our ability to do so under our revolving credit facility.

Guarantees

Guarantees	6 Months Ended
	Jun. 30, 2014
Guarantees [Abstract]	'
Guarantees	'
	Guarantees
	At June 30, 2014, we were liable for certain contingent obligations under various contractual arrangements as described below. We recognize a liability, at inception, for the fair value of our obligation as a guarantor for newly issued or modified guarantees. Unless the carrying amount of the liability is noted below, we have not recognized a liability either because the guarantees were issued prior to December 31, 2002, or because the fair value of the obligation is immaterial. In addition, unless otherwise stated, we are not currently performing with any significance under the guarantee and expect future performance to be either immaterial or have only a remote chance of occurrence.
	Guarantees of Joint Venture Debt
	In April 2012, in connection with the Separation, we issued a guarantee for 100 percent of the 8.85% senior notes issued by MSLP in July 1999. At June 30, 2014, the maximum potential amount of future payments to third parties under the guarantee is estimated to be $203 million, which could become payable if MSLP fails to meet its obligations under the senior notes agreement. The senior notes mature in 2019.
	Other Guarantees
	We have residual value guarantees associated with leases with maximum future potential payments totaling $228 million. We have other guarantees with maximum future potential payment amounts totaling $311 million, which consist primarily of guarantees to fund the short-term cash liquidity deficits of certain joint ventures, guarantees of third parties related to prior asset dispositions, and guarantees of the lease payment obligations of a joint venture. These guarantees generally extend up to 10 years or life of the venture.
	Indemnifications
	Over the years, we have entered into various agreements to sell ownership interests in certain corporations, joint ventures and assets that gave rise to qualifying indemnifications. Agreements associated with these sales include indemnifications for taxes, litigation, environmental liabilities, permits and licenses, supply arrangements, and employee claims; and real estate indemnity against tenant defaults. The terms of these indemnifications vary greatly. The majority of these indemnifications are related to environmental issues, the term is generally indefinite, and the maximum amount of future payments is generally unlimited. The carrying amount recorded for indemnifications at June 30, 2014, was $243 million. We amortize the indemnification liability over the relevant time period, if one exists, based on the facts and circumstances surrounding each type of indemnity. In cases where the indemnification term is indefinite, we will reverse the liability when we have information the liability is essentially relieved or amortize the liability over an appropriate time period as the fair value of our indemnification exposure declines. Although it is reasonably possible future payments may exceed amounts recorded, due to the nature of the indemnifications, it is not possible to make a reasonable estimate of the maximum potential amount of future payments. Included in the recorded carrying amount were $113 million of environmental accruals for known contamination that were included in asset retirement obligations and accrued environmental costs at June 30, 2014. For additional information about environmental liabilities, see Note 13—Contingencies and Commitments.
	Indemnification and Release Agreement
	In 2012, we entered into the Indemnification and Release Agreement with ConocoPhillips. This agreement governs the treatment between ConocoPhillips and us of matters relating to indemnification, insurance, litigation responsibility and management, and litigation document sharing and cooperation arising in connection with the Separation. Generally, the agreement provides for cross-indemnities principally designed to place financial responsibility for the obligations and liabilities of our business with us and financial responsibility for the obligations and liabilities of ConocoPhillips’ business with ConocoPhillips. The agreement also establishes procedures for handling claims subject to indemnification and related matters.

Contingencies_and_Commitments

Contingencies and Commitments	6 Months Ended
	Jun. 30, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Contingencies and Commitments	'
	Contingencies and Commitments
	A number of lawsuits involving a variety of claims that arose in the ordinary course of business have been filed against us or are subject to indemnifications provided by us. We also may be required to remove or mitigate the effects on the environment of the placement, storage, disposal or release of certain chemical, mineral and petroleum substances at various active and inactive sites. We regularly assess the need for accounting recognition or disclosure of these contingencies. In the case of all known contingencies (other than those related to income taxes), we accrue a liability when the loss is probable and the amount is reasonably estimable. If a range of amounts can be reasonably estimated and no amount within the range is a better estimate than any other amount, then the minimum of the range is accrued. We do not reduce these liabilities for potential insurance or third-party recoveries. If applicable, we record receivables for probable insurance or other third-party recoveries. In the case of income-tax-related contingencies, we use a cumulative probability-weighted loss accrual in cases where sustaining a tax position is less than certain.
	Based on currently available information, we believe it is remote that future costs related to known contingent liability exposures will exceed current accruals by an amount that would have a material adverse impact on our consolidated financial statements. As we learn new facts concerning contingencies, we reassess our position both with respect to accrued liabilities and other potential exposures. Estimates particularly sensitive to future changes include contingent liabilities recorded for environmental remediation, tax and legal matters. Estimated future environmental remediation costs are subject to change due to such factors as the uncertain magnitude of cleanup costs, the unknown time and extent of such remedial actions that may be required, and the determination of our liability in proportion to that of other potentially responsible parties. Estimated future costs related to tax and legal matters are subject to change as events evolve and as additional information becomes available during the administrative and litigation processes.
	Environmental
	We are subject to international, federal, state and local environmental laws and regulations. When we prepare our consolidated financial statements, we record accruals for environmental liabilities based on management’s best estimates, using all information available at the time. We measure estimates and base liabilities on currently available facts, existing technology, and presently enacted laws and regulations, taking into account stakeholder and business considerations. When measuring environmental liabilities, we also consider our prior experience in remediation of contaminated sites, other companies’ cleanup experience, and data released by the U.S. Environmental Protection Agency (EPA) or other organizations. We consider unasserted claims in our determination of environmental liabilities, and we accrue them in the period they are both probable and reasonably estimable.
	Although liability of those potentially responsible for environmental remediation costs is generally joint and several for federal sites and frequently so for state sites, we are usually only one of many companies alleged to have liability at a particular site. Due to the joint and several liabilities, we could be responsible for all cleanup costs related to any site at which we have been designated as a potentially responsible party. We have been successful to date in sharing cleanup costs with other financially sound companies. Many of the sites at which we are potentially responsible are still under investigation by the EPA or the state agencies concerned. Prior to actual cleanup, those potentially responsible normally assess the site conditions, apportion responsibility and determine the appropriate remediation. In some instances, we may have no liability or may attain a settlement of liability. Where it appears that other potentially responsible parties may be financially unable to bear their proportional share, we consider this inability in estimating our potential liability, and we adjust our accruals accordingly. As a result of various acquisitions in the past, we assumed certain environmental obligations. Some of these environmental obligations are mitigated by indemnifications made by others for our benefit and some of the indemnifications are subject to dollar and time limits.
	We are currently participating in environmental assessments and cleanups at numerous federal Superfund and comparable state sites. After an assessment of environmental exposures for cleanup and other costs, we make accruals on an undiscounted basis (except those pertaining to sites acquired in a purchase business combination, which we record on a discounted basis) for planned investigation and remediation activities for sites where it is probable future costs will be incurred and these costs can be reasonably estimated. At June 30, 2014, our consolidated balance sheet included a total environmental accrual of $504 million, compared with $492 million at December 31, 2013. We expect to incur a substantial amount of these expenditures within the next 30 years. We have not reduced these accruals for possible insurance recoveries. In the future, we may be involved in additional environmental assessments, cleanups and proceedings.
	Legal Proceedings
	Our legal organization applies its knowledge, experience and professional judgment to the specific characteristics of our cases, employing a litigation management process to manage and monitor the legal proceedings against us. Our process facilitates the early evaluation and quantification of potential exposures in individual cases. This process also enables us to track those cases that have been scheduled for trial and/or mediation. Based on professional judgment and experience in using these litigation management tools and available information about current developments in all our cases, our legal organization regularly assesses the adequacy of current accruals and determines if adjustment of existing accruals, or establishment of new accruals, is required.
	Other Contingencies
	We have contingent liabilities resulting from throughput agreements with pipeline and processing companies not associated with financing arrangements. Under these agreements, we may be required to provide any such company with additional funds through advances and penalties for fees related to throughput capacity not utilized.
	At June 30, 2014, we had performance obligations secured by letters of credit of $1,148 million ($51 million of which were issued under the provisions of our revolving credit facility, and the remainder were issued as direct bank letters of credit) related to various purchase and other commitments incident to the ordinary conduct of business.

Derivatives_and_Financial_Inst

Derivatives and Financial Instruments	6 Months Ended
	Jun. 30, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Derivatives and Financial Instruments	'
	Derivatives and Financial Instruments
	Derivative Instruments
	We use financial and commodity-based derivative contracts to manage exposures to fluctuations in foreign currency exchange rates and commodity prices or to capture market opportunities. Since we are not currently using cash-flow hedge accounting, all gains and losses, realized or unrealized, from commodity derivative contracts have been recognized in the consolidated statement of income. Gains and losses from derivative contracts held for trading not directly related to our physical business, whether realized or unrealized, have been reported net in “Other income” on our consolidated statement of income. Cash flows from all our derivative activity for the periods presented appear in the operating section of the consolidated statement of cash flows.
	Purchase and sales contracts with fixed minimum notional volumes for commodities that are readily convertible to cash (e.g., crude oil and gasoline) are recorded on the balance sheet as derivatives unless the contracts are eligible for, and we elect, the normal purchases and normal sales exception (i.e., contracts to purchase or sell quantities we expect to use or sell over a reasonable period in the normal course of business). We generally apply this normal purchases and normal sales exception to eligible crude oil, refined product, natural gas and power commodity purchase and sales contracts; however, we may elect not to apply this exception (e.g., when another derivative instrument will be used to mitigate the risk of the purchase or sales contract but hedge accounting will not be applied, in which case both the purchase or sales contract and the derivative contract mitigating the resulting risk will be recorded on the balance sheet at fair value).
	Our derivative instruments are held at fair value on our consolidated balance sheet. For further information on the fair value of derivatives, see Note 15—Fair Value Measurements.
	Commodity Derivative Contracts—We operate in the worldwide crude oil, refined products, natural gas liquids (NGL), natural gas and electric power markets and are exposed to fluctuations in the prices for these commodities. These fluctuations can affect our revenues, as well as the cost of operating, investing and financing activities. Generally, our policy is to remain exposed to the market prices of commodities; however, we use futures, forwards, swaps and options in various markets to balance physical systems, meet customer needs, manage price exposures on specific transactions, and do a limited, immaterial amount of trading not directly related to our physical business. We also use the market knowledge gained from these activities to capture market opportunities such as moving physical commodities to more profitable locations, storing commodities to capture seasonal or time premiums, and blending commodities to capture quality upgrades. Derivatives may be used to optimize these activities, which may move our risk profile away from market average prices.
	The following table indicates the balance sheet line items that include the fair values of commodity derivative assets and liabilities presented net (i.e., commodity derivative assets and liabilities with the same counterparty are netted where the right of setoff exists); however, the balances in the following table are presented gross. For information on the impact of counterparty netting and collateral netting, see Note 15—Fair Value Measurements.
		Millions of Dollars
		June 30				December 31
		2014				2013
	Assets
	Accounts and notes receivable	$	—			2
	Prepaid expenses and other current assets	781				592
	Other assets	2				2
	Liabilities
	Other accruals	831				633
	Other liabilities and deferred credits	1				1
	Hedge accounting has not been used for any item in the table.
	The gains (losses) from commodity derivatives incurred, and the line items where they appear on our consolidated statement of income, were:
		Millions of Dollars
		Three Months Ended					Six Months Ended
		30-Jun					30-Jun
		2014				2013	2014		2013
	Sales and other operating revenues	$	(28	)		124	29		118
	Equity in earnings of affiliates	(2		)		2	(2	)	(1	)
	Other income	1				24	15		27
	Purchased crude oil and products	(45		)		74	(43	)	163
	Hedge accounting has not been used for any item in the table.
	The following table summarizes our material net exposures resulting from outstanding commodity derivative contracts. These financial and physical derivative contracts are primarily used to manage price exposure on our underlying
	operations. The underlying exposures may be from non-derivative positions such as inventory volumes. Financial derivative contracts may also offset physical derivative contracts, such as forward sales contracts. As of June 30, 2014, and December 31, 2013, the percentage of our derivative contract volume expiring within the next 12 months was over 99 percent for both periods.
		Open Position
		Long/(Short)
		June 30			December 31
		2014			2013
	Commodity
	Crude oil, refined products and NGL (millions of barrels)	(26	)		(9	)
	Credit Risk
	Financial instruments potentially exposed to concentrations of credit risk consist primarily of over-the-counter (OTC) derivative contracts and trade receivables.
	The credit risk from our OTC derivative contracts, such as forwards and swaps, derives from the counterparty to the transaction. Individual counterparty exposure is managed within predetermined credit limits and includes the use of cash-call margins when appropriate, thereby reducing the risk of significant nonperformance. We also use futures, swaps and option contracts that have a negligible credit risk because these trades are cleared with an exchange clearinghouse and subject to mandatory margin requirements until settled; however, we are exposed to the credit risk of those exchange brokers for receivables arising from daily margin cash calls, as well as for cash deposited to meet initial margin requirements.
	Our trade receivables result primarily from the sale of products from, or related to, our refinery operations and reflect a broad national and international customer base, which limits our exposure to concentrations of credit risk. The majority of these receivables have payment terms of 30 days or less. We continually monitor this exposure and the creditworthiness of the counterparties and recognize bad debt expense based on historical write-off experience or specific counterparty collectability. Generally, we do not require collateral to limit the exposure to loss; however, we will sometimes use letters of credit, prepayments, and master netting arrangements to mitigate credit risk with counterparties that both buy from and sell to us, as these agreements permit the amounts owed by us or owed to others to be offset against amounts due us.
	Certain of our derivative instruments contain provisions that require us to post collateral if the derivative exposure exceeds a threshold amount. We have contracts with fixed threshold amounts and other contracts with variable threshold amounts that are contingent on our credit rating. The variable threshold amounts typically decline for lower credit ratings, while both the variable and fixed threshold amounts typically revert to zero if our credit ratings fall below investment grade. Cash is the primary collateral in all contracts; however, many contracts also permit us to post letters of credit as collateral.
	The aggregate fair values of all derivative instruments with such credit-risk-related contingent features that were in a liability position were not material at June 30, 2014, or December 31, 2013.

Fair_Value_Measurements

Fair Value Measurements	6 Months Ended
	Jun. 30, 2014
Fair Value Disclosures [Abstract]	'
Fair Value Measurements	'
	Fair Value Measurements
	Fair Values of Financial Instruments
	We used the following methods and assumptions to estimate the fair value of financial instruments:
	•	Cash and cash equivalents: The carrying amount reported on the consolidated balance sheet approximates fair value.
	•	Accounts and notes receivable: The carrying amount reported on the consolidated balance sheet approximates fair value.
	•	Debt: The carrying amount of our floating-rate debt approximates fair value. The fair value of our fixed-rate debt is estimated based on quoted market prices.
	•	Commodity swaps: Fair value is estimated based on forward market prices and approximates the exit price at period end. When forward market prices are not available, fair value is estimated using the forward prices of a similar commodity with adjustments for differences in quality or location.
	•	Futures: Fair values are based on quoted market prices obtained from the New York Mercantile Exchange, the InterContinental Exchange Futures or other traded exchanges.
	•	Forward-exchange contracts: Fair values are estimated by comparing the contract rate to the forward rate in effect at the end of the respective reporting periods and approximating the exit price at those dates.
	We carry certain assets and liabilities at fair value, which we measure at the reporting date using an exit price (i.e., the price that would be received to sell an asset or paid to transfer a liability), and disclose the quality of these fair values based on the valuation inputs used in these measurements under the following hierarchy:
	•	Level 1: Fair value measured with unadjusted quoted prices from an active market for identical assets or liabilities.
	•	Level 2: Fair value measured with: 1) adjusted quoted prices from an active market for similar assets; or 2) other valuation inputs that are directly or indirectly observable.
	•	Level 3: Fair value measured with unobservable inputs that are significant to the measurement.
	We classify the fair value of an asset or liability based on the lowest level of input significant to its measurement; however, the fair value of an asset or liability initially reported as Level 3 will be subsequently reported as Level 2 if the unobservable inputs become inconsequential to its measurement or corroborating market data becomes available. Conversely, an asset or liability initially reported as Level 2 will be subsequently reported as Level 3 if corroborating market data becomes unavailable. We made no material transfers in or out of Level 1 during the six-month periods ended June 30, 2014 and 2013.
	Recurring Fair Value Measurements
	Financial assets and liabilities recorded at fair value on a recurring basis consist primarily of investments to support nonqualified deferred compensation plans and derivative instruments. The deferred compensation investments are measured at fair value using unadjusted prices available from national securities exchanges; therefore, these assets are categorized as Level 1 in the fair value hierarchy. We value our exchange-traded commodity derivatives using closing prices provided by the exchange as of the balance sheet date, and these are also classified as Level 1 in the fair value hierarchy. When exchange-cleared contracts lack sufficient liquidity or are valued using either adjusted exchange-provided prices or non-exchange quotes, we classify those contracts as Level 2. OTC financial swaps and physical commodity forward purchase and sales contracts are generally valued using quotations provided by brokers and price index developers such as Platts and Oil Price Information Service. We corroborate these quotes with market data and classify the resulting fair values as Level 2. In certain less liquid markets or for longer-term contracts, forward prices are not as readily available. In these circumstances, OTC swaps and physical commodity purchase and sales contracts are valued using internally developed methodologies that consider historical relationships among various commodities that result in management’s best estimate of fair value. We classify these contracts as Level 3. Financial OTC and physical commodity options are valued using industry-standard models that consider various assumptions, including quoted forward prices for commodities, time value, volatility factors, and contractual prices for the underlying instruments, as well as other relevant economic measures. The degree to which these inputs are observable in the forward markets determines whether the options are classified as Level 2 or 3. We use a mid-market pricing convention (the mid-point between bid and ask prices). When appropriate, valuations are adjusted to reflect credit considerations, generally based on available market evidence.
	The following tables display the fair value hierarchy for our material financial assets and liabilities either accounted for or disclosed at fair value on a recurring basis. These values are determined by treating each contract as the fundamental unit of account; therefore, derivative assets and liabilities with the same counterparty are shown gross (i.e., without the effect of netting where the legal right of setoff exists) in the hierarchy sections of these tables. These tables also show that our Level 3 activity was not material.
	We have master netting arrangements for all of our exchange-cleared derivative instruments, the majority of our OTC derivative instruments, and certain physical commodity forward contracts (primarily pipeline crude oil deliveries). The following tables show these contracts on a net basis in the column “Effect of Counterparty Netting.” We have no contracts that are subject to master netting arrangements that are reflected gross on the consolidated balance sheet.
	The carrying values and fair values by hierarchy of our material financial instruments, either carried or disclosed at fair value, and derivative assets and liabilities, including any effects of master netting agreements or collateral, were:
		Millions of Dollars
		30-Jun-14
		Fair Value Hierarchy				Total Fair Value of Gross Assets & Liabilities	Effect of Counterparty Netting		Effect of Collateral Netting		Difference in Carrying Value and Fair Value		Net Carrying Value Presented on the Balance Sheet	Cash Collateral Received or Paid, Not Offset on Balance Sheet
		Level 1		Level 2	Level 3
	Commodity Derivative Assets
	Exchange-cleared instruments	$	563	152	—	715	(703	)	—		—		12	—
	OTC instruments	—		38	—	38	(13	)	—		—		25	—
	Physical forward contracts*	—		24	6	30	(1	)	—		—		29	—
	Rabbi trust assets	76		—	—	76	N/A		N/A		—		76	N/A
		$	639	214	6	859	(717	)	—		—		142
	Commodity Derivative Liabilities
	Exchange-cleared instruments	$	631	161	—	792	(703	)	(89	)	—		—	—
	OTC instruments	—		28	—	28	(13	)	—		—		15	—
	Physical forward contracts*	—		11	1	12	(1	)	—		—		11	—
	Floating-rate debt	52		—	—	52	N/A		N/A		—		52	N/A
	Fixed-rate debt, excluding capital leases**	—		6,482	—	6,482	N/A		N/A		(523	)	5,959	N/A
		$	683	6,682	1	7,366	(717	)	(89	)	(523	)	6,037
	* Physical forward contracts may have a larger value on the balance sheet than disclosed in the fair value hierarchy when the remaining contract term at the reporting date is greater than 12 months and the short-term portion is an asset while the long-term portion is a liability, or vice versa.
	** We carry fixed-rate debt on the balance sheet at amortized cost.
		Millions of Dollars
		31-Dec-13
		Fair Value Hierarchy				Total Fair Value of Gross Assets & Liabilities	Effect of Counterparty Netting		Effect of Collateral Netting		Difference in Carrying Value and Fair Value		Net Carrying Value Presented on the Balance Sheet	Cash Collateral Received or Paid, Not Offset on Balance Sheet
		Level 1		Level 2	Level 3
	Commodity Derivative Assets
	Exchange-cleared instruments	$	227	332	—	559	(538	)	—		—		21	—
	OTC instruments	—		10	—	10	(8	)	—		—		2	—
	Physical forward contracts*	—		25	2	27	—		—		—		27	—
	Rabbi trust assets	64		—	—	64	N/A		N/A		—		64	N/A
		$	291	367	2	660	(546	)	—		—		114
	Commodity Derivative Liabilities
	Exchange-cleared instruments	$	253	326	—	579	(538	)	(41	)	—		—	—
	OTC instruments	—		11	—	11	(8	)	—		—		3	—
	Physical forward contracts*	—		43	1	44	—		—		—		44	—
	Floating-rate debt	50		—	—	50	N/A		N/A		—		50	N/A
	Fixed-rate debt, excluding capital leases**	—		6,168	—	6,168	N/A		N/A		(262	)	5,906	N/A
		$	303	6,548	1	6,852	(546	)	(41	)	(262	)	6,003
	* Physical forward contracts may have a larger value on the balance sheet than disclosed in the fair value hierarchy when the remaining contract term at the reporting date is greater than 12 months and the short-term portion is an asset while the long-term portion is a liability, or vice versa.
	** We carry fixed-rate debt on the balance sheet at amortized cost.
	The values presented in the preceding tables appear on our balance sheet as follows: for commodity derivative assets and liabilities, see the first table in Note 14—Derivatives and Financial Instruments; rabbi trust assets appear in the “Investments and long-term receivables” line; and floating-rate and fixed-rate debt appear in the “Short-term debt” and “Long-term debt” lines.
	Nonrecurring Fair Value Remeasurements
	During the six-month period ended June 30, 2014, there were no significant nonrecurring fair value remeasurements of assets subsequent to their initial recognition.
	The following table shows the values of assets, by major category, measured at fair value on a nonrecurring basis in periods subsequent to their initial recognition during the six-month period ended June 30, 2013:
		Millions of Dollars
				Fair Value
Measurements Using
	Fair Value*		Level 1	Level 2	Level 3		Before-
			Inputs	Inputs	Inputs		Tax Loss
30-Jun-13
Net properties, plants and equipment (held for use)	$	22	22	—	—		27
* Represents the fair value at the time of the impairment.
During the six-month period ended June 30, 2013, net PP&E held for use related to the composite graphite business in our M&S segment, with a carrying amount of $18 million, was written down to its fair value, resulting in a before-tax loss of $18 million. The fair value was based on an internal assessment of expected discounted future cash flows. During this same period, corporate net PP&E held for use, with a carrying amount of $31 million, was written down to its fair value of $22 million, resulting in a before-tax loss of $9 million. The fair value was primarily determined by a third-party valuation.

Employee_Benefit_Plans

Employee Benefit Plans	6 Months Ended
	Jun. 30, 2014
Compensation and Retirement Disclosure [Abstract]	'
Employee Benefit Plans	'
	Employee Benefit Plans
	Pension and Postretirement Plans
	The components of net periodic benefit cost for the three and six months ended June 30, 2014 and 2013, were as follows:
		Millions of Dollars
		Pension Benefits									Other Benefits
		2014					2013				2014		2013
		U.S.			Int’l.		U.S.		Int’l.
	Components of Net Periodic Benefit Cost
	Three Months Ended June 30
	Service cost	$	31		10		31		9		2		2
	Interest cost	27			9		23		8		2		1
	Expected return on plan assets	(35		)	(10	)	(30	)	(8	)	—		—
	Amortization of prior service cost (credit)	—			—		1		(1	)	(1	)	(1	)
	Recognized net actuarial loss	10			3		21		3		—		—
	Total net periodic benefit cost	$	33		12		46		11		3		2
	Six Months Ended June 30
	Service cost	$	61		20		62		18		4		4
	Interest cost	54			18		46		16		4		3
	Expected return on plan assets	(71		)	(19	)	(60	)	(15	)	—		—
	Amortization of prior service cost (credit)	1			(1	)	1		(1	)	(1	)	(1	)
	Recognized net actuarial loss (gain)	20			6		42		8		(1	)	—
	Total net periodic benefit cost	$	65		24		91		26		6		6
	During the first half of 2014, we contributed $163 million to our U.S. plans and $31 million to our international plans. We currently expect to make additional contributions of approximately $50 million in 2014, primarily to our international plans.

Accumulated_Other_Comprehensiv

Accumulated Other Comprehensive Income (Loss)	6 Months Ended
	Jun. 30, 2014
Equity [Abstract]	'
Accumulated Other Comprehensive Income (Loss)	'
	Accumulated Other Comprehensive Income (Loss)
	The following table depicts changes in accumulated other comprehensive income (loss) by component, as well as detail on reclassifications out of accumulated other comprehensive income (loss):
		Millions of Dollars
		Defined Benefit Plans			Foreign Currency Translation		Hedging		Accumulated Other Comprehensive Income (Loss)
	31-Dec-12	$	(778	)	466		(2	)	(314	)
	Other comprehensive loss before reclassifications	(5		)	(281	)	1		(285	)
	Amounts reclassified from accumulated other comprehensive income (loss)*
	Amortization of defined benefit plan items**
	Actuarial losses	33			—		—		33
	Net current period other comprehensive income (loss)	28			(281	)	1		(252	)
	30-Jun-13	$	(750	)	185		(1	)	(566	)
	31-Dec-13	$	(404	)	443		(2	)	37
	Other comprehensive income before reclassifications	4			128		—		132
	Amounts reclassified from accumulated other comprehensive income (loss)*
	Amortization of defined benefit plan items**
	Actuarial losses	17			—		—		17
	Net current period other comprehensive income	21			128		—		149
	30-Jun-14	$	(383	)	571		(2	)	186
	* There were no significant reclassifications related to foreign currency translation or hedging.
	** These accumulated other comprehensive income (loss) components are included in the computation of net periodic benefit cost (see Note 16—Employee Benefit Plans, for additional information).

Cash_Flow_Information

Cash Flow Information	6 Months Ended
	Jun. 30, 2014
Supplemental Cash Flow Information [Abstract]	'
Cash Flow Information	'
	Cash Flow Information
		Millions of Dollars
		Six Months Ended
		30-Jun
		2014		2013
	Cash Payments
	Interest	$	123	132
	Income taxes	1,093		896
	Noncash Investing and Financing Activities
	As discussed more fully in Note 5—Assets Held for Sale or Sold, on February 25, 2014, we completed the exchange of our flow improvers business for shares of Phillips 66 common stock owned by the other party to the transaction. The noncash portion of the net assets surrendered by us in the exchange was $204 million, and we received approximately 17.4 million shares of our common stock, with a fair value at the time of the exchange of $1.35 billion.

Related_Party_Transactions

Related Party Transactions	6 Months Ended
	Jun. 30, 2014
Related Party Transactions [Abstract]	'
Related Party Transactions	'
	Related Party Transactions
	Significant transactions with related parties were:
		Millions of Dollars
		Three Months Ended			Six Months Ended
		30-Jun			30-Jun
		2014		2013	2014	2013
	Operating revenues and other income (a)	$	1,586	2,050	3,653	3,799
	Purchases (b)	4,535		4,474	8,526	8,761
	Operating expenses and selling, general and administrative expenses (c)	41		28	76	52
	Interest expense (d)	2		2	4	4
	(a)	We sold crude oil to the Malaysian Refining Company Sdn. Bdh. (MRC). NGL and other petrochemical feedstocks, along with solvents, were sold to CPChem, and gas oil and hydrogen feedstocks were sold to Excel. Certain feedstocks and intermediate products were sold to WRB. We also acted as agent for WRB in supplying other crude oil and feedstocks, wherein the transactional amounts did not impact operating revenues. In addition, we charged several of our affiliates, including CPChem and MSLP, for the use of common facilities, such as steam generators, waste and water treaters, and warehouse facilities.
	(b)	We purchased refined products from WRB. We also acted as agent for WRB in distributing asphalt and solvents, wherein the transactional amounts did not impact purchases. We purchased natural gas and NGL from DCP Midstream, LLC (DCP Midstream) and CPChem for use in our refinery processes and other feedstocks from various affiliates. We purchased refined products from MRC. We also paid fees to various pipeline equity companies for transporting finished refined products. In addition, we paid a price upgrade to MSLP for heavy crude processing. We purchased base oils and fuel products from Excel for use in our refining and specialty businesses.
	(c)	We paid utility, commission and processing fees to various affiliates.
	(d)	We incurred interest expense on a note payable to MSLP.

Segment_Disclosures_and_Relate

Segment Disclosures and Related Information	6 Months Ended
	Jun. 30, 2014
Segment Reporting [Abstract]	'
Segment Disclosures and Related Information	'
	Segment Disclosures and Related Information
	Our operating segments are:
	1)	Midstream—Gathers, processes, transports and markets natural gas; and transports, fractionates and markets NGL in the United States. In addition, this segment transports crude oil and other feedstocks to our refineries and other locations, and delivers refined and specialty products to market. The Midstream segment includes, among other businesses, our 50 percent equity investment in DCP Midstream and our investment in Phillips 66 Partners LP.
	2)	Chemicals—Manufactures and markets petrochemicals and plastics on a worldwide basis. The Chemicals segment consists of our 50 percent equity investment in CPChem.
	3)	Refining—Buys, sells and refines crude oil and other feedstocks at 15 refineries, mainly in the United States, Europe and Asia.
	4)	Marketing and Specialties—Purchases for resale and markets refined products, mainly in the United States and Europe. In addition, this segment includes the manufacturing and marketing of specialty products (such as base oils and lubricants), as well as power generation operations.
	Corporate and Other includes general corporate overhead, interest expense, our investments in new technologies and various other corporate activities. Corporate assets include all cash and cash equivalents.
	We evaluate performance and allocate resources based on net income attributable to Phillips 66. Intersegment sales are at prices that approximate market.
	Effective January 1, 2014, we changed the organizational structure of the internal financial information reviewed by our chief executive officer, and determined this resulted in a change in the composition of our operating segments. The primary effects of this reporting reorganization were as follows:
	•	We moved two of our equity investments, Excel and Jupiter Sulphur, LLC, as well as the commission revenues related to needle and anode coke, polypropylene and solvents, from the Refining segment to the M&S segment.
	•	We moved several refining logistics projects from the Refining segment to the Midstream segment.
	The new segment alignment is presented for the three- and six-month periods ended June 30, 2014, with the prior periods recast for comparability.
	Analysis of Results by Operating Segment
		Millions of Dollars
		Three Months Ended					Six Months Ended
		30-Jun					30-Jun
		2014			2013		2014		2013
	Sales and Other Operating Revenues
	Midstream
	Total sales	$	1,155		1,481		3,310		3,109
	Intersegment eliminations	(274		)	(210	)	(566	)	(442	)
	Total Midstream	881			1,271		2,744		2,667
	Chemicals	2			2		4		4
	Refining
	Total sales	33,628			30,994		62,843		60,756
	Intersegment eliminations	(18,793		)	(18,510	)	(36,351	)	(36,367	)
	Total Refining	14,835			12,484		26,492		24,389
	Marketing and Specialties
	Total sales	30,489			29,729		57,535		57,909
	Intersegment eliminations	(666		)	(305	)	(958	)	(583	)
	Total Marketing and Specialties	29,823			29,424		56,577		57,326
	Corporate and Other	8			9		15		15
	Consolidated sales and other operating revenues	$	45,549		43,190		85,832		84,401
	Net Income (Loss) Attributable to Phillips 66
	Midstream	$	108		90		296		201
	Chemicals	324			181		640		463
	Refining	390			455		696		1,359
	Marketing and Specialties	162			344		299		534
	Corporate and Other	(121		)	(126	)	(202	)	(221	)
	Discontinued operations	—			14		706		29
	Consolidated net income attributable to Phillips 66	$	863		958		2,435		2,365
		Millions of Dollars
		June 30				December 31
		2014				2013
	Total Assets
	Midstream	$	5,803			5,485
	Chemicals	4,930				4,377
	Refining	26,946				26,046
	Marketing and Specialties	7,380				7,331
	Corporate and Other	5,763				6,348
	Discontinued operations	—				211
	Consolidated total assets	$	50,822			49,798

Income_Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2014
Income Tax Disclosure [Abstract]	'
Income Taxes	'
	Income Taxes
	Our effective tax rate for the second quarter and the first six months of 2014 was 36 percent and 34 percent, respectively, compared with 35 percent and 33 percent for the corresponding periods of 2013. The effective tax rate varies from the federal statutory tax rate of 35 percent primarily as a result of state tax expense, offset by the manufacturing deduction and foreign operations.

Phillips_66_Partners_LP

Phillips 66 Partners LP	6 Months Ended
	Jun. 30, 2014
Limited Liability Company or Limited Partnership, Business Organization and Operations [Abstract]	'
Phillips 66 Partners LP	'
	Phillips 66 Partners LP
	In 2013, we formed Phillips 66 Partners, a master limited partnership, to own, operate, develop and acquire primarily fee-based crude oil, refined petroleum product and NGL pipelines and terminals, as well as other transportation and midstream assets.
	On March 1, 2014, we contributed to Phillips 66 Partners certain transportation, terminaling and storage assets for total consideration of $700 million, which consisted of $400 million in cash, the receipt of 3,530,595 common units and 72,053 general partner units of Phillips 66 Partners and a 5-year, $160 million note receivable. These assets consisted of our Gold Line products system and the Medford spheres, two newly constructed refinery-grade propylene storage spheres. Since we consolidate Phillips 66 Partners for financial reporting purposes, this transaction was eliminated upon consolidation and did not impact our financial position or cash flow.
	At June 30, 2014, we owned a 73 percent limited partner interest and a 2 percent general partner interest in Phillips 66 Partners, while the public owned a 25 percent limited partner interest. We consolidate Phillips 66 Partners because we control the partnership through our general partner interest (see Note 2—Variable Interest Entities (VIEs) for additional information). The public’s ownership interest in Phillips 66 Partners was $412 million at June 30, 2014, and is reflected as a noncontrolling interest in our financial statements. The most significant asset of Phillips 66 Partners that can only be used to settle its obligations was net PP&E of $275 million at June 30, 2014.

New_Accounting_Standards

New Accounting Standards	6 Months Ended
	Jun. 30, 2014
New Accounting Standards [Abstract]	'
New Accounting Standards	'
	New Accounting Standards
	In April 2014, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2014-08, “Presentation of Financial Statements (Topic 205) and Property, Plant, and Equipment (Topic 360): Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity.” This ASU amends the definition of discontinued operations so that only disposals of components of an entity representing major strategic shifts that have a major effect on an entity’s operations and financial results will qualify for discontinued operations reporting. The ASU also requires additional disclosures about discontinued operations and individually material disposals that do not meet the definition of a discontinued operation. ASU 2014-08 is effective January 1, 2015, and earlier application is permitted, but only for disposals not previously reported in the financial statements. We adopted this ASU effective July 1, 2014, and the adoption of this ASU did not have an effect on our consolidated financial statements.
	In May 2014, the FASB issued ASU No. 2014-09, “Revenue from Contracts with Customers (Topic 606).” The new standard converged guidance on recognizing revenues in contracts with customers under accounting principles generally accepted in the United States and International Financial Reporting Standards. This ASU is intended to improve comparability of revenue recognition practices across entities, industries, jurisdictions and capital markets. ASU 2014-09 is effective for annual and quarterly reporting periods of public entities beginning after December 15, 2016. Early application for public entities is not permitted. We are currently evaluating the provisions of ASU 2014-09 and assessing the impact, if any, it may have on our financial position and results of operations.

Condensed_Consolidating_Financ

Condensed Consolidating Financial Information	6 Months Ended
	Jun. 30, 2014
Condensed Financial Information of Parent Company Only Disclosure [Abstract]	'
Condensed Consolidating Financial Information	'
	Our $5.8 billion of Senior Notes were issued by Phillips 66, and are guaranteed by Phillips 66 Company, a 100-percent-owned subsidiary. Phillips 66 Company has fully and unconditionally guaranteed the payment obligations of Phillips 66 with respect to these debt securities. The following condensed consolidating financial information presents the results of operations, financial position and cash flows for:
	•	Phillips 66 and Phillips 66 Company (in each case, reflecting investments in subsidiaries utilizing the equity method of accounting).
	•	All other nonguarantor subsidiaries.
	•	The consolidating adjustments necessary to present Phillips 66’s results on a consolidated basis.
	This condensed consolidating financial information should be read in conjunction with the accompanying consolidated financial statements and notes.
	Effective with fiscal year 2013, we revised the cash flow presentation of inter-column transactions associated with our centralized cash management program and intercompany loans, from operating cash flows to investing cash flows, in a new line item labeled “Intercompany lending activities.” Additionally, interest and debt expense in the statement of income was revised to eliminate intra-column lending transactions. All periods have been revised to conform to this presentation.
		Millions of Dollars
		Three Months Ended June 30, 2014
	Statement of Income	Phillips 66			Phillips 66 Company		All Other Subsidiaries		Consolidating Adjustments		Total Consolidated
	Revenues and Other Income
	Sales and other operating revenues	$	—		30,145		15,404		—		45,549
	Equity in earnings of affiliates	908			604		130		(878	)	764
	Net gain on dispositions	—			—		9		—		9
	Other income (loss)	—			18		(1	)	—		17
	Intercompany revenues	—			1,057		5,700		(6,757	)	—
	Total Revenues and Other Income	908			31,824		21,242		(7,635	)	46,339
	Costs and Expenses
	Purchased crude oil and products	—			27,670		18,358		(6,712	)	39,316
	Operating expenses	—			862		226		(11	)	1,077
	Selling, general and administrative expenses	2			316		117		(23	)	412
	Depreciation and amortization	—			183		56		—		239
	Impairments	—			1		2		—		3
	Taxes other than income taxes	—			1,416		2,416		—		3,832
	Accretion on discounted liabilities	—			4		2		—		6
	Interest and debt expense	67			2		8		(11	)	66
	Foreign currency transaction losses	—			—		29		—		29
	Total Costs and Expenses	69			30,454		21,214		(6,757	)	44,980
	Income from continuing operations before income taxes	839			1,370		28		(878	)	1,359
	Provision (benefit) for income taxes	(24		)	462		49		—		487
	Income (Loss) From Continuing Operations	863			908		(21	)	(878	)	872
	Income from discontinued operations	—			—		—		—		—
	Net income (loss)	863			908		(21	)	(878	)	872
	Less: net income attributable to noncontrolling interests	—			—		9		—		9
	Net Income (Loss) Attributable to Phillips 66	$	863		908		(30	)	(878	)	863
	Comprehensive Income	$	972		1,017		81		(1,089	)	981
		Millions of Dollars
		Three Months Ended June 30, 2013
	Statement of Income	Phillips 66			Phillips 66 Company		All Other Subsidiaries		Consolidating Adjustments		Total Consolidated
	Revenues and Other Income
	Sales and other operating revenues	$	—		29,335		13,855		—		43,190
	Equity in earnings of affiliates	1,003			637		78		(1,100	)	618
	Net gain on dispositions	—			40		1		—		41
	Other income (loss)	(2		)	34		17		—		49
	Intercompany revenues	—			412		5,530		(5,942	)	—
	Total Revenues and Other Income	1,001			30,458		19,481		(7,042	)	43,898
	Costs and Expenses
	Purchased crude oil and products	—			26,420		16,747		(5,910	)	37,257
	Operating expenses	—			821		218		(7	)	1,032
	Selling, general and administrative expenses	1			264		126		(23	)	368
	Depreciation and amortization	—			177		52		—		229
	Impairments	—			—		1		—		1
	Taxes other than income taxes	—			1,295		2,206		—		3,501
	Accretion on discounted liabilities	—			5		1		—		6
	Interest and debt expense	67			3		1		(2	)	69
	Foreign currency transaction gains	—			(1	)	(17	)	—		(18	)
	Total Costs and Expenses	68			28,984		19,335		(5,942	)	42,445
	Income from continuing operations before income taxes	933			1,474		146		(1,100	)	1,453
	Provision (benefit) for income taxes	(25		)	471		61		—		507
	Income From Continuing Operations	958			1,003		85		(1,100	)	946
	Income from discontinued operations*	—			—		14		—		14
	Net income	958			1,003		99		(1,100	)	960
	Less: net income attributable to noncontrolling interests	—			—		2		—		2
	Net Income Attributable to Phillips 66	$	958		1,003		97		(1,100	)	958
Comprehensive Income	$	1,013		1,059		141		(1,197	)	1,016
* Net of provision for income taxes on discontinued operations:	$	—		—		7		—		7
	Millions of Dollars
	Six Months Ended June 30, 2014
Statement of Income	Phillips 66			Phillips 66 Company		All Other Subsidiaries		Consolidating Adjustments		Total Consolidated
Revenues and Other Income
Sales and other operating revenues	$	—		57,384		28,448		—		85,832
Equity in earnings of affiliates	1,830			1,450		308		(2,046	)	1,542
Net gain on dispositions	—			—		16		—		16
Other income	—			40		8		—		48
Intercompany revenues	—			1,335		10,401		(11,736	)	—
Total Revenues and Other Income	1,830			60,209		39,181		(13,782	)	87,438
Costs and Expenses
Purchased crude oil and products	—			52,054		33,296		(11,653	)	73,697
Operating expenses	2			1,765		417		(17	)	2,167
Selling, general and administrative expenses	5			602		255		(48	)	814
Depreciation and amortization	—			363		110		—		473
Impairments	—			2		2		—		4
Taxes other than income taxes	—			2,717		4,753		—		7,470
Accretion on discounted liabilities	—			9		3		—		12
Interest and debt expense	133			6		13		(18	)	134
Foreign currency transaction losses	—			—		10		—		10
Total Costs and Expenses	140			57,518		38,859		(11,736	)	84,781
Income from continuing operations before income taxes	1,690			2,691		322		(2,046	)	2,657
Provision (benefit) for income taxes	(49		)	861		101		—		913
Income from Continuing Operations	1,739			1,830		221		(2,046	)	1,744
Income from discontinued operations*	696			—		10		—		706
Net income	2,435			1,830		231		(2,046	)	2,450
Less: net income attributable to noncontrolling interests	—			—		15		—		15
Net Income Attributable to Phillips 66	$	2,435		1,830		216		(2,046	)	2,435
Comprehensive Income	$	2,584		1,979		365		(2,329	)	2,599
* Net of provision for income taxes on discontinued operations:	$	—		—		5		—		5
	Millions of Dollars
	Six Months Ended June 30, 2013
Statement of Income	Phillips 66			Phillips 66 Company		All Other Subsidiaries		Consolidating Adjustments		Total Consolidated
Revenues and Other Income
Sales and other operating revenues	$	—		56,972		27,429		—		84,401
Equity in earnings of affiliates	2,455			1,776		236		(2,810	)	1,657
Net gain on dispositions	—			41		1		—		42
Other income (loss)	(2		)	49		25		—		72
Intercompany revenues	—			902		10,363		(11,265	)	—
Total Revenues and Other Income	2,453			59,740		38,054		(14,075	)	86,172
Costs and Expenses
Purchased crude oil and products	—			51,172		32,527		(11,199	)	72,500
Operating expenses	—			1,620		404		(14	)	2,010
Selling, general and administrative expenses	3			470		268		(46	)	695
Depreciation and amortization	—			360		111		—		471
Impairments	—			(3	)	28		—		25
Taxes other than income taxes	—			2,504		4,321		—		6,825
Accretion on discounted liabilities	—			10		2		—		12
Interest and debt expense	134			6		5		(6	)	139
Foreign currency transaction gains	—			—		(16	)	—		(16	)
Total Costs and Expenses	137			56,139		37,650		(11,265	)	82,661
Income from continuing operations before income taxes	2,316			3,601		404		(2,810	)	3,511
Provision (benefit) for income taxes	(49		)	1,146		73		—		1,170
Income from Continuing Operations	2,365			2,455		331		(2,810	)	2,341
Income from discontinued operations*	—			—		29		—		29
Net income	2,365			2,455		360		(2,810	)	2,370
Less: net income attributable to noncontrolling interests	—			—		5		—		5
Net Income Attributable to Phillips 66	$	2,365		2,455		355		(2,810	)	2,365
Comprehensive Income	$	2,113		2,204		87		(2,286	)	2,118
* Net of provision for income taxes on discontinued operations:	$	—		—		15		—		15
	Millions of Dollars
	At June 30, 2014
Balance Sheet	Phillips 66			Phillips 66 Company		All Other Subsidiaries		Consolidating Adjustments		Total Consolidated
Assets
Cash and cash equivalents	$	—		1,982		2,974		—		4,956
Accounts and notes receivable	10			2,924		7,948		(772	)	10,110
Inventories	—			2,863		2,065		—		4,928
Prepaid expenses and other current assets	8			292		311		—		611
Total Current Assets	18			8,061		13,298		(772	)	20,605
Investments and long-term receivables	34,531			27,363		7,958		(59,814	)	10,038
Net properties, plants and equipment	—			12,053		4,039		—		16,092
Goodwill	—			3,098		42		—		3,140
Intangibles	—			693		42		—		735
Other assets	36			159		21		(4	)	212
Total Assets	$	34,585		51,427		25,400		(60,590	)	50,822
Liabilities and Equity
Accounts payable	$	—		7,729		5,892		(772	)	12,849
Short-term debt	(1		)	19		20		—		38
Accrued income and other taxes	—			484		601		—		1,085
Employee benefit obligations	—			269		35		—		304
Other accruals	49			143		652		—		844
Total Current Liabilities	48			8,644		7,200		(772	)	15,120
Long-term debt	5,796			145		233		—		6,174
Asset retirement obligations and accrued environmental costs	—			533		180		—		713
Deferred income taxes	—			4,586		1,104		(4	)	5,686
Employee benefit obligations	—			630		195		—		825
Other liabilities and deferred credits	7,201			2,411		6,374		(15,637	)	349
Total Liabilities	13,045			16,949		15,286		(16,413	)	28,867
Common stock	13,784			25,401		8,006		(33,407	)	13,784
Retained earnings	7,570			8,891		1,210		(10,130	)	7,541
Accumulated other comprehensive income	186			186		454		(640	)	186
Noncontrolling interests	—			—		444		—		444
Total Liabilities and Equity	$	34,585		51,427		25,400		(60,590	)	50,822
	Millions of Dollars
	At December 31, 2013
Balance Sheet	Phillips 66			Phillips 66 Company		All Other Subsidiaries		Consolidating Adjustments		Total Consolidated
Assets
Cash and cash equivalents	$	—		2,162		3,238		—		5,400
Accounts and notes receivable	9			2,174		8,130		(681	)	9,632
Inventories	—			1,962		1,392		—		3,354
Prepaid expenses and other current assets	10			368		473		—		851
Total Current Assets	19			6,666		13,233		(681	)	19,237
Investments and long-term receivables	33,178			27,417		7,135		(56,510	)	11,220
Net properties, plants and equipment	—			12,031		3,367		—		15,398
Goodwill	—			3,094		2		—		3,096
Intangibles	—			694		4		—		698
Other assets	40			112		1		(4	)	149
Total Assets	$	33,237		50,014		23,742		(57,195	)	49,798
Liabilities and Equity
Accounts payable	$	1		7,507		4,263		(681	)	11,090
Short-term debt	—			18		6		—		24
Accrued income and other taxes	—			250		622		—		872
Employee benefit obligations	—			422		54		—		476
Other accruals	49			178		242		—		469
Total Current Liabilities	50			8,375		5,187		(681	)	12,931
Long-term debt	5,796			152		183		—		6,131
Asset retirement obligations and accrued environmental costs	—			527		173		—		700
Deferred income taxes	—			5,045		1,084		(4	)	6,125
Employee benefit obligations	—			724		197		—		921
Other liabilities and deferred credits	5,441			2,155		6,691		(13,689	)	598
Total Liabilities	11,287			16,978		13,515		(14,374	)	27,406
Common stock	16,291			25,938		8,302		(34,240	)	16,291
Retained earnings	5,622			7,061		1,163		(8,224	)	5,622
Accumulated other comprehensive income	37			37		320		(357	)	37
Noncontrolling interests	—			—		442		—		442
Total Liabilities and Equity	$	33,237		50,014		23,742		(57,195	)	49,798
	Millions of Dollars
	Six Months Ended June 30, 2014
Statement of Cash Flows	Phillips 66			Phillips 66 Company		All Other Subsidiaries		Consolidating Adjustments		Total Consolidated
Cash Flows From Operating Activities
Net cash provided by continuing operating activities	$	24		1,109		1,222		(129	)	2,226
Net cash provided by discontinued operations	—			—		2		—		2
Net Cash Provided by Operating Activities	24			1,109		1,224		(129	)	2,228
Cash Flows From Investing Activities
Capital expenditures and investments*	—			(1,098	)	(753	)	718		(1,133	)
Proceeds from asset dispositions	—			998		59		(400	)	657
Intercompany lending activities	2,211			(1,122	)	(1,089	)	—		—
Advances/loans—related parties	—			—		(3	)	—		(3	)
Other	—			(91	)	125		—		34
Net cash provided by (used in) continuing investing activities	2,211			(1,313	)	(1,661	)	318		(445	)
Net cash used in discontinued operations	—			—		(2	)	—		(2	)
Net Cash Provided by (Used in) Investing Activities	2,211			(1,313	)	(1,663	)	318		(447	)
Cash Flows From Financing Activities
Repayment of debt	—			(7	)	(10	)	—		(17	)
Issuance of common stock	(12		)	—		—		—		(12	)
Repurchase of common stock	(1,256		)	—		—		—		(1,256	)
Share exchange—PSPI transaction	(450		)	—		—		—		(450	)
Dividends paid on common stock	(510		)	—		(102	)	102		(510	)
Distributions to controlling interests	—			—		(289	)	289		—
Distributions to noncontrolling interests	—			—		(13	)	—		(13	)
Other*	(7		)	31		581		(580	)	25
Net cash provided by (used in) continuing financing activities	(2,235		)	24		167		(189	)	(2,233	)
Net cash provided by (used in) discontinued operations	—			—		—		—		—
Net Cash Provided by (Used in) Financing Activities	(2,235		)	24		167		(189	)	(2,233	)
Effect of Exchange Rate Changes on Cash and Cash Equivalents	—			—		8		—		8
Net Change in Cash and Cash Equivalents	—			(180	)	(264	)	—		(444	)
Cash and cash equivalents at beginning of period	—			2,162		3,238		—		5,400
Cash and Cash Equivalents at End of Period	$	—		1,982		2,974		—		4,956
* Includes intercompany capital contributions.
	Millions of Dollars
	Six Months Ended June 30, 2013
Statement of Cash Flows	Phillips 66			Phillips 66 Company		All Other Subsidiaries		Consolidating Adjustments		Total Consolidated
Cash Flows From Operating Activities
Net cash provided by continuing operating activities	$	23		2,274		918		(70	)	3,145
Net cash provided by discontinued operations	—			—		36		—		36
Net Cash Provided by Operating Activities	23			2,274		954		(70	)	3,181
Cash Flows From Investing Activities
Capital expenditures and investments*	—			(404	)	(364	)	20		(748	)
Proceeds from asset dispositions	—			53		16		—		69
Intercompany lending activities	1,800			(1,793	)	(7	)	—		—
Collection of advances/loans—related parties	—			—		100		—		100
Net cash provided by (used in) continuing investing activities	1,800			(2,144	)	(255	)	20		(579	)
Net cash used in discontinued operations	—			—		(10	)	—		(10	)
Net Cash Provided by (Used in) Investing Activities	1,800			(2,144	)	(265	)	20		(589	)
Cash Flows From Financing Activities
Repayment of debt	(500		)	(5	)	—		—		(505	)
Issuance of common stock	(3		)	—		—		—		(3	)
Repurchase of common stock	(928		)	—		—		—		(928	)
Dividends paid on common stock	(386		)	—		(70	)	70		(386	)
Distributions to noncontrolling interests	—			—		(1	)	—		(1	)
Other*	(6		)	4		19		(20	)	(3	)
Net cash used in continuing financing activities	(1,823		)	(1	)	(52	)	50		(1,826	)
Net cash provided by (used in) discontinued operations	—			—		—		—		—
Net Cash Used in Financing Activities	(1,823		)	(1	)	(52	)	50		(1,826	)
Effect of Exchange Rate Changes on Cash and Cash Equivalents	—			—		(20	)	—		(20	)
Net Change in Cash and Cash Equivalents	—			129		617		—		746
Cash and cash equivalents at beginning of period	—			2,410		1,064		—		3,474
Cash and Cash Equivalents at End of Period	$	—		2,539		1,681		—		4,220
* Includes intercompany capital contributions.

Interim_Financial_Information_

Interim Financial Information Interim Financial Information (Policies)	6 Months Ended
	Jun. 30, 2014
Interim Financial Information [Abstract]	'
Earnings Per Share	'
	The numerator of basic earnings per share (EPS) is net income attributable to Phillips 66, reduced by noncancelable dividends paid on unvested share-based employee awards during the vesting period (participating securities). The denominator of basic EPS is the sum of the daily weighted-average number of common shares outstanding during the periods presented and fully vested stock and unit awards that have not yet been issued as common stock. The numerator of diluted EPS is also based on net income attributable to Phillips 66, which is reduced only by dividend equivalents paid on participating securities for which the dividends are more dilutive than the participation of the awards in the earnings of the periods presented. To the extent unvested stock, unit or option awards and vested unexercised stock options are dilutive, they are included with the weighted-average common shares outstanding in the denominator. Treasury stock is excluded from the denominator in both basic and diluted EPS.
Commitments and Contingencies	'
	In the case of all known contingencies (other than those related to income taxes), we accrue a liability when the loss is probable and the amount is reasonably estimable. If a range of amounts can be reasonably estimated and no amount within the range is a better estimate than any other amount, then the minimum of the range is accrued. We do not reduce these liabilities for potential insurance or third-party recoveries. If applicable, we record receivables for probable insurance or other third-party recoveries. In the case of income-tax-related contingencies, we use a cumulative probability-weighted loss accrual in cases where sustaining a tax position is less than certain.

Inventories_Tables

Inventories (Tables)	6 Months Ended
	Jun. 30, 2014
Inventory Disclosure [Abstract]	'
Summary of Inventories	'
	Inventories consisted of the following:
		Millions of Dollars
		June 30		December 31
		2014		2013
	Crude oil and petroleum products	$	4,666	3,093
	Materials and supplies	262		261
		$	4,928	3,354

Investments_Loans_and_LongTerm1

Investments, Loans and Long-Term Receivables (Tables)	6 Months Ended
	Jun. 30, 2014
Equity Method Investments and Joint Ventures [Abstract]	'
Summary of Financial Information	'
	Summarized 100 percent financial information for WRB Refining LP (WRB) and Chevron Phillips Chemical Company LLC (CPChem) were as follows:
		Millions of Dollars
		Three Months Ended			Six Months Ended
		30-Jun			30-Jun
		2014		2013	2014	2013
	Revenues	$	8,685	8,080	16,683	16,220
	Income before income taxes	1,186		997	2,310	2,765
	Net income	1,162		975	2,263	2,725

Properties_Plants_and_Equipmen1

Properties, Plants and Equipment (Tables)	6 Months Ended
	Jun. 30, 2014
Property, Plant and Equipment [Abstract]	'
Properties, Plants and Equipment with Associated Accumulated Depreciation and Amortization	'
	Our investment in PP&E, with the associated accumulated depreciation and amortization (Accum. D&A), was:
		Millions of Dollars
		30-Jun-14				31-Dec-13
		Gross		Accum.	Net	Gross	Accum.	Net
		PP&E		D&A	PP&E	PP&E	D&A	PP&E
	Midstream	$	3,381	1,141	2,240	2,865	1,104	1,761
	Chemicals	—		—	—	—	—	—
	Refining	19,644		7,053	12,591	19,191	6,718	12,473
	Marketing and Specialties	1,499		765	734	1,395	749	646
	Corporate and Other	1,026		499	527	975	457	518
	Discontinued Operations*	—		—	—	—	—	—
		$	25,550	9,458	16,092	24,426	9,028	15,398
	* At December 31, 2013, net PP&E of $58 million associated with discontinued operations was classified as current assets.

Goodwill_Tables

Goodwill (Tables)	6 Months Ended
	Jun. 30, 2014
Goodwill [Abstract]	'
Carrying amount of goodwill	'
	The carrying amount of goodwill was as follows:
		Millions of Dollars
		June 30		December 31
		2014		2013
	Midstream	$	518	518
	Refining	1,872		1,867
	Marketing and Specialties	750		711
		$	3,140	3,096

Impairments_Tables

Impairments (Tables)	6 Months Ended
	Jun. 30, 2014
Impairment Of Long Lived Assets Abstract [Abstract]	'
Impairment Charges	'
	The three- and six-month periods ended June 30, 2014 and 2013, included the following before-tax impairment charges:
		Millions of Dollars
		Three Months Ended			Six Months Ended
		30-Jun			30-Jun
		2014		2013	2014	2013
	Refining	$	1	1	2	1
	Marketing and Specialties	2		—	2	15
	Corporate and Other	—		—	—	9
		$	3	1	4	25

Earnings_per_Share_Tables

Earnings per Share (Tables)	6 Months Ended
	Jun. 30, 2014
Earnings Per Share [Abstract]	'
Reconciliation of Basic and Diluted Earnings Per Share	'
		Three Months Ended							Six Months Ended
		30-Jun							30-Jun
		2014				2013			2014			2013
		Basic			Diluted	Basic		Diluted	Basic		Diluted	Basic		Diluted
	Amounts attributed to Phillips 66 Common Stockholders (millions):
	Income from continuing operations attributable to Phillips 66	$	863		863	944		944	1,729		1,729	2,336		2,336
	Income allocated to participating securities	(2		)	—	(1	)	—	(3	)	—	(2	)	—
	Income from continuing operations available to common stockholders	861			863	943		944	1,726		1,729	2,334		2,336
	Discontinued operations	—			—	14		14	706		706	29		29
	Net Income available to common stockholders	$	861		863	957		958	2,432		2,435	2,363		2,365
	Weighted-average common shares outstanding (thousands):	562,056			565,799	615,380		619,143	570,992		574,876	618,328		622,086
	Effect of stock-based compensation	3,743			5,486	3,763		5,764	3,884		5,919	3,758		6,291
	Weighted-average common shares outstanding—EPS	565,799			571,285	619,143		624,907	574,876		580,795	622,086		628,377
	Earnings Per Share of Common Stock (dollars):
	Income from continuing operations attributable to Phillips 66	$	1.52		1.51	1.53		1.51	3		2.98	3.75		3.72
	Discontinued operations	—			—	0.02		0.02	1.23		1.21	0.05		0.04
	Earnings Per Share	$	1.52		1.51	1.55		1.53	4.23		4.19	3.8		3.76

Derivatives_and_Financial_Inst1

Derivatives and Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Summary of Fair Value of Commodity Derivative Assets and Liabilities and Gains (Losses) from Derivative Contracts	'
	The following table indicates the balance sheet line items that include the fair values of commodity derivative assets and liabilities presented net (i.e., commodity derivative assets and liabilities with the same counterparty are netted where the right of setoff exists); however, the balances in the following table are presented gross. For information on the impact of counterparty netting and collateral netting, see Note 15—Fair Value Measurements.
		Millions of Dollars
		June 30				December 31
		2014				2013
	Assets
	Accounts and notes receivable	$	—			2
	Prepaid expenses and other current assets	781				592
	Other assets	2				2
	Liabilities
	Other accruals	831				633
	Other liabilities and deferred credits	1				1
	Hedge accounting has not been used for any item in the table.
	The gains (losses) from commodity derivatives incurred, and the line items where they appear on our consolidated statement of income, were:
		Millions of Dollars
		Three Months Ended					Six Months Ended
		30-Jun					30-Jun
		2014				2013	2014		2013
	Sales and other operating revenues	$	(28	)		124	29		118
	Equity in earnings of affiliates	(2		)		2	(2	)	(1	)
	Other income	1				24	15		27
	Purchased crude oil and products	(45		)		74	(43	)	163
	Hedge accounting has not been used for any item in the table.
Summary of Material Net Exposures and Notional Amount of Derivative Contracts	'
		Open Position
		Long/(Short)
		June 30			December 31
		2014			2013
	Commodity
	Crude oil, refined products and NGL (millions of barrels)	(26	)		(9	)

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2014
Fair Value Disclosures [Abstract]	'
Fair Value Hierarchy for Material Financial Instruments and Derivative Assets and Liabilities, Including the Effect of Counterparty Netting	'
	The carrying values and fair values by hierarchy of our material financial instruments, either carried or disclosed at fair value, and derivative assets and liabilities, including any effects of master netting agreements or collateral, were:
		Millions of Dollars
		30-Jun-14
		Fair Value Hierarchy				Total Fair Value of Gross Assets & Liabilities	Effect of Counterparty Netting		Effect of Collateral Netting		Difference in Carrying Value and Fair Value		Net Carrying Value Presented on the Balance Sheet	Cash Collateral Received or Paid, Not Offset on Balance Sheet
		Level 1		Level 2	Level 3
	Commodity Derivative Assets
	Exchange-cleared instruments	$	563	152	—	715	(703	)	—		—		12	—
	OTC instruments	—		38	—	38	(13	)	—		—		25	—
	Physical forward contracts*	—		24	6	30	(1	)	—		—		29	—
	Rabbi trust assets	76		—	—	76	N/A		N/A		—		76	N/A
		$	639	214	6	859	(717	)	—		—		142
	Commodity Derivative Liabilities
	Exchange-cleared instruments	$	631	161	—	792	(703	)	(89	)	—		—	—
	OTC instruments	—		28	—	28	(13	)	—		—		15	—
	Physical forward contracts*	—		11	1	12	(1	)	—		—		11	—
	Floating-rate debt	52		—	—	52	N/A		N/A		—		52	N/A
	Fixed-rate debt, excluding capital leases**	—		6,482	—	6,482	N/A		N/A		(523	)	5,959	N/A
		$	683	6,682	1	7,366	(717	)	(89	)	(523	)	6,037
	* Physical forward contracts may have a larger value on the balance sheet than disclosed in the fair value hierarchy when the remaining contract term at the reporting date is greater than 12 months and the short-term portion is an asset while the long-term portion is a liability, or vice versa.
	** We carry fixed-rate debt on the balance sheet at amortized cost.
		Millions of Dollars
		31-Dec-13
		Fair Value Hierarchy				Total Fair Value of Gross Assets & Liabilities	Effect of Counterparty Netting		Effect of Collateral Netting		Difference in Carrying Value and Fair Value		Net Carrying Value Presented on the Balance Sheet	Cash Collateral Received or Paid, Not Offset on Balance Sheet
		Level 1		Level 2	Level 3
	Commodity Derivative Assets
	Exchange-cleared instruments	$	227	332	—	559	(538	)	—		—		21	—
	OTC instruments	—		10	—	10	(8	)	—		—		2	—
	Physical forward contracts*	—		25	2	27	—		—		—		27	—
	Rabbi trust assets	64		—	—	64	N/A		N/A		—		64	N/A
		$	291	367	2	660	(546	)	—		—		114
	Commodity Derivative Liabilities
	Exchange-cleared instruments	$	253	326	—	579	(538	)	(41	)	—		—	—
	OTC instruments	—		11	—	11	(8	)	—		—		3	—
	Physical forward contracts*	—		43	1	44	—		—		—		44	—
	Floating-rate debt	50		—	—	50	N/A		N/A		—		50	N/A
	Fixed-rate debt, excluding capital leases**	—		6,168	—	6,168	N/A		N/A		(262	)	5,906	N/A
		$	303	6,548	1	6,852	(546	)	(41	)	(262	)	6,003
	* Physical forward contracts may have a larger value on the balance sheet than disclosed in the fair value hierarchy when the remaining contract term at the reporting date is greater than 12 months and the short-term portion is an asset while the long-term portion is a liability, or vice versa.
	** We carry fixed-rate debt on the balance sheet at amortized cost.
Value of Assets by Major Category, Measured at Fair Value on Nonrecurring Basis	'
	The following table shows the values of assets, by major category, measured at fair value on a nonrecurring basis in periods subsequent to their initial recognition during the six-month period ended June 30, 2013:
		Millions of Dollars
				Fair Value
				Measurements Using
		Fair Value*		Level 1	Level 2	Level 3		Before-
				Inputs	Inputs	Inputs		Tax Loss
	30-Jun-13
	Net properties, plants and equipment (held for use)	$	22	22	—	—		27
	* Represents the fair value at the time of the impairment

Employee_Benefit_Plans_Tables

Employee Benefit Plans (Tables)	6 Months Ended
	Jun. 30, 2014
Compensation and Retirement Disclosure [Abstract]	'
Components of Net Periodic Benefit Cost	'
	The components of net periodic benefit cost for the three and six months ended June 30, 2014 and 2013, were as follows:
		Millions of Dollars
		Pension Benefits									Other Benefits
		2014					2013				2014		2013
		U.S.			Int’l.		U.S.		Int’l.
	Components of Net Periodic Benefit Cost
	Three Months Ended June 30
	Service cost	$	31		10		31		9		2		2
	Interest cost	27			9		23		8		2		1
	Expected return on plan assets	(35		)	(10	)	(30	)	(8	)	—		—
	Amortization of prior service cost (credit)	—			—		1		(1	)	(1	)	(1	)
	Recognized net actuarial loss	10			3		21		3		—		—
	Total net periodic benefit cost	$	33		12		46		11		3		2
	Six Months Ended June 30
	Service cost	$	61		20		62		18		4		4
	Interest cost	54			18		46		16		4		3
	Expected return on plan assets	(71		)	(19	)	(60	)	(15	)	—		—
	Amortization of prior service cost (credit)	1			(1	)	1		(1	)	(1	)	(1	)
	Recognized net actuarial loss (gain)	20			6		42		8		(1	)	—
	Total net periodic benefit cost	$	65		24		91		26		6		6

Accumulated_Other_Comprehensiv1

Accumulated Other Comprehensive Income (Loss) (Tables)	6 Months Ended
	Jun. 30, 2014
Equity [Abstract]	'
Summary of Changes in and Reclassifications Out of Accumulated Other Comprehensive Income (Loss) by Component	'
	The following table depicts changes in accumulated other comprehensive income (loss) by component, as well as detail on reclassifications out of accumulated other comprehensive income (loss):
		Millions of Dollars
		Defined Benefit Plans			Foreign Currency Translation		Hedging		Accumulated Other Comprehensive Income (Loss)
	31-Dec-12	$	(778	)	466		(2	)	(314	)
	Other comprehensive loss before reclassifications	(5		)	(281	)	1		(285	)
	Amounts reclassified from accumulated other comprehensive income (loss)*
	Amortization of defined benefit plan items**
	Actuarial losses	33			—		—		33
	Net current period other comprehensive income (loss)	28			(281	)	1		(252	)
	30-Jun-13	$	(750	)	185		(1	)	(566	)
	31-Dec-13	$	(404	)	443		(2	)	37
	Other comprehensive income before reclassifications	4			128		—		132
	Amounts reclassified from accumulated other comprehensive income (loss)*
	Amortization of defined benefit plan items**
	Actuarial losses	17			—		—		17
	Net current period other comprehensive income	21			128		—		149
	30-Jun-14	$	(383	)	571		(2	)	186
	* There were no significant reclassifications related to foreign currency translation or hedging.
	** These accumulated other comprehensive income (loss) components are included in the computation of net periodic benefit cost (see Note 16—Employee Benefit Plans, for additional information).

Cash_Flow_Information_Tables

Cash Flow Information (Tables)	6 Months Ended
	Jun. 30, 2014
Supplemental Cash Flow Information [Abstract]	'
Cash Flow Information	'
		Millions of Dollars
		Six Months Ended
		30-Jun
		2014		2013
	Cash Payments
	Interest	$	123	132
	Income taxes	1,093		896
	Noncash Investing and Financing Activities
	As discussed more fully in Note 5—Assets Held for Sale or Sold, on February 25, 2014, we completed the exchange of our flow improvers business for shares of Phillips 66 common stock owned by the other party to the transaction. The noncash portion of the net assets surrendered by us in the exchange was $204 million, and we received approximately 17.4 million shares of our common stock, with a fair value at the time of the exchange of $1.35 billion.

Related_Party_Transactions_Tab

Related Party Transactions (Tables)	6 Months Ended
	Jun. 30, 2014
Related Party Transactions [Abstract]	'
Significant Transactions with Related Parties	'
	Significant transactions with related parties were:
		Millions of Dollars
		Three Months Ended			Six Months Ended
		30-Jun			30-Jun
		2014		2013	2014	2013
	Operating revenues and other income (a)	$	1,586	2,050	3,653	3,799
	Purchases (b)	4,535		4,474	8,526	8,761
	Operating expenses and selling, general and administrative expenses (c)	41		28	76	52
	Interest expense (d)	2		2	4	4
	(a)	We sold crude oil to the Malaysian Refining Company Sdn. Bdh. (MRC). NGL and other petrochemical feedstocks, along with solvents, were sold to CPChem, and gas oil and hydrogen feedstocks were sold to Excel. Certain feedstocks and intermediate products were sold to WRB. We also acted as agent for WRB in supplying other crude oil and feedstocks, wherein the transactional amounts did not impact operating revenues. In addition, we charged several of our affiliates, including CPChem and MSLP, for the use of common facilities, such as steam generators, waste and water treaters, and warehouse facilities.
	(b)	We purchased refined products from WRB. We also acted as agent for WRB in distributing asphalt and solvents, wherein the transactional amounts did not impact purchases. We purchased natural gas and NGL from DCP Midstream, LLC (DCP Midstream) and CPChem for use in our refinery processes and other feedstocks from various affiliates. We purchased refined products from MRC. We also paid fees to various pipeline equity companies for transporting finished refined products. In addition, we paid a price upgrade to MSLP for heavy crude processing. We purchased base oils and fuel products from Excel for use in our refining and specialty businesses.
	(c)	We paid utility, commission and processing fees to various affiliates.
	(d)	We incurred interest expense on a note payable to MSLP.

Segment_Disclosures_and_Relate1

Segment Disclosures and Related Information (Tables)	6 Months Ended
	Jun. 30, 2014
Segment Reporting [Abstract]	'
Analysis of Results by Operating Segment	'
	Analysis of Results by Operating Segment
		Millions of Dollars
		Three Months Ended					Six Months Ended
		30-Jun					30-Jun
		2014			2013		2014		2013
	Sales and Other Operating Revenues
	Midstream
	Total sales	$	1,155		1,481		3,310		3,109
	Intersegment eliminations	(274		)	(210	)	(566	)	(442	)
	Total Midstream	881			1,271		2,744		2,667
	Chemicals	2			2		4		4
	Refining
	Total sales	33,628			30,994		62,843		60,756
	Intersegment eliminations	(18,793		)	(18,510	)	(36,351	)	(36,367	)
	Total Refining	14,835			12,484		26,492		24,389
	Marketing and Specialties
	Total sales	30,489			29,729		57,535		57,909
	Intersegment eliminations	(666		)	(305	)	(958	)	(583	)
	Total Marketing and Specialties	29,823			29,424		56,577		57,326
	Corporate and Other	8			9		15		15
	Consolidated sales and other operating revenues	$	45,549		43,190		85,832		84,401
	Net Income (Loss) Attributable to Phillips 66
	Midstream	$	108		90		296		201
	Chemicals	324			181		640		463
	Refining	390			455		696		1,359
	Marketing and Specialties	162			344		299		534
	Corporate and Other	(121		)	(126	)	(202	)	(221	)
	Discontinued operations	—			14		706		29
	Consolidated net income attributable to Phillips 66	$	863		958		2,435		2,365
		Millions of Dollars
		June 30				December 31
		2014				2013
	Total Assets
	Midstream	$	5,803			5,485
	Chemicals	4,930				4,377
	Refining	26,946				26,046
	Marketing and Specialties	7,380				7,331
	Corporate and Other	5,763				6,348
	Discontinued operations	—				211
	Consolidated total assets	$	50,822			49,798

Condensed_Consolidating_Financ1

Condensed Consolidating Financial Information (Tables)	6 Months Ended
	Jun. 30, 2014
Condensed Financial Information of Parent Company Only Disclosure [Abstract]	'
Condensed Consolidating Statement of Income	'
		Millions of Dollars
		Three Months Ended June 30, 2014
	Statement of Income	Phillips 66			Phillips 66 Company		All Other Subsidiaries		Consolidating Adjustments		Total Consolidated
	Revenues and Other Income
	Sales and other operating revenues	$	—		30,145		15,404		—		45,549
	Equity in earnings of affiliates	908			604		130		(878	)	764
	Net gain on dispositions	—			—		9		—		9
	Other income (loss)	—			18		(1	)	—		17
	Intercompany revenues	—			1,057		5,700		(6,757	)	—
	Total Revenues and Other Income	908			31,824		21,242		(7,635	)	46,339
	Costs and Expenses
	Purchased crude oil and products	—			27,670		18,358		(6,712	)	39,316
	Operating expenses	—			862		226		(11	)	1,077
	Selling, general and administrative expenses	2			316		117		(23	)	412
	Depreciation and amortization	—			183		56		—		239
	Impairments	—			1		2		—		3
	Taxes other than income taxes	—			1,416		2,416		—		3,832
	Accretion on discounted liabilities	—			4		2		—		6
	Interest and debt expense	67			2		8		(11	)	66
	Foreign currency transaction losses	—			—		29		—		29
	Total Costs and Expenses	69			30,454		21,214		(6,757	)	44,980
	Income from continuing operations before income taxes	839			1,370		28		(878	)	1,359
	Provision (benefit) for income taxes	(24		)	462		49		—		487
	Income (Loss) From Continuing Operations	863			908		(21	)	(878	)	872
	Income from discontinued operations	—			—		—		—		—
	Net income (loss)	863			908		(21	)	(878	)	872
	Less: net income attributable to noncontrolling interests	—			—		9		—		9
	Net Income (Loss) Attributable to Phillips 66	$	863		908		(30	)	(878	)	863
	Comprehensive Income	$	972		1,017		81		(1,089	)	981
		Millions of Dollars
		Three Months Ended June 30, 2013
	Statement of Income	Phillips 66			Phillips 66 Company		All Other Subsidiaries		Consolidating Adjustments		Total Consolidated
	Revenues and Other Income
	Sales and other operating revenues	$	—		29,335		13,855		—		43,190
	Equity in earnings of affiliates	1,003			637		78		(1,100	)	618
	Net gain on dispositions	—			40		1		—		41
	Other income (loss)	(2		)	34		17		—		49
	Intercompany revenues	—			412		5,530		(5,942	)	—
	Total Revenues and Other Income	1,001			30,458		19,481		(7,042	)	43,898
	Costs and Expenses
	Purchased crude oil and products	—			26,420		16,747		(5,910	)	37,257
	Operating expenses	—			821		218		(7	)	1,032
	Selling, general and administrative expenses	1			264		126		(23	)	368
	Depreciation and amortization	—			177		52		—		229
	Impairments	—			—		1		—		1
	Taxes other than income taxes	—			1,295		2,206		—		3,501
	Accretion on discounted liabilities	—			5		1		—		6
	Interest and debt expense	67			3		1		(2	)	69
	Foreign currency transaction gains	—			(1	)	(17	)	—		(18	)
	Total Costs and Expenses	68			28,984		19,335		(5,942	)	42,445
	Income from continuing operations before income taxes	933			1,474		146		(1,100	)	1,453
	Provision (benefit) for income taxes	(25		)	471		61		—		507
	Income From Continuing Operations	958			1,003		85		(1,100	)	946
	Income from discontinued operations*	—			—		14		—		14
	Net income	958			1,003		99		(1,100	)	960
	Less: net income attributable to noncontrolling interests	—			—		2		—		2
	Net Income Attributable to Phillips 66	$	958		1,003		97		(1,100	)	958
	Comprehensive Income	$	1,013		1,059		141		(1,197	)	1,016
	* Net of provision for income taxes on discontinued operations:	$	—		—		7		—		7
		Millions of Dollars
		Six Months Ended June 30, 2014
	Statement of Income	Phillips 66			Phillips 66 Company		All Other Subsidiaries		Consolidating Adjustments		Total Consolidated
	Revenues and Other Income
Sales and other operating revenues	$	—		57,384		28,448		—		85,832
Equity in earnings of affiliates	1,830			1,450		308		(2,046	)	1,542
Net gain on dispositions	—			—		16		—		16
Other income	—			40		8		—		48
Intercompany revenues	—			1,335		10,401		(11,736	)	—
Total Revenues and Other Income	1,830			60,209		39,181		(13,782	)	87,438
Costs and Expenses
Purchased crude oil and products	—			52,054		33,296		(11,653	)	73,697
Operating expenses	2			1,765		417		(17	)	2,167
Selling, general and administrative expenses	5			602		255		(48	)	814
Depreciation and amortization	—			363		110		—		473
Impairments	—			2		2		—		4
Taxes other than income taxes	—			2,717		4,753		—		7,470
Accretion on discounted liabilities	—			9		3		—		12
Interest and debt expense	133			6		13		(18	)	134
Foreign currency transaction losses	—			—		10		—		10
Total Costs and Expenses	140			57,518		38,859		(11,736	)	84,781
Income from continuing operations before income taxes	1,690			2,691		322		(2,046	)	2,657
Provision (benefit) for income taxes	(49		)	861		101		—		913
Income from Continuing Operations	1,739			1,830		221		(2,046	)	1,744
Income from discontinued operations*	696			—		10		—		706
Net income	2,435			1,830		231		(2,046	)	2,450
Less: net income attributable to noncontrolling interests	—			—		15		—		15
Net Income Attributable to Phillips 66	$	2,435		1,830		216		(2,046	)	2,435
Comprehensive Income	$	2,584		1,979		365		(2,329	)	2,599
* Net of provision for income taxes on discontinued operations:	$	—		—		5		—		5
	Millions of Dollars
	Six Months Ended June 30, 2013
Statement of Income	Phillips 66			Phillips 66 Company		All Other Subsidiaries		Consolidating Adjustments		Total Consolidated
Revenues and Other Income
Sales and other operating revenues	$	—		56,972		27,429		—		84,401
Equity in earnings of affiliates	2,455			1,776		236		(2,810	)	1,657
Net gain on dispositions	—			41		1		—		42
Other income (loss)	(2		)	49		25		—		72
Intercompany revenues	—			902		10,363		(11,265	)	—
Total Revenues and Other Income	2,453			59,740		38,054		(14,075	)	86,172
Costs and Expenses
Purchased crude oil and products	—			51,172		32,527		(11,199	)	72,500
Operating expenses	—			1,620		404		(14	)	2,010
Selling, general and administrative expenses	3			470		268		(46	)	695
Depreciation and amortization	—			360		111		—		471
Impairments	—			(3	)	28		—		25
Taxes other than income taxes	—			2,504		4,321		—		6,825
Accretion on discounted liabilities	—			10		2		—		12
Interest and debt expense	134			6		5		(6	)	139
Foreign currency transaction gains	—			—		(16	)	—		(16	)
Total Costs and Expenses	137			56,139		37,650		(11,265	)	82,661
Income from continuing operations before income taxes	2,316			3,601		404		(2,810	)	3,511
Provision (benefit) for income taxes	(49		)	1,146		73		—		1,170
Income from Continuing Operations	2,365			2,455		331		(2,810	)	2,341
Income from discontinued operations*	—			—		29		—		29
Net income	2,365			2,455		360		(2,810	)	2,370
Less: net income attributable to noncontrolling interests	—			—		5		—		5
Net Income Attributable to Phillips 66	$	2,365		2,455		355		(2,810	)	2,365
Comprehensive Income	$	2,113		2,204		87		(2,286	)	2,118
* Net of provision for income taxes on discontinued operations:	$	—		—		15		—		15
Condensed Consolidating Balance Sheet	'
		Millions of Dollars
		At June 30, 2014
	Balance Sheet	Phillips 66			Phillips 66 Company		All Other Subsidiaries		Consolidating Adjustments		Total Consolidated
	Assets
	Cash and cash equivalents	$	—		1,982		2,974		—		4,956
	Accounts and notes receivable	10			2,924		7,948		(772	)	10,110
	Inventories	—			2,863		2,065		—		4,928
	Prepaid expenses and other current assets	8			292		311		—		611
	Total Current Assets	18			8,061		13,298		(772	)	20,605
	Investments and long-term receivables	34,531			27,363		7,958		(59,814	)	10,038
	Net properties, plants and equipment	—			12,053		4,039		—		16,092
	Goodwill	—			3,098		42		—		3,140
	Intangibles	—			693		42		—		735
	Other assets	36			159		21		(4	)	212
	Total Assets	$	34,585		51,427		25,400		(60,590	)	50,822
	Liabilities and Equity
	Accounts payable	$	—		7,729		5,892		(772	)	12,849
	Short-term debt	(1		)	19		20		—		38
	Accrued income and other taxes	—			484		601		—		1,085
	Employee benefit obligations	—			269		35		—		304
	Other accruals	49			143		652		—		844
	Total Current Liabilities	48			8,644		7,200		(772	)	15,120
	Long-term debt	5,796			145		233		—		6,174
	Asset retirement obligations and accrued environmental costs	—			533		180		—		713
	Deferred income taxes	—			4,586		1,104		(4	)	5,686
	Employee benefit obligations	—			630		195		—		825
	Other liabilities and deferred credits	7,201			2,411		6,374		(15,637	)	349
	Total Liabilities	13,045			16,949		15,286		(16,413	)	28,867
	Common stock	13,784			25,401		8,006		(33,407	)	13,784
	Retained earnings	7,570			8,891		1,210		(10,130	)	7,541
	Accumulated other comprehensive income	186			186		454		(640	)	186
	Noncontrolling interests	—			—		444		—		444
	Total Liabilities and Equity	$	34,585		51,427		25,400		(60,590	)	50,822
		Millions of Dollars
		At December 31, 2013
	Balance Sheet	Phillips 66			Phillips 66 Company		All Other Subsidiaries		Consolidating Adjustments		Total Consolidated
	Assets
	Cash and cash equivalents	$	—		2,162		3,238		—		5,400
	Accounts and notes receivable	9			2,174		8,130		(681	)	9,632
	Inventories	—			1,962		1,392		—		3,354
	Prepaid expenses and other current assets	10			368		473		—		851
	Total Current Assets	19			6,666		13,233		(681	)	19,237
	Investments and long-term receivables	33,178			27,417		7,135		(56,510	)	11,220
	Net properties, plants and equipment	—			12,031		3,367		—		15,398
	Goodwill	—			3,094		2		—		3,096
	Intangibles	—			694		4		—		698
	Other assets	40			112		1		(4	)	149
	Total Assets	$	33,237		50,014		23,742		(57,195	)	49,798
	Liabilities and Equity
	Accounts payable	$	1		7,507		4,263		(681	)	11,090
	Short-term debt	—			18		6		—		24
	Accrued income and other taxes	—			250		622		—		872
	Employee benefit obligations	—			422		54		—		476
	Other accruals	49			178		242		—		469
	Total Current Liabilities	50			8,375		5,187		(681	)	12,931
	Long-term debt	5,796			152		183		—		6,131
	Asset retirement obligations and accrued environmental costs	—			527		173		—		700
	Deferred income taxes	—			5,045		1,084		(4	)	6,125
	Employee benefit obligations	—			724		197		—		921
	Other liabilities and deferred credits	5,441			2,155		6,691		(13,689	)	598
	Total Liabilities	11,287			16,978		13,515		(14,374	)	27,406
	Common stock	16,291			25,938		8,302		(34,240	)	16,291
	Retained earnings	5,622			7,061		1,163		(8,224	)	5,622
Accumulated other comprehensive income	37			37		320		(357	)	37
Noncontrolling interests	—			—		442		—		442
Total Liabilities and Equity	$	33,237		50,014		23,742		(57,195	)	49,798
Condensed Consolidating Statement of Cash Flows	'
		Millions of Dollars
		Six Months Ended June 30, 2014
	Statement of Cash Flows	Phillips 66			Phillips 66 Company		All Other Subsidiaries		Consolidating Adjustments		Total Consolidated
	Cash Flows From Operating Activities
	Net cash provided by continuing operating activities	$	24		1,109		1,222		(129	)	2,226
	Net cash provided by discontinued operations	—			—		2		—		2
	Net Cash Provided by Operating Activities	24			1,109		1,224		(129	)	2,228
	Cash Flows From Investing Activities
	Capital expenditures and investments*	—			(1,098	)	(753	)	718		(1,133	)
	Proceeds from asset dispositions	—			998		59		(400	)	657
	Intercompany lending activities	2,211			(1,122	)	(1,089	)	—		—
	Advances/loans—related parties	—			—		(3	)	—		(3	)
	Other	—			(91	)	125		—		34
	Net cash provided by (used in) continuing investing activities	2,211			(1,313	)	(1,661	)	318		(445	)
	Net cash used in discontinued operations	—			—		(2	)	—		(2	)
	Net Cash Provided by (Used in) Investing Activities	2,211			(1,313	)	(1,663	)	318		(447	)
	Cash Flows From Financing Activities
	Repayment of debt	—			(7	)	(10	)	—		(17	)
	Issuance of common stock	(12		)	—		—		—		(12	)
	Repurchase of common stock	(1,256		)	—		—		—		(1,256	)
	Share exchange—PSPI transaction	(450		)	—		—		—		(450	)
	Dividends paid on common stock	(510		)	—		(102	)	102		(510	)
	Distributions to controlling interests	—			—		(289	)	289		—
	Distributions to noncontrolling interests	—			—		(13	)	—		(13	)
	Other*	(7		)	31		581		(580	)	25
	Net cash provided by (used in) continuing financing activities	(2,235		)	24		167		(189	)	(2,233	)
	Net cash provided by (used in) discontinued operations	—			—		—		—		—
	Net Cash Provided by (Used in) Financing Activities	(2,235		)	24		167		(189	)	(2,233	)
	Effect of Exchange Rate Changes on Cash and Cash Equivalents	—			—		8		—		8
	Net Change in Cash and Cash Equivalents	—			(180	)	(264	)	—		(444	)
	Cash and cash equivalents at beginning of period	—			2,162		3,238		—		5,400
	Cash and Cash Equivalents at End of Period	$	—		1,982		2,974		—		4,956
	* Includes intercompany capital contributions.
		Millions of Dollars
		Six Months Ended June 30, 2013
	Statement of Cash Flows	Phillips 66			Phillips 66 Company		All Other Subsidiaries		Consolidating Adjustments		Total Consolidated
	Cash Flows From Operating Activities
	Net cash provided by continuing operating activities	$	23		2,274		918		(70	)	3,145
	Net cash provided by discontinued operations	—			—		36		—		36
	Net Cash Provided by Operating Activities	23			2,274		954		(70	)	3,181
	Cash Flows From Investing Activities
	Capital expenditures and investments*	—			(404	)	(364	)	20		(748	)
	Proceeds from asset dispositions	—			53		16		—		69
	Intercompany lending activities	1,800			(1,793	)	(7	)	—		—
	Collection of advances/loans—related parties	—			—		100		—		100
	Net cash provided by (used in) continuing investing activities	1,800			(2,144	)	(255	)	20		(579	)
	Net cash used in discontinued operations	—			—		(10	)	—		(10	)
	Net Cash Provided by (Used in) Investing Activities	1,800			(2,144	)	(265	)	20		(589	)
	Cash Flows From Financing Activities
	Repayment of debt	(500		)	(5	)	—		—		(505	)
	Issuance of common stock	(3		)	—		—		—		(3	)
	Repurchase of common stock	(928		)	—		—		—		(928	)
	Dividends paid on common stock	(386		)	—		(70	)	70		(386	)
	Distributions to noncontrolling interests	—			—		(1	)	—		(1	)
	Other*	(6		)	4		19		(20	)	(3	)
	Net cash used in continuing financing activities	(1,823		)	(1	)	(52	)	50		(1,826	)
	Net cash provided by (used in) discontinued operations	—			—		—		—		—
	Net Cash Used in Financing Activities	(1,823		)	(1	)	(52	)	50		(1,826	)
	Effect of Exchange Rate Changes on Cash and Cash Equivalents	—			—		(20	)	—		(20	)
	Net Change in Cash and Cash Equivalents	—			129		617		—		746
	Cash and cash equivalents at beginning of period	—			2,410		1,064		—		3,474
	Cash and Cash Equivalents at End of Period	$	—		2,539		1,681		—		4,220
	* Includes intercompany capital contributions.

Variable_Interest_Entities_VIE1

Variable Interest Entities (VIEs) (Narrative) (Details) (USD $)	Jun. 30, 2014	Jun. 30, 2014	Aug. 31, 2009	Aug. 28, 2009	Jun. 30, 2014	Apr. 30, 2012	Jun. 30, 2014	Jun. 30, 2014	Apr. 30, 2012	Aug. 27, 2009	Jun. 30, 2014
In Millions, unless otherwise specified		Merey Sweeny [Member]	Merey Sweeny [Member]	Merey Sweeny [Member]	Merey Sweeny [Member]	Merey Sweeny [Member]	Excel Paralubes [Member]	Excel Paralubes [Member]	Excel Paralubes [Member]	Conocophillips [Member]	Conocophillips [Member]
					Guarantees of Joint Venture Debt [Member]	Guarantees of Joint Venture Debt [Member]		Guarantees of Joint Venture Debt [Member]	Guarantees of Joint Venture Debt [Member]		Excel Paralubes [Member]
											Guarantees of Joint Venture Debt [Member]
Variable interest entities VIEs (Textual) [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Additional ownership interest acquired in MSLP that is in dispute	'	'	50.00%	50.00%	'	'	'	'	'	'	'
Debt guarantee to lender of 8.85% senior notes issued by MSLP, percentage	'	'	'	'	100.00%	'	'	'	'	'	'
Stated interest rate of debt issued by VIE, percentage	'	'	'	'	8.85%	8.85%	'	'	7.43%	'	'
Maximum exposure under debt guarantee	'	'	'	'	$203	'	'	$43	'	'	'
Book value of investment in VIE	'	131	'	'	'	'	127	'	'	'	'
Percentage of ownership interest in Excel	'	'	'	'	'	'	50.00%	'	'	50.00%	'
Percentage of governance interest in Excel	'	'	'	'	'	'	50.00%	'	'	'	'
Liquidity support guarantee of VIE shared with CoVenturer	'	'	'	'	'	'	60	'	'	'	'
Percentage of guarantee	'	'	'	'	'	100.00%	50.00%	'	'	'	50.00%
Outstanding principal debt balance of Excel	'	'	'	'	'	'	86	'	'	'	'
Liquidity support guarantee of Excel	'	'	'	'	'	'	30	'	'	'	'
Maximum exposure to loss	190	'	'	'	'	'	'	'	'	'	'
Fxed annual contractual payments under the consignment fuels agreement	$80	'	'	'	'	'	'	'	'	'	'

Inventories_Summary_of_Invento

Inventories (Summary of Inventory) (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Summary of inventories	'	'
Crude oil and petroleum products	$4,666	$3,093
Materials and supplies	262	261
Inventories	$4,928	$3,354

Inventories_Narrative_Details

Inventories (Narrative) (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Inventory Disclosure [Abstract]	'	'
Inventories valued on the last-in, first out (LIFO) basis	$4,529	$2,945
Estimated of excess of current replacement cost over LIFO cost of inventories	$8,000	$7,600

Business_Combinations_Narrativ

Business Combinations (Narrative) (Details) (USD $)	1 Months Ended	6 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Jun. 30, 2014
Business Acquisition [Line Items]	'	'
Number of refineries	1	15
Power and Steam Generation Plant, Co-Venturerer [Member]	'	'
Business Acquisition [Line Items]	'	'
Amount paid, net of acquired cash, to acquire our co-venturer's interest	70	'
Net PP&E provisionally recorded	141	'
Intangible assets provisionally recorded	40	'
Goodwill provisionally recorded	39	'
Debt provisionally recorded	68	'

Assets_Held_for_Sale_or_Sold_N

Assets Held for Sale or Sold (Narrative) (Details) (USD $)	3 Months Ended		6 Months Ended		2 Months Ended	6 Months Ended		1 Months Ended
In Millions, except Share data in Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Feb. 25, 2014	Jun. 30, 2014	Dec. 31, 2013	31-May-13
					Phillips Specialty Products Inc [Member]	Phillips Specialty Products Inc [Member]	Phillips Specialty Products Inc [Member]	E-Gas Technology Business [Member]
					Marketing and Specialties [Member]	Marketing and Specialties [Member]	Marketing and Specialties [Member]	Marketing and Specialties [Member]
Assets Held for Sale or Sold (Narrative) [Abstract]	'	'	'	'	'	'	'	'
Carrying value	'	'	'	'	$685	'	$193	'
Net property, plant and equipment included in net carrying value of PSPI	'	'	'	'	60	'	58	'
Allocated goodwill included in net carrying value	'	'	'	'	117	'	117	'
Shares of Phillips 66 common stock received in exchange	'	'	'	15,025	17,400	'	'	'
Before-tax gain	'	'	'	'	696	696	'	'
Cash and cash equivalents included in carrying value	'	'	'	'	481	'	'	'
PSPI's cash included in net carrying value	'	'	450	'	'	450	'	'
Net carrying value at time of disposition	'	'	'	'	'	'	'	13
Before-tax gain	$9	$41	$16	$42	'	'	'	$40

Investments_Loans_and_LongTerm2

Investments, Loans and Long-Term Receivables (Summary of Financial Information for Equity Method Investments) (Details) (USD $)	3 Months Ended		6 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Summary of financial information	'	'	'	'
Revenues	$8,685	$8,080	$16,683	$16,220
Income before income taxes	1,186	997	2,310	2,765
Net income	$1,162	$975	$2,263	$2,725

Investments_Loans_and_LongTerm3

Investments, Loans and Long-Term Receivables (Narrative) (Details) (USD $)	1 Months Ended					6 Months Ended
	Mar. 31, 2014	Jun. 30, 2014	Aug. 31, 2009	Aug. 28, 2009	Aug. 27, 2009	Jun. 30, 2014	Aug. 27, 2009
	WRB Refining LP [Member]	WRB Refining LP [Member]	Merey Sweeny [Member]	Merey Sweeny [Member]	Petroleos De Venezuela S.A. (PDVSA) [Member]	Cenovus Energy Inc [Member]	Conocophillips [Member]
						WRB Refining LP [Member]
Schedule of Equity Method Investments [Line Items]	'	'	'	'	'	'	'
Contribution to WRB Cenovus was obligated to make	'	'	'	'	'	$7,500,000,000	'
Total distribution received	1,232,000,000	'	'	'	'	'	'
Dividend considered an operating cash inflow	760,000,000	'	'	'	'	'	'
Dividend considered an investing cash inflow	472,000,000	'	'	'	'	'	'
Book value of our investment in WRB	'	1,889,000,000	'	'	'	'	'
Basis difference in book value of our investment in WRB	'	$3,465,000,000	'	'	'	'	'
Percentage of ownership interest	'	50.00%	'	'	'	'	50.00%
Percentage of equity interest of others	'	'	'	'	50.00%	'	'
Additional ownership interest acquired	'	'	50.00%	50.00%	'	'	'

Properties_Plants_and_Equipmen2

Properties, Plants and Equipment (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Properties, plants and equipment with the associated accumulated depreciation and amortization	'	'
Gross PP&E	$25,550	$24,426
Accum D&A	9,458	9,028
Net PP&E	16,092	15,398
Midstream [Member]	'	'
Properties, plants and equipment with the associated accumulated depreciation and amortization	'	'
Gross PP&E	3,381	2,865
Accum D&A	1,141	1,104
Net PP&E	2,240	1,761
Chemicals [Member]	'	'
Properties, plants and equipment with the associated accumulated depreciation and amortization	'	'
Gross PP&E	'	'
Accum D&A	'	'
Net PP&E	'	'
Refining [Member]	'	'
Properties, plants and equipment with the associated accumulated depreciation and amortization	'	'
Gross PP&E	19,644	19,191
Accum D&A	7,053	6,718
Net PP&E	12,591	12,473
Marketing and Specialties [Member]	'	'
Properties, plants and equipment with the associated accumulated depreciation and amortization	'	'
Gross PP&E	1,499	1,395
Accum D&A	765	749
Net PP&E	734	646
Corporate and Other [Member]	'	'
Properties, plants and equipment with the associated accumulated depreciation and amortization	'	'
Gross PP&E	1,026	975
Accum D&A	499	457
Net PP&E	527	518
Current Assets [Member]	'	'
Properties, plants and equipment with the associated accumulated depreciation and amortization	'	'
Net PP&E associated with discontinued operations classified as current assets	'	$58

Goodwill_Details

Goodwill (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Goodwill [Line Items]	'	'
Goodwill	$3,140	$3,096
Midstream [Member]	'	'
Goodwill [Line Items]	'	'
Goodwill	518	518
Refining [Member]	'	'
Goodwill [Line Items]	'	'
Goodwill	1,872	1,867
Marketing and Specialties [Member]	'	'
Goodwill [Line Items]	'	'
Goodwill	$750	$711

Goodwill_Narrative_Details

Goodwill (Narrative) (Details) (USD $)	0 Months Ended	6 Months Ended
	Jan. 02, 2013	Jun. 30, 2014	Jun. 30, 2014	Mar. 31, 2014
		Refining [Member]	Marketing and Specialties [Member]	Power and Steam Generation Plant, Co-Venturerer [Member]
Business Acquisition [Line Items]	'	'	'	'
Goodwill reallocated from the Refining segment to the M&S segment	'	($52,000,000)	$52,000,000	'
Goodwill impairment recognition required after testing completed	0	'	'	'
Goodwill provisionally recorded	'	'	'	$39,000,000

Impairments_Details

Impairments (Details) (USD $)	3 Months Ended		6 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Impairment Charges	'	'	'	'
Before-tax impairment charges	$3	$1	$4	$25
Refining [Member]	'	'	'	'
Impairment Charges	'	'	'	'
Before-tax impairment charges	1	1	2	1
Marketing and Specialties [Member]	'	'	'	'
Impairment Charges	'	'	'	'
Before-tax impairment charges	2	'	2	15
Corporate and Other [Member]	'	'	'	'
Impairment Charges	'	'	'	'
Before-tax impairment charges	'	'	'	$9

Impairments_Narrative_Details

Impairments (Narrative) (Details) (USD $)	6 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2013	Jun. 30, 2014
		Marketing and Specialties [Member]
Impaired Long-Lived Assets Held and Used [Line Items]	'	'
Held-for-use impairment	$27	$15

Earnings_per_Share_Summary_of_

Earnings per Share (Summary of Earnings Per Share Calculation) (Details) (USD $)	3 Months Ended				6 Months Ended
In Millions, except Share data in Thousands, unless otherwise specified	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014		Jun. 30, 2013
Basic EPS Calculation	'		'		'		'
Income from continuing operations attributable to Phillips 66	$863		$944		$1,729		$2,336
Income allocated to participating securities	-2		-1		-3		-2
Income from continuing operations available to common stockholders	861		943		1,726		2,334
Discontinued operations	'		14		706		29
Net Income available to common stockholders	861		957		2,432		2,363
Weighted-average common shares outstanding (thousands)	562,056		615,380		570,992		618,328
Effect of stock-based compensation (thousands)	3,743		3,763		3,884		3,758
Weighted-average commons shares outstanding - EPS (thousands)	565,799	[1]	619,143	[1]	574,876	[1]	622,086	[1]
Income from continuing operations attributable to Phillips 66, per share (dollars)	$1.52		$1.53		$3		$3.75
Discontinued operations, per share (dollars)	'		$0.02		$1.23		$0.05
Earnings Per Share (dollars)	$1.52		$1.55		$4.23		$3.80
Diluted EPS Calculation	'		'		'		'
Income from continuing operations available to common stockholders	863		944		1,729		2,336
Net Income available to common stockholders	$863		$958		$2,435		$2,365
Effect of stock-based compensation (thousands)	5,486		5,764		5,919		6,291
Weighted-average commons shares outstanding - EPS (thousands)	571,285	[1]	624,907	[1]	580,795	[1]	628,377	[1]
Income from continuing operations attributable to Phillips 66, per share (dollars)	$1.51		$1.51		$2.98		$3.72
Discontinued operations, per share (dollars)	'		$0.02		$1.21		$0.04
Earnings Per Share (dollars)	$1.51		$1.53		$4.19		$3.76
[1]	Net of provision for income taxes on discontinued operations: $-, $7, $5, $15

Debt_Narrative_Details

Debt (Narrative) (Details) (USD $)	6 Months Ended			6 Months Ended	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2013
		Revolving Credit Facility [Member]	Revolving Credit Facility [Member]	Trade Receivables Securitization Facility [Member]	Trade Receivables Securitization Facility [Member]	Phillips 66 Partners LP [Member]	Phillips 66 Partners LP [Member]	Phillips 66 Partners LP [Member]
						Revolving Credit Facility [Member]	Revolving Credit Facility [Member]	Revolving Credit Facility [Member]
Debt Instrument [Line Items]	'	'	'	'	'	'	'	'
Amount of direct outstanding borrowings under revolving credit agreement	'	$0	$0	'	'	$0	$0	'
Amount of direct outstanding borrowings under trade receivables securitization	'	'	'	0	0	'	'	'
Borrowing capacity under revolving credit agreement	'	4,500,000,000	'	'	'	'	'	250,000,000
Borrowing capacity under trade receivables securitization facility	'	'	'	696,000,000	'	'	'	'
Letters of credit issued	1,148,000,000	51,000,000	51,000,000	0	26,000,000	'	'	'
Aggregate total capacity available under these facilities	5,400,000,000	'	'	'	'	'	'	'
Debt classified as long-term debt	$800,000,000	'	'	'	'	'	'	'

Guarantees_Narrative_Details

Guarantees (Narrative) (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2014	Jun. 30, 2014	Jun. 30, 2014	Jun. 30, 2014	Apr. 30, 2012
In Millions, unless otherwise specified			Residual Value Guarantees [Member]	Other Guarantees [Member]	Indemnifications [Member]	Merey Sweeny [Member]	Merey Sweeny [Member]
						Guarantees of Joint Venture Debt [Member]	Guarantees of Joint Venture Debt [Member]
Guarantees (Textual) [Abstract]	'	'	'	'	'	'	'
Percentage of guarantee	'	'	'	'	'	'	100.00%
Stated interest rate of senior notes issued by MSLP, percentage	'	'	'	'	'	8.85%	8.85%
Maximum potential amount of future payments under the guarantees	'	'	$228	$311	'	$203	'
Remaining terms in years of guarantees outstanding	'	'	'	'10 years	'	'	'
Carrying amount of indemnifications	'	'	'	'	243	'	'
Environmental accruals included in recorded carrying amount	$504	$492	'	'	$113	'	'

Contingencies_and_Commitments_

Contingencies and Commitments (Narrative) (Details) (USD $)	6 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Contingencies and Commitments (Textual) [Abstract]	'	'
Total environmental accrual	$504	$492
Expected years to incur a substantial amount of expenditures	'30 years	'
Letters of credit issued	1,148	'
Trade Receivables Securitization Facility [Member]	'	'
Contingencies and Commitments (Textual) [Abstract]	'	'
Letters of credit issued	0	26
Revolving Credit Facility [Member]	'	'
Contingencies and Commitments (Textual) [Abstract]	'	'
Letters of credit issued	$51	$51

Derivatives_and_Financial_Inst2

Derivatives and Financial Instruments (Summary of Commodity Derivative Assets and Liabilities) (Details) (Commodity Derivatives [Member], USD $)	Jun. 30, 2014		Dec. 31, 2013
In Millions, unless otherwise specified
Accounts and notes receivable [Member]	'		'
Fair value of commodity derivative assets and liabilities, without netting	'		'
Commodity derivative assets, fair value gross	'		$2	[1]
Prepaid Expenses and Other Current Assets [Member]	'		'
Fair value of commodity derivative assets and liabilities, without netting	'		'
Commodity derivative assets, fair value gross	781	[1]	592	[1]
Other Assets [Member]	'		'
Fair value of commodity derivative assets and liabilities, without netting	'		'
Commodity derivative assets, fair value gross	2	[1]	2	[1]
Other Accruals [Member]	'		'
Fair value of commodity derivative assets and liabilities, without netting	'		'
Commodity derivative liabilities, fair value gross	831	[1]	633	[1]
Other Liabilities and Deferred Credits [Member]	'		'
Fair value of commodity derivative assets and liabilities, without netting	'		'
Commodity derivative liabilities, fair value gross	$1	[1]	$1	[1]
[1]	Hedge accounting has not been used for any item in the table.

Derivatives_and_Financial_Inst3

Derivatives and Financial Instruments (Summary of Gains/(Losses) From Commodity Derivatives) (Details) (Commodity Derivatives [Member], USD $)	3 Months Ended				6 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014		Jun. 30, 2013
Sales and Other Operating Revenues [Member]	'		'		'		'
Summary of gains (losses) from commodity derivatives	'		'		'		'
Gains (losses) from commodity derivatives	($28)	[1]	$124	[1]	$29	[1]	$118	[1]
Equity in Earnings of Affiliates [Member]	'		'		'		'
Summary of gains (losses) from commodity derivatives	'		'		'		'
Gains (losses) from commodity derivatives	-2	[1]	2	[1]	-2	[1]	-1	[1]
Other Income [Member]	'		'		'		'
Summary of gains (losses) from commodity derivatives	'		'		'		'
Gains (losses) from commodity derivatives	1	[1]	24	[1]	15	[1]	27	[1]
Purchased Crude Oil and Products [Member]	'		'		'		'
Summary of gains (losses) from commodity derivatives	'		'		'		'
Gains (losses) from commodity derivatives	($45)	[1]	$74	[1]	($43)	[1]	$163	[1]
[1]	Hedge accounting has not been used for any item in the table.

Derivatives_and_Financial_Inst4

Derivatives and Financial Instruments (Summary of Outstanding Commodity Derivative Contracts) (Details)	Jun. 30, 2014	Dec. 31, 2013
	MMBbls	MMBbls
Commodity	'	'
Crude oil, refined products and NGL (millions of barrels)	-26	-9

Derivatives_and_Financial_Inst5

Derivatives and Financial Instruments (Narrative) (Details)	6 Months Ended	12 Months Ended
	Jun. 30, 2014	Dec. 31, 2013
Financial instruments and derivative contracts (Textual) [Abstract]	'	'
Estimated percentage of derivative contract volume expiring within twelve months	99.00%	99.00%
Payment terms of receivables	'30 days or less	'

Fair_Value_Measurements_Summar

Fair Value Measurements (Summary of Fair Value of Derivative Assets and Liabilities and Effect of Counterparty Netting) (Details) (USD $)	Jun. 30, 2014		Dec. 31, 2013
In Millions, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Effect of counterparty netting, commodity derivative assets	($717)		($546)
Rabbi trust assets	76		64
Total assets, fair value disclosure gross	859		660
Effect of counterparty netting, commodity derivative liabilities	-717		-546
Effect of collateral netting, commodity derivative liabilities	-89		-41
Difference in carrying value and fair value	-523		-262
Total liabilities, fair value disclosure gross	7,366		6,852
Net carrying value presented on balance sheet, commodity derivative liabilities and debt	6,037		6,003
Carrying (Reported) Amount, Fair Value Disclosure [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Rabbi trust assets	76		64
Net carrying value presented on balance sheet, commodity derivative assets and investments	142		114
Floating Rate Debt [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Debt excluding capital leases, fair value gross	52		50
Net carrying value presented on balance sheet, debt	52		50
Fixed Rate Debt Excluding Capital Leases [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Debt excluding capital leases, fair value gross	6,482	[1]	6,168	[1]
Net carrying value presented on balance sheet, debt	5,959	[1]	5,906	[1]
Difference in carrying value and fair value	-523	[1]	-262	[1]
Level 1 [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Rabbi trust assets	76		64
Total assets, fair value disclosure gross	639		291
Total liabilities, fair value disclosure gross	683		303
Level 1 [Member] | Floating Rate Debt [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Debt excluding capital leases, fair value gross	52		50
Level 2 [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Total assets, fair value disclosure gross	214		367
Total liabilities, fair value disclosure gross	6,682		6,548
Level 2 [Member] | Fixed Rate Debt Excluding Capital Leases [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Debt excluding capital leases, fair value gross	6,482	[1]	6,168	[1]
Level 3 [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Total assets, fair value disclosure gross	6		2
Total liabilities, fair value disclosure gross	1		1
Exchange-cleared Instruments [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Commodity derivative assets, fair value gross	715		559
Effect of counterparty netting, commodity derivative assets	-703		-538
Net carrying value presented on balance sheet, commodity derivative assets	12		21
Commodity derivative liabilities, fair value gross	792		579
Effect of counterparty netting, commodity derivative liabilities	-703		-538
Effect of collateral netting, commodity derivative liabilities	-89		-41
Exchange-cleared Instruments [Member] | Level 1 [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Commodity derivative assets, fair value gross	563		227
Commodity derivative liabilities, fair value gross	631		253
Exchange-cleared Instruments [Member] | Level 2 [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Commodity derivative assets, fair value gross	152		332
Commodity derivative liabilities, fair value gross	161		326
OTC Instruments [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Commodity derivative assets, fair value gross	38		10
Effect of counterparty netting, commodity derivative assets	-13		-8
Net carrying value presented on balance sheet, commodity derivative assets	25		2
Commodity derivative liabilities, fair value gross	28		11
Effect of counterparty netting, commodity derivative liabilities	-13		-8
Net carrying value presented on balance sheet, commodity derivative liabilities	15		3
OTC Instruments [Member] | Level 2 [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Commodity derivative assets, fair value gross	38		10
Commodity derivative liabilities, fair value gross	28		11
Physical Forward Contracts [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Commodity derivative assets, fair value gross	30	[2]	27	[2]
Effect of counterparty netting, commodity derivative assets	-1	[2]	'
Net carrying value presented on balance sheet, commodity derivative assets	29	[2]	27	[2]
Commodity derivative liabilities, fair value gross	12	[2]	44	[2]
Effect of counterparty netting, commodity derivative liabilities	-1	[2]	'
Net carrying value presented on balance sheet, commodity derivative liabilities	11	[2]	44	[2]
Physical Forward Contracts [Member] | Level 2 [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Commodity derivative assets, fair value gross	24	[2]	25	[2]
Commodity derivative liabilities, fair value gross	11	[2]	43	[2]
Physical Forward Contracts [Member] | Level 3 [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Commodity derivative assets, fair value gross	6	[2]	2	[2]
Commodity derivative liabilities, fair value gross	$1	[2]	$1
[1]	We carry fixed-rate debt on the balance sheet at amortized cost.
[2]	Physical forward contracts may have a larger value on the balance sheet than disclosed in the fair value hierarchy when the remaining contract term at the reporting date is greater than 12 months and the short-term portion is an asset while the long-term portion is a liability, or vice versa.

Fair_Value_Measurements_Summar1

Fair Value Measurements (Summary of Nonrecurring Fair Value Measurements) (Details) (USD $)	6 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'
Before-tax loss on net properties, plants and equipment (held for use)	$27
Fair Value, Measurements, Nonrecurring [Member]	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'
Net properties, plants and equipment (held for use)	22	[1]
Fair Value, Measurements, Nonrecurring [Member] | Level 1 [Member]	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'
Net properties, plants and equipment (held for use)	$22
[1]	Represents the fair value at the time of the impairment.

Fair_Value_Measurements_Narrat

Fair Value Measurements (Narrative) (Details) (USD $)	6 Months Ended			6 Months Ended		6 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2013	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2013	Jun. 30, 2013
				M&S Segment [Member]	M&S Segment [Member]	M&S Segment [Member]	Corporate Property [Member]
						Composite Graphite Business [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'	'	'	'	'	'
Carrying amount of net PP&E held for use	'	$16,092	$15,398	$734	$646	$18	$31
Before-tax loss on net properties, plants and equipment (held for use)	27	'	'	15	'	18	9
Fair value of net PP&E held for use	'	'	'	'	'	'	$22

Employee_Benefit_Plans_Summary

Employee Benefit Plans (Summary of Components of Net Periodic Benefit Cost) (Details) (USD $)	3 Months Ended		6 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
United States Pension Plans of U S Entity, Defined Benefit [Member]	'	'	'	'
Components of Net Periodic Benefit Cost	'	'	'	'
Service cost	$31	$31	$61	$62
Interest cost	27	23	54	46
Expected return on plan assets	-35	-30	-71	-60
Amortization of prior service cost (credit)	'	1	1	1
Recognized net actuarial loss (gain)	10	21	20	42
Total net periodic benefit cost	33	46	65	91
Foreign Pension Plans, Defined Benefit [Member]	'	'	'	'
Components of Net Periodic Benefit Cost	'	'	'	'
Service cost	10	9	20	18
Interest cost	9	8	18	16
Expected return on plan assets	-10	-8	-19	-15
Amortization of prior service cost (credit)	'	-1	-1	-1
Recognized net actuarial loss (gain)	3	3	6	8
Total net periodic benefit cost	12	11	24	26
Other Postretirement Benefit Plans, Defined Benefit [Member]	'	'	'	'
Components of Net Periodic Benefit Cost	'	'	'	'
Service cost	2	2	4	4
Interest cost	2	1	4	3
Amortization of prior service cost (credit)	-1	-1	-1	-1
Recognized net actuarial loss (gain)	'	'	-1	'
Total net periodic benefit cost	$3	$2	$6	$6

Employee_Benefit_Plans_Narrati

Employee Benefit Plans (Narrative) (Details) (USD $)	6 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014
United States Pension Plans of U S Entity, Defined Benefit [Member]	'
Employee Benefit Plans (Textual) [Abstract]	'
Company contributions to plans	$163
Foreign Pension Plans, Defined Benefit [Member]	'
Employee Benefit Plans (Textual) [Abstract]	'
Company contributions to plans	31
Additional contributions expected to be made in 2014	$50

Accumulated_Other_Comprehensiv2

Accumulated Other Comprehensive Income (Loss) (Summary of the Components of Accumulated Other Comprehensive Income (Loss) and Detail on Reclassifications) (Details) (USD $)	3 Months Ended		6 Months Ended			12 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014		Jun. 30, 2013	Dec. 31, 2013
Changes in accumulated other comprehensive income (loss) by component	'	'	'		'	'
Accumulated other comprehensive income (loss), beginning balance	'	'	$37		($314)	($314)
Other comprehensive income (loss) before reclassifications	'	'	132		'	-285
Actuarial losses	'	'	17	[1]	'	33	[1]
Other Comprehensive Income (Loss), Net of Tax	109	56	149		-252	-252
Accumulated other comprehensive income (loss), ending balance	186	-566	186		-566	37
Defined Benefit Plans [Member]	'	'	'		'	'
Changes in accumulated other comprehensive income (loss) by component	'	'	'		'	'
Accumulated other comprehensive income (loss), beginning balance	'	'	-404		-778	-778
Other comprehensive income (loss) before reclassifications	'	'	4		'	-5
Actuarial losses	'	'	17	[2]	'	33	[2]
Other Comprehensive Income (Loss), Net of Tax	'	'	21		'	28
Accumulated other comprehensive income (loss), ending balance	-383	-750	-383		-750	-404
Foreign Curency Translation [Member]	'	'	'		'	'
Changes in accumulated other comprehensive income (loss) by component	'	'	'		'	'
Accumulated other comprehensive income (loss), beginning balance	'	'	443		466	466
Other comprehensive income (loss) before reclassifications	'	'	128		'	-281
Other Comprehensive Income (Loss), Net of Tax	'	'	128		'	-281
Accumulated other comprehensive income (loss), ending balance	571	185	571		185	443
Hedging [Member]	'	'	'		'	'
Changes in accumulated other comprehensive income (loss) by component	'	'	'		'	'
Accumulated other comprehensive income (loss), beginning balance	'	'	-2		-2	-2
Other comprehensive income (loss) before reclassifications	'	'	0		'	1
Other Comprehensive Income (Loss), Net of Tax	'	'	0		'	1
Accumulated other comprehensive income (loss), ending balance	($2)	($1)	($2)		($1)	($2)
[1]	There were no significant reclassifications related to foreign currency translation or hedging.
[2]	These accumulated other comprehensive income (loss) components are included in the computation of net periodic benefit cost (see Note 16—Employee Benefit Plans, for additional information).

Cash_Flow_Information_Summary_

Cash Flow Information (Summary of Cash Flow Information) (Details) (USD $)	6 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Supplemental Cash Flow Information [Abstract]	'	'
Interest	$123	$132
Income taxes	$1,093	$896

Cash_Flow_Information_Narrativ

Cash Flow Information (Narrative) (Details) (Phillips Specialty Products Inc [Member], Marketing and Specialties [Member], USD $)	2 Months Ended
Share data in Millions, unless otherwise specified	Feb. 25, 2014
Phillips Specialty Products Inc [Member] | Marketing and Specialties [Member]	'
Noncash or Part Noncash Divestitures [Line Items]	'
Noncash portion of net assets surrendered in exchange	$204,000,000
Number of shares of Phillips 66 common stock received in exchange	17.4
Fair value of shares at time of the exchange	$1,350,000,000

Related_Party_Transactions_Sum

Related Party Transactions (Summary of Significant Related Party Transactions) (Details) (USD $)	3 Months Ended				6 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014		Jun. 30, 2013
Significant transactions with related parties	'		'		'		'
Operating revenues and other income	$1,586	[1]	$2,050	[1]	$3,653	[1]	$3,799	[1]
Purchases	4,535	[2]	4,474	[2]	8,526	[2]	8,761	[2]
Operating expenses and selling, general and administrative expenses	41	[3]	28	[3]	76	[3]	52	[3]
Interest expense	$2	[4]	$2	[4]	$4	[4]	$4	[4]
[1]	We sold crude oil to the Malaysian Refining Company Sdn. Bdh. (MRC). NGL and other petrochemical feedstocks, along with solvents, were sold to CPChem, and gas oil and hydrogen feedstocks were sold to Excel. Certain feedstocks and intermediate products were sold to WRB. We also acted as agent for WRB in supplying other crude oil and feedstocks, wherein the transactional amounts did not impact operating revenues. In addition, we charged several of our affiliates, including CPChem and MSLP, for the use of common facilities, such as steam generators, waste and water treaters, and warehouse facilities.
[2]	We purchased refined products from WRB. We also acted as agent for WRB in distributing asphalt and solvents, wherein the transactional amounts did not impact purchases. We purchased natural gas and NGL from DCP Midstream, LLC (DCP Midstream) and CPChem for use in our refinery processes and other feedstocks from various affiliates. We purchased refined products from MRC. We also paid fees to various pipeline equity companies for transporting finished refined products. In addition, we paid a price upgrade to MSLP for heavy crude processing. We purchased base oils and fuel products from Excel for use in our refining and specialty businesses.
[3]	We paid utility, commission and processing fees to various affiliates.
[4]	We incurred interest expense on a note payable to MSLP.

Segment_Disclosures_and_Relate2

Segment Disclosures and Related Information (Summary of Sales and Other Operating Revenues, Net Income (Loss) Attributable to Phillips 66 and Total Assets by Operating Segment) (Details) (USD $)	3 Months Ended				6 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014		Jun. 30, 2013		Dec. 31, 2013
Analysis of results by operating segment	'		'		'		'		'
Sales and other operating revenues	$45,549	[1]	$43,190	[1]	$85,832	[1]	$84,401	[1]	'
Net Income (Loss) Attributable to Phillips 66	863		958		2,435		2,365		'
Analysis of results of assets by operating segment	'		'		'		'		'
Total Assets	50,822		'		50,822		'		49,798
Midstream [Member]	'		'		'		'		'
Analysis of results by operating segment	'		'		'		'		'
Sales and other operating revenues	881		1,271		2,744		2,667		'
Net Income (Loss) Attributable to Phillips 66	108		90		296		201		'
Analysis of results of assets by operating segment	'		'		'		'		'
Total Assets	5,803		'		5,803		'		5,485
Chemicals [Member]	'		'		'		'		'
Analysis of results by operating segment	'		'		'		'		'
Sales and other operating revenues	2		2		4		4		'
Net Income (Loss) Attributable to Phillips 66	324		181		640		463		'
Analysis of results of assets by operating segment	'		'		'		'		'
Total Assets	4,930		'		4,930		'		4,377
Refining [Member]	'		'		'		'		'
Analysis of results by operating segment	'		'		'		'		'
Sales and other operating revenues	14,835		12,484		26,492		24,389		'
Net Income (Loss) Attributable to Phillips 66	390		455		696		1,359		'
Analysis of results of assets by operating segment	'		'		'		'		'
Total Assets	26,946		'		26,946		'		26,046
Marketing and Specialties [Member]	'		'		'		'		'
Analysis of results by operating segment	'		'		'		'		'
Sales and other operating revenues	29,823		29,424		56,577		57,326		'
Net Income (Loss) Attributable to Phillips 66	162		344		299		534		'
Analysis of results of assets by operating segment	'		'		'		'		'
Total Assets	7,380		'		7,380		'		7,331
Corporate and Other [Member]	'		'		'		'		'
Analysis of results by operating segment	'		'		'		'		'
Sales and other operating revenues	8		9		15		15		'
Net Income (Loss) Attributable to Phillips 66	-121		-126		-202		-221		'
Analysis of results of assets by operating segment	'		'		'		'		'
Total Assets	5,763		'		5,763		'		6,348
Operating Segments [Member] | Midstream [Member]	'		'		'		'		'
Analysis of results by operating segment	'		'		'		'		'
Sales and other operating revenues	1,155		1,481		3,310		3,109		'
Operating Segments [Member] | Refining [Member]	'		'		'		'		'
Analysis of results by operating segment	'		'		'		'		'
Sales and other operating revenues	33,628		30,994		62,843		60,756		'
Operating Segments [Member] | Marketing and Specialties [Member]	'		'		'		'		'
Analysis of results by operating segment	'		'		'		'		'
Sales and other operating revenues	30,489		29,729		57,535		57,909		'
Intersegment Eliminations [Member] | Midstream [Member]	'		'		'		'		'
Analysis of results by operating segment	'		'		'		'		'
Sales and other operating revenues	-274		-210		-566		-442		'
Intersegment Eliminations [Member] | Refining [Member]	'		'		'		'		'
Analysis of results by operating segment	'		'		'		'		'
Sales and other operating revenues	-18,793		-18,510		-36,351		-36,367		'
Intersegment Eliminations [Member] | Marketing and Specialties [Member]	'		'		'		'		'
Analysis of results by operating segment	'		'		'		'		'
Sales and other operating revenues	-666		-305		-958		-583		'
Discontinued Operations [Member]	'		'		'		'		'
Analysis of results by operating segment	'		'		'		'		'
Net Income (Loss) Attributable to Phillips 66	'		14		706		29		'
Analysis of results of assets by operating segment	'		'		'		'		'
Discontinued operations	'		'		'		'		$211
[1]	Includes excise taxes on petroleum products sales: $3,743, $3,428, $7,265, $6,686

Segment_Disclosures_and_Relate3

Segment Disclosures and Related Information (Narrative) (Details)	1 Months Ended	6 Months Ended
	Mar. 31, 2014	Jun. 30, 2014
Segment Disclosures And Related Information (Textual) [Abstract]	'	'
Number of refineries in Refining segment	1	15
DCP Midstream [Member]	'	'
Segment Disclosures And Related Information (Textual) [Abstract]	'	'
Percentage of ownership interest	'	50.00%
CP Chem [Member]	'	'
Segment Disclosures And Related Information (Textual) [Abstract]	'	'
Percentage of ownership interest	'	50.00%
Refining [Member] | Excel and Jupiter Sulphur, LLC [Member]	'	'
Segment Disclosures And Related Information (Textual) [Abstract]	'	'
Number of equity investments moved from Refining segment to M&S segment	'	-2
Marketing and Specialties [Member] | Excel and Jupiter Sulphur, LLC [Member]	'	'
Segment Disclosures And Related Information (Textual) [Abstract]	'	'
Number of equity investments moved from Refining segment to M&S segment	'	2

Income_Taxes_Narrative_Details

Income Taxes (Narrative) (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Income Taxes (Textual) [Abstract]	'	'	'	'
Effective tax rate, percent	36.00%	35.00%	34.00%	33.00%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	'	'	35.00%	'

Phillips_66_Partners_LP_Narrat

Phillips 66 Partners LP (Narrative) (Details) (USD $)	Jun. 30, 2014	Mar. 01, 2014	Dec. 31, 2013	Jul. 27, 2013	Jul. 27, 2013	Jun. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Mar. 01, 2014	Mar. 31, 2014	Mar. 31, 2014
In Millions, except Share data, unless otherwise specified		sphere		Phillips 66 Partners LP [Member]	Phillips 66 Partners LP [Member]	Phillips 66 Partners LP [Member]	Noncontrolling Interest [Member]	Phillips 66 Partners LP [Member]	Phillips 66 Partners LP [Member]	Common Units [Member]	General Partner Units [Member]
							Phillips 66 Partners LP [Member]			Phillips 66 Partners LP [Member]
Subsidiary or Equity Method Investee [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Total consideration for contributed assets	'	'	'	'	'	'	'	'	$700	'	'
Cash received	'	'	'	'	'	'	'	'	400	'	'
Units received	'	'	'	'	'	'	'	'	'	3,530,595	72,053
Notes receivable received	'	'	'	'	'	'	'	160	'	'	'
Number of storage spheres	'	2	'	'	'	'	'	'	'	'	'
Limited partnership interest in Phillips 66 Partners, percentage	'	'	'	73.00%	'	'	'	'	'	'	'
General partnership interest in Phillips 66 Partners, percentage	'	'	'	2.00%	'	'	'	'	'	'	'
Limited partner interest in Phillips 66 Partners owned by public, percentage	'	'	'	'	25.00%	'	'	'	'	'	'
Public's ownership interest in Phillips 66 Partners reflected as a noncontrolling interest	444	'	442	'	'	'	412	'	'	'	'
Net properties, plants and equipment	$16,092	'	$15,398	'	'	$275	'	'	'	'	'

Condensed_Consolidating_Financ2

Condensed Consolidating Financial Information (Condensed Consolidating Statement of Income) (Details) (USD $)	3 Months Ended				6 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014		Jun. 30, 2013
Revenues and Other Income	'		'		'		'
Sales and other operating revenues	$45,549	[1]	$43,190	[1]	$85,832	[1]	$84,401	[1]
Equity in earnings of affiliates	764		618		1,542		1,657
Net gain on dispositions	9		41		16		42
Other income (loss)	17		49		48		72
Total Revenues and Other Income	46,339		43,898		87,438		86,172
Cost And Expenses	'		'		'		'
Purchased crude oil and products	39,316		37,257		73,697		72,500
Operating expenses	1,077		1,032		2,167		2,010
Selling, general and administrative expenses	412		368		814		695
Depreciation and amortization	239		229		473		471
Impairments	3		1		4		25
Taxes other than income taxes	3,832	[1]	3,501	[1]	7,470	[1]	6,825	[1]
Accretion on discounted liabilities	6		6		12		12
Interest and debt expense	66		69		134		139
Foreign currency transaction (gains) losses	29		-18		10		-16
Total Costs and Expenses	44,980		42,445		84,781		82,661
Income from continuing operations before income taxes	1,359		1,453		2,657		3,511
Provision (benefit) for income taxes	487		507		913		1,170
Income (Loss) From Continuing Operations	872		946		1,744		2,341
Income from discontinued operations	'	[2]	14	[2],[3]	706	[2],[4]	29	[2],[5]
Net income	872		960		2,450		2,370
Less: net income attributable to noncontrolling interests	9		2		15		5
Net Income Attributable to Phillips 66	863		958		2,435		2,365
Comprehensive Income	981		1,016		2,599		2,118
Phillips 66 [Member]	'		'		'		'
Revenues and Other Income	'		'		'		'
Equity in earnings of affiliates	908		1,003		1,830		2,455
Other income (loss)	'		-2		'		-2
Total Revenues and Other Income	908		1,001		1,830		2,453
Cost And Expenses	'		'		'		'
Operating expenses	'		'		2		'
Selling, general and administrative expenses	2		1		5		3
Interest and debt expense	67		67		133		134
Total Costs and Expenses	69		68		140		137
Income from continuing operations before income taxes	839		933		1,690		2,316
Provision (benefit) for income taxes	-24		-25		-49		-49
Income (Loss) From Continuing Operations	863		958		1,739		2,365
Income from discontinued operations	'		'		696	[4]	'
Net income	863		958		2,435		2,365
Net Income Attributable to Phillips 66	863		958		2,435		2,365
Comprehensive Income	972		1,013		2,584		2,113
Phillips 66 Company [Member]	'		'		'		'
Revenues and Other Income	'		'		'		'
Equity in earnings of affiliates	604		637		1,450		1,776
Net gain on dispositions	'		40		'		41
Other income (loss)	18		34		40		49
Total Revenues and Other Income	31,824		30,458		60,209		59,740
Cost And Expenses	'		'		'		'
Purchased crude oil and products	27,670		26,420		52,054		51,172
Operating expenses	862		821		1,765		1,620
Selling, general and administrative expenses	316		264		602		470
Depreciation and amortization	183		177		363		360
Impairments	1		'		2		-3
Taxes other than income taxes	1,416		1,295		2,717		2,504
Accretion on discounted liabilities	4		5		9		10
Interest and debt expense	2		3		6		6
Foreign currency transaction (gains) losses	'		-1		'		'
Total Costs and Expenses	30,454		28,984		57,518		56,139
Income from continuing operations before income taxes	1,370		1,474		2,691		3,601
Provision (benefit) for income taxes	462		471		861		1,146
Income (Loss) From Continuing Operations	908		1,003		1,830		2,455
Net income	908		1,003		1,830		2,455
Net Income Attributable to Phillips 66	908		1,003		1,830		2,455
Comprehensive Income	1,017		1,059		1,979		2,204
All Other Subsidiaries [Member]	'		'		'		'
Revenues and Other Income	'		'		'		'
Equity in earnings of affiliates	130		78		308		236
Net gain on dispositions	9		1		16		1
Other income (loss)	-1		17		8		25
Total Revenues and Other Income	21,242		19,481		39,181		38,054
Cost And Expenses	'		'		'		'
Purchased crude oil and products	18,358		16,747		33,296		32,527
Operating expenses	226		218		417		404
Selling, general and administrative expenses	117		126		255		268
Depreciation and amortization	56		52		110		111
Impairments	2		1		2		28
Taxes other than income taxes	2,416		2,206		4,753		4,321
Accretion on discounted liabilities	2		1		3		2
Interest and debt expense	8		1		13		5
Foreign currency transaction (gains) losses	29		-17		10		-16
Total Costs and Expenses	21,214		19,335		38,859		37,650
Income from continuing operations before income taxes	28		146		322		404
Provision (benefit) for income taxes	49		61		101		73
Income (Loss) From Continuing Operations	-21		85		221		331
Income from discontinued operations	'		14	[3]	10	[4]	29	[5]
Net income	-21		99		231		360
Less: net income attributable to noncontrolling interests	9		2		15		5
Net Income Attributable to Phillips 66	-30		97		216		355
Comprehensive Income	81		141		365		87
Reportable Legal Entities [Member] | Phillips 66 Company [Member]	'		'		'		'
Revenues and Other Income	'		'		'		'
Sales and other operating revenues	30,145		29,335		57,384		56,972
Reportable Legal Entities [Member] | All Other Subsidiaries [Member]	'		'		'		'
Revenues and Other Income	'		'		'		'
Sales and other operating revenues	15,404		13,855		28,448		27,429
Consolidating Adjustments [Member]	'		'		'		'
Revenues and Other Income	'		'		'		'
Sales and other operating revenues	-6,757		-5,942		-11,736		-11,265
Equity in earnings of affiliates	-878		-1,100		-2,046		-2,810
Total Revenues and Other Income	-7,635		-7,042		-13,782		-14,075
Cost And Expenses	'		'		'		'
Purchased crude oil and products	-6,712		-5,910		-11,653		-11,199
Operating expenses	-11		-7		-17		-14
Selling, general and administrative expenses	-23		-23		-48		-46
Interest and debt expense	-11		-2		-18		-6
Total Costs and Expenses	-6,757		-5,942		-11,736		-11,265
Income from continuing operations before income taxes	-878		-1,100		-2,046		-2,810
Income (Loss) From Continuing Operations	-878		-1,100		-2,046		-2,810
Net income	-878		-1,100		-2,046		-2,810
Net Income Attributable to Phillips 66	-878		-1,100		-2,046		-2,810
Comprehensive Income	-1,089		-1,197		-2,329		-2,286
Consolidating Adjustments [Member] | Phillips 66 Company [Member]	'		'		'		'
Revenues and Other Income	'		'		'		'
Sales and other operating revenues	-1,057		-412		-1,335		-902
Consolidating Adjustments [Member] | All Other Subsidiaries [Member]	'		'		'		'
Revenues and Other Income	'		'		'		'
Sales and other operating revenues	($5,700)		($5,530)		($10,401)		($10,363)
[1]	Includes excise taxes on petroleum products sales: $3,743, $3,428, $7,265, $6,686
[2]	Net of provision for income taxes on discontinued operations: $-, $7, $5, $15
[3]	Net of provision for income taxes on discontinued operations: $-, $-, $7, $-, $7
[4]	Net of provision for income taxes on discontinued operations: $-, $-, $5, $-, $5
[5]	Net of provision for income taxes on discontinued operations: $-, $-, $15, $-, $15

Condensed_Consolidating_Financ3

Condensed Consolidating Financial Information (Condensed Consolidating Balance Sheet) (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Assets [Abstract]	'	'	'	'
Cash and cash equivalents	$4,956	$5,400	$4,220	$3,474
Accounts and notes receivable	10,110	9,632	'	'
Inventories	4,928	3,354	'	'
Prepaid expenses and other current assets	611	851	'	'
Total Current Assets	20,605	19,237	'	'
Investments and long-term receivables	10,038	11,220	'	'
Net properties, plants and equipment	16,092	15,398	'	'
Goodwill	3,140	3,096	'	'
Intangibles	735	698	'	'
Other assets	212	149	'	'
Total Assets	50,822	49,798	'	'
Liabilities and Equity [Abstract]	'	'	'	'
Accounts payable	12,849	11,090	'	'
Short-term debt	38	24	'	'
Accrued income and other taxes	1,085	872	'	'
Employee benefit obligations	304	476	'	'
Other accruals	844	469	'	'
Total Current Liabilities	15,120	12,931	'	'
Long-term debt	6,174	6,131	'	'
Asset retirement obligations and accrued environmental costs	713	700	'	'
Deferred income taxes	5,686	6,125	'	'
Employee benefit obligations	825	921	'	'
Other liabilities and deferred credits	349	598	'	'
Total Liabilities	28,867	27,406	'	'
Common stock	13,784	16,291	'	'
Retained earnings	7,541	5,622	'	'
Accumulated other comprehensive income	186	37	-566	-314
Noncontrolling interests	444	442	'	'
Total Liabilities and Equity	50,822	49,798	'	'
Phillips 66 [Member]	'	'	'	'
Assets [Abstract]	'	'	'	'
Accounts and notes receivable	10	9	'	'
Prepaid expenses and other current assets	8	10	'	'
Total Current Assets	18	19	'	'
Investments and long-term receivables	34,531	33,178	'	'
Other assets	36	40	'	'
Total Assets	34,585	33,237	'	'
Liabilities and Equity [Abstract]	'	'	'	'
Accounts payable	'	1	'	'
Short-term debt	-1	'	'	'
Other accruals	49	49	'	'
Total Current Liabilities	48	50	'	'
Long-term debt	5,796	5,796	'	'
Other liabilities and deferred credits	7,201	5,441	'	'
Total Liabilities	13,045	11,287	'	'
Common stock	13,784	16,291	'	'
Retained earnings	7,570	5,622	'	'
Accumulated other comprehensive income	186	37	'	'
Total Liabilities and Equity	34,585	33,237	'	'
Phillips 66 Company [Member]	'	'	'	'
Assets [Abstract]	'	'	'	'
Cash and cash equivalents	1,982	2,162	2,539	2,410
Accounts and notes receivable	2,924	2,174	'	'
Inventories	2,863	1,962	'	'
Prepaid expenses and other current assets	292	368	'	'
Total Current Assets	8,061	6,666	'	'
Investments and long-term receivables	27,363	27,417	'	'
Net properties, plants and equipment	12,053	12,031	'	'
Goodwill	3,098	3,094	'	'
Intangibles	693	694	'	'
Other assets	159	112	'	'
Total Assets	51,427	50,014	'	'
Liabilities and Equity [Abstract]	'	'	'	'
Accounts payable	7,729	7,507	'	'
Short-term debt	19	18	'	'
Accrued income and other taxes	484	250	'	'
Employee benefit obligations	269	422	'	'
Other accruals	143	178	'	'
Total Current Liabilities	8,644	8,375	'	'
Long-term debt	145	152	'	'
Asset retirement obligations and accrued environmental costs	533	527	'	'
Deferred income taxes	4,586	5,045	'	'
Employee benefit obligations	630	724	'	'
Other liabilities and deferred credits	2,411	2,155	'	'
Total Liabilities	16,949	16,978	'	'
Common stock	25,401	25,938	'	'
Retained earnings	8,891	7,061	'	'
Accumulated other comprehensive income	186	37	'	'
Total Liabilities and Equity	51,427	50,014	'	'
All Other Subsidiaries [Member]	'	'	'	'
Assets [Abstract]	'	'	'	'
Cash and cash equivalents	2,974	3,238	1,681	1,064
Accounts and notes receivable	7,948	8,130	'	'
Inventories	2,065	1,392	'	'
Prepaid expenses and other current assets	311	473	'	'
Total Current Assets	13,298	13,233	'	'
Investments and long-term receivables	7,958	7,135	'	'
Net properties, plants and equipment	4,039	3,367	'	'
Goodwill	42	2	'	'
Intangibles	42	4	'	'
Other assets	21	1	'	'
Total Assets	25,400	23,742	'	'
Liabilities and Equity [Abstract]	'	'	'	'
Accounts payable	5,892	4,263	'	'
Short-term debt	20	6	'	'
Accrued income and other taxes	601	622	'	'
Employee benefit obligations	35	54	'	'
Other accruals	652	242	'	'
Total Current Liabilities	7,200	5,187	'	'
Long-term debt	233	183	'	'
Asset retirement obligations and accrued environmental costs	180	173	'	'
Deferred income taxes	1,104	1,084	'	'
Employee benefit obligations	195	197	'	'
Other liabilities and deferred credits	6,374	6,691	'	'
Total Liabilities	15,286	13,515	'	'
Common stock	8,006	8,302	'	'
Retained earnings	1,210	1,163	'	'
Accumulated other comprehensive income	454	320	'	'
Noncontrolling interests	444	442	'	'
Total Liabilities and Equity	25,400	23,742	'	'
Consolidating Adjustments [Member]	'	'	'	'
Assets [Abstract]	'	'	'	'
Accounts and notes receivable	-772	-681	'	'
Total Current Assets	-772	-681	'	'
Investments and long-term receivables	-59,814	-56,510	'	'
Other assets	-4	-4	'	'
Total Assets	-60,590	-57,195	'	'
Liabilities and Equity [Abstract]	'	'	'	'
Accounts payable	-772	-681	'	'
Total Current Liabilities	-772	-681	'	'
Deferred income taxes	-4	-4	'	'
Other liabilities and deferred credits	-15,637	-13,689	'	'
Total Liabilities	-16,413	-14,374	'	'
Common stock	-33,407	-34,240	'	'
Retained earnings	-10,130	-8,224	'	'
Accumulated other comprehensive income	-640	-357	'	'
Total Liabilities and Equity	($60,590)	($57,195)	'	'

Condensed_Consolidating_Financ4

Condensed Consolidating Financial Information (Condensed Consolidating Statement of Cash Flows) (Details) (USD $)	6 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014		Jun. 30, 2013
Condensed Financial Statements, Captions [Line Items]	'		'
Net cash provided by continuing operating activities	$2,226		$3,145
Net cash provided by discontinued operations	2		36
Net Cash Provided by Operating Activities	2,228		3,181
Capital expenditures and investments	-1,133		-748
Proceeds from asset dispositions	657	[1]	69	[1]
Advances/loans—related parties	-3		'
Collection of advances/loans—related parties	'		100
Other	34		'
Net cash used in continuing investing activities	-445		-579
Net cash used in discontinued operations	-2		-10
Net Cash Provided by (Used in) Investing Activities	-447		-589
Repayment of debt	-17		-505
Issuance of common stock	-12		-3
Repurchase of common stock	-1,256		-928
Share exchange—PSPI transaction	-450		'
Dividends paid on common stock	-510		-386
Distributions to noncontrolling interests	-13		-1
Other	25		-3
Net cash provided by (used in) continuing financing activities	-2,233		-1,826
Net Cash Provided by (Used in) Financing Activities	-2,233		-1,826
Effect of Exchange Rate Changes on Cash and Cash Equivalents	8		-20
Net Change in Cash and Cash Equivalents	-444		746
Cash and cash equivalents at beginning of period	5,400		3,474
Cash and Cash Equivalents at End of Period	4,956		4,220
Phillips 66 [Member]	'		'
Condensed Financial Statements, Captions [Line Items]	'		'
Net cash provided by continuing operating activities	24		23
Net Cash Provided by Operating Activities	24		23
Intercompany lending activities	2,211		1,800
Advances/loans—related parties	'		'
Net cash used in continuing investing activities	2,211		1,800
Net Cash Provided by (Used in) Investing Activities	2,211		1,800
Repayment of debt	'		-500
Issuance of common stock	-12		-3
Repurchase of common stock	-1,256		-928
Share exchange—PSPI transaction	-450		'
Dividends paid on common stock	-510		-386
Other	-7		-6
Net cash provided by (used in) continuing financing activities	-2,235		-1,823
Net Cash Provided by (Used in) Financing Activities	-2,235		-1,823
Phillips 66 Company [Member]	'		'
Condensed Financial Statements, Captions [Line Items]	'		'
Net cash provided by continuing operating activities	1,109		2,274
Net Cash Provided by Operating Activities	1,109		2,274
Capital expenditures and investments	-1,098		-404
Proceeds from asset dispositions	998		53
Intercompany lending activities	-1,122		-1,793
Advances/loans—related parties	'		'
Other	-91		'
Net cash used in continuing investing activities	-1,313		-2,144
Net Cash Provided by (Used in) Investing Activities	-1,313		-2,144
Repayment of debt	-7		-5
Issuance of common stock	'		'
Repurchase of common stock	'		'
Dividends paid on common stock	'		'
Other	31		4
Net cash provided by (used in) continuing financing activities	24		-1
Net Cash Provided by (Used in) Financing Activities	24		-1
Net Change in Cash and Cash Equivalents	-180		129
Cash and cash equivalents at beginning of period	2,162		2,410
Cash and Cash Equivalents at End of Period	1,982		2,539
All Other Subsidiaries [Member]	'		'
Condensed Financial Statements, Captions [Line Items]	'		'
Net cash provided by continuing operating activities	1,222		918
Net cash provided by discontinued operations	2		36
Net Cash Provided by Operating Activities	1,224		954
Capital expenditures and investments	-753		-364
Proceeds from asset dispositions	59		16
Intercompany lending activities	-1,089		-7
Advances/loans—related parties	-3		'
Collection of advances/loans—related parties	'		100
Other	125		'
Net cash used in continuing investing activities	-1,661		-255
Net cash used in discontinued operations	-2		-10
Net Cash Provided by (Used in) Investing Activities	-1,663		-265
Repayment of debt	-10		'
Dividends paid on common stock	-102		-70
Distributions to noncontrolling interests	-13		-1
Other	581		19
Net cash provided by (used in) continuing financing activities	167		-52
Net Cash Provided by (Used in) Financing Activities	167		-52
Effect of Exchange Rate Changes on Cash and Cash Equivalents	8		-20
Net Change in Cash and Cash Equivalents	-264		617
Cash and cash equivalents at beginning of period	3,238		1,064
Cash and Cash Equivalents at End of Period	2,974		1,681
Consolidating Adjustments [Member]	'		'
Condensed Financial Statements, Captions [Line Items]	'		'
Net cash provided by continuing operating activities	-129		-70
Net Cash Provided by Operating Activities	-129		-70
Capital expenditures and investments	718		20
Proceeds from asset dispositions	-400		'
Advances/loans—related parties	'		'
Net cash used in continuing investing activities	318		20
Net Cash Provided by (Used in) Investing Activities	318		20
Dividends paid on common stock	102		70
Distributions to controlling interests	289		'
Other	-580		-20
Net cash provided by (used in) continuing financing activities	-189		50
Net Cash Provided by (Used in) Financing Activities	-189		50
Consolidating Adjustments [Member] | All Other Subsidiaries [Member]	'		'
Condensed Financial Statements, Captions [Line Items]	'		'
Distributions to controlling interests	($289)		'
[1]	Includes return of investments in equity affiliates.

Condensed_Consolidating_Financ5

Condensed Consolidating Financial Information (Narrative) (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Senior notes issued by Phillips 66	$5,800,000,000	'	$5,800,000,000	'
Percentage of ownership in subsidiary	100.00%	'	100.00%	'
Net of provision for income taxes on discontinued operations	'	7,000,000	5,000,000	15,000,000
All Other Subsidiaries [Member]	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Net of provision for income taxes on discontinued operations	'	$7,000,000	$5,000,000	$15,000,000