ConocoPhillips (COP) 10-Q 5 May 15 2015 Q1 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	3 Months Ended
	Mar. 31, 2015
Document and Entity Information [Abstract]
Entity Registrant Name	CONOCOPHILLIPS
Entity Central Index Key	1163165
Document Type	10-Q
Document Period End Date	31-Mar-15
Amendment Flag	FALSE
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q1
Current Fiscal Year End Date	-19
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding	1,232,946,616
Trading Symbol	COP

Consolidated_Income_Statement

Consolidated Income Statement (USD $)	3 Months Ended
In Millions, except Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Revenues and Other Income
Sales and other operating revenues	$7,716	$15,415
Equity in earnings of affiliates	205	572
Gain on Dispositions	52	9
Other income	29	52
Total Revenues and Other Income	8,002	16,048
Costs and Expenses
Purchased commodities	3,237	7,127
Production and operating expenses	1,802	1,895
Selling, general and administrative expenses	159	182
Exploration expenses	482	296
Depreciation, depletion and amortization	2,131	1,892
Impairments	16	1
Taxes other than Income Taxes	224	651
Accretion on discounted liabilities	121	117
Interest and debt expense	202	171
Foreign currency transaction (gains) losses	-16	18
Total Costs and Expenses	8,358	12,350
Income from continuing operations before income taxes	-356	3,698
Provision for income taxes	-642	1,581
Income From Continuing Operations	286	2,117
Income from discontinued operations		20	[1]
Net income	286	2,137
Less: net income attributable to noncontrolling interests	-14	-14
Net Income Attributable to ConocoPhillips	272	2,123
Amounts Attributable to ConocoPhillips Common Shareholders:
Income from continuing operations	272	2,103
Income from discontinued operations	0	20
Net Income	$272	$2,123
Earnings Per Share, Basic [Abstract]
Continuing operations	$0.22	$1.70
Discontinued operations	$0	$0.02
Net Income Attributable to ConocoPhillips Per Share of Common Stock	$0.22	$1.72
Earnings Per Share, Diluted [Abstract]
Continuing operations	$0.22	$1.69
Discontinued operations	$0	$0.02
Net Income Attributable to ConocoPhillips Per Share of Common Stock	$0.22	$1.71
Dividends Paid Per Share of Common Stock (dollars)	$0.73	$0.69
Average Common Shares Outstanding (in thousands)
Basic	1,240,791	1,234,968
Diluted	1,245,531	1,242,667
[1]	*Net of provision for income taxes on discontinued operations of: $0, $32

Consolidated_Income_Statement_

Consolidated Income Statement (Parenthetical) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014
Consolidated Income Statement [Abstract]
Net of provision for income taxes on discontinued operations	$32

Consolidated_Statement_of_Comp

Consolidated Statement of Comprehensive Income (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015		Mar. 31, 2014
Consolidated Statement of Comprehensive Income [Abstract]
Net income	$286		$2,137
Defined benefit plans
Reclassification adjustment for amortization of prior service cost (credit) included in net income	-1		-2
Reclassification adjustment for amortization of net actuarial losses included in net income	50		33
Nonsponsored plans	0	[1]	6	[1]
Income taxes on defined benefit plans	-17		-11
Defined benefit plans, net of tax	32		26
Foreign currency translation adjustments	-2,745		-222
Income taxes on foreign currency translation adjustments	26		-4
Foreign currency translation adjustments, net of tax	-2,719		-226
Other Comprehensive Income (Loss), Net of Tax	-2,687		-200
Comprehensive Income	-2,401		1,937
Less: comprehensive income attributable to noncontrolling interests	-14		-14
Comprehensive Income Attributable to ConocoPhillips	($2,415)		$1,923
[1]	*Plans for which ConocoPhillips is not the primary obligor—primarily those administered by equity affiliates.

Consolidated_Balance_Sheet

Consolidated Balance Sheet (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Assets
Cash and cash equivalents	$2,664	$5,062
Accounts and notes receivable (net of allowance of $4 million in 2015 and $5 million in 2014)	5,246	6,675
Accounts and notes receivable-related parties	133	132
Inventories	1,233	1,331
Prepaid expenses and other current assets	1,564	1,868
Total Current Assets	10,840	15,068
Investments and long-term receiavables	23,224	24,335
Loans and advances-related parties	750	804
Net properties, plants and equipment (net of accumulated depreciation, depletion and amortization of $70,256 million in 2015 and $70,786 million in 2014)	74,220	75,444
Other assets	1,008	888
Total Assets	110,042	116,539
Liabilities
Accounts payable	6,706	7,982
Accounts payable-related parties	44	44
Short-term debt	193	182
Accrued income and other taxes	864	1,051
Employee benefit obligations	552	878
Other accruals	1,204	1,400
Total Current Liabilities	9,563	11,537
Long-term debt	22,318	22,383
Asset retirement obligations and accrued environmental costs	10,304	10,647
Deferred income taxes	14,042	15,070
Employee benefit obligations	2,979	2,964
Other liabilities and deferred credits	1,828	1,665
Total Liabilities	61,034	64,266
Equity
Common stock (2,500,000,000 shares authorized at $.01 par value)	18	18
Capital in excess of par	46,136	46,071
Treasury stock (at cost: 2015-542,230,673 shares; 2014-542,230,673 shares)	-36,780	-36,780
Accumulated other comprehensive income (loss)	-4,589	-1,902
Retained earnings	43,867	44,504
Total Common Stockholders' Equity	48,652	51,911
Noncontrolling interests	356	362
Total Equity	49,008	52,273
Total Liabilities and Equity	$110,042	$116,539

Consolidated_Balance_Sheet_Par

Consolidated Balance Sheet (Parenthetical) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, except Share data, unless otherwise specified
Consolidated Balance Sheet [Abstract]
Allowance for accounts and notes receivable	$4	$5
Accumulated depreciation, depletion and amortization	$70,256	$70,786
Common stock, shares authorized	2,500,000,000	2,500,000,000
Common stock, par value	$0.01	$0.01
Common stock, shares issued	1,775,177,289	1,773,583,368
Treasury stock, shares	542,230,673	542,230,673

Consolidated_Statement_of_Cash

Consolidated Statement of Cash Flows (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Cash Flows From Operating Activities
Net income	$286	$2,137
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation, depletion and amortization	2,131	1,892
Impairments	16	1
Dry hole costs and leasehold impairments	311	69
Accretion on discounted liabilities	121	117
Deferred taxes	-637	230
Undistributed equity earnings	80	1,131
Gain on dispositions	-52	-9
Income from discontinued operations		-20	[1]
Other	-133	116
Working capital adjustments
Decrease (increase) in accounts and notes receivable	1,368	-290
Decrease (increase) in inventories	77	-27
Decrease (increase) in prepaid expenses and other current assets	234	-17
Increase (decrease) in accounts payable	-1,302	353
Increase (decrease) in taxes and other accruals	-630	595
Net cash provided by continuing operating activities	1,870	6,278
Net cash provided by discontinued operations	0	58
Net Cash Provided by Operating Activities	1,870	6,336
Cash Flows From Investing Activities
Capital expenditures and investments	-3,332	-3,895
Proceeds from asset dispositions	173	48
Net sales (purchases) of short-term investments		63
Collection of advances/loans-related parties	52	62
Other	-9	46
Net cash used in continuing investing activities	-3,116	-3,676
Net cash used in discontinued operations	0	-22
Net Cash Used in Investing Activities	-3,116	-3,698
Cash Flows From Financing Activities
Repayment of debt	-57	-450
Issuance of company common stock	-34	-32
Dividends paid	-910	-855
Other	-18	-17
Net cash used in continuing financing activities	-1,019	-1,354
Net Cash Used in Financing Activities	-1,019	-1,354
Effect of Exchange Rate Changes on Cash and Cash Equivalents	-133	-10
Net Change in Cash and Cash Equivalents	-2,398	1,274
Cash and cash equivalents at beginning of period	5,062	6,246
Cash and Cash Equivalents at End of Period	$2,664	$7,520
[1]	*Net of provision for income taxes on discontinued operations of: $0, $32

Basis_of_Presentation

Basis of Presentation	3 Months Ended
	Mar. 31, 2015
Basis of Presentation [Abstract]
Basis of Presentation	Note 1—Basis of Presentation
	The interim-period financial information presented in the financial statements included in this report is unaudited and, in the opinion of management, includes all known accruals and adjustments necessary for a fair presentation of the consolidated financial position of ConocoPhillips and its results of operations and cash flows for such periods. All such adjustments are of a normal and recurring nature unless otherwise disclosed. Certain notes and other information have been condensed or omitted from the interim financial statements included in this report. Therefore, these financial statements should be read in conjunction with the consolidated financial statements and notes included in our 2014 Annual Report on Form 10-K.
	Effective April 1, 2014, the Other International segment was restructured to focus on enhancing our capability to operate in emerging and new country business units. As a result, we moved the Latin America and Poland businesses from the historically presented Lower 48 and Latin America segment and the Europe segment to the Other International segment. Results of operations for the Lower 48, Europe and Other International segments have been revised for all periods presented. For additional information, see Note 16—Segment Disclosures and Related Information.
	The results of operations for our former Nigeria business have been classified as discontinued operations for all periods presented. Unless indicated otherwise, the information in the Notes to Consolidated Financial Statements relates to our continuing operations.

Variable_Interest_Entities_VIE

Variable Interest Entities (VIEs)	3 Months Ended
	Mar. 31, 2015
Variable Interest Entities VIEs [Abstract]
Variable Interest Entities (VIEs)	Note 2—Variable Interest Entities (VIEs)
	We hold variable interests in VIEs that have not been consolidated because we are not considered the primary beneficiary. Information on our significant VIE follows:
	Australia Pacific LNG Pty Ltd (APLNG)
	APLNG is considered a VIE, as it has entered into certain contractual arrangements that provide it with additional forms of subordinated financial support. We are not the primary beneficiary of APLNG because we share with Origin Energy and China Petrochemical Corporation (Sinopec) the power to direct the key activities of APLNG that most significantly impact its economic performance, which involve activities related to the production and commercialization of coalbed methane, as well as liquefied natural gas (LNG) processing and export marketing. As a result, we do not consolidate APLNG, and it is accounted for as an equity method investment.
	As of March 31, 2015, we have not provided any financial support to APLNG other than amounts previously contractually required. Unless we elect otherwise, we have no requirement to provide liquidity or purchase the assets of APLNG. See Note 4—Investments, Loans and Long-Term Receivables, and Note 8—Guarantees, for additional information.

Inventories

Inventories	3 Months Ended
	Mar. 31, 2015
Inventories [Abstract]
Inventories	Note 3—Inventories
	Inventories consisted of the following:
		Millions of Dollars
		31-Mar		31-Dec
			2015	2014
	Crude oil and natural gas	$	456	538
	Materials, supplies and other		777	793
		$	1,233	1,331
	Inventories valued on the last-in, first-out (LIFO) basis totaled $330 million and $440 million at March 31, 2015 and December 31, 2014, respectively.

Investments_Loans_and_LongTerm

Investments, Loans and Long-Term Receivables	3 Months Ended
	Mar. 31, 2015
Investments, Loans and Long-Term Receivables [Abstract]
Investments, Loans and Long-Term Receivables	Note 4—Investments, Loans and Long-Term Receivables
	APLNG
	APLNG’s $8.5 billion project finance facility consists of financing agreements executed by APLNG with the Export-Import Bank of the United States for approximately $2.9 billion, the Export-Import Bank of China for approximately $2.7 billion, and a syndicate of Australian and international commercial banks for approximately $2.9 billion. At March 31, 2015, $8.3 billion had been drawn from the facility. In connection with the execution of the project financing, we provided a completion guarantee for our pro-rata share of the project finance facility until the project achieves financial completion. See Note 8—Guarantees, for additional information.
	APLNG is considered a VIE, as it has entered into certain contractual arrangements that provide it with additional forms of subordinated financial support. See Note 2—Variable Interest Entities (VIEs), for additional information.
	At March 31, 2015, the book value of our equity method investment in APLNG was $11,718 million, net of a $671 million reduction due to cumulative translation effects. The balance is included in the “Investments and long-term receivables” line on our consolidated balance sheet.
	FCCL
	At March 31, 2015, the book value of our equity method investment in FCCL was $8,637 million, net of a $1,216 million reduction due to cumulative translation effects. The balance is included in the “Investments and long-term receivables” line on our consolidated balance sheet. In the first quarter of 2014, we received a $1.3 billion distribution from FCCL, which is included in the “Undistributed equity earnings” line on our consolidated statement of cash flows.
	Loans and Long-Term Receivables
	As part of our normal ongoing business operations and consistent with industry practice, we enter into numerous agreements with other parties to pursue business opportunities. Included in such activity are loans made to certain affiliated and non-affiliated companies. At March 31, 2015, significant loans to affiliated companies included $857 million in project financing to Qatar Liquefied Gas Company Limited (3) (QG3).
	The long-term portion of these loans is included in the “Loans and advances—related parties” line on our consolidated balance sheet, while the short-term portion is in “Accounts and notes receivable—related parties.”

Suspended_Wells_and_Wells_in_P

Suspended Wells and Wells in Progress	3 Months Ended
	Mar. 31, 2015
Suspended Wells [Abstract]
Suspended Wells	Note 5—Suspended Wells
	The capitalized cost of suspended wells at March 31, 2015, was $1,310 million, an increase of $11 million from $1,299 million at year-end 2014. No suspended wells were charged to dry hole expense during the first three months of 2015 relating to exploratory well costs capitalized for a period greater than one year as of December 31, 2014.

Debt

Debt	3 Months Ended
	Mar. 31, 2015
Debt [Abstract]
Debt	Note 6—Debt
	We have two commercial paper programs supported by our $7.0 billion revolving credit facility: the ConocoPhillips $6.1 billion program, primarily a funding source for short-term working capital needs, and the ConocoPhillips Qatar Funding Ltd. $900 million program, which is used to fund commitments relating to QG3. Commercial paper maturities are generally limited to 90 days.
	At March 31, 2015 and December 31, 2014, we had no direct outstanding borrowings under the revolving credit facility, with no letters of credit as of March 31, 2015 or December 31, 2014. In addition, under the ConocoPhillips Qatar Funding Ltd. commercial paper program, there was $806 million of commercial paper outstanding at March 31, 2015, compared with $860 million at December 31, 2014. Since we had $806 million of commercial paper outstanding and had issued no letters of credit, we had access to $6.2 billion in borrowing capacity under our revolving credit facility at March 31, 2015.
	At March 31, 2015, we classified $698 million of short-term debt as long-term debt, based on our ability and intent to refinance the obligation on a long-term basis under our revolving credit facility.

Noncontrolling_Interests

Noncontrolling Interests	3 Months Ended
	Mar. 31, 2015
Noncontrolling Interests [Abstract]
Noncontrolling Interests	Note 7—Noncontrolling Interests
	Activity attributable to common stockholders’ equity and noncontrolling interests for the first three months of 2015 and 2014 was as follows:
			Millions of Dollars
			2015				2014
			Common Stockholders’ Equity		Non-Controlling Interest	Total Equity	Common Stockholders’ Equity	Non-Controlling Interest	Total Equity
	Balance at January 1		$	51,911	362	52,273	52,090	402	52,492
	Net income			272	14	286	2,123	14	2,137
	Dividends			-910	-	-910	-855	-	-855
	Distributions to noncontrolling
		interests		-	-21	-21	-	-17	-17
	Other changes, net*			-2,621	1	-2,620	-136	-	-136
	Balance at March 31		$	48,652	356	49,008	53,222	399	53,621
	*Includes components of other comprehensive income, which are disclosed separately in the Consolidated Statement of Comprehensive Income.

Guarantees

Guarantees	3 Months Ended
	Mar. 31, 2015
Guarantees [Abstract]
Guarantees	Note 8—Guarantees
	At March 31, 2015, 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.
	APLNG Guarantees
	At March 31, 2015, we have outstanding multiple guarantees in connection with our 37.5 percent ownership interest in APLNG. The following is a description of the guarantees with values calculated utilizing March 2015 exchange rates:
	We have guaranteed APLNG’s performance with regard to a construction contract executed in connection with APLNG’s issuance of the Train 1 and Train 2 Notices to Proceed. We estimate the remaining term of this guarantee is two years. Our maximum potential amount of future payments related to this guarantee is approximately $90 million and would become payable if APLNG cancels the applicable construction contract and does not perform with respect to the amounts owed to the contractor.
	We have issued a construction completion guarantee related to the third-party project financing secured by APLNG. Our maximum potential amount of future payments under the guarantee is estimated to be $3.2 billion, which could be payable if the full debt financing capacity is utilized and completion of the project is not achieved. Our guarantee of the project financing will be released upon meeting certain completion tests with milestones, which we estimate should occur beginning in 2016. Our maximum exposure at March 31, 2015, is $3.1 billion based upon our pro-rata share of the facility used at that date. At March 31, 2015, the carrying value of this guarantee is approximately $114 million.
	In conjunction with our original purchase of an ownership interest in APLNG from Origin Energy in October 2008, we agreed to guarantee an existing obligation of APLNG to deliver natural gas under several sales agreements with remaining terms of 1 to 27 years. Our maximum potential amount of future payments, or cost of volume delivery, under these guarantees is estimated to be $1.2 billion ($2.1 billion in the event of intentional or reckless breach), and would become payable if APLNG fails to meet its obligations under these agreements and the obligations cannot otherwise be mitigated. Future payments are considered unlikely, as the payments, or cost of volume delivery, would only be triggered if APLNG does not have enough natural gas to meet these sales commitments and if the co-venturers do not make necessary equity contributions into APLNG.
	We have guaranteed the performance of APLNG with regard to certain other contracts executed in connection with the project’s continued development. The guarantees have remaining terms of up to 31 years or the life of the venture. Our maximum potential amount of future payments related to these guarantees is approximately $150 million and would become payable if APLNG does not perform.
	Other Guarantees
	We have other guarantees with maximum future potential payment amounts totaling approximately $300 million, which consist primarily of guarantees of the residual value of leased corporate aircraft, guarantees to fund the short-term cash liquidity deficit of two joint ventures, a guarantee for our portion of a joint venture’s debt obligations and a guarantee of minimum charter revenue for an LNG vessel. These guarantees have remaining terms of up to 9 years or the life of the venture and would become payable if, upon sale, certain asset values are lower than guaranteed amounts, business conditions decline at guaranteed entities, or as a result of non-performance of contractual terms by guaranteed parties.
	Indemnifications
	Over the years, we have entered into agreements to sell ownership interests in certain corporations, joint ventures and assets that gave rise to qualifying indemnifications. These agreements include indemnifications for taxes, environmental liabilities, employee claims, and litigation. 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 these indemnifications at March 31, 2015, was approximately $90 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 at March 31, 2015, were approximately $40 million of environmental accruals for known contamination that are included in the “Asset retirement obligations and accrued environmental costs” line on our consolidated balance sheet. For additional information about environmental liabilities, see Note 9—Contingencies and Commitments.
	On April 30, 2012, the separation of our Downstream businesses was completed, creating two independent energy companies: ConocoPhillips and Phillips 66. In connection with the separation, we entered into an Indemnification and Release Agreement, which provides for cross-indemnities between Phillips 66 and us and established procedures for handling claims subject to indemnification and related matters. We evaluated the impact of the indemnifications given and the Phillips 66 indemnifications received as of the separation date and concluded those fair values were immaterial.
	On March 1, 2015, a supplier to one of the refineries that was included in Phillips 66 as part of the separation of our Downstream businesses formally registered Phillips 66 as a party to the supply agreement, thereby triggering a guarantee we provided at the time of separation. Our maximum potential liability for future payments under this guarantee, which would become payable if Phillips 66 does not perform its contractual obligations under the supply agreement, is approximately $1.7 billion. At March 31, 2015, the carrying value of this guarantee is approximately $100 million and the remaining term is 9 years. Because Phillips 66 has indemnified us for losses incurred under this guarantee, we have recorded an indemnification asset from Phillips 66 of approximately $100 million. The recorded indemnification asset amount represents the estimated fair value of the guarantee; however, if we are required to perform under the guarantee, we would expect to recover from Phillips 66 any amounts in excess of that value, provided Phillips 66 is a going concern.

Contingencies_and_Commitments

Contingencies and Commitments	3 Months Ended
	Mar. 31, 2015
Contingencies and Commitments [Abstract]
Contingencies and Commitments	Note 9—Contingencies and Commitments
	A number of lawsuits involving a variety of claims arising in the ordinary course of business have been made against ConocoPhillips. 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 accrue receivables for probable insurance or other third-party recoveries. With respect to 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 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 that is 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 other sites, we are usually only one of many companies cited 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 agency 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 limits and time limits.
	We are currently participating in environmental assessments and cleanups at numerous federal Superfund and comparable state and international sites. After an assessment of environmental exposures for cleanup and other costs, we make accruals on an undiscounted basis (except those 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 March 31, 2015, our balance sheet included a total environmental accrual of $322 million, compared with $344 million at December 31, 2014, for remediation activities in the United States and Canada. 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
	We are subject to various lawsuits and claims including but not limited to matters involving oil and gas royalty and severance tax payments, gas measurement and valuation methods, contract disputes, environmental damages, personal injury, and property damage. Our primary exposures for such matters relate to alleged royalty underpayments on certain federal, state and privately owned properties and claims of alleged environmental contamination from historic operations. We will continue to defend ourselves vigorously in these matters.
	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. In addition, at March 31, 2015, we had performance obligations secured by letters of credit of $472 million (issued as direct bank letters of credit) related to various purchase commitments for materials, supplies, commercial activities and services incident to the ordinary conduct of business.
	In 2007, we announced we had been unable to reach agreement with respect to our migration to an empresa mixta structure mandated by the Venezuelan government’s Nationalization Decree. As a result, Venezuela’s national oil company, Petróleos de Venezuela S.A. (PDVSA), or its affiliates, directly assumed control over ConocoPhillips’ interests in the Petrozuata and Hamaca heavy oil ventures and the offshore Corocoro development project. In response to this expropriation, we filed a request for international arbitration on November 2, 2007, with the World Bank’s International Centre for Settlement of Investment Disputes (ICSID). An arbitration hearing was held before an ICSID tribunal during the summer of 2010. On September 3, 2013, an ICSID arbitration tribunal held that Venezuela unlawfully expropriated ConocoPhillips’ significant oil investments in June 2007. A separate arbitration phase is currently proceeding to determine the damages owed to ConocoPhillips for Venezuela’s actions. On October 10, 2014, we filed a separate arbitration under the rules of the International Chamber of Commerce against PDVSA for contractual compensation related to the Petrozuata and Hamaca heavy crude oil projects.
	In 2008, Burlington Resources, Inc., a wholly owned subsidiary of ConocoPhillips, initiated arbitration before ICSID against The Republic of Ecuador, as a result of the newly enacted Windfall Profits Tax Law and government-mandated renegotiation of our production sharing contracts. Despite a restraining order issued by the ICSID tribunal, Ecuador confiscated the crude oil production of Burlington and its co-venturer and sold the seized crude oil.  In 2009, Ecuador took over operations in Blocks 7 and 21, fully expropriating our assets. In June 2010, the ICSID tribunal concluded it has jurisdiction to hear the expropriation claim. On April 24, 2012, Ecuador filed supplemental counterclaims asserting environmental damages, which we believe are not material. The ICSID tribunal issued a decision on liability on December 14, 2012, in favor of Burlington, finding that Ecuador's seizure of Blocks 7 and 21 was an unlawful expropriation in violation of the Ecuador-U.S. Bilateral Investment Treaty. An additional arbitration phase is now proceeding to determine the damages owed to ConocoPhillips for Ecuador’s actions and to address Ecuador’s counterclaims.
	ConocoPhillips served a Notice of Arbitration on the Timor-Leste Minister of Finance in October 2012 for outstanding disputes related to a series of tax assessments. As of March 31, 2015, ConocoPhillips has paid, under protest, tax assessments totaling approximately $237 million, which are primarily recorded in the “Investments and long-term receivables” line on our consolidated balance sheet. The arbitration hearing was conducted in Singapore in June 2014 under the United Nations Commission on International Trade Laws (UNCITRAL) arbitration rules, pursuant to the terms of the Tax Stability Agreement with the Timor-Leste government. Post-hearing briefs from both parties were filed in August 2014. We are now awaiting the Tribunal’s decision. Future impacts on our business are not known at this time.

Derivative_and_Financial_Instr

Derivative and Financial Instruments	3 Months Ended
	Mar. 31, 2015
Derivative and Financial Instruments [Abstract]
Derivative and Financial Instruments	Note 10—Derivative and Financial Instruments
	Derivative Instruments
	We use futures, forwards, swaps and options in various markets to meet our customer needs and capture market opportunities. Our commodity business primarily consists of natural gas, crude oil, bitumen, LNG and natural gas liquids.
	Our derivative instruments are held at fair value on our consolidated balance sheet. Where these balances have the right of setoff, they are presented on a net basis. Related cash flows are recorded as operating activities on the consolidated statement of cash flows. On our consolidated income statement, realized and unrealized gains and losses are recognized either on a gross basis if directly related to our physical business or a net basis if held for trading. Gains and losses related to contracts that meet and are designated with the normal purchase normal sale exception are recognized upon settlement. We generally apply this exception to eligible crude contracts. We do not use hedge accounting for our commodity derivatives.
	The following table presents the gross fair values of our commodity derivatives, excluding collateral, and the line items where they appear on our consolidated balance sheet:
		Millions of Dollars
		31-Mar			31-Dec
		2015			2014
	Assets
	Prepaid expenses and other current assets	$	3,593		4,500
	Other assets		162		157
	Liabilities
	Other accruals		3,590		4,426
	Other liabilities and deferred credits		157		144
	The gains (losses) incurred from commodity derivatives, and the line items where they appear on our consolidated income statement were:
			Millions of Dollars
			Three Months Ended
			31-Mar
			2015			2014
	Sales and other operating revenues		$	-16		237
	Other income			-1		1
	Purchased commodities			44		-221
	The table below summarizes our material net exposures resulting from outstanding commodity derivative contracts:
		Open Position
		Long/(Short)
		31-Mar			31-Dec
		2015			2014
	Commodity
	Natural gas and power (billions of cubic feet equivalent)
	Fixed price		-5		-11
	Basis		-3		18
	Foreign Currency Exchange Derivatives
	We have foreign currency exchange rate risk resulting from international operations. Our foreign currency exchange derivative activity primarily consists of transactions designed to mitigate our cash-related and foreign currency exchange rate exposures, such as firm commitments for capital programs or local currency tax payments, dividends, and cash returns from net investments in foreign affiliates. We do not elect hedge accounting on our foreign currency exchange derivatives.
	The following table presents the gross fair values of our foreign currency exchange derivatives, excluding collateral, and the line items where they appear on our consolidated balance sheet:
		Millions of Dollars
		31-Mar			31-Dec
		2015			2014
	Assets
	Prepaid expenses and other current assets	$	2		1
	Liabilities
	Other accruals		21		1
	The losses from foreign currency exchange derivatives incurred and the line item where they appear on our consolidated income statement were
				Millions of Dollars
			Three Months Ended
			31-Mar
			2015			2014
	Foreign currency transaction losses		$	24		-
	We had the following net notional position of outstanding foreign currency exchange derivatives:
				In Millions
				Notional Currency
			31-Mar			31-Dec
				2015		2014
	Sell U.S. dollar, buy other currencies*		USD	624		7
	Buy U.S. dollar, sell other currencies**		USD	9		44
	Sell British pound, buy euro		GBP	7		-
	Buy British pound, sell euro		GBP	-		20
	*Primarily Canadian dollar, Norwegian krone and British pound.
	**Primarily Canadian dollar, Norwegian krone and euro.
	Financial Instruments
	We have certain financial instruments on our consolidated balance sheet related to interest-bearing time deposits and commercial paper.  These held-to-maturity financial instruments are included in “Cash and cash equivalents” on our consolidated balance sheet if the maturities at the time we made the investments were 90 days or less.
		Millions of Dollars
		Carrying Amount
		Cash and Cash Equivalents
		31-Mar			31-Dec
	2015		2014
Cash	$	535		946
Money Market Funds		-		50
Time deposits
Remaining maturities from 1 to 90 days		2,129		3,726
Commercial paper
Remaining maturities from 1 to 90 days		-		340
	$	2,664		5,062
Credit Risk
Financial instruments potentially exposed to concentrations of credit risk consist primarily of cash equivalents, over-the-counter (OTC) derivative contracts and trade receivables. Our cash equivalents are placed in high-quality commercial paper, money market funds, government debt securities and time deposits with major international banks and financial institutions.
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 our petroleum 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, and we continually monitor this exposure and the creditworthiness of the counterparties. We do not generally 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 we fall below investment grade. Cash is the primary collateral in all contracts; however, many also permit us to post letters of credit as collateral, such as transactions administered through the New York Mercantile Exchange or IntercontinentalExchange.
The aggregate fair value of all derivative instruments with such credit-risk-related contingent features that were in a liability position on March 31, 2015 and December 31, 2014, was $121 million and $150 million, respectively. For these instruments, no collateral was posted as of March 31, 2015 or December 31, 2014. If our credit rating had been lowered one level from its “A” rating (per Standard and Poor’s) on March 31, 2015, we would be required to post no additional collateral to our counterparties. If we had been downgraded below investment grade, we would be required to post $121 million of additional collateral, either with cash or letters of credit.

Fair_Value_Measurement

Fair Value Measurement	3 Months Ended
	Mar. 31, 2015
Fair Value Measurement [Abstract]
Fair Value Measurement	Note 11—Fair Value Measurement
	We carry a portion of our assets and liabilities at fair value that are measured at a 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 disclosed according to the quality of valuation inputs under the following hierarchy:
	Level 1: Quoted prices (unadjusted) in an active market for identical assets or liabilities.
	Level 2: Inputs other than quoted prices that are directly or indirectly observable.
	Level 3: Unobservable inputs that are significant to the fair value of assets or liabilities.
	The classification of an asset or liability is based on the lowest level of input significant to its fair value. Those that are initially classified as Level 3 are subsequently reported as Level 2 when the fair value derived from unobservable inputs is inconsequential to the overall fair value, or if corroborated market data becomes available. Assets and liabilities that are initially reported as Level 2 are subsequently reported as Level 3 if corroborated market data is no longer available. Transfers occur at the end of the reporting period. There were no material transfers in or out of Level 1 during 2015 or 2014.
	Recurring Fair Value Measurement
	Financial assets and liabilities reported at fair value on a recurring basis primarily include commodity derivatives and certain investments to support nonqualified deferred compensation plans. 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. Level 1 derivative assets and liabilities primarily represent exchange-traded futures and options that are valued using unadjusted prices available from the underlying exchange. Level 2 derivative assets and liabilities primarily represent OTC swaps, options and forward purchase and sale contracts that are valued using adjusted exchange prices, prices provided by brokers or pricing service companies that are all corroborated by market data. Level 3 derivative assets and liabilities consist of OTC swaps, options and forward purchase and sale contracts that are long term in nature and where a significant portion of fair value is calculated from underlying market data that is not readily available. The derived value uses industry standard methodologies that may consider the historical relationships among various commodities, modeled market prices, time value, volatility factors and other relevant economic measures. The use of these inputs results in management’s best estimate of fair value. Level 3 activity was not material for all periods presented.
	The following table summarizes the fair value hierarchy for gross financial assets and liabilities (i.e., unadjusted where the right of setoff exists for commodity derivatives accounted for at fair value on a recurring basis):
			Millions of Dollars
			31-Mar-15									31-Dec-14
			Level 1			Level 2		Level 3		Total		Level 1		Level 2	Level 3	Total
	Assets
	Deferred compensation
		investments	$	296		-		-		296		297		-	-	297
	Commodity derivatives			3,452		232		71		3,755		4,221		361	75	4,657
	Total assets		$	3,748		232		71		4,051		4,518		361	75	4,954
	Liabilities
	Commodity derivatives		$	3,481		254		12		3,747		4,200		354	16	4,570
	Total liabilities		$	3,481		254		12		3,747		4,200		354	16	4,570
	The following table summarizes those commodity derivative balances subject to the right of setoff as presented
	on our consolidated balance sheet. We have elected to offset the recognized fair value amounts for multiple
	derivative instruments executed with the same counterparty in our financial statements when a legal right of offset exists.
		Millions of Dollars
		Gross			Gross		Net				Gross Amounts
		Amounts			Amounts		Amounts		Cash		without		Net
		Recognized			Offset		Presented		Collateral		Right of Setoff		Amounts
	31-Mar-15
	Assets	$	3,755		3,550		205		7		13		185
	Liabilities		3,747		3,550		197		37		10		150
	31-Dec-14
	Assets	$	4,657		4,352		305		8		28		269
	Liabilities		4,570		4,352		218		4		22		192
	At March 31, 2015 and December 31, 2014, we did not present any amounts gross on our consolidated
	balance sheet where we had the right of setoff.
	Reported 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 balance sheet approximates fair value.
	Accounts and notes receivable (including long-term and related parties): The carrying amount reported on the balance sheet approximates fair value. The valuation technique and methods used to estimate the fair value of the current portion of fixed-rate related party loans is consistent with Loans and advances—related parties.
	Loans and advances—related parties: The carrying amount of floating-rate loans approximates fair value. The fair value of fixed-rate loan activity is measured using market observable data and is categorized as Level 2 in the fair value hierarchy. See Note 4—Investments, Loans and Long-Term Receivables, for additional information.
	Accounts payable (including related parties) and floating-rate debt: The carrying amount of accounts payable and floating-rate debt reported on the balance sheet approximates fair value.
	Fixed-rate debt: The estimated fair value of fixed-rate debt is measured using prices available from a pricing service that is corroborated by market data; therefore, these liabilities are categorized as Level 2 in the fair value hierarchy.
	The following table summarizes the net fair value of financial instruments (i.e., adjusted where the right of setoff exists for commodity derivatives):
		Millions of Dollars
		Carrying Amount					Fair Value
		31-Mar			31-Dec		31-Mar		31-Dec
		2015			2014		2015		2014
	Financial assets
	Deferred compensation investments	$	296		297		296		297
	Commodity derivatives		198		297		198		297
	Total loans and advances—related parties		859		913		859		913
	Financial liabilities
	Total debt, excluding capital leases		21,650		21,707		25,460		25,191
	Commodity derivatives		160		214		160		214

Accumulated_Other_Comprehensiv

Accumulated Other Comprehensive Income	3 Months Ended
	Mar. 31, 2015
Accumulated Other Comprehensive Income [Abstract]
Accumulated Other Comprehensive Income	Note 12—Accumulated Other Comprehensive Income
	Accumulated other comprehensive income (loss) in the equity section of our consolidated balance sheet included:
			Millions of Dollars
			Defined Benefit Plans			Foreign Currency Translation	Accumulated Other Comprehensive Income (Loss)
	31-Dec-14		$	-1,261		-641	-1,902
	Other comprehensive income (loss)			32		-2,719	-2,687
	31-Mar-15		$	-1,229		-3,360	-4,589
	Foreign Currency Translation decreased due to the strengthening of the U.S. dollar relative to the Canadian dollar, Australian dollar
	and Norwegian krone.
	The following table summarizes reclassifications out of accumulated other comprehensive income (loss):
		Millions of Dollars
		Three Months Ended
		31-Mar
		2015			2014
	Defined benefit plans	$	32		20
	The above amounts are included in the computation of net periodic benefit cost and are presented net of tax expense of $17 million and
	$11 million for the three-month periods ended March 31, 2015 and 2014, respectively. See Note 14—Employee Benefit Plans, for additional
	information.
	There were no items within accumulated other comprehensive income (loss) related to noncontrolling interests.

Cash_Flow_Information

Cash Flow Information	3 Months Ended
	Mar. 31, 2015
Cash Flow Information [Abstract]
Cash Flow Information	Note 13—Cash Flow Information
		Millions of Dollars
		Three Months Ended
		31-Mar
			2015	2014
	Cash Payments (Receipts)
	Interest	$	197	199
	Income taxes*		-253	667
	Net Sales (Purchases) of Short-Term Investments
	Short-term investments purchased	$	-	-210
	Short-term investments sold		-	273
		$	-	63
	*Includes $556 million in 2015 related to a refund received from the Internal Revenue Service for 2014 overpaid taxes.

Employee_Benefit_Plans

Employee Benefit Plans	3 Months Ended
	Mar. 31, 2015
Employee Benefit Plans [Abstract]
Employee Benefit Plans	Note 14—Employee Benefit Plans
	Pension and Postretirement Plans
		Millions of Dollars
		Pension Benefits						Other Benefits
	Three Months Ended	31-Mar						31-Mar
		2015				2014		2015	2014
		U.S.			Int’l.	U.S.	Int’l.
	Components of Net Periodic Benefit Cost
	Service cost	$	36		32	31	28	1	1
	Interest cost		40		34	41	42	7	7
	Expected return on plan assets		-54		-44	-53	-46	-	-
	Amortization of prior service cost (credit)		2		-2	1	-2	-1	-1
	Recognized net actuarial loss (gain)		28		21	19	15	1	-1
	Net periodic benefit cost	$	52		41	39	37	8	6
	During the first three months of 2015, we contributed $14 million to our domestic benefit plans and $44 million to our international benefit plans. In 2015, we expect to contribute approximately $110 million to our domestic qualified and nonqualified pension and postretirement benefit plans and $120 million to our international qualified and nonqualified pension and postretirement benefit plans.
	Due to an ongoing restructuring program in the Europe segment, we recognized additional expense of $50 million associated with employee special termination benefits during the three-month period ended March 31, 2015, of which approximately 62 percent is expected to be recovered from partners.
	Severance Accrual
	As a result of the current business environment’s impact on our operating and capital plans, a reduction in our overall employee workforce is expected in 2015. The following segments recorded accruals totaling $85 million in the first quarter of 2015 for severance and related employee benefits: $33 million in Corporate and Other, $25 million in Lower 48, $24 million in Canada, $2 million in Alaska, and $1 million in Asia Pacific and Middle East. The following table summarizes our severance accrual activity:
			Millions of Dollars
	Balance at January 1, 2015		$	61
	Accruals			85
	Benefit payments			-13
	Foreign currency translation adjustments			-4
	Balance at March 31, 2015		$	129
	Of the remaining balance at March 31, 2015, $88 million is classified as short-term.

Related_Party_Transactions

Related Party Transactions	3 Months Ended
	Mar. 31, 2015
Related Party Transactions [Abstract]
Related Party Transactions	Note 15—Related Party Transactions
	We consider our equity method investments to be related parties. Significant transactions with related parties were:
			Millions of Dollars
			Three Months Ended
			31-Mar
			2015		2014
	Operating revenues and other income		$	25	21
	Purchases			22	48
	Operating expenses and selling, general and administrative expenses*			18	18
	Net interest (income) expense**			-2	-12
	*2014 has been restated to eliminate certain non-related party transactions.
	**We paid interest to, or received interest from various affiliates. See Note 4—Investments, Loans and Long-Term Receivables, for additional
		information on loans to affiliated companies.

Segment_Disclosures_and_Relate

Segment Disclosures and Related Information	3 Months Ended
	Mar. 31, 2015
Segment Disclosures and Related Information [Abstract]
Segment Disclosures and Related Information	Note 16—Segment Disclosures and Related Information
	We explore for, produce, transport and market crude oil, bitumen, natural gas, LNG and natural gas liquids on a worldwide basis. We manage our operations through six operating segments, which are primarily defined by geographic region: Alaska, Lower 48, Canada, Europe, Asia Pacific and Middle East, and Other International.
	Effective April 1, 2014, the Other International segment was restructured to focus on enhancing our capability to operate in emerging and new country business units. As a result, we moved the Latin America and Poland businesses from the historically presented Lower 48 and Latin America segment and the Europe segment to the Other International segment. Results of operations for the Lower 48, Europe and Other International segments have been revised for all periods presented. There was no impact on our consolidated financial statements, and the impact on our segment presentation was immaterial.
	In 2012, we agreed to sell our Nigeria business. We sold our Nigeria business in the third quarter of 2014. Results for these operations have been reported as discontinued operations in all periods presented.
	Corporate and Other represents costs not directly associated with an operating segment, such as most interest expense, corporate overhead and certain technology activities, including licensing revenues. Corporate assets include all cash and cash equivalents.
	We evaluate performance and allocate resources based on net income attributable to ConocoPhillips. Intersegment sales are at prices that approximate market.
	Analysis of Results by Operating Segment
		Millions of Dollars
		Three Months Ended
		31-Mar
			2015	2014
	Sales and Other Operating Revenues
	Alaska	$	1,050	2,186
	Lower 48		3,139	6,584
	Intersegment eliminations		-22	-38
	Lower 48		3,117	6,546
	Canada		703	1,859
	Intersegment eliminations		-110	-345
	Canada		593	1,514
	Europe		1,554	3,209
	Asia Pacific and Middle East		1,388	1,949
	Other International		-5	2
	Corporate and Other		19	9
	Consolidated sales and other operating revenues	$	7,716	15,415
	Net Income (Loss) Attributable to ConocoPhillips
	Alaska	$	145	598
	Lower 48		-405	324
	Canada		-158	356
	Europe		637	347
	Asia Pacific and Middle East		395	742
	Other International		-93	-29
	Corporate and Other		-249	-235
	Discontinued operations		-	20
	Consolidated net income (loss) attributable to ConocoPhillips	$	272	2,123
		Millions of Dollars
		31-Mar		31-Dec
		2015		2014
	Total Assets
	Alaska	$	12,913	12,655
	Lower 48		29,905	30,185
	Canada		20,035	21,764
	Europe		15,020	16,125
	Asia Pacific and Middle East		25,015	25,976
	Other International		2,025	1,961
	Corporate and Other		5,129	7,815
	Discontinued operations		-	58
	Consolidated total assets	$	110,042	116,539

Income_Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2015
Income Taxes [Abstract]
Income Taxes	Note 17—Income Taxes
	Our effective tax rate from continuing operations for the first quarter of 2015 was 180 percent compared with 43 percent for the first quarter of 2014. The increase in the effective tax rate was primarily due to the effect of the 2015 U.K. tax law change discussed below, partially offset by positive earnings in higher tax rate jurisdictions in 2015.
	The effective tax rate in excess of the domestic federal statutory rate of 35 percent was primarily due to foreign taxes.
	In the United Kingdom, legislation was enacted on March 26, 2015, to decrease the overall U.K. upstream corporation tax rate from 62 percent to 50 percent effective January 1, 2015. As a result, a $555 million net tax benefit for revaluing the U.K. deferred tax liability is reflected in the “Provision (benefit) for income taxes” line on our consolidated income statement.

New_Accounting_Standards

New Accounting Standards	3 Months Ended
	Mar. 31, 2015
New Accounting Standards [Abstract]
Description of New Accounting Pronouncements Not yet Adopted [Text Block]	Note 18—New Accounting Standards
	In May 2014, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2014-09, “Revenue from Contracts with Customers,” which outlines a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers. This ASU supersedes the revenue recognition requirements in FASB Accounting Standards Codification (ASC) Topic 605, “Revenue Recognition,” and most industry-specific guidance. This ASU sets forth a five-step model for determining when and how revenue is recognized. Under the model, an entity will be required to recognize revenue to depict the transfer of goods or services to a customer at an amount reflecting the consideration it expects to receive in exchange for those goods or services. Additional disclosures will be required to describe the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts. The ASU is currently effective for interim and annual periods beginning after December 15, 2016. Early adoption is not permitted. Entities may choose to adopt the standard using either a full retrospective approach or a modified retrospective approach. We are currently evaluating the impact of the adoption of this ASU.
	In February 2015, the FASB issued ASU No. 2015-02, “Amendments to the Consolidation Analysis,” which amends existing requirements applicable to reporting entities that are required to evaluate whether certain legal entities should be consolidated. The ASU is effective for interim and annual periods beginning after December 15, 2015. Early adoption is permitted. Entities may choose to adopt the standard using either a full retrospective approach or a modified retrospective approach. We are currently evaluating the impact of the adoption of this ASU.

Supplementary_Information_Cond

Supplementary Information - Condensed Consolidating Financial Information	3 Months Ended
	Mar. 31, 2015
Supplementary Information - Condensed Consolidating Financial Information [Abstract]
Supplementary Information - Condensed Consolidating Financial Information	Supplementary Information—Condensed Consolidating Financial Information
	We have various cross guarantees among ConocoPhillips, ConocoPhillips Company and ConocoPhillips Canada Funding Company I, with respect to publicly held debt securities. ConocoPhillips Company is 100 percent owned by ConocoPhillips. ConocoPhillips Canada Funding Company I is an indirect, 100 percent owned subsidiary of ConocoPhillips Company. ConocoPhillips and ConocoPhillips Company have fully and unconditionally guaranteed the payment obligations of ConocoPhillips Canada Funding Company I, with respect to its publicly held debt securities. Similarly, ConocoPhillips has fully and unconditionally guaranteed the payment obligations of ConocoPhillips Company with respect to its publicly held debt securities. In addition, ConocoPhillips Company has fully and unconditionally guaranteed the payment obligations of ConocoPhillips with respect to its publicly held debt securities. All guarantees are joint and several. The following condensed consolidating financial information presents the results of operations, financial position and cash flows for:
	ConocoPhillips, ConocoPhillips Company and ConocoPhillips Canada Funding Company I (in each case, reflecting investments in subsidiaries utilizing the equity method of accounting).
	All other nonguarantor subsidiaries of ConocoPhillips.
	The consolidating adjustments necessary to present ConocoPhillips’ results on a consolidated basis.
	This condensed consolidating financial information should be read in conjunction with the accompanying consolidated financial statements and notes.
	In April 2015, ConocoPhillips received a $2 billion return of capital from ConocoPhillips Company to settle certain accumulated intercompany balances. The transaction will be reflected in the second quarter 2015 Condensed Consolidating Financial Information for ConocoPhillips and ConocoPhillips Company and is expected to have no impact on our consolidated financial statements.
			Millions of Dollars
			Three Months Ended March 31, 2015
	Income Statement		ConocoPhillips	ConocoPhillips Company	ConocoPhillips Canada Funding Company I	All Other Subsidiaries	Consolidating Adjustments	Total Consolidated
	Revenues and Other Income
	Sales and other operating revenues	$	-	2,933	-	4,783	-	7,716
	Equity in earnings of affiliates		381	813	-	578	-1,567	205
	Gain on dispositions		-	31	-	21	-	52
	Other income		-	7	-	22	-	29
	Intercompany revenues		19	98	64	843	-1,024	-
	Total Revenues and Other Income		400	3,882	64	6,247	-2,591	8,002
	Costs and Expenses
	Purchased commodities		-	2,560	-	1,494	-817	3,237
	Production and operating expenses		-	400	-	1,434	-32	1,802
	Selling, general and administrative expenses		3	120	-	45	-9	159
	Exploration expenses		-	200	-	282	-	482
	Depreciation, depletion and amortization		-	259	-	1,872	-	2,131
	Impairments		-	-	-	16	-	16
	Taxes other than income taxes		-	69	-	155	-	224
	Accretion on discounted liabilities		-	14	-	107	-	121
	Interest and debt expense		121	101	57	89	-166	202
	Foreign currency transaction (gains) losses		63	-1	-378	300	-	-16
	Total Costs and Expenses		187	3,722	-321	5,794	-1,024	8,358
	Income (loss) from continuing operations before income taxes		213	160	385	453	-1,567	-356
	Provision (benefit) for income taxes		-59	-221	11	-373	-	-642
	Income From Continuing Operations		272	381	374	826	-1,567	286
	Income from discontinued operations		-	-	-	-	-	-
	Net income		272	381	374	826	-1,567	286
	Less: net income attributable to noncontrolling interests		-	-	-	-14	-	-14
	Net Income Attributable to ConocoPhillips	$	272	381	374	812	-1,567	272
	Comprehensive Income (Loss) Attributable to ConocoPhillips	$	-2,415	-2,306	30	-1,874	4,150	-2,415
			Three Months Ended March 31, 2014
	Income Statement		ConocoPhillips	ConocoPhillips Company	ConocoPhillips Canada Funding Company I	All Other Subsidiaries	Consolidating Adjustments	Total Consolidated
	Revenues and Other Income
	Sales and other operating revenues	$	-	6,143	-	9,272	-	15,415
	Equity in earnings of affiliates		2,212	2,451	-	721	-4,812	572
	Gain (loss) on dispositions		-	-1	-	10	-	9
	Other income		-	18	-	34	-	52
	Intercompany revenues		20	154	71	1,643	-1,888	-
	Total Revenues and Other Income		2,232	8,765	71	11,680	-6,700	16,048
	Costs and Expenses
	Purchased commodities		-	5,517	-	3,290	-1,680	7,127
	Production and operating expenses		-	360	-	1,538	-3	1,895
	Selling, general and administrative expenses		3	124	-	69	-14	182
	Exploration expenses		-	144	-	152	-	296
	Depreciation, depletion and amortization		-	242	-	1,650	-	1,892
	Impairments		-	1	-	-	-	1
	Taxes other than income taxes		-	93	-	558	-	651
	Accretion on discounted liabilities		-	14	-	103	-	117
	Interest and debt expense		159	70	58	75	-191	171
	Foreign currency transaction (gains) losses		25	-	-139	132	-	18
	Total Costs and Expenses		187	6,565	-81	7,567	-1,888	12,350
	Income from continuing operations before income taxes		2,045	2,200	152	4,113	-4,812	3,698
	Provision (benefit) for income taxes		-58	-12	2	1,649	-	1,581
	Income From Continuing Operations		2,103	2,212	150	2,464	-4,812	2,117
	Income from discontinued operations		20	20	-	20	-40	20
	Net income		2,123	2,232	150	2,484	-4,852	2,137
	Less: net income attributable to noncontrolling interests		-	-	-	-14	-	-14
Net Income Attributable to ConocoPhillips	$	2,123	2,232	150	2,470	-4,852	2,123
Comprehensive Income Attributable to ConocoPhillips	$	1,923	2,032	9	2,255	-4,296	1,923
	Millions of Dollars
	31-Mar-15
Balance Sheet	ConocoPhillips		ConocoPhillips Company	ConocoPhillips Canada Funding Company I	All Other Subsidiaries	Consolidating Adjustments	Total Consolidated
Assets
Cash and cash equivalents	$	-	64	8	2,592	-	2,664
Accounts and notes receivable		18	1,936	20	6,989	-3,584	5,379
Inventories		-	170	-	1,063	-	1,233
Prepaid expenses and other current assets		6	668	23	912	-45	1,564
Total Current Assets		24	2,838	51	11,556	-3,629	10,840
Investments, loans and long-term receivables*		53,220	70,182	3,760	30,685	-133,873	23,974
Net properties, plants and equipment		-	9,910	-	64,310	-	74,220
Other assets		39	171	357	1,198	-757	1,008
Total Assets	$	53,283	83,101	4,168	107,749	-138,259	110,042
Liabilities and Stockholders’ Equity
Accounts payable	$	-	4,477	15	5,842	-3,584	6,750
Short-term debt		-5	6	6	186	-	193
Accrued income and other taxes		-	67	-	797	-	864
Employee benefit obligations		-	401	-	151	-	552
Other accruals		101	332	85	731	-45	1,204
Total Current Liabilities		96	5,283	106	7,707	-3,629	9,563
Long-term debt		7,542	8,195	2,973	3,608	-	22,318
Asset retirement obligations and accrued environmental costs		-	1,335	-	8,969	-	10,304
Deferred income taxes		-	244	-	13,804	-6	14,042
Employee benefit obligations		-	2,169	-	810	-	2,979
Other liabilities and deferred credits*		3,552	7,583	1,048	16,370	-26,725	1,828
Total Liabilities		11,190	24,809	4,127	51,268	-30,360	61,034
Retained earnings		37,345	21,828	-722	18,163	-32,747	43,867
Other common stockholders’ equity		4,748	36,464	763	37,962	-75,152	4,785
Noncontrolling interests		-	-	-	356	-	356
Total Liabilities and Stockholders’ Equity	$	53,283	83,101	4,168	107,749	-138,259	110,042
*Includes intercompany loans.
	31-Dec-14
Balance Sheet		ConocoPhillips	ConocoPhillips Company	ConocoPhillips Canada Funding Company I	All Other Subsidiaries	Consolidating Adjustments	Total Consolidated
Assets
Cash and cash equivalents	$	-	770	7	4,285	-	5,062
Accounts and notes receivable		20	2,813	22	6,671	-2,719	6,807
Inventories		-	281	-	1,050	-	1,331
Prepaid expenses and other current assets		6	754	15	1,138	-45	1,868
Total Current Assets		26	4,618	44	13,144	-2,764	15,068
Investments, loans and long-term receivables*		55,568	70,732	3,965	32,467	-137,593	25,139
Net properties, plants and equipment		-	9,730	-	65,714	-	75,444
Other assets		40	67	208	1,338	-765	888
Total Assets		55,634	85,147	4,217	112,663	-141,122	116,539
Liabilities and Stockholders’ Equity
Accounts payable		1	4,149	14	6,581	-2,719	8,026
Short-term debt		-5	6	5	176	-	182
Accrued income and other taxes		-	117	-	934	-	1,051
Employee benefit obligations		-	595	-	283	-	878
Other accruals		170	337	71	868	-46	1,400
Total Current Liabilities		166	5,204	90	8,842	-2,765	11,537
Long-term debt		7,541	8,197	2,974	3,671	-	22,383
Asset retirement obligations and accrued environmental costs		-	1,328	-	9,319	-	10,647
Deferred income taxes		-	265	-	14,811	-6	15,070
Employee benefit obligations		-	2,162	-	802	-	2,964
Other liabilities and deferred credits*		2,577	7,391	1,142	17,218	-26,663	1,665
Total Liabilities		10,284	24,547	4,206	54,663	-29,434	64,266
Retained earnings		37,983	21,448	-1,096	17,355	-31,186	44,504
Other common stockholders’ equity		7,367	39,152	1,107	40,283	-80,502	7,407
Noncontrolling interests		-	-	-	362	-	362
Total Liabilities and Stockholders’ Equity	$	55,634	85,147	4,217	112,663	-141,122	116,539
*Includes intercompany loans.
	Millions of Dollars
	Three Months Ended March 31, 2015
Statement of Cash Flows	ConocoPhillips		ConocoPhillips Company	ConocoPhillips Canada Funding Company I	All Other Subsidiaries	Consolidating Adjustments	Total Consolidated
Cash Flows From Operating Activities
Net cash provided by (used in) continuing operating activities	$	-131	-171	1	2,082	89	1,870
Net cash provided by (used in) discontinued operations		-	-	-	-	-	-
Net Cash Provided by (Used in) Operating Activities		-131	-171	1	2,082	89	1,870
Cash Flows From Investing Activities
Capital expenditures and investments		-	-941	-	-2,759	368	-3,332
Proceeds from asset dispositions		-	88	-	88	-3	173
Long-term advances/loans—related parties		-	-72	-	-1,482	1,554	-
Collection of advances/loans—related parties		-	-	-	52	-	52
Intercompany cash management		974	-1,085	-	111	-	-
Other		-	-7	-	-2	-	-9
Net cash provided by (used in) continuing investing activities		974	-2,017	-	-3,992	1,919	-3,116
Net cash provided by (used in) discontinued operations		-	-	-	-	-	-
Net Cash Provided by (Used in) Investing Activities		974	-2,017	-	-3,992	1,919	-3,116
Cash Flows From Financing Activities
Issuance of debt		-	1,482	-	72	-1,554	-
Repayment of debt		-	-	-	-57	-	-57
Issuance of company common stock		66	-	-	-	-100	-34
Dividends paid		-910	-	-	-11	11	-910
Other		1	-	-	346	-365	-18
Net cash provided by (used in) continuing financing activities		-843	1,482	-	350	-2,008	-1,019
Net cash used in discontinued operations		-	-	-	-	-	-
Net Cash Provided by (Used in) Financing Activities		-843	1,482	-	350	-2,008	-1,019
Effect of Exchange Rate Changes on Cash and Cash Equivalents		-	-	-	-133	-	-133
Net Change in Cash and Cash Equivalents		-	-706	1	-1,693	-	-2,398
Cash and cash equivalents at beginning of period		-	770	7	4,285	-	5,062
Cash and Cash Equivalents at End of Period	$	-	64	8	2,592	-	2,664
	Three Months Ended March 31, 2014
Statement of Cash Flows		ConocoPhillips	ConocoPhillips Company	ConocoPhillips Canada Funding Company I	All Other Subsidiaries	Consolidating Adjustments	Total Consolidated
Cash Flows From Operating Activities
Net cash provided by (used in) continuing operating activities	$	-134	373	1	5,976	62	6,278
Net cash provided by (used in) discontinued operations		-	100	-	121	-163	58
Net Cash Provided by (Used in) Operating Activities		-134	473	1	6,097	-101	6,336
Cash Flows From Investing Activities
Capital expenditures and investments		-	-662	-	-3,378	145	-3,895
Proceeds from asset dispositions		-	-1	-	49	-	48
Net sales (purchases) of short-term investments		-	-	-	63	-	63
Long-term advances/loans—related parties		-	-44	-	-2	46	-
Collection of advances/loans—related parties		-	15	-	47	-	62
Intercompany cash management		1,325	1,486	-	-2,811	-	-
Other		-	18	-	-6	34	46
Net cash provided by (used in) continuing investing activities		1,325	812	-	-6,038	225	-3,676
Net cash provided by (used in) discontinued operations		-	-1	-	-22	1	-22
Net Cash Provided by (Used in) Investing Activities		1,325	811	-	-6,060	226	-3,698
Cash Flows From Financing Activities
Issuance of debt		-	-	-	46	-46	-
Repayment of debt		-400	-	-	-50	-	-450
Issuance of company common stock		63	-	-	-	-95	-32
Dividends paid		-855	-	-	-96	96	-855
Other		1	-	-	161	-179	-17
Net cash provided by (used in) continuing financing activities		-1,191	-	-	61	-224	-1,354
Net cash provided by (used in) discontinued operations		-	-	-	-99	99	-
Net Cash Provided by (Used in) Financing Activities		-1,191	-	-	-38	-125	-1,354
Effect of Exchange Rate Changes on Cash and Cash Equivalents		-	-	-	-10	-	-10
Net Change in Cash and Cash Equivalents		-	1,284	1	-11	-	1,274
Cash and cash equivalents at beginning of period		-	2,434	229	3,583	-	6,246
Cash and Cash Equivalents at End of Period	$	-	3,718	230	3,572	-	7,520

Inventories_Tables

Inventories (Tables)	3 Months Ended
	Mar. 31, 2015
Inventories [Abstract]
Inventories	Note 3—Inventories
	Inventories consisted of the following:
		Millions of Dollars
		31-Mar		31-Dec
			2015	2014
	Crude oil and natural gas	$	456	538
	Materials, supplies and other		777	793
		$	1,233	1,331

Noncontrolling_Interests_Table

Noncontrolling Interests (Tables)	3 Months Ended
	Mar. 31, 2015
Noncontrolling Interests [Abstract]
Change in equity attributable to non-controlling interests	Note 7—Noncontrolling Interests
	Activity attributable to common stockholders’ equity and noncontrolling interests for the first three months of 2015 and 2014 was as follows:
			Millions of Dollars
			2015				2014
			Common Stockholders’ Equity		Non-Controlling Interest	Total Equity	Common Stockholders’ Equity	Non-Controlling Interest	Total Equity
	Balance at January 1		$	51,911	362	52,273	52,090	402	52,492
	Net income			272	14	286	2,123	14	2,137
	Dividends			-910	-	-910	-855	-	-855
	Distributions to noncontrolling
		interests		-	-21	-21	-	-17	-17
	Other changes, net*			-2,621	1	-2,620	-136	-	-136
	Balance at March 31		$	48,652	356	49,008	53,222	399	53,621
	*Includes components of other comprehensive income, which are disclosed separately in the Consolidated Statement of Comprehensive Income.

Derivative_and_Financial_Instr1

Derivative and Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2015
Derivative and Financial Instruments [Abstract]
Balance sheet location and fair value amounts of derivatives	The following table presents the gross fair values of our commodity derivatives, excluding collateral, and the line items where they appear on our consolidated balance sheet:
		Millions of Dollars
		31-Mar			31-Dec
		2015			2014
	Assets
	Prepaid expenses and other current assets	$	3,593		4,500
	Other assets		162		157
	Liabilities
	Other accruals		3,590		4,426
	Other liabilities and deferred credits		157		144
	The following table presents the gross fair values of our foreign currency exchange derivatives, excluding collateral, and the line items where they appear on our consolidated balance sheet:
		Millions of Dollars
		31-Mar			31-Dec
		2015			2014
	Assets
	Prepaid expenses and other current assets	$	2		1
	Liabilities
	Other accruals		21		1
Income statement location and gain/loss amounts of derivatives	The gains (losses) incurred from commodity derivatives, and the line items where they appear on our consolidated income statement were:
			Millions of Dollars
			Three Months Ended
			31-Mar
			2015			2014
	Sales and other operating revenues		$	-16		237
	Other income			-1		1
	Purchased commodities			44		-221
	The losses from foreign currency exchange derivatives incurred and the line item where they appear on our consolidated income statement were
				Millions of Dollars
			Three Months Ended
			31-Mar
			2015			2014
	Foreign currency transaction losses		$	24		-
Net exposures from outstanding commodity derivative contracts	The table below summarizes our material net exposures resulting from outstanding commodity derivative contracts:
		Open Position
		Long/(Short)
		31-Mar			31-Dec
		2015			2014
	Commodity
	Natural gas and power (billions of cubic feet equivalent)
	Fixed price		-5		-11
	Basis		-3		18
	We had the following net notional position of outstanding foreign currency exchange derivatives:
				In Millions
				Notional Currency
			31-Mar			31-Dec
				2015		2014
	Sell U.S. dollar, buy other currencies*		USD	624		7
	Buy U.S. dollar, sell other currencies**		USD	9		44
	Sell British pound, buy euro		GBP	7		-
	Buy British pound, sell euro		GBP	-		20
	*Primarily Canadian dollar, Norwegian krone and British pound.
	**Primarily Canadian dollar, Norwegian krone and euro.
Balances of financial instruments
		Millions of Dollars
		Carrying Amount
		Cash and Cash Equivalents
		31-Mar			31-Dec
		2015			2014
	Cash	$	535		946
	Money Market Funds		-		50
	Time deposits
	Remaining maturities from 1 to 90 days		2,129		3,726
	Commercial paper
	Remaining maturities from 1 to 90 days		-		340
		$	2,664		5,062

Fair_Value_Measurement_Tables

Fair Value Measurement (Tables)	3 Months Ended
	Mar. 31, 2015
Fair Value Measurement [Abstract]
Fair value hierarchy for gross financial assets and liabilities			Millions of Dollars
			31-Mar-15									31-Dec-14
			Level 1			Level 2		Level 3		Total		Level 1		Level 2	Level 3	Total
	Assets
	Deferred compensation
		investments	$	296		-		-		296		297		-	-	297
	Commodity derivatives			3,452		232		71		3,755		4,221		361	75	4,657
	Total assets		$	3,748		232		71		4,051		4,518		361	75	4,954
	Liabilities
	Commodity derivatives		$	3,481		254		12		3,747		4,200		354	16	4,570
	Total liabilities		$	3,481		254		12		3,747		4,200		354	16	4,570
Commodity derivative balances subject to right of setoff	The following table summarizes those commodity derivative balances subject to the right of setoff as presented
	on our consolidated balance sheet. We have elected to offset the recognized fair value amounts for multiple
	derivative instruments executed with the same counterparty in our financial statements when a legal right of offset exists.
		Millions of Dollars
		Gross			Gross		Net				Gross Amounts
		Amounts			Amounts		Amounts		Cash		without		Net
		Recognized			Offset		Presented		Collateral		Right of Setoff		Amounts
	31-Mar-15
	Assets	$	3,755		3,550		205		7		13		185
	Liabilities		3,747		3,550		197		37		10		150
	31-Dec-14
	Assets	$	4,657		4,352		305		8		28		269
	Liabilities		4,570		4,352		218		4		22		192
	At March 31, 2015 and December 31, 2014, we did not present any amounts gross on our consolidated
	balance sheet where we had the right of setoff.
Net fair value of financial instruments	The following table summarizes the net fair value of financial instruments (i.e., adjusted where the right of setoff exists for commodity derivatives):
		Millions of Dollars
		Carrying Amount					Fair Value
		31-Mar			31-Dec		31-Mar		31-Dec
		2015			2014		2015		2014
	Financial assets
	Deferred compensation investments	$	296		297		296		297
	Commodity derivatives		198		297		198		297
	Total loans and advances—related parties		859		913		859		913
	Financial liabilities
	Total debt, excluding capital leases		21,650		21,707		25,460		25,191
	Commodity derivatives		160		214		160		214

Accumulated_Other_Comprehensiv1

Accumulated Other Comprehensive Income (Tables)	3 Months Ended
	Mar. 31, 2015
Accumulated Other Comprehensive Income [Abstract]
Components of accumulated other comprehensive income in the equity section of the balance sheet	Note 12—Accumulated Other Comprehensive Income
	Accumulated other comprehensive income (loss) in the equity section of our consolidated balance sheet included:
			Millions of Dollars
			Defined Benefit Plans			Foreign Currency Translation	Accumulated Other Comprehensive Income (Loss)
	31-Dec-14		$	-1,261		-641	-1,902
	Other comprehensive income (loss)			32		-2,719	-2,687
	31-Mar-15		$	-1,229		-3,360	-4,589
	Foreign Currency Translation decreased due to the strengthening of the U.S. dollar relative to the Canadian dollar, Australian dollar
	and Norwegian krone.
Items reclassified out of accumulated other comprehensive income (loss)	The following table summarizes reclassifications out of accumulated other comprehensive income (loss):
		Millions of Dollars
		Three Months Ended
		31-Mar
		2015			2014
	Defined benefit plans	$	32		20
	The above amounts are included in the computation of net periodic benefit cost and are presented net of tax expense of $17 million and
	$11 million for the three-month periods ended March 31, 2015 and 2014, respectively. See Note 14—Employee Benefit Plans, for additional
	information.

Cash_Flow_Information_Tables

Cash Flow Information (Tables)	3 Months Ended
	Mar. 31, 2015
Cash Flow Information [Abstract]
Cash Flow Information	Note 13—Cash Flow Information
		Millions of Dollars
		Three Months Ended
		31-Mar
			2015	2014
	Cash Payments (Receipts)
	Interest	$	197	199
	Income taxes*		-253	667
	Net Sales (Purchases) of Short-Term Investments
	Short-term investments purchased	$	-	-210
	Short-term investments sold		-	273
		$	-	63
	*Includes $556 million in 2015 related to a refund received from the Internal Revenue Service for 2014 overpaid taxes.

Employee_Benefit_Plans_Tables

Employee Benefit Plans (Tables)	3 Months Ended
	Mar. 31, 2015
Employee Benefit Plans [Abstract]
Pension and Postretirement Plans	Note 14—Employee Benefit Plans
	Pension and Postretirement Plans
		Millions of Dollars
		Pension Benefits						Other Benefits
	Three Months Ended	31-Mar						31-Mar
		2015				2014		2015	2014
		U.S.			Int’l.	U.S.	Int’l.
	Components of Net Periodic Benefit Cost
	Service cost	$	36		32	31	28	1	1
	Interest cost		40		34	41	42	7	7
	Expected return on plan assets		-54		-44	-53	-46	-	-
	Amortization of prior service cost (credit)		2		-2	1	-2	-1	-1
	Recognized net actuarial loss (gain)		28		21	19	15	1	-1
	Net periodic benefit cost	$	52		41	39	37	8	6
Severance accrual			Millions of Dollars
	Balance at January 1, 2015		$	61
	Accruals			85
	Benefit payments			-13
	Foreign currency translation adjustments			-4
	Balance at March 31, 2015		$	129

Related_Party_Transactions_Tab

Related Party Transactions (Tables)	3 Months Ended
	Mar. 31, 2015
Related Party Transactions [Abstract]
Significant transactions with related parties	Note 15—Related Party Transactions
	We consider our equity method investments to be related parties. Significant transactions with related parties were:
			Millions of Dollars
			Three Months Ended
			31-Mar
			2015		2014
	Operating revenues and other income		$	25	21
	Purchases			22	48
	Operating expenses and selling, general and administrative expenses*			18	18
	Net interest (income) expense**			-2	-12
	*2014 has been restated to eliminate certain non-related party transactions.
	**We paid interest to, or received interest from various affiliates. See Note 4—Investments, Loans and Long-Term Receivables, for additional
		information on loans to affiliated companies.

Segment_Disclosures_and_Relate1

Segment Disclosures and Related Information (Tables)	3 Months Ended
	Mar. 31, 2015
Segment Disclosures and Related Information [Abstract]
Analysis of Results by Operating Segment	Analysis of Results by Operating Segment
		Millions of Dollars
		Three Months Ended
		31-Mar
			2015	2014
	Sales and Other Operating Revenues
	Alaska	$	1,050	2,186
	Lower 48		3,139	6,584
	Intersegment eliminations		-22	-38
	Lower 48		3,117	6,546
	Canada		703	1,859
	Intersegment eliminations		-110	-345
	Canada		593	1,514
	Europe		1,554	3,209
	Asia Pacific and Middle East		1,388	1,949
	Other International		-5	2
	Corporate and Other		19	9
	Consolidated sales and other operating revenues	$	7,716	15,415
	Net Income (Loss) Attributable to ConocoPhillips
	Alaska	$	145	598
	Lower 48		-405	324
	Canada		-158	356
	Europe		637	347
	Asia Pacific and Middle East		395	742
	Other International		-93	-29
	Corporate and Other		-249	-235
	Discontinued operations		-	20
	Consolidated net income (loss) attributable to ConocoPhillips	$	272	2,123
		Millions of Dollars
		31-Mar		31-Dec
		2015		2014
	Total Assets
	Alaska	$	12,913	12,655
	Lower 48		29,905	30,185
	Canada		20,035	21,764
	Europe		15,020	16,125
	Asia Pacific and Middle East		25,015	25,976
	Other International		2,025	1,961
	Corporate and Other		5,129	7,815
	Discontinued operations		-	58
	Consolidated total assets	$	110,042	116,539

Supplementary_Information_Cond1

Supplementary Information - Condensed Consolidating Financial Information (Tables)	3 Months Ended
	Mar. 31, 2015
Supplementary Information - Condensed Consolidating Financial Information [Abstract]
Condensed Consolidated Income Statement			Millions of Dollars
			Three Months Ended March 31, 2015
	Income Statement		ConocoPhillips	ConocoPhillips Company	ConocoPhillips Canada Funding Company I	All Other Subsidiaries	Consolidating Adjustments	Total Consolidated
	Revenues and Other Income
	Sales and other operating revenues	$	-	2,933	-	4,783	-	7,716
	Equity in earnings of affiliates		381	813	-	578	-1,567	205
	Gain on dispositions		-	31	-	21	-	52
	Other income		-	7	-	22	-	29
	Intercompany revenues		19	98	64	843	-1,024	-
	Total Revenues and Other Income		400	3,882	64	6,247	-2,591	8,002
	Costs and Expenses
	Purchased commodities		-	2,560	-	1,494	-817	3,237
	Production and operating expenses		-	400	-	1,434	-32	1,802
	Selling, general and administrative expenses		3	120	-	45	-9	159
	Exploration expenses		-	200	-	282	-	482
	Depreciation, depletion and amortization		-	259	-	1,872	-	2,131
	Impairments		-	-	-	16	-	16
	Taxes other than income taxes		-	69	-	155	-	224
	Accretion on discounted liabilities		-	14	-	107	-	121
	Interest and debt expense		121	101	57	89	-166	202
	Foreign currency transaction (gains) losses		63	-1	-378	300	-	-16
	Total Costs and Expenses		187	3,722	-321	5,794	-1,024	8,358
	Income (loss) from continuing operations before income taxes		213	160	385	453	-1,567	-356
	Provision (benefit) for income taxes		-59	-221	11	-373	-	-642
	Income From Continuing Operations		272	381	374	826	-1,567	286
	Income from discontinued operations		-	-	-	-	-	-
	Net income		272	381	374	826	-1,567	286
	Less: net income attributable to noncontrolling interests		-	-	-	-14	-	-14
	Net Income Attributable to ConocoPhillips	$	272	381	374	812	-1,567	272
	Comprehensive Income (Loss) Attributable to ConocoPhillips	$	-2,415	-2,306	30	-1,874	4,150	-2,415
			Three Months Ended March 31, 2014
	Income Statement		ConocoPhillips	ConocoPhillips Company	ConocoPhillips Canada Funding Company I	All Other Subsidiaries	Consolidating Adjustments	Total Consolidated
	Revenues and Other Income
	Sales and other operating revenues	$	-	6,143	-	9,272	-	15,415
	Equity in earnings of affiliates		2,212	2,451	-	721	-4,812	572
	Gain (loss) on dispositions		-	-1	-	10	-	9
	Other income		-	18	-	34	-	52
	Intercompany revenues		20	154	71	1,643	-1,888	-
	Total Revenues and Other Income		2,232	8,765	71	11,680	-6,700	16,048
	Costs and Expenses
	Purchased commodities		-	5,517	-	3,290	-1,680	7,127
	Production and operating expenses		-	360	-	1,538	-3	1,895
	Selling, general and administrative expenses		3	124	-	69	-14	182
	Exploration expenses		-	144	-	152	-	296
	Depreciation, depletion and amortization		-	242	-	1,650	-	1,892
	Impairments		-	1	-	-	-	1
	Taxes other than income taxes		-	93	-	558	-	651
	Accretion on discounted liabilities		-	14	-	103	-	117
	Interest and debt expense		159	70	58	75	-191	171
	Foreign currency transaction (gains) losses		25	-	-139	132	-	18
	Total Costs and Expenses		187	6,565	-81	7,567	-1,888	12,350
	Income from continuing operations before income taxes		2,045	2,200	152	4,113	-4,812	3,698
	Provision (benefit) for income taxes		-58	-12	2	1,649	-	1,581
	Income From Continuing Operations		2,103	2,212	150	2,464	-4,812	2,117
	Income from discontinued operations		20	20	-	20	-40	20
	Net income		2,123	2,232	150	2,484	-4,852	2,137
	Less: net income attributable to noncontrolling interests		-	-	-	-14	-	-14
	Net Income Attributable to ConocoPhillips	$	2,123	2,232	150	2,470	-4,852	2,123
	Comprehensive Income Attributable to ConocoPhillips	$	1,923	2,032	9	2,255	-4,296	1,923
Schedule of Condensed Balance Sheet		Millions of Dollars
		31-Mar-15
	Balance Sheet	ConocoPhillips		ConocoPhillips Company	ConocoPhillips Canada Funding Company I	All Other Subsidiaries	Consolidating Adjustments	Total Consolidated
	Assets
	Cash and cash equivalents	$	-	64	8	2,592	-	2,664
	Accounts and notes receivable		18	1,936	20	6,989	-3,584	5,379
	Inventories		-	170	-	1,063	-	1,233
	Prepaid expenses and other current assets		6	668	23	912	-45	1,564
	Total Current Assets		24	2,838	51	11,556	-3,629	10,840
	Investments, loans and long-term receivables*		53,220	70,182	3,760	30,685	-133,873	23,974
	Net properties, plants and equipment		-	9,910	-	64,310	-	74,220
	Other assets		39	171	357	1,198	-757	1,008
	Total Assets	$	53,283	83,101	4,168	107,749	-138,259	110,042
	Liabilities and Stockholders’ Equity
	Accounts payable	$	-	4,477	15	5,842	-3,584	6,750
	Short-term debt		-5	6	6	186	-	193
	Accrued income and other taxes		-	67	-	797	-	864
	Employee benefit obligations		-	401	-	151	-	552
	Other accruals		101	332	85	731	-45	1,204
	Total Current Liabilities		96	5,283	106	7,707	-3,629	9,563
	Long-term debt		7,542	8,195	2,973	3,608	-	22,318
	Asset retirement obligations and accrued environmental costs		-	1,335	-	8,969	-	10,304
	Deferred income taxes		-	244	-	13,804	-6	14,042
	Employee benefit obligations		-	2,169	-	810	-	2,979
	Other liabilities and deferred credits*		3,552	7,583	1,048	16,370	-26,725	1,828
	Total Liabilities		11,190	24,809	4,127	51,268	-30,360	61,034
	Retained earnings		37,345	21,828	-722	18,163	-32,747	43,867
	Other common stockholders’ equity		4,748	36,464	763	37,962	-75,152	4,785
	Noncontrolling interests		-	-	-	356	-	356
	Total Liabilities and Stockholders’ Equity	$	53,283	83,101	4,168	107,749	-138,259	110,042
	*Includes intercompany loans.
		31-Dec-14
	Balance Sheet		ConocoPhillips	ConocoPhillips Company	ConocoPhillips Canada Funding Company I	All Other Subsidiaries	Consolidating Adjustments	Total Consolidated
	Assets
	Cash and cash equivalents	$	-	770	7	4,285	-	5,062
	Accounts and notes receivable		20	2,813	22	6,671	-2,719	6,807
	Inventories		-	281	-	1,050	-	1,331
	Prepaid expenses and other current assets		6	754	15	1,138	-45	1,868
	Total Current Assets		26	4,618	44	13,144	-2,764	15,068
	Investments, loans and long-term receivables*		55,568	70,732	3,965	32,467	-137,593	25,139
	Net properties, plants and equipment		-	9,730	-	65,714	-	75,444
	Other assets		40	67	208	1,338	-765	888
	Total Assets		55,634	85,147	4,217	112,663	-141,122	116,539
	Liabilities and Stockholders’ Equity
	Accounts payable		1	4,149	14	6,581	-2,719	8,026
	Short-term debt		-5	6	5	176	-	182
	Accrued income and other taxes		-	117	-	934	-	1,051
	Employee benefit obligations		-	595	-	283	-	878
	Other accruals		170	337	71	868	-46	1,400
	Total Current Liabilities		166	5,204	90	8,842	-2,765	11,537
	Long-term debt		7,541	8,197	2,974	3,671	-	22,383
	Asset retirement obligations and accrued environmental costs		-	1,328	-	9,319	-	10,647
	Deferred income taxes		-	265	-	14,811	-6	15,070
	Employee benefit obligations		-	2,162	-	802	-	2,964
	Other liabilities and deferred credits*		2,577	7,391	1,142	17,218	-26,663	1,665
	Total Liabilities		10,284	24,547	4,206	54,663	-29,434	64,266
	Retained earnings		37,983	21,448	-1,096	17,355	-31,186	44,504
	Other common stockholders’ equity		7,367	39,152	1,107	40,283	-80,502	7,407
	Noncontrolling interests		-	-	-	362	-	362
	Total Liabilities and Stockholders’ Equity	$	55,634	85,147	4,217	112,663	-141,122	116,539
	*Includes intercompany loans.
Condensed Consolidated Statement of Cash Flows		Millions of Dollars
		Three Months Ended March 31, 2015
	Statement of Cash Flows	ConocoPhillips		ConocoPhillips Company	ConocoPhillips Canada Funding Company I	All Other Subsidiaries	Consolidating Adjustments	Total Consolidated
	Cash Flows From Operating Activities
	Net cash provided by (used in) continuing operating activities	$	-131	-171	1	2,082	89	1,870
	Net cash provided by (used in) discontinued operations		-	-	-	-	-	-
	Net Cash Provided by (Used in) Operating Activities		-131	-171	1	2,082	89	1,870
	Cash Flows From Investing Activities
	Capital expenditures and investments		-	-941	-	-2,759	368	-3,332
	Proceeds from asset dispositions		-	88	-	88	-3	173
	Long-term advances/loans—related parties		-	-72	-	-1,482	1,554	-
	Collection of advances/loans—related parties		-	-	-	52	-	52
	Intercompany cash management		974	-1,085	-	111	-	-
	Other		-	-7	-	-2	-	-9
	Net cash provided by (used in) continuing investing activities		974	-2,017	-	-3,992	1,919	-3,116
	Net cash provided by (used in) discontinued operations		-	-	-	-	-	-
	Net Cash Provided by (Used in) Investing Activities		974	-2,017	-	-3,992	1,919	-3,116
	Cash Flows From Financing Activities
	Issuance of debt		-	1,482	-	72	-1,554	-
	Repayment of debt		-	-	-	-57	-	-57
	Issuance of company common stock		66	-	-	-	-100	-34
	Dividends paid		-910	-	-	-11	11	-910
	Other		1	-	-	346	-365	-18
	Net cash provided by (used in) continuing financing activities		-843	1,482	-	350	-2,008	-1,019
	Net cash used in discontinued operations		-	-	-	-	-	-
	Net Cash Provided by (Used in) Financing Activities		-843	1,482	-	350	-2,008	-1,019
	Effect of Exchange Rate Changes on Cash and Cash Equivalents		-	-	-	-133	-	-133
	Net Change in Cash and Cash Equivalents		-	-706	1	-1,693	-	-2,398
	Cash and cash equivalents at beginning of period		-	770	7	4,285	-	5,062
	Cash and Cash Equivalents at End of Period	$	-	64	8	2,592	-	2,664
		Three Months Ended March 31, 2014
	Statement of Cash Flows		ConocoPhillips	ConocoPhillips Company	ConocoPhillips Canada Funding Company I	All Other Subsidiaries	Consolidating Adjustments	Total Consolidated
	Cash Flows From Operating Activities
	Net cash provided by (used in) continuing operating activities	$	-134	373	1	5,976	62	6,278
	Net cash provided by (used in) discontinued operations		-	100	-	121	-163	58
	Net Cash Provided by (Used in) Operating Activities		-134	473	1	6,097	-101	6,336
	Cash Flows From Investing Activities
	Capital expenditures and investments		-	-662	-	-3,378	145	-3,895
	Proceeds from asset dispositions		-	-1	-	49	-	48
	Net sales (purchases) of short-term investments		-	-	-	63	-	63
	Long-term advances/loans—related parties		-	-44	-	-2	46	-
	Collection of advances/loans—related parties		-	15	-	47	-	62
	Intercompany cash management		1,325	1,486	-	-2,811	-	-
	Other		-	18	-	-6	34	46
	Net cash provided by (used in) continuing investing activities		1,325	812	-	-6,038	225	-3,676
	Net cash provided by (used in) discontinued operations		-	-1	-	-22	1	-22
	Net Cash Provided by (Used in) Investing Activities		1,325	811	-	-6,060	226	-3,698
	Cash Flows From Financing Activities
	Issuance of debt		-	-	-	46	-46	-
	Repayment of debt		-400	-	-	-50	-	-450
	Issuance of company common stock		63	-	-	-	-95	-32
	Dividends paid		-855	-	-	-96	96	-855
	Other		1	-	-	161	-179	-17
	Net cash provided by (used in) continuing financing activities		-1,191	-	-	61	-224	-1,354
	Net cash provided by (used in) discontinued operations		-	-	-	-99	99	-
	Net Cash Provided by (Used in) Financing Activities		-1,191	-	-	-38	-125	-1,354
	Effect of Exchange Rate Changes on Cash and Cash Equivalents		-	-	-	-10	-	-10
	Net Change in Cash and Cash Equivalents		-	1,284	1	-11	-	1,274
	Cash and cash equivalents at beginning of period		-	2,434	229	3,583	-	6,246
	Cash and Cash Equivalents at End of Period	$	-	3,718	230	3,572	-	7,520

Inventories_Details

Inventories (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Inventories
Crude oil and petroleum products	$456	$538
Materials, supplies and other	777	793
Total Inventories	1,233	1,331
Inventories (Textual) [Abstract]
Inventories valued on the LIFO basis	$330	$440

Investments_Loans_and_LongTerm1

Investments, Loans and Long-Term Receivables (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2015	Dec. 31, 2014
Equity method investments
Cumulative foreign currency translation adjustment		($3,360,000,000)	($641,000,000)
Australia Pacific LNG [Member]
Equity method investments
Book value of investment		11,718,000,000
Project finance facility		8,500,000,000
Cumulative foreign currency translation adjustment		671,000,000
Amount drawn from project finance facility		8,300,000,000
Australia Pacific LNG [Member] | Export-Import Bank of the US [Member]
Equity method investments
Project finance facility		2,900,000,000
Australia Pacific LNG [Member] | Export-Import Bank of China [Member]
Equity method investments
Project finance facility		2,700,000,000
Australia Pacific LNG [Member] | Australian and International Commercial Bank Syndicate [Member]
Equity method investments
Project finance facility		2,900,000,000
Qatar Liquefied Gas Company Limited (3) (QG3) [Member]
Equity method investments
Loan balance with affiliated company		857,000,000
FCCL [Member]
Equity method investments
Book value of investment		8,637,000,000
Cumulative foreign currency translation adjustment		1,216,000,000
Distribution from equity affiliate	$1,300,000,000

Suspended_Wells_and_Wells_in_P1

Suspended Wells and Wells in Progress (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Suspended Wells (Textual) [Abstract]
Capitalized cost of suspended wells	$1,310	$1,299
Increase (decrease) in capitalized cost of suspended wells	$11

Debt_Details_Textual

Debt (Details Textual) (USD $)	3 Months Ended
	Mar. 31, 2015	Dec. 31, 2014
Commercial Paper Programs (Textual) [Abstract]
Maturity period of commercial paper (in days)	P90D
Letters of credit issued	$472,000,000
Debt (Textual) [Abstract]
Classification of short-term debt as long-term debt	698,000,000
Revolving Credit Facilities [Member]
Commercial Paper Programs (Textual) [Abstract]
Total amount under revolving credit facilities	7,000,000,000
Letters of credit issued	0
Credit facilities remaining after commercial paper outstanding and issuance of letters of credit	6,200,000,000
ConocoPhillips [Member]
Commercial Paper Programs (Textual) [Abstract]
Commercial paper program.	6,100,000,000
ConocoPhillips Qatar Funding Ltd. [Member]
Commercial Paper Programs (Textual) [Abstract]
Commercial paper program.	900,000,000
Commercial paper outstanding	$806,000,000	$860,000,000

Noncontrolling_Interests_Detai

Noncontrolling Interests (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Activity for equity attributable to noncontrolling interests
Beginning Balance	$52,273	$52,492
Net income	286	2,137
Dividends paid	-910	-855
Distributions to noncontrolling interests	-21	-17
Other	-2,620	-136
Ending Balance	49,008	53,621
Common Stockholders' Equity [Member]
Activity for equity attributable to noncontrolling interests
Beginning Balance	51,911	52,090
Net income	272	2,123
Dividends paid	-910	-855
Other	-2,621	-136
Ending Balance	48,652	53,222
Noncontrolling Interest [Member]
Activity for equity attributable to noncontrolling interests
Beginning Balance	362	402
Net income	14	14
Distributions to noncontrolling interests	-21	-17
Other	1
Ending Balance	$356	$399

Guarantees_Details

Guarantees (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Dec. 31, 2014
Guarantees (Textual) [Abstract]
Environmental accruals for known contamination in carrying amount recorded for indemnifications	$322,000,000	$344,000,000
Australia Pacific APLNG [Member]
Guarantees (Textual) [Abstract]
Ownership percentage in equity investment	37.50%
Train 1 and Train 2 [Member] | Australia Pacific APLNG [Member]
Guarantees (Textual) [Abstract]
Maximum potential amount of future payments	90,000,000
Terms of guarantees outstanding	2 years
Construction completion guarantee [Member] | Australia Pacific APLNG [Member]
Guarantees (Textual) [Abstract]
Maximum potential amount of future payments	3,200,000,000
Maximum potential amount of future payments based on current pro-rata share	3,100,000,000
Carrying value of the guarantee to third-party lenders	114,000,000
Continued development [Member] | Australia Pacific APLNG [Member]
Guarantees (Textual) [Abstract]
Maximum potential amount of future payments	150,000,000
Terms of guarantees outstanding	up to 31 years or the life of the venture
Other Guarantees [Member]
Guarantees (Textual) [Abstract]
Maximum potential amount of future payments	300,000,000
Terms of guarantees outstanding	up to 9 years or the life of the venture
Number Of Joint Ventures Backed By Guarantee	2
Indemnifications [Member]
Guarantees (Textual) [Abstract]
Carrying value of the guarantee to third-party lenders	90,000,000
Environmental accruals for known contamination in carrying amount recorded for indemnifications	40,000,000
Indemnifications [Member] | Refinery Supplier [Member]
Guarantees (Textual) [Abstract]
Maximum potential amount of future payments	1,700,000,000
Terms of guarantees outstanding	9 years
Carrying value of the guarantee to third-party lenders	100,000,000
Carrying value of indemnification asset	100,000,000
Guarantee existing sales agreement of natural gas delivery | Australia Pacific APLNG [Member]
Guarantees (Textual) [Abstract]
Maximum potential amount of future payments	1,200,000,000
Maximum potential amount of future payments under the guarantees in the event of intentional or reckless breach	$2,100,000,000
Terms of guarantees outstanding	1 to 27 years

Contingencies_and_Commitments_

Contingencies and Commitments (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Contingencies and Commitments (Textual) [Abstract]
Total environmental accrual included in balance sheet	$322	$344
Expected years to incur the majority of expenditures	30 years
Letters of credit that secure performance obligations	472
Tax Assessments Paid Under Protest	$237

Derivative_and_Financial_Instr2

Derivative and Financial Instruments - Commodity Balance Sheet (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Prepaid expenses and other current assets [Member]
Derivatives, Fair Value [Line Items]
Commodity derivative assets	$3,593	$4,500
Other assets [Member]
Derivatives, Fair Value [Line Items]
Commodity derivative assets	162	157
Other accruals [Member]
Derivatives, Fair Value [Line Items]
Commodity derivative liabilities	3,590	4,426
Other liabilities and deferred credits [Member]
Derivatives, Fair Value [Line Items]
Commodity derivative liabilities	$157	$144

Derivative_and_Financial_Instr3

Derivative and Financial Instruments - Commodity GainLoss (Details 1) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Sales and other operating revenues [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) from commodity derivatives	($16)	$237
Other Income [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) from commodity derivatives	-1	1
Purchased commodities [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) from commodity derivatives	$44	($221)

Derivative_and_Financial_Instr4

Derivative and Financial Instruments - Commodity Notional (Details 2)	Mar. 31, 2015	Dec. 31, 2014
Natural gas and power, Fixed price [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Commodity derivatives - volumetric material net exposures	-5,000,000,000	-11,000,000,000
Natural gas and power, Basis [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Commodity derivatives - volumetric material net exposures	-3,000,000,000	18,000,000,000

Derivative_and_Financial_Instr5

Derivative and Financial Instruments - FX Balance Sheet (Details 3) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Prepaid Expenses and Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Foreign currency exchange derivative assets	$2	$1
Other Accruals [Member]
Derivatives, Fair Value [Line Items]
Foreign currency exchange derivative liabilities	$21	$1

Derivative_and_Financial_Instr6

Derivative and Financial Instruments - FX GainLoss (Details 4) (Foreign currency transaction (gains) losses [Member], USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Foreign currency transaction (gains) losses [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Foreign currency transaction (gains) losses	$24	$0

Derivative_and_Financial_Instr7

Derivative and Financial Instruments - FX Notional (Details 5) (Foreign Currency Exchange Derivative [Member])	Mar. 31, 2015		Dec. 31, 2014		Mar. 31, 2015		Dec. 31, 2014		Dec. 31, 2014	Mar. 31, 2015
In Millions, unless otherwise specified	Sell US Dollar Buy Other Currencies [Member]		Sell US Dollar Buy Other Currencies [Member]		Buy U.S. dollar, sell other currencies [Member]		Buy U.S. dollar, sell other currencies [Member]		Buy British pound, sell euro [Member]	Sell British pound, buy euro [Member]
	USD ($)		USD ($)		USD ($)		USD ($)		GBP (£)	GBP (£)
Trading Activity, Gains and Losses, Net [Line Items]
Net notional position of foreign currency exchange derivatives	$624	[1]	$7	[1]	$9	[2]	$44	[2]	£ 20	£ 7
[1]	*Primarily Canadian dollar, Norwegian krone and British pound.
[2]	**Primarily Canadian dollar, Norwegian krone and euro.

Derivative_and_Financial_Instr8

Derivative and Financial Instruments - Financial Instruments (Details 6) (USD $)	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Schedule of Held-to-maturity Securities [Line Items]
Cash and cash equivalents Total	$2,664	$5,062	$7,520	$6,246
Cash and Cash Equivalents [Member]
Schedule of Held-to-maturity Securities [Line Items]
Cash	535	946
Time Deposits	2,129	3,726
Commercial Paper		340
Money Market Funds		$50

Derivative_and_Financial_Instr9

Derivative and Financial Instruments (Details Textual) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Schedule of Credit Risk [Line items]
Aggregate fair value of all derivative instruments in a liability position	121	$150
Collateral was posted for derivative instruments in a liability position	0	0
Trade receivables [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Terms of financial instruments and trade receivables	30 days
In event of downgrade below investment grade [Member]
Schedule of Credit Risk [Line items]
Additional collateral, either in the form of cash or letters of credit	121

Fair_Value_Measurement_FV_Hier

Fair Value Measurement - FV Hierarchy (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred compensation investments	$296	$297
Commodity derivative asset, gross	3,755	4,657
Total assets	4,051	4,954
Commodity derivative liability, gross	3,747	4,570
Total liabilities	3,747	4,570
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred compensation investments	296	297
Commodity derivative asset, gross	3,452	4,221
Total assets	3,748	4,518
Commodity derivative liability, gross	3,481	4,200
Total liabilities	3,481	4,200
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Commodity derivative asset, gross	232	361
Total assets	232	361
Commodity derivative liability, gross	254	354
Total liabilities	254	354
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Commodity derivative asset, gross	71	75
Total assets	71	75
Commodity derivative liability, gross	12	16
Total liabilities	$12	$16

Fair_Value_Measurement_FV_of_C

Fair Value Measurement - FV of Commodity Derivatives (Details 1) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Offsetting Derivative Assets[Abstract]
Assets - gross amounts recognized	$3,755	$4,657
Assets - gross amounts offset	3,550	4,352
Assets - net amounts presented	205	305
Assets - cash collateral	7	8
Assets - amounts without right of setoff	13	28
Assets - net amounts	185	269
Offsetting Derivative Liabilities [Abstract]
Liabilities - gross amounts recognized	3,747	4,570
Liabilities - gross amounts offset	3,550	4,352
Liabilities - net amounts presented	197	218
Liabilities - cash collateral	37	4
Liabilities - amounts without right of setoff	10	22
Liabilities - net amounts	$150	$192

Fair_Value_Measurement_FV_of_F

Fair Value Measurement - FV of Fin. Instruments (Details 2) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Financial Assets [Abstract]
Deferred compensation investments	$296	$297
Commodity derivatives, assets	205	305
Financial Liabilities [Abstract]
Commodity derivatives, liabilities	197	218
Carrying Amount [Member]
Financial Assets [Abstract]
Deferred compensation investments	296	297
Commodity derivatives, assets	198	297
Total loans and advances - related parties	859	913
Financial Liabilities [Abstract]
Total debt, excluding capital leases, carrying amount	21,650	21,707
Commodity derivatives, liabilities	160	214
Fair Value [Member]
Financial Assets [Abstract]
Deferred compensation investments	296	297
Commodity derivatives, assets	198	297
Total loans and advances - related parties	859	913
Financial Liabilities [Abstract]
Total debt, excluding capital leases, fair value	25,460	25,191
Commodity derivatives, liabilities	$160	$214

Accumulated_Other_Comprehensiv2

Accumulated Other Comprehensive Income (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Accumulated other comprehensive income in the equity section of the balance sheet included
Defined Benefit Plans, Beginning Balance	($1,261)
Foreign Currency Translation, Beginning Balance	-641
Accumulated Other Comprehensive Income, Beginning Balance	-1,902
Defined Benefit Plans	32	26
Foreign Currency Translation	-2,719	-226
Other Comprehensive Income, Net of Tax	-2,687	-200
Defined Benefit Plans, Ending Balance	-1,229
Foreign Currency Translation, Ending Balance	-3,360
Accumulated Other Comprehensive Income, Ending Balance	($4,589)

Accumulated_Other_Comprehensiv3

Accumulated Other Comprehensive Income (Details 1) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015		Mar. 31, 2014
Reclassification out of Accumulated Other Comprehensive Income [Abstract]
Defined Benefit Plans	$32	[1]	$20	[1]
Tax expense of defined benefit plans	$17		$11
[1]	The above amounts are included in the computation of net periodic benefit cost and are presented net of tax expense of $17 million and$11 million for the three-month periods ended March 31, 2015 and 2014, respectively. See Note 14bEmployee Benefit Plans, for additional

Cash_Flow_Information_Details

Cash Flow Information (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015		Mar. 31, 2014
Cash payments
Interest	$197		$199
Income taxes	-253	[1]	667
Net Purchases of Short-Term Investments
Short-term investments purchased	0		-210
Short-term investments sold	0		273
Net sale (purchases) of short-term investments			$63
[1]	*Includes $556 million in 2015 related to a refund received from the Internal Revenue Service for 2014 overpaid taxes.

Employee_Benefit_Plans_Details

Employee Benefit Plans (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Supplemental Unemployment Benefits [Line Items]
Foreign currency translation adjustments	($2,745,000,000)	($222,000,000)
Employee Severance
Supplemental Unemployment Benefits [Line Items]
Severance Accrual	129,000,000		61,000,000
Payments For Postemployment Benefits	-13,000,000
Severance accrual current period change	85,000,000
Foreign currency translation adjustments	-4,000,000
Short term portion of severance accrual	88,000,000
Corporate and Other [Member]
Supplemental Unemployment Benefits [Line Items]
Severance accrual current period change	33,000,000
Lower 48 [Member]
Supplemental Unemployment Benefits [Line Items]
Severance accrual current period change	25,000,000
Canada [Member]
Supplemental Unemployment Benefits [Line Items]
Severance accrual current period change	24,000,000
Alaska [Member]
Supplemental Unemployment Benefits [Line Items]
Severance accrual current period change	2,000,000
Asia Pacific and Middle East [Member]
Supplemental Unemployment Benefits [Line Items]
Severance accrual current period change	1,000,000
U.S. (Pension Benefits) [Member]
Components of Net Periodic Benefit Cost
Service cost	36,000,000	31,000,000
Interest cost	40,000,000	41,000,000
Expected return on plan assets	-54,000,000	-53,000,000
Amortization of prior service cost	2,000,000	1,000,000
Recognized net actuarial (gain) loss	28,000,000	19,000,000
Net periodic benefit cost	52,000,000	39,000,000
Int'l (Pension Benefits) [Member]
Components of Net Periodic Benefit Cost
Service cost	32,000,000	28,000,000
Interest cost	34,000,000	42,000,000
Expected return on plan assets	-44,000,000	-46,000,000
Amortization of prior service cost	-2,000,000	-2,000,000
Recognized net actuarial (gain) loss	21,000,000	15,000,000
Net periodic benefit cost	41,000,000	37,000,000
Other Benefits [Member]
Components of Net Periodic Benefit Cost
Service cost	1,000,000	1,000,000
Interest cost	7,000,000	7,000,000
Expected return on plan assets	0	0
Amortization of prior service cost	-1,000,000	-1,000,000
Recognized net actuarial (gain) loss	1,000,000	-1,000,000
Net periodic benefit cost	$8,000,000	$6,000,000

Employee_Benefit_Plans_Details1

Employee Benefit Plans (Details Textual) (USD $)	3 Months Ended
	Mar. 31, 2015
U.S. (Pension Benefits) [Member]
Employee Benefit Plans (Textual) [Abstract]
Company contributions	$14,000,000
Expected company contributions	110,000,000
Int'l (Pension Benefits) [Member]
Employee Benefit Plans (Textual) [Abstract]
Company contributions	44,000,000
Expected company contributions	120,000,000
Europe [Member]
Employee Benefit Plans (Textual) [Abstract]
Special pension termination benefits	$50,000,000
Special pension termination benefits recoverable from partner	62.00%

Related_Party_Transactions_Det

Related Party Transactions (Details) (USD $)	3 Months Ended
	Mar. 31, 2015		Mar. 31, 2014
Significant transactions with related parties
Operating revenues and other income	$25,000,000		$21,000,000
Purchases	22,000,000		48,000,000
Operating expenses and selling, general and administrative expenses	18,000,000		18,000,000	[1]
Net interest (income) expense	($2,000,000)	[2]	($12,000,000)	[2]
[1]	*2014 has been restated to eliminate certain non-related party transactions.
[2]	**We paid interest to, or received interest from various affiliates. See Note 4bInvestments, Loans and Long-Term Receivables, for additionalinformation on loans to affiliated companies.

Segment_Disclosures_and_Relate2

Segment Disclosures and Related Information - Sales (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Segment Reporting Information [Line Items]
Sales and other operating revenues	$7,716	$15,415
Alaska [Member]
Segment Reporting Information [Line Items]
Sales and other operating revenues	1,050	2,186
Lower 48 Before Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Sales and other operating revenues	3,139	6,584
Intersegment Eliminations before Lower 48 and Latin America [Member]
Segment Reporting Information [Line Items]
Sales and other operating revenues	-22	-38
Lower 48 [Member]
Segment Reporting Information [Line Items]
Sales and other operating revenues	3,117	6,546
Canada before Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Sales and other operating revenues	703	1,859
Intersegment Eliminations before Canada [Member]
Segment Reporting Information [Line Items]
Sales and other operating revenues	-110	-345
Canada [Member]
Segment Reporting Information [Line Items]
Sales and other operating revenues	593	1,514
Europe before Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Sales and other operating revenues	1,554	3,209
Asia Pacific Before Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Sales and other operating revenues	1,388	1,949
Other International [Member]
Segment Reporting Information [Line Items]
Sales and other operating revenues	-5	2
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Sales and other operating revenues	$19	$9

Segment_Disclosures_and_Relate3

Segment Disclosures and Related Information - Net Income (Details 1) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Net Income Attributable to ConocoPhillips
Consolidated net income attributable to ConocoPhillips	$272	$2,123
Alaska [Member]
Net Income Attributable to ConocoPhillips
Consolidated net income attributable to ConocoPhillips	145	598
Lower 48 [Member]
Net Income Attributable to ConocoPhillips
Consolidated net income attributable to ConocoPhillips	-405	324
Canada [Member]
Net Income Attributable to ConocoPhillips
Consolidated net income attributable to ConocoPhillips	-158	356
Europe [Member]
Net Income Attributable to ConocoPhillips
Consolidated net income attributable to ConocoPhillips	637	347
Asia Pacific and Middle East [Member]
Net Income Attributable to ConocoPhillips
Consolidated net income attributable to ConocoPhillips	395	742
Other International [Member]
Net Income Attributable to ConocoPhillips
Consolidated net income attributable to ConocoPhillips	-93	-29
Corporate and Other [Member]
Net Income Attributable to ConocoPhillips
Consolidated net income attributable to ConocoPhillips	-249	-235
Discontinued operations [Member]
Net Income Attributable to ConocoPhillips
Consolidated net income attributable to ConocoPhillips	$0	$20

Segment_Disclosures_and_Relate4

Segment Disclosures and Related Information - Assets (Details 2) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Assets [Abstract]
Consolidated total assets	$110,042	$116,539
Alaska [Member]
Assets [Abstract]
Consolidated total assets	12,913	12,655
Lower 48 [Member]
Assets [Abstract]
Consolidated total assets	29,905	30,185
Canada [Member]
Assets [Abstract]
Consolidated total assets	20,035	21,764
Europe [Member]
Assets [Abstract]
Consolidated total assets	15,020	16,125
Asia Pacific and Middle East [Member]
Assets [Abstract]
Consolidated total assets	25,015	25,976
Other International [Member]
Assets [Abstract]
Consolidated total assets	2,025	1,961
Corporate and Other [Member]
Assets [Abstract]
Consolidated total assets	5,129	7,815
Discontinued operations [Member]
Assets [Abstract]
Consolidated total assets	$0	$58

Segment_Disclosures_and_Relate5

Segment Disclosures and Related Information (Details Textual)	3 Months Ended
	Mar. 31, 2015
Segment Disclosures and Related Information (Textual) [Abstract]
Number of operating segments	6

Income_Taxes_Details

Income Taxes (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Income Taxes (Textual) [Abstract]
Effective tax rate	180.00%	43.00%
Domestic federal statutory rate	35.00%
Tax Benefit	$555
UK Upstream Corporation Tax Rate pre legislation	62.00%
UK Upstream Corporation Tax Rate post legislation	50.00%

Supplementary_Information_Cond2

Supplementary Information - Condensed Consolidating Financial Information - Inc Stmt (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Revenues and Other Income
Sales and other operating revenues	$7,716	$15,415
Equity in earnings of affiliates	205	572
Gain (loss) on dispositions	52	9
Other income	29	52
Total Revenues and Other Income	8,002	16,048
Costs and Expenses
Purchased commodities	3,237	7,127
Production and operating expenses	1,802	1,895
Selling, general and administrative expenses	159	182
Exploration expenses	482	296
Depreciation, depletion and amortization	2,131	1,892
Impairments	16	1
Taxes other than income taxes	224	651
Accretion on discounted liabilities	121	117
Interest and debt expense	202	171
Foreign currency transaction (gains) losses	-16	18
Total Costs and Expenses	8,358	12,350
Income from continuing operations before income taxes	-356	3,698
Provision for income taxes	-642	1,581
Income (Loss) From Continuing Operations	286	2,117
Income (loss) from discontinued operations		20	[1]
Net income (loss)	286	2,137
Less: net income attributable to noncontrolling interests	-14	-14
Net Income	272	2,123
Comprehensive Income Attributable to ConocoPhillips	-2,415	1,923
ConocoPhillips [Member]
Revenues and Other Income
Equity in earnings of affiliates	381	2,212
Other income	0
Intercompany revenues	19	20
Total Revenues and Other Income	400	2,232
Costs and Expenses
Selling, general and administrative expenses	3	3
Interest and debt expense	121	159
Foreign currency transaction (gains) losses	63	25
Total Costs and Expenses	187	187
Income from continuing operations before income taxes	213	2,045
Provision for income taxes	-59	-58
Income (Loss) From Continuing Operations	272	2,103
Income (loss) from discontinued operations	0	20
Net income (loss)	272	2,123
Net Income	272	2,123
Comprehensive Income Attributable to ConocoPhillips	-2,415	1,923
ConocoPhillips Company [Member]
Revenues and Other Income
Sales and other operating revenues	2,933	6,143
Equity in earnings of affiliates	813	2,451
Gain (loss) on dispositions	31	-1
Other income	7	18
Intercompany revenues	98	154
Total Revenues and Other Income	3,882	8,765
Costs and Expenses
Purchased commodities	2,560	5,517
Production and operating expenses	400	360
Selling, general and administrative expenses	120	124
Exploration expenses	200	144
Depreciation, depletion and amortization	259	242
Impairments	0	1
Taxes other than income taxes	69	93
Accretion on discounted liabilities	14	14
Interest and debt expense	101	70
Foreign currency transaction (gains) losses	-1	0
Total Costs and Expenses	3,722	6,565
Income from continuing operations before income taxes	160	2,200
Provision for income taxes	-221	-12
Income (Loss) From Continuing Operations	381	2,212
Income (loss) from discontinued operations	0	20
Net income (loss)	381	2,232
Net Income	381	2,232
Comprehensive Income Attributable to ConocoPhillips	-2,306	2,032
ConocoPhillips Canada Funding Company I [Member]
Revenues and Other Income
Intercompany revenues	64	71
Total Revenues and Other Income	64	71
Costs and Expenses
Selling, general and administrative expenses	0
Interest and debt expense	57	58
Foreign currency transaction (gains) losses	-378	-139
Total Costs and Expenses	-321	-81
Income from continuing operations before income taxes	385	152
Provision for income taxes	11	2
Income (Loss) From Continuing Operations	374	150
Net income (loss)	374	150
Net Income	374	150
Comprehensive Income Attributable to ConocoPhillips	30	9
All Other Subsidiaries [Member]
Revenues and Other Income
Sales and other operating revenues	4,783	9,272
Equity in earnings of affiliates	578	721
Gain (loss) on dispositions	21	10
Other income	22	34
Intercompany revenues	843	1,643
Total Revenues and Other Income	6,247	11,680
Costs and Expenses
Purchased commodities	1,494	3,290
Production and operating expenses	1,434	1,538
Selling, general and administrative expenses	45	69
Exploration expenses	282	152
Depreciation, depletion and amortization	1,872	1,650
Impairments	16	0
Taxes other than income taxes	155	558
Accretion on discounted liabilities	107	103
Interest and debt expense	89	75
Foreign currency transaction (gains) losses	300	132
Total Costs and Expenses	5,794	7,567
Income from continuing operations before income taxes	453	4,113
Provision for income taxes	-373	1,649
Income (Loss) From Continuing Operations	826	2,464
Income (loss) from discontinued operations	0	20
Net income (loss)	826	2,484
Less: net income attributable to noncontrolling interests	-14	-14
Net Income	812	2,470
Comprehensive Income Attributable to ConocoPhillips	-1,874	2,255
Consolidating Adjustments [Member]
Revenues and Other Income
Equity in earnings of affiliates	-1,567	-4,812
Intercompany revenues	-1,024	-1,888
Total Revenues and Other Income	-2,591	-6,700
Costs and Expenses
Purchased commodities	-817	-1,680
Production and operating expenses	-32	-3
Selling, general and administrative expenses	-9	-14
Interest and debt expense	-166	-191
Total Costs and Expenses	-1,024	-1,888
Income from continuing operations before income taxes	-1,567	-4,812
Income (Loss) From Continuing Operations	-1,567	-4,812
Income (loss) from discontinued operations	0	-40
Net income (loss)	-1,567	-4,852
Net Income	-1,567	-4,852
Comprehensive Income Attributable to ConocoPhillips	$4,150	($4,296)
[1]	*Net of provision for income taxes on discontinued operations of: $0, $32

Supplementary_Information_Cond3

Supplementary Information - Condensed Consolidating Financial Information - Bal Sheet (Details 1) (USD $)	Mar. 31, 2015		Dec. 31, 2014		Mar. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Assets
Cash and cash equivalents	$2,664		$5,062		$7,520	$6,246
Accounts and notes receivable	5,379		6,807
Inventories	1,233		1,331
Prepaid expenses and other current assets	1,564		1,868
Total Current Assets	10,840		15,068
Investments, loans and long-term receivables	23,974	[1]	25,139	[1]
Net properties, plants and equipment	74,220		75,444
Other assets	1,008		888
Total Assets	110,042		116,539
Liabilities and Stockholders' Equity
Accounts payable and related party accounts payable	6,750		8,026
Short-term debt	193		182
Accrued income and other taxes	864		1,051
Employee benefit obligations	552		878
Other accruals	1,204		1,400
Total Current Liabilities	9,563		11,537
Long-term debt	22,318		22,383
Asset retirement obligations and accrued environmental costs	10,304		10,647
Deferred income taxes	14,042		15,070
Employee benefit obligations	2,979		2,964
Other liabilities and deferred credits	1,828		1,665
Total Liabilities	61,034		64,266
Retained earnings	43,867		44,504
Other common stockholders' equity	4,785		7,407
Noncontrolling interests	356		362
Total Liabilities and Stockholders' Equity	110,042		116,539
ConocoPhillips [Member]
Assets
Accounts and notes receivable	18		20
Prepaid expenses and other current assets	6		6
Total Current Assets	24		26
Investments, loans and long-term receivables	53,220	[1]	55,568	[1]
Net properties, plants and equipment			0
Other assets	39		40
Total Assets	53,283		55,634
Liabilities and Stockholders' Equity
Accounts payable and related party accounts payable			1
Short-term debt	-5		-5
Accrued income and other taxes			0
Employee benefit obligations			0
Other accruals	101		170
Total Current Liabilities	96		166
Long-term debt	7,542
Asset retirement obligations and accrued environmental costs			7,541
Other liabilities and deferred credits	3,552	[1]	2,577	[1]
Total Liabilities	11,190		10,284
Retained earnings	37,345		37,983
Other common stockholders' equity	4,748		7,367
Total Liabilities and Stockholders' Equity	53,283		55,634
ConocoPhillips Company [Member]
Assets
Cash and cash equivalents	64		770		3,718	2,434
Accounts and notes receivable	1,936		2,813
Inventories	170		281
Prepaid expenses and other current assets	668		754
Total Current Assets	2,838		4,618
Investments, loans and long-term receivables	70,182	[1]	70,732	[1]
Net properties, plants and equipment	9,910		9,730
Other assets	171		67
Total Assets	83,101		85,147
Liabilities and Stockholders' Equity
Accounts payable and related party accounts payable	4,477		4,149
Short-term debt	6		6
Accrued income and other taxes	67		117
Employee benefit obligations	401		595
Other accruals	332		337
Total Current Liabilities	5,283		5,204
Long-term debt	8,195		8,197
Asset retirement obligations and accrued environmental costs	1,335		1,328
Deferred income taxes	244		265
Employee benefit obligations	2,169		2,162
Other liabilities and deferred credits	7,583	[1]	7,391	[1]
Total Liabilities	24,809		24,547
Retained earnings	21,828		21,448
Other common stockholders' equity	36,464		39,152
Noncontrolling interests			0
Total Liabilities and Stockholders' Equity	83,101		85,147
ConocoPhillips Canada Funding Company I [Member]
Assets
Cash and cash equivalents	8		7		230	229
Accounts and notes receivable	20		22
Prepaid expenses and other current assets	23		15
Total Current Assets	51		44
Investments, loans and long-term receivables	3,760	[1]	3,965	[1]
Other assets	357		208
Total Assets	4,168		4,217
Liabilities and Stockholders' Equity
Accounts payable and related party accounts payable	15		14
Short-term debt	6		5
Other accruals	85		71
Total Current Liabilities	106		90
Long-term debt	2,973		2,974
Other liabilities and deferred credits	1,048	[1]	1,142	[1]
Total Liabilities	4,127		4,206
Retained earnings	-722		-1,096
Other common stockholders' equity	763		1,107
Total Liabilities and Stockholders' Equity	4,168		4,217
All Other Subsidiaries [Member]
Assets
Cash and cash equivalents	2,592		4,285		3,572	3,583
Short-term investments	0		0
Accounts and notes receivable	6,989		6,671
Inventories	1,063		1,050
Prepaid expenses and other current assets	912		1,138
Total Current Assets	11,556		13,144
Investments, loans and long-term receivables	30,685	[1]	32,467	[1]
Net properties, plants and equipment	64,310		65,714
Other assets	1,198		1,338
Total Assets	107,749		112,663
Liabilities and Stockholders' Equity
Accounts payable and related party accounts payable	5,842		6,581
Short-term debt	186		176
Accrued income and other taxes	797		934
Employee benefit obligations	151		283
Other accruals	731		868
Total Current Liabilities	7,707		8,842
Long-term debt	3,608		3,671
Asset retirement obligations and accrued environmental costs	8,969		9,319
Deferred income taxes	13,804		14,811
Employee benefit obligations	810		802
Other liabilities and deferred credits	16,370	[1]	17,218	[1]
Total Liabilities	51,268		54,663
Retained earnings	18,163		17,355
Other common stockholders' equity	37,962		40,283
Noncontrolling interests	356		362
Total Liabilities and Stockholders' Equity	107,749		112,663
Consolidating Adjustments [Member]
Assets
Accounts and notes receivable	-3,584		-2,719
Prepaid expenses and other current assets	-45		-45
Total Current Assets	-3,629		-2,764
Investments, loans and long-term receivables	-133,873	[1]	-137,593	[1]
Other assets	-757		-765
Total Assets	-138,259		-141,122
Liabilities and Stockholders' Equity
Accounts payable and related party accounts payable	-3,584		-2,719
Accrued income and other taxes			0
Other accruals	-45		-46
Total Current Liabilities	-3,629		-2,765
Deferred income taxes	-6		-6
Other liabilities and deferred credits	-26,725	[1]	-26,663	[1]
Total Liabilities	-30,360		-29,434
Retained earnings	-32,747		-31,186
Other common stockholders' equity	-75,152		-80,502
Total Liabilities and Stockholders' Equity	($138,259)		($141,122)
[1]	*Includes intercompany loans.

Supplementary_Information_Cond4

Supplementary Information - Condensed Consolidating Financial Information - Bal Sheet (Details Textual) (USD $)	Mar. 31, 2015
In Billions, unless otherwise specified
ConocoPhillips [Member]
Condensed Financial Statements, Captions [Line Items]
Intercompany other liabilities	$2
Intercompany Investment	-2
ConocoPhillips Company [Member]
Condensed Financial Statements, Captions [Line Items]
Intercompany other liabilities	-2
Intercompany return of capital	$2

Supplementary_Information_Cond5

Supplementary Information - Condensed Consolidating Financial Information - Cash Flow (Details 2) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Cash Flows From Operating Activities
Net cash provided by (used in) continuing operating activities	$1,870	$6,278
Net cash provided by (used in) discontinued operations	0	58
Net Cash Provided by (Used in) Operating Activities	1,870	6,336
Cash Flows From Investing Activities
Capital expenditures and investments	-3,332	-3,895
Proceeds from asset dispositions	173	48
Net sales (purchases) of short-term investments		63
Collection of advances/loans-related parties	52	62
Other	-9	46
Net cash provided by (used in) continuing investing activities	-3,116	-3,676
Net cash used in discontinued operations	0	-22
Net Cash Provided by (Used in) Investing Activities	-3,116	-3,698
Cash Flows From Financing Activities
Repayment of debt	-57	-450
Issuance of company common stock	-34	-32
Dividends paid	-910	-855
Other	-18	-17
Net cash provided by (used in) continuing financing activities	-1,019	-1,354
Net Cash Provided by (Used in) Financing Activities	-1,019	-1,354
Effect of Exchange Rate Changes on Cash and Cash Equivalents	-133	-10
Net Change in Cash and Cash Equivalents	-2,398	1,274
Cash and cash equivalents at beginning of period	5,062	6,246
Cash and Cash Equivalents at End of Period	2,664	7,520
ConocoPhillips [Member]
Cash Flows From Operating Activities
Net cash provided by (used in) continuing operating activities	-131	-134
Net cash provided by (used in) discontinued operations		0
Net Cash Provided by (Used in) Operating Activities	-131	-134
Cash Flows From Investing Activities
Intercompany cash management	974	1,325
Net cash provided by (used in) continuing investing activities	974	1,325
Net Cash Provided by (Used in) Investing Activities	974	1,325
Cash Flows From Financing Activities
Repayment of debt	0	-400
Issuance of company common stock	66	63
Dividends paid	-910	-855
Other	1	1
Net cash provided by (used in) continuing financing activities	-843	-1,191
Net Cash Provided by (Used in) Financing Activities	-843	-1,191
Net Change in Cash and Cash Equivalents		0
ConocoPhillips Company [Member]
Cash Flows From Operating Activities
Net cash provided by (used in) continuing operating activities	-171	373
Net cash provided by (used in) discontinued operations	0	100
Net Cash Provided by (Used in) Operating Activities	-171	473
Cash Flows From Investing Activities
Capital expenditures and investments	-941	-662
Proceeds from asset dispositions	88	-1
Long-term advances/loans-related parties	-72	-44
Collection of advances/loans-related parties	0	15
Intercompany cash management	-1,085	1,486
Other	-7	18
Net cash provided by (used in) continuing investing activities	-2,017	812
Net cash used in discontinued operations	0	-1
Net Cash Provided by (Used in) Investing Activities	-2,017	811
Cash Flows From Financing Activities
Issuance of debt	1,482
Repayment of debt	0
Dividends paid	0
Other	0
Net cash provided by (used in) continuing financing activities	1,482
Net Cash Provided by (Used in) Financing Activities	1,482
Net Change in Cash and Cash Equivalents	-706	1,284
Cash and cash equivalents at beginning of period	770	2,434
Cash and Cash Equivalents at End of Period	64	3,718
ConocoPhillips Canada Funding Company I [Member]
Cash Flows From Operating Activities
Net cash provided by (used in) continuing operating activities	1	1	[1]
Net Cash Provided by (Used in) Operating Activities	1	1	[1]
Cash Flows From Investing Activities
Collection of advances/loans-related parties		0	[1]
Net cash provided by (used in) continuing investing activities		0	[1]
Net Cash Provided by (Used in) Investing Activities		0	[1]
Cash Flows From Financing Activities
Net Change in Cash and Cash Equivalents	1	1	[1]
Cash and cash equivalents at beginning of period	7	229
Cash and Cash Equivalents at End of Period	8	230
All Other Subsidiaries [Member]
Cash Flows From Operating Activities
Net cash provided by (used in) continuing operating activities	2,082	5,976	[1]
Net cash provided by (used in) discontinued operations	0	121	[1]
Net Cash Provided by (Used in) Operating Activities	2,082	6,097	[1]
Cash Flows From Investing Activities
Capital expenditures and investments	-2,759	-3,378
Proceeds from asset dispositions	88	49
Net sales (purchases) of short-term investments		63	[1]
Long-term advances/loans-related parties	-1,482	-2	[1]
Collection of advances/loans-related parties	52	47	[1]
Intercompany cash management	111	-2,811	[1]
Other	-2	-6	[1]
Net cash provided by (used in) continuing investing activities	-3,992	-6,038	[1]
Net cash used in discontinued operations	0	-22	[1]
Net Cash Provided by (Used in) Investing Activities	-3,992	-6,060	[1]
Cash Flows From Financing Activities
Issuance of debt	72	46	[1]
Repayment of debt	-57	-50	[1]
Dividends paid	-11	-96	[1]
Other	346	161	[1]
Net cash provided by (used in) continuing financing activities	350	61	[1]
Net cash provided by (used in) discontinued operations	0	-99	[1]
Net Cash Provided by (Used in) Financing Activities	350	-38	[1]
Effect of Exchange Rate Changes on Cash and Cash Equivalents	-133	-10	[1]
Net Change in Cash and Cash Equivalents	-1,693	-11	[1]
Cash and cash equivalents at beginning of period	4,285	3,583
Cash and Cash Equivalents at End of Period	2,592	3,572
Consolidating Adjustments [Member]
Cash Flows From Operating Activities
Net cash provided by (used in) continuing operating activities	89	62	[1]
Net cash provided by (used in) discontinued operations	0	-163	[1]
Net Cash Provided by (Used in) Operating Activities	89	-101	[1]
Cash Flows From Investing Activities
Capital expenditures and investments	368	145
Proceeds from asset dispositions	-3
Long-term advances/loans-related parties	1,554	46	[1]
Collection of advances/loans-related parties	0	0	[1]
Other		34
Net cash provided by (used in) continuing investing activities	1,919	225	[1]
Net cash used in discontinued operations	0	1	[1]
Net Cash Provided by (Used in) Investing Activities	1,919	226	[1]
Cash Flows From Financing Activities
Issuance of debt	-1,554	-46	[1]
Repayment of debt	0	0	[1]
Issuance of company common stock	-100	-95	[1]
Dividends paid	11	96	[1]
Other	-365	-179	[1]
Net cash provided by (used in) continuing financing activities	-2,008	-224	[1]
Net cash provided by (used in) discontinued operations	0	99	[1]
Net Cash Provided by (Used in) Financing Activities	($2,008)	($125)	[1]
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