Apache 10-Q 4 Aug 17 2017 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2017	Jul. 31, 2017
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2017
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q2
Trading Symbol	APA
Entity Registrant Name	APACHE CORP
Entity Central Index Key	6,769
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		380,934,131

STATEMENT OF CONSOLIDATED OPERA

STATEMENT OF CONSOLIDATED OPERATIONS (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Oil and gas production revenues
Oil and Gas Production Revenues	$ 1,346	$ 1,386	$ 2,858	$ 2,473
Other	59	(21)	84	(24)
Gain (loss) on divestitures	(21)	17	320	16
Total revenues and other	1,384	1,382	3,262	2,465
OPERATING EXPENSES:
Lease operating expenses	372	359	708	737
Gathering and transportation	48	52	105	104
Taxes other than income	29	65	71	76
Exploration	108	91	200	186
General and administrative	106	103	209	196
Transaction, reorganization, and separation	4	9	(6)	24
Depreciation, depletion, and amortization:
Depreciation, depletion and amortization	572	669	1,148	1,347
Asset retirement obligation accretion	37	38	73	76
Impairments	0	173	8	173
Financing costs, net	99	104	199	209
Total operating expenses	1,375	1,663	2,715	3,128
NET INCOME (LOSS) BEFORE INCOME TAXES	9	(281)	547	(663)
Current income tax provision	126	144	314	134
Deferred income tax benefit	(730)	(225)	(647)	(226)
NET INCOME (LOSS) INCLUDING NONCONTROLLING INTEREST	613	(200)	880	(571)
Net income attributable to noncontrolling interest	41	44	95	45
NET INCOME (LOSS) ATTRIBUTABLE TO COMMON STOCK	$ 572	$ (244)	$ 785	$ (616)
NET INCOME (LOSS) PER COMMON SHARE:
Basic (in USD per share)	$ 1.50	$ (0.65)	$ 2.06	$ (1.63)
Diluted (in USD per share)	$ 1.50	$ (0.65)	$ 2.05	$ (1.63)
WEIGHTED-AVERAGE NUMBER OF COMMON SHARES OUTSTANDING:
Basic (in shares)	381	379	380	379
Diluted (in shares)	383	379	383	379
DIVIDENDS DECLARED PER COMMON SHARE (in USD per share)	$ 0.25	$ 0.25	$ 0.50	$ 0.5
Oil and gas property and equipment [Member]
Depreciation, depletion, and amortization:
Depreciation, depletion and amortization	$ 536	$ 629	$ 1,074	$ 1,265
Other assets [Member]
Depreciation, depletion, and amortization:
Depreciation, depletion and amortization	36	40	74	82
Oil revenues [Member]
Oil and gas production revenues
Oil and Gas Production Revenues	1,050	1,118	2,222	1,940
Gas revenues [Member]
Oil and gas production revenues
Oil and Gas Production Revenues	233	209	488	432
Natural gas liquids revenues [Member]
Oil and gas production revenues
Oil and Gas Production Revenues	$ 63	$ 59	$ 148	$ 101

STATEMENT OF CONSOLIDATED CASH

STATEMENT OF CONSOLIDATED CASH FLOWS (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss) including noncontrolling interest	$ 880	$ (571)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Gain on divestitures	(320)	(16)
Exploratory dry hole expense and unproved leasehold impairments	152	139
Depreciation, depletion, and amortization	1,148	1,347
Asset retirement obligation accretion	73	76
Impairments	8	173
Deferred income tax benefit	(647)	(226)
Other	39	91
Changes in operating assets and liabilities:
Receivables	62	237
Inventories	20	1
Drilling advances	(20)	(30)
Deferred charges and other	(90)	(65)
Accounts payable	(37)	(118)
Accrued expenses	(86)	(57)
Deferred credits and noncurrent liabilities	24	2
NET CASH PROVIDED BY OPERATING ACTIVITIES	1,206	983
CASH FLOWS FROM INVESTING ACTIVITIES:
Additions to oil and gas property	(883)	(925)
Leasehold and property acquisitions	(67)	(118)
Additions to gas gathering, transmission, and processing facilities	(274)	0
Proceeds from sale of Midale and House Mountain	228	0
Proceeds from sale of oil and gas properties	483	48
Other, net	(16)	29
NET CASH USED IN INVESTING ACTIVITIES	(529)	(966)
CASH FLOWS FROM FINANCING ACTIVITIES:
Payments on fixed-rate debt	(70)	0
Distributions to noncontrolling interest	(170)	(93)
Dividends paid	(190)	(189)
Other	43	(1)
NET CASH USED IN FINANCING ACTIVITIES	(387)	(283)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	290	(266)
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR	1,377	1,467
CASH AND CASH EQUIVALENTS AT END OF PERIOD	1,667	1,201
SUPPLEMENTARY CASH FLOW DATA:
Interest paid, net of capitalized interest	202	206
Income taxes paid, net of refunds	$ 163	$ 201

CONSOLIDATED BALANCE SHEET (Una

CONSOLIDATED BALANCE SHEET (Unaudited) - USD ($) $ in Millions	Jun. 30, 2017	Dec. 31, 2016
CURRENT ASSETS:
Cash and cash equivalents	$ 1,667	$ 1,377
Receivables, net of allowance	1,015	1,128
Inventories	416	476
Drilling advances	99	81
Assets held for sale	1,231	0
Prepaid assets and other	219	179
Total current assets	4,647	3,241
Oil and gas, on the basis of successful efforts accounting:
Proved properties	38,118	42,693
Unproved properties and properties under development	1,796	1,969
Gathering, transmission and processing facilities	1,254	976
Other	998	1,111
Property and equipment, gross	42,166	46,749
Less: Accumulated depreciation, depletion, and amortization	(24,615)	(27,882)
Property and equipment, net	17,551	18,867
OTHER ASSETS:
Deferred charges and other	404	411
Total assets	22,602	22,519
CURRENT LIABILITIES:
Accounts payable	533	585
Liabilities held for sale	939	0
Other current liabilities (Note 5)	1,401	1,258
Total current liabilities	2,873	1,843
LONG-TERM DEBT	8,329	8,544
DEFERRED CREDITS AND OTHER NONCURRENT LIABILITIES:
Income taxes	1,058	1,710
Asset retirement obligation	1,811	2,432
Other	266	311
Total deferred credits and other noncurrent liabilities	3,135	4,453
COMMITMENTS AND CONTINGENCIES (Note 9)
EQUITY:
Common stock, $0.625 par, 860,000,000 shares authorized, 414,099,033 and 412,612,102 shares issued, respectively	259	258
Paid-in capital	12,246	12,364
Accumulated deficit	(2,607)	(3,385)
Treasury stock, at cost, 33,171,015 and 33,172,426 shares, respectively	(2,887)	(2,887)
Accumulated other comprehensive loss	(112)	(112)
APACHE SHAREHOLDERS’ EQUITY	6,899	6,238
Noncontrolling interest	1,366	1,441
TOTAL EQUITY	8,265	7,679
TOTAL LIABILITIES AND EQUITY	$ 22,602	$ 22,519

CONSOLIDATED BALANCE SHEET (Un5

CONSOLIDATED BALANCE SHEET (Unaudited) (Parenthetical) - $ / shares	Jun. 30, 2017	Dec. 31, 2016
Statement of Financial Position [Abstract]
Common stock, par value (in USD per share)	$ 0.625	$ 0.625
Common stock, shares authorized	860,000,000	860,000,000
Common stock, shares issued	414,099,033	412,612,102
Treasury stock, shares	33,171,015	33,172,426

STATEMENT OF CONSOLIDATED CHANG

STATEMENT OF CONSOLIDATED CHANGES IN EQUITY (Unaudited) - USD ($) $ in Millions	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Loss [Member]	Apache Shareholders' Equity [Member]	Noncontrolling Interest [Member]
Beginning Balance at Dec. 31, 2015	$ 9,490	$ 257	$ 12,619	$ (1,980)	$ (2,889)	$ (119)	$ 7,888	$ 1,602
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(571)			(616)			(616)	45
Distributions to noncontrolling interest	(93)							(93)
Common dividends ($0.50 per share)	(189)		(189)				(189)
Other	59	1	57		1		59
Ending Balance at Jun. 30, 2016	8,696	258	12,487	(2,596)	(2,888)	(119)	7,142	1,554
Beginning Balance at Dec. 31, 2016	7,679	258	12,364	(3,385)	(2,887)	(112)	6,238	1,441
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	880			785			785	95
Distributions to noncontrolling interest	(170)							(170)
Common dividends ($0.50 per share)	(190)		(190)				(190)
Other	66	1	72	(7)			66
Ending Balance at Jun. 30, 2017	$ 8,265	$ 259	$ 12,246	$ (2,607)	$ (2,887)	$ (112)	$ 6,899	$ 1,366

STATEMENT OF CONSOLIDATED CHAN7

STATEMENT OF CONSOLIDATED CHANGES IN EQUITY (Unaudited) (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Statement of Stockholders' Equity [Abstract]
Common stock, dividends (USD per share)	$ 0.25	$ 0.25	$ 0.50	$ 0.5

Summary of Significant Accounti

Summary of Significant Accounting Policies	6 Months Ended
	Jun. 30, 2017
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	These consolidated financial statements have been prepared by Apache Corporation (Apache or the Company) without audit, pursuant to the rules and regulations of the Securities and Exchange Commission (SEC). They reflect all adjustments that are, in the opinion of management, necessary for a fair presentation of the results for the interim periods, on a basis consistent with the annual audited financial statements. All such adjustments are of a normal recurring nature. Certain information, accounting policies, and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States (U.S. GAAP) have been omitted pursuant to such rules and regulations, although the Company believes that the disclosures are adequate to make the information presented not misleading. This Quarterly Report on Form 10-Q should be read along with Apache’s Annual Report on Form 10-K for the fiscal year ended December 31, 2016 , which contains a summary of the Company’s significant accounting policies and other disclosures. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES As of June 30, 2017 , Apache’s significant accounting policies are consistent with those discussed in Note 1—Summary of Significant Accounting Policies of its consolidated financial statements contained in Apache’s Annual Report on Form 10-K for the fiscal year ended December 31, 2016 , with the exception of Accounting Standards Update (ASU) 2016-09, “Improvements to Employee Share-Based Payment Accounting” (see “Recently Adopted Accounting Pronouncement” section in this Note 1 below). Use of Estimates The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Significant estimates with regard to these financial statements include the fair value determination of acquired assets and liabilities, the estimate of proved oil and gas reserves and related present value estimates of future net cash flows therefrom, the assessment of asset retirement obligations, the estimates of fair value for long-lived assets and goodwill, and the estimate of income taxes. Actual results could differ from those estimates. Fair Value Measurements Certain assets and liabilities are reported at fair value on a recurring basis in Apache’s consolidated balance sheet. Accounting Standards Codification (ASC) 820-10-35, “Fair Value Measurement” (ASC 820), provides a hierarchy that prioritizes and defines the types of inputs used to measure fair value. The fair value hierarchy gives the highest priority to Level 1 inputs, which consist of unadjusted quoted prices for identical instruments in active markets. Level 2 inputs consist of quoted prices for similar instruments. Level 3 valuations are derived from inputs that are significant and unobservable; hence, these valuations have the lowest priority. The valuation techniques that may be used to measure fair value include a market approach, an income approach, and a cost approach. A market approach uses prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities. An income approach uses valuation techniques to convert future amounts to a single present amount based on current market expectations, including present value techniques, option-pricing models, and the excess earnings method. The cost approach is based on the amount that currently would be required to replace the service capacity of an asset (replacement cost). Apache also uses fair value measurements on a nonrecurring basis when certain qualitative assessments of its assets indicate a potential impairment. The Company recorded no asset impairments in connection with fair value assessments in the second quarter of 2017 . For the six -month period ended June 30, 2017 , the Company recorded asset impairments totaling $8 million in connection with fair value assessments. In 2016, the U.K. government enacted Finance Bill 2016, providing tax relief to exploration and production (E&P) companies operating in the U.K. North Sea. Under the enacted legislation, the U.K. PRT rate was reduced to zero from the previously enacted 35 percent rate in effect from January 1, 2016. PRT expense ceased prospectively from that date. During the first quarter of 2017, the Company fully impaired the aggregate remaining value of the recoverable PRT decommissioning asset of $8 million that would have been realized from future abandonment activities. The recoverable value of the PRT decommissioning asset was estimated using the income approach. The expected future cash flows used in the determination were based on anticipated spending and timing of planned future abandonment activities for applicable fields, considering all available information at the date of review. Apache has classified this fair value measurement as Level 3 in the fair value hierarchy. For the second quarter and six -month periods ended June 30, 2016 , the Company recorded asset impairments totaling $173 million in connection with fair value assessments. Impairments totaling $68 million were recorded for proved oil and gas properties in the U.S. and Canada, as discussed in further detail below in “Oil and Gas Property.” Also, for the second quarter and six -month periods ended June 30, 2016 , the Company recorded $105 million for the impairment of certain gas gathering, transmission, and processing (GTP) assets, which were written down to their fair values of $175 million . Oil and Gas Property The Company follows the successful efforts method of accounting for its oil and gas property. Under this method of accounting, exploration costs such as exploratory geological and geophysical costs, delay rentals, and exploration overhead are expensed as incurred. All costs related to production, general corporate overhead, and similar activities are expensed as incurred. If an exploratory well provides evidence to justify potential development of reserves, drilling costs associated with the well are initially capitalized, or suspended, pending a determination as to whether a commercially sufficient quantity of proved reserves can be attributed to the area as a result of drilling. This determination may take longer than one year in certain areas depending on, among other things, the amount of hydrocarbons discovered, the outcome of planned geological and engineering studies, the need for additional appraisal drilling activities to determine whether the discovery is sufficient to support an economic development plan, and government sanctioning of development activities in certain international locations. At the end of each quarter, management reviews the status of all suspended exploratory well costs in light of ongoing exploration activities; in particular, whether the Company is making sufficient progress in its ongoing exploration and appraisal efforts or, in the case of discoveries requiring government sanctioning, whether development negotiations are underway and proceeding as planned. If management determines that future appraisal drilling or development activities are unlikely to occur, associated suspended exploratory well costs are expensed. Acquisition costs of unproved properties are assessed for impairment at least annually and are transferred to proved oil and gas properties to the extent the costs are associated with successful exploration activities. Significant undeveloped leases are assessed individually for impairment based on the Company’s current exploration plans. Unproved oil and gas properties with individually insignificant lease acquisition costs are amortized on a group basis over the average lease term at rates that provide for full amortization of unsuccessful leases upon lease expiration or abandonment. Costs of expired or abandoned leases are charged to exploration expense, while costs of productive leases are transferred to proved oil and gas properties. Costs of maintaining and retaining unproved properties, as well as amortization of individually insignificant leases and impairment of unsuccessful leases, are included in exploration costs in the statement of consolidated operations. Costs to develop proved reserves, including the costs of all development wells and related equipment used in the production of crude oil and natural gas, are capitalized. Depreciation of the cost of proved oil and gas properties is calculated using the unit-of-production (UOP) method. The UOP calculation multiplies the percentage of estimated proved reserves produced each quarter by the carrying value of those reserves. The reserve base used to calculate depreciation for leasehold acquisition costs and the cost to acquire proved properties is the sum of proved developed reserves and proved undeveloped reserves. The reserve base to calculate the depreciation for capitalized costs of exploratory wells and development costs is the sum of proved developed reserves only. Estimated future dismantlement, restoration and abandonment costs, net of salvage values, are included in the depreciable cost. Oil and gas properties are grouped for depreciation in accordance with ASC 932, “Extractive Activities - Oil and Gas.” The basis for grouping is a reasonable aggregation of properties with a common geological structural feature or stratigraphic condition, such as a reservoir or field. When circumstances indicate that proved oil and gas properties may be impaired, the Company compares unamortized capitalized costs to the expected undiscounted pre-tax future cash flows for the associated assets grouped at the lowest level for which identifiable cash flows are independent of cash flows of other assets. If the expected undiscounted pre-tax future cash flows, based on Apache’s estimate of future crude oil and natural gas prices, operating costs, anticipated production from proved reserves and other relevant data, are lower than the unamortized capitalized cost, the capitalized cost is reduced to fair value. Fair value is generally estimated using the income approach described in the ASC 820. If applicable, the Company utilizes prices and other relevant information generated by market transactions involving assets and liabilities that are identical or comparable to the item being measured as the basis for determining fair value. The expected future cash flows used for impairment reviews and related fair value calculations are typically based on judgmental assessments of future production volumes, commodity prices, operating costs, and capital investment plans, considering all available information at the date of review. These assumptions are applied to develop future cash flow projections that are then discounted to estimated fair value, using a discount rate believed to be consistent with those applied by market participants. Apache has classified these fair value measurements as Level 3 in the fair value hierarchy. The following table represents non-cash impairments of the carrying value of the Company’s proved and unproved property and equipment for the second quarters and first six months of 2017 and 2016 : Quarter Ended June 30, Six Months Ended June 30, 2017 2016 2017 2016 (In millions) Oil and Gas Property: Proved $ — $ 68 $ — $ 68 Unproved 39 66 54 108 Proved properties impaired during the quarter ended June 30, 2016 had an aggregate fair value of $143 million . On the statement of consolidated operations, unproved impairments are recorded in exploration expense, and proved impairments are recorded in impairments. Recently Adopted Accounting Pronouncement In March 2016, the Financial Accounting Standards Board (FASB) issued ASU 2016-09, “Improvements to Employee Share-Based Payment Accounting.” ASU 2016-09 simplifies several aspects of accounting for share-based payment transactions including income tax consequences, classification of awards as either equity or liabilities, and the classification on the statement of cash flows. The guidance was effective for fiscal years beginning after December 15, 2016. The Company adopted ASU 2016-09 effective January 1, 2017. Upon adoption, the Company elected to account for forfeitures as they occur rather than estimate expected forfeitures using a modified retrospective transition method. As a result of this election, the Company recorded a cumulative-effect adjustment of $11 million , representing an increase in accumulated deficit, with the offset to paid-in capital. During the first quarter of 2017, the Company recorded a $4 million deferred tax asset related to this adjustment, with the offset to accumulated deficit. ASU 2016-09 requires excess tax benefits and deficiencies to be recognized prospectively as part of the provision for income taxes rather than paid-in capital. The adoption did not have a material impact on the Company’s accounting of provision for income taxes. ASU 2016-09 also requires excess tax benefits to be presented as a component of operating cash flows rather than financing cash flows. The Company has adopted this requirement prospectively and accordingly, prior periods have not been adjusted. Excess tax benefits were not material for all periods presented. Additionally, ASU 2016-09 requires that employee taxes paid when an employer withholds shares for tax-withholding purposes be reported as financing activities in the consolidated statements of cash flows, which is how the Company has historically classified these amounts. New Pronouncements Issued But Not Yet Adopted In February 2016, the FASB issued ASU 2016-02, “Leases (Topic 842),” requiring lessees to recognize lease assets and lease liabilities for most leases classified as operating leases under previous U.S. GAAP. The guidance is effective for fiscal years beginning after December 15, 2018, with early adoption permitted. The Company will be required to use a modified retrospective approach for leases that exist or are entered into after the beginning of the earliest comparative period in the financial statements. As part of the assessment to date, the Company has formed an implementation work team, is reviewing software solutions, and began the process of evaluating contracts to determine the impact this ASU will have on its consolidated financial statements. At this time, the Company cannot reasonably estimate the financial impact this will have on its consolidated financial statements; however, the Company believes adoption and implementation of this ASU will significantly impact its balance sheet, resulting in an increase in both assets and liabilities relating to its leasing activities. In May 2014, the FASB and the International Accounting Standards Board (IASB) issued a joint revenue recognition standard, ASU 2014-09, “Revenue from Contracts with Customers (Topic 606).” The new standard removes inconsistencies in existing standards, changes the way companies recognize revenue from contracts with customers, and increases disclosure requirements. The codification was amended through additional ASUs and, as amended, requires companies to recognize revenue to depict the transfer of goods or services to customers in amounts that reflect the consideration to which the company expects to be entitled in exchange for those goods or services. The guidance is effective for annual and interim periods beginning after December 15, 2017. The standard is required to be adopted using either the full retrospective approach, with all prior periods presented adjusted, or the modified retrospective approach, with a cumulative adjustment to retained earnings on the opening balance sheet. Upon preliminary evaluation of contracts in each of the Company’s revenue streams, the Company does not expect the adoption of this ASU to have a material impact on net earnings, however, the Company is analyzing whether the classification of certain items in revenue and expense will be impacted. The Company continues to evaluate the disclosure requirements, develop accounting policies, and assess changes to the relevant business processes and the control activities within them as a result of the provisions of this ASU. The Company will adopt the new standard on January 1, 2018, utilizing the modified retrospective approach.

Acquisitions and Divestitures

Acquisitions and Divestitures	6 Months Ended
	Jun. 30, 2017
Business Combinations [Abstract]
Acquisitions and Divestitures	ACQUISITIONS AND DIVESTITURES 2017 Activity Canada Divestitures In July 2017, Apache announced three separate transactions to sell its subsidiary Apache Canada Ltd. (ACL) and its Canadian operations for aggregate cash proceeds of approximately $713 million , subject to foreign exchange movements and customary closing adjustments. The sale of assets at Midale and House Mountain, located in Saskatchewan and Alberta, closed on June 30, 2017. The Company recognized a $52 million loss in association with this sale. The two remaining transactions to sell ACL and Provost assets in Alberta are expected to close in August 2017. As a result of the agreements to sell these assets, the remaining ACL assets and liabilities qualified as held for sale as of June 30, 2017. A summary of the associated assets and liabilities classified as held for sale on Apache’s consolidated balance sheet as of June 30, 2017, is detailed below: June 30, 2017 (In millions) ASSETS Current assets $ 105 Property, plant & equipment 1,126 Assets held for sale $ 1,231 LIABILITIES Current liabilities, excluding asset retirement obligation $ 112 Asset retirement obligation 779 Other long-term liabilities 48 Liabilities held for sale $ 939 In connection with classifying these assets as held for sale, a separate impairment analysis was performed for each of the assets within the disposal group. The analyses were based on the agreed-upon proceeds less costs to sell for the two transactions related to ACL and Provost assets, a Level 1 fair value measurement. The net carrying value of the assets held for sale in the impairment calculation included consideration of the currency translation loss of $109 million , which is recorded in “Accumulated Other Comprehensive Loss” on the Company’s consolidated balance sheet. The currency translation loss will be recognized as a component of the expected net gain on sale during the third quarter of 2017 upon closing of the transactions. The fair value of the net assets held for sale exceeded the underlying equity value of ACL and the carrying amount of Provost assets at the balance sheet date, and no impairment was recognized. ACL recorded pretax losses of $93 million and $129 million for the second quarter and first six months of 2017, respectively, compared to pretax losses of $62 million and $161 million , respectively, for the comparable periods in 2016. The Company expects to recognize a small gain upon closing of the transactions during the third quarter of 2017. U.S. Divestitures During the first half of 2017, Apache completed the sale of certain non-core assets, primarily in the Permian and Midcontinent/Gulf Coast regions, in multiple transactions for cash proceeds of $522 million , subject to customary closing adjustments. A refundable deposit of $40 million was received in the fourth quarter of 2016 in connection with certain of these transactions. The Company recognized gains of approximately $372 million during the first half of 2017 in connection with these transactions. North Sea GTP Divestiture During the fourth quarter of 2016, Apache entered into an agreement to sell its 30.28 percent interest in the Scottish Area Gas Evacuation system (SAGE) and its 60.56 percent interest in the Beryl pipeline in the North Sea to Ancala Midstream Acquisitions Limited (Ancala). The transaction is subject to regulatory and third-party approvals, which are ongoing in 2017. The Company received a refundable deposit in connection with this transaction, which is recorded in “Other current liabilities” on the consolidated balance sheet. The refundable deposit was $142 million as of June 30, 2017 . Leasehold and Property Acquisitions During the second quarter and first six months of 2017 , Apache completed $18 million and $67 million , respectively, of leasehold and property acquisitions primarily in its North America onshore regions. 2016 Activity Leasehold and Property Acquisitions During the second quarter and first six months of 2016 , Apache completed $99 million and $118 million , respectively, of leasehold and property acquisitions primarily in its North America onshore regions and Egypt.

Derivative Instruments and Hedg

Derivative Instruments and Hedging Activities	6 Months Ended
	Jun. 30, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments and Hedging Activities	DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES Objectives and Strategies The Company is exposed to fluctuations in crude oil and natural gas prices on the majority of its worldwide production. Apache manages the variability in its cash flows by occasionally entering into derivative transactions on a portion of its crude oil and natural gas production. The Company utilizes various types of derivative financial instruments to manage fluctuations in cash flows resulting from changes in commodity prices. Counterparty Risk The use of derivative instruments exposes the Company to credit loss in the event of nonperformance by the counterparty. To reduce the concentration of exposure to any individual counterparty, Apache utilizes a diversified group of investment-grade rated counterparties, primarily financial institutions, for its derivative transactions. As of June 30, 2017 , Apache had derivative positions with 12 counterparties. The Company monitors counterparty creditworthiness on an ongoing basis; however, it cannot predict sudden changes in counterparties’ creditworthiness. In addition, even if such changes are not sudden, the Company may be limited in its ability to mitigate an increase in counterparty credit risk. Should one of these counterparties not perform, Apache may not realize the benefit of some of its derivative instruments resulting from lower commodity prices. Derivative Instruments As of June 30, 2017 , Apache had the following open crude oil derivative positions: Put Options (1) Production Period Settlement Index Mbbls Weighted Average Strike Price July - December 2017 NYMEX WTI 16,928 $50.00 July - December 2017 Dated Brent 15,272 $51.00 (1) Apache paid a total premium of $100 million for these put option contracts, averaging $3.09 per barrel. As of June 30, 2017 , Apache had the following open natural gas derivative positions: Fixed-Price Swaps Production Period MMBtu (in 000’s) Weighted Average Fixed Price (1)(2) July - December 2017 4,370 $3.46 January - March 2018 2,700 $3.60 (1) U.S. natural gas prices represent a weighted-average of several contracts entered into on a per-million British thermal units (MMBtu) basis and are settled primarily against NYMEX Henry Hub. (2) Subsequent to June 30, 2017, Apache entered into fixed-price natural gas contracts settling against Nymex Henry Hub totaling 20,000 MMBtu/d at a weighted average price of $3.13 for the fourth quarter of 2017 and 120,000 MMBtu/d at a weighted average price of $3.33 for the first quarter of 2018. Apache elected not to designate any of these derivatives as cash flow hedges. Changes in the fair value of these derivatives are recorded in “Other” under “Revenues and Other” in the Company’s statement of consolidated operations. Total unrealized gain in the second quarter and first six months of 2017 was $41 million . Unrealized gains and losses for derivative activity recorded in the statement of consolidated operations is reflected in the statement of consolidated cash flows as a component of “Other” in “Adjustments to reconcile net income to net cash provided by operating activities.” Fair Value Measurements Apache’s commodity derivative instruments consist of put options and fixed-price swaps. The fair values of the Company’s derivatives are not actively quoted in the open market. The Company uses a market approach to estimate the fair values of its derivative instruments on a recurring basis, utilizing commodity futures pricing for the underlying commodities provided by a reputable third party, a Level 2 fair value measurement. The fair value of the Company’s derivative assets at June 30, 2017 , was $141 million and is reflected in “Prepaid assets and other” in the Company’s consolidated balance sheet.

Capitalized Exploratory Well Co

Capitalized Exploratory Well Costs	6 Months Ended
	Jun. 30, 2017
Extractive Industries [Abstract]
Capitalized Exploratory Well Costs	CAPITALIZED EXPLORATORY WELL COSTS The Company’s capitalized exploratory well costs were $274 million and $264 million at June 30, 2017 and December 31, 2016 , respectively. The increase is primarily attributable to additional drilling activities during the period, partially offset by successful transfers and dry hole write-offs. No suspended exploratory well costs previously capitalized for greater than one year at December 31, 2016 were charged to dry hole expense during the six months ended June 30, 2017 . Projects with suspended exploratory well costs capitalized for a period greater than one year since the completion of drilling are those identified by management as exhibiting sufficient quantities of hydrocarbons to justify potential development. Management is actively pursuing efforts to assess whether reserves can be attributed to these projects.

Other Current Liabilities

Other Current Liabilities	6 Months Ended
	Jun. 30, 2017
Payables and Accruals [Abstract]
Other Current Liabilities	OTHER CURRENT LIABILITIES The following table provides detail of the Company’s other current liabilities as of June 30, 2017 and December 31, 2016 : June 30, 2017 December 31, 2016 (In millions) Accrued operating expenses $ 76 $ 110 Accrued exploration and development 608 463 Accrued compensation and benefits 76 201 Accrued interest 146 145 Accrued income taxes 77 22 Current debt 150 — Current asset retirement obligation 35 66 Refundable deposits 142 174 Other 91 77 Total other current liabilities $ 1,401 $ 1,258

Asset Retirement Obligation

Asset Retirement Obligation	6 Months Ended
	Jun. 30, 2017
Asset Retirement Obligation Disclosure [Abstract]
Asset Retirement Obligation	ASSET RETIREMENT OBLIGATION The following table describes changes to the Company’s asset retirement obligation (ARO) liability for the six -month period ended June 30, 2017 : (In millions) Asset retirement obligation at December 31, 2016 $ 2,498 Liabilities incurred 38 Liabilities divested (29 ) Liabilities settled (21 ) Accretion expense 73 Revisions in estimated liabilities 66 Liabilities held for sale (779 ) Asset retirement obligation at June 30, 2017 1,846 Less current portion 35 Asset retirement obligation, long-term $ 1,811

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2017
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES The Company estimates its annual effective income tax rate for continuing operations in recording its quarterly provision for income taxes in the various jurisdictions in which the Company operates. Non-cash impairments of the carrying value of the Company’s oil and gas properties, gains and losses on the sale of assets, statutory tax rate changes, and other significant or unusual items are recognized as discrete items in the quarter in which they occur. In July 2017, Apache announced the sale of ACL and classified its investment in the subsidiary as held for sale as of June 30, 2017. For more information regarding this transaction, please refer to Note 2—Acquisitions and Divestitures. As a result of this transaction, Apache recorded a deferred tax asset associated with its investment in ACL and decreased its deferred tax liability associated with its investment in other foreign subsidiaries. This resulted in the Company recording a $674 million deferred income tax benefit in the second quarter of 2017. Also during the second quarter of 2017 , Apache’s effective income tax rate was primarily impacted by gains on the sale of oil and gas properties and an increase in the amount of valuation allowance on Canadian deferred tax assets. During the second quarter of 2016 , Apache’s effective income tax rate was primarily impacted by an increase in the valuation allowance on Canadian deferred tax assets. Apache’s 2017 year-to-date effective income tax rate is primarily impacted by the decrease in deferred taxes associated with its investments in foreign subsidiaries, gains on the sale of oil and gas properties, non-cash impairments of the Company’s PRT decommissioning asset, and an increase in the amount of valuation allowance on Canadian deferred tax assets. Apache’s 2016 year-to-date effective tax rate was primarily impacted by an increase in the valuation allowance on Canadian deferred tax assets. Apache and its subsidiaries are subject to U.S. federal income tax as well as income or capital taxes in various state and foreign jurisdictions. The Company’s tax reserves are related to tax years that may be subject to examination by the relevant taxing authority. In April 2017, the Internal Revenue Service (IRS) began their audit of the Company’s 2014 income tax year. The Company is also under audit in various states and in most of the Company’s foreign jurisdictions as part of its normal course of business.

Debt and Financing Costs

Debt and Financing Costs	6 Months Ended
	Jun. 30, 2017
Debt Disclosure [Abstract]
Debt and Financing Costs	DEBT AND FINANCING COSTS The following table presents the carrying amounts and estimated fair values of the Company’s outstanding debt as of June 30, 2017 and December 31, 2016 : June 30, 2017 December 31, 2016 Carrying Amount Fair Value Carrying Amount Fair Value (In millions) Commercial paper and committed bank facilities $ — $ — $ — $ — Notes and debentures 8,479 9,094 8,544 9,183 Total Debt $ 8,479 $ 9,094 $ 8,544 $ 9,183 The Company’s debt is recorded at the carrying amount, net of related unamortized discount and debt issuance costs, on its consolidated balance sheet. When recorded, the carrying amount of the Company’s commercial paper, committed bank facilities, and uncommitted bank lines approximates fair value because the interest rates are variable and reflective of market rates. Apache uses a market approach to determine the fair value of its notes and debentures using estimates provided by an independent investment financial data services firm (a Level 2 fair value measurement). The following table presents the carrying value of the Company’s debt as of June 30, 2017 and December 31, 2016 : June 30, 2017 December 31, 2016 (In millions) Debt before unamortized discount and debt issuance costs $ 8,580 $ 8,650 Unamortized discount (49 ) (50 ) Debt issuance costs (52 ) (56 ) Total debt 8,479 8,544 Current maturities (150 ) — Long-term debt $ 8,329 $ 8,544 As of June 30, 2017 , current debt included $150 million of 7.0% senior notes due February 1, 2018. As of June 30, 2017 , the Company had a revolving credit facility that matures in June 2020 , subject to Apache’s two , one -year extension options. The facility provides for aggregate commitments of $3.5 billion (including a $750 million letter of credit subfacility), with rights to increase commitments up to an aggregate $4.5 billion . Proceeds from borrowings may be used for general corporate purposes. Apache’s available borrowing capacity under this facility supports its $3.5 billion commercial paper program. The commercial paper program, which is subject to market availability, facilitates Apache borrowing funds for up to 270 days at competitive interest rates. As of June 30, 2017 , the Company had no commercial paper or borrowings under committed bank facilities or uncommitted bank lines outstanding. As of June 30, 2017 , the Company had a letter of credit facility, which provides for £900 million in commitments and rights to increase commitments to £1.075 billion . This facility matures in February 2020 . The facility is available for letters of credit and loans to cash collateralize letters of credit or obligations to provide letters of credit, in each case, to the extent letters of credit are unavailable under the facility. As of June 30, 2017 , three letters of credit aggregating approximately £147.5 million and no borrowings were outstanding under this facility. In November 2016, the Company initiated a program to purchase in the open market up to $250 million in aggregate principal amount of senior notes issued under its indentures. In the fourth quarter of 2016, the Company purchased and canceled $181 million aggregate principal amount of its senior notes through open market repurchases for $182 million in cash, including accrued interest and $0.5 million of premium. In January 2017, the Company purchased and canceled an additional $69 million aggregate principal amount of senior notes for $71 million in cash, including accrued interest and $1 million of premium, which completed the open market repurchase program. These repurchases resulted in a $1 million net loss on extinguishment of debt, which is included in “Financing costs, net” in the Company’s consolidated statement of operations. The net loss includes an acceleration of related discount and deferred financing costs. Financing Costs, Net The following table presents the components of Apache’s financing costs, net: For the Quarter Ended June 30, For the Six Months Ended June 30, 2017 2016 2017 2016 (In millions) Interest expense $ 115 $ 116 $ 231 $ 232 Amortization of deferred loan costs 2 2 4 3 Capitalized interest (13 ) (12 ) (27 ) (23 ) Loss on extinguishment of debt — — 1 — Interest income (5 ) (2 ) (10 ) (3 ) Financing costs, net $ 99 $ 104 $ 199 $ 209

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2017
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	COMMITMENTS AND CONTINGENCIES Legal Matters Apache is party to various legal actions arising in the ordinary course of business, including litigation and governmental and regulatory controls. As of June 30, 2017 , the Company has an accrued liability of approximately $26 million for all legal contingencies that are deemed to be probable of occurring and can be reasonably estimated. Apache’s estimates are based on information known about the matters and its experience in contesting, litigating, and settling similar matters. Although actual amounts could differ from management’s estimate, none of the actions are believed by management to involve future amounts that would be material to Apache’s financial position, results of operations, or liquidity after consideration of recorded accruals. For material matters that Apache believes an unfavorable outcome is reasonably possible, the Company has disclosed the nature of the matter and a range of potential exposure, unless an estimate cannot be made at this time. It is management’s opinion that the loss for any other litigation matters and claims that are reasonably possible to occur will not have a material adverse effect on the Company’s financial position, results of operations, or liquidity. For additional information on each of the Legal Matters described below, please see Note 10—Commitments and Contingencies to the consolidated financial statements contained in Apache’s Annual Report on Form 10-K for the fiscal year ended December 31, 2016 . Argentine Environmental Claims and Argentina Tariff No material change in the status of the YPF Sociedad Anónima and Pioneer Natural Resources Company indemnities matters has occurred since the filing of Apache’s Annual Report on Form 10-K for the fiscal year ended December 31, 2016 . Louisiana Restoration As more fully described in Apache’s Annual Report on Form 10-K for the fiscal year ended December 31, 2016 , numerous surface owners have filed claims or sent demand letters to various oil and gas companies, including Apache, claiming that, under either express or implied lease terms or Louisiana law, the companies are liable for damage measured by the cost of restoration of leased premises to their original condition as well as damages for contamination and cleanup. On July 24, 2013, a lawsuit captioned Board of Commissioners of the Southeast Louisiana Flood Protection Authority – East v. Tennessee Gas Pipeline Company et al. , Case No. 2013-6911 was filed in the Civil District Court for the Parish of Orleans, State of Louisiana, in which plaintiff on behalf of itself and as the board governing the levee districts of Orleans, Lake Borgne Basin, and East Jefferson alleged that Louisiana coastal lands have been damaged as a result of oil and gas industry activity, including a network of canals for access and pipelines. The defendants removed the case from state court to federal court and, on February 13, 2015, the federal court entered judgment in favor of defendants dismissing all of plaintiff’s claims with prejudice. Plaintiff appealed the lower court’s dismissal to the 5 th Circuit Court of Appeals and additionally challenged the defendants’ right to remove the case to federal court. On March 3, 2017, the 5 th Circuit Court of Appeals affirmed the propriety of federal jurisdiction based in part on Apache’s argument that plaintiff’s state-based claims required a resolution of substantial questions of federal law and also affirmed the dismissal of the action. The Plaintiff has now filed a Petition for a Writ of Certiorari with the United States Supreme Court. Starting in November of 2013 and continuing into 2017, several Parishes in Louisiana have pending lawsuits against many oil and gas producers, including Apache. These cases are pending in federal and state courts in Louisiana. In these cases, the Parishes, as plaintiffs, allege that defendants’ oil and gas exploration, production, and transportation operations in specified fields were conducted in violation of the State and Local Coastal Resources Management Act of 1978, as amended, and applicable regulations, rules, orders, and ordinances promulgated or adopted thereunder by the Parish or the State of Louisiana. Plaintiffs allege that defendants caused substantial damage to land and water bodies located in the coastal zone of Louisiana. Plaintiffs seek, among other things, unspecified damages for alleged violations of applicable state law within the coastal zone, the payment of costs necessary to clear, re-vegetate, detoxify, and otherwise restore the subject coastal zone as near as practicable to its original condition, and actual restoration of the coastal zone to its original condition. While an adverse judgment against Apache might be possible, Apache intends to vigorously oppose these claims. No other material change in the status of these matters has occurred since the filing of Apache’s Annual Report on Form 10-K for the fiscal year ended December 31, 2016 . Apollo Exploration Lawsuit In a fourth amended petition filed on March 21, 2016, in a case captioned Apollo Exploration, LLC, Cogent Exploration, Ltd. Co. & SellmoCo, LLC v. Apache Corporation , Cause No. CV50538 in the 385 th Judicial District Court, Midland County, Texas, plaintiffs have reduced their alleged damages to approximately $500 million (having previously claimed in excess of $1.1 billion ) relating to certain purchase and sale agreements, mineral leases, and areas of mutual interest agreements concerning properties located in Hartley, Moore, Potter, and Oldham Counties, Texas. Apache believes that plaintiffs’ claims lack merit, and further that plaintiffs’ alleged damages, even as amended, are grossly inflated. Apache will vigorously oppose the claims. No other material change in the status of these matters has occurred since the filing of Apache’s Annual Report on Form 10-K for the fiscal year ended December 31, 2016 . Escheat Audits There has been no material change with respect to the review of the books and records of the Company and its subsidiaries and related entities by the State of Delaware, Department of Finance (Unclaimed Property), to determine compliance with the Delaware Escheat Laws, since the filing of Apache’s Annual Report on Form 10-K for the fiscal year ended December 31, 2016 . Environmental Matters As of June 30, 2017 , the Company had an undiscounted reserve for environmental remediation of approximately $45 million , of which $41 million relates to Canadian operations classified as held for sale. The Company is not aware of any environmental claims existing as of June 30, 2017 , that have not been provided for or would otherwise have a material impact on its financial position, results of operations, or liquidity. There can be no assurance, however, that current regulatory requirements will not change or past non-compliance with environmental laws will not be discovered on the Company’s properties. ACL reported a produced water release from a water injection pipeline in a remote area of the Belloy Field that occurred on or about May 4, 2016 and a hydrogen sulfide and oil emulsion leak in the Zama area on or about September 17, 2016. The affected areas have been or are currently being remediated. The Company does not expect the economic impact of any of these incidents to have a material effect on the Company’s financial position, results of operations, or liquidity. No other material change in the status of these matters has occurred since the filing of Apache’s Annual Report on Form 10-K for the fiscal year ended December 31, 2016 . In addition to the matters for which we have already accrued, on July 17, 2017, in three separate actions, San Mateo County, California, Marin County, California, and the City of Imperial Beach, California, all filed suit individually and on behalf of the people of the state of California against over 30 oil, gas, and coal companies alleging damages as a result of global warming. Plaintiffs seek unspecified damages and abatement under various tort theories. Apache believes that the claims made against it are baseless and intends to vigorously defend these lawsuits. Australian Operations Divestiture Dispute By a Sale and Purchase Agreement dated April 9, 2015 (SPA), the Company and its subsidiaries divested their remaining Australian operations to Viraciti Energy Pty Ltd, which has since been renamed Quadrant Energy Pty Ltd (Quadrant). Closing occurred on June 5, 2015. By letter dated June 6, 2016, Quadrant provided the Company with a one -year placeholder notice of claim under the SPA concerning tax and other issues totaling approximately $200 million in the aggregate. The Company is in the process of reviewing the issues raised by Quadrant and believes at this time that these matters will not have a material adverse effect on the Company’s financial position, results of operation, or liquidity.

Capital Stock

Capital Stock	6 Months Ended
	Jun. 30, 2017
Equity [Abstract]
Capital Stock	CAPITAL STOCK Net Income (Loss) per Common Share A reconciliation of the components of basic and diluted net income (loss) per common share for the quarters ended June 30, 2017 and 2016 , is presented in the table below. For the Quarter Ended June 30, 2017 2016 Income Shares Per Share Loss Shares Per Share (In millions, except per share amounts) Basic: Income (loss) attributable to common stock $ 572 381 $ 1.50 $ (244 ) 379 $ (0.65 ) Effect of Dilutive Securities: Stock options and other $ — 2 $ — $ — — $ — Diluted: Income (loss) attributable to common stock $ 572 383 $ 1.50 $ (244 ) 379 $ (0.65 ) For the Six Months Ended June 30, 2017 2016 Income Shares Per Share Loss Shares Per Share (In millions, except per share amounts) Basic: Income (loss) attributable to common stock $ 785 380 $ 2.06 $ (616 ) 379 $ (1.63 ) Effect of Dilutive Securities: Stock options and other $ — 3 $ (0.01 ) $ — — $ — Diluted: Income (loss) attributable to common stock $ 785 383 $ 2.05 $ (616 ) 379 $ (1.63 ) The diluted earnings per share calculation excludes options and restricted stock units that were anti-dilutive totaling 8.5 million and 6.3 million for the quarters ended June 30, 2017 and 2016 , respectively, and 8.6 million and 7.4 million for the six months ended June 30, 2017 and 2016 , respectively. Common Stock Dividends For each of the quarters ended June 30, 2017 , and 2016 , Apache paid $95 million in dividends on its common stock. For the six months ended June 30, 2017 and 2016 , the Company paid $190 million and $189 million , respectively. Stock Repurchase Program Apache’s Board of Directors has authorized the purchase of up to 40 million shares of the Company’s common stock. Shares may be purchased either in the open market or through privately negotiated transactions. The Company initiated the buyback program on June 10, 2013, and through June 30, 2017 , had repurchased a total of 32.2 million shares at an average price of $88.96 per share. The Company is not obligated to acquire any specific number of shares and has not purchased any shares during 2017 .

Business Segment Information

Business Segment Information	6 Months Ended
	Jun. 30, 2017
Segment Reporting [Abstract]
Business Segment Information	BUSINESS SEGMENT INFORMATION Apache is engaged in a single line of business. Both domestically and internationally, the Company explores for, develops, and produces natural gas, crude oil, and natural gas liquids. At June 30, 2017 , the Company had production in four reporting segments: the United States, Canada, Egypt, and offshore the United Kingdom in the North Sea (North Sea). Apache also has exploration interests in Suriname that may, over time, result in a reportable discovery and development opportunity. Financial information for each area is presented below: United States Canada Egypt (1) North Sea Other International Total (In millions) For the Quarter Ended June 30, 2017 Oil and Gas Production Revenues $ 491 $ 93 $ 521 $ 241 $ — $ 1,346 Operating Income (Loss) (2) $ (17 ) $ (18 ) $ 213 $ 4 $ (2 ) $ 180 Other Income (Expense): Loss on divestitures, net (21 ) Other 59 General and administrative (106 ) Transaction, reorganization, and separation (4 ) Financing costs, net (99 ) Income Before Income Taxes $ 9 For the Six Months Ended June 30, 2017 Oil and Gas Production Revenues $ 1,043 $ 195 $ 1,112 $ 508 $ — $ 2,858 Operating Income (Loss) (2) $ 43 $ (31 ) $ 514 $ 42 $ (23 ) $ 545 Other Income (Expense): Gain on divestitures, net 320 Other 84 General and administrative (209 ) Transaction, reorganization, and separation 6 Financing costs, net (199 ) Income Before Income Taxes $ 547 Total Assets $ 12,530 $ 1,476 $ 4,778 $ 3,772 $ 46 $ 22,602 United States Canada Egypt (1) North Sea Other International Total (In millions) For the Quarter Ended June 30, 2016 Oil and Gas Production Revenues $ 520 $ 73 $ 542 $ 251 $ — $ 1,386 Operating Income (Loss) (3) $ (109 ) $ (57 ) $ 220 $ (115 ) $ — $ (61 ) Other Income (Expense): Gain on divestitures, net 17 Other (21 ) General and administrative (103 ) Transaction, reorganization, and separation (9 ) Financing costs, net (104 ) Loss Before Income Taxes $ (281 ) For the Six Months Ended June 30, 2016 Oil and Gas Production Revenues $ 929 $ 156 $ 934 $ 454 $ — $ 2,473 Operating Income (Loss) (3) $ (267 ) $ (118 ) $ 261 $ (101 ) $ (1 ) $ (226 ) Other Income (Expense): Gain on divestitures, net 16 Other (24 ) General and administrative (196 ) Transaction, reorganization, and separation (24 ) Financing costs, net (209 ) Loss Before Income Taxes $ (663 ) Total Assets $ 12,383 $ 2,070 $ 5,520 $ 4,326 $ 47 $ 24,346 (1) Includes a noncontrolling interest in Egypt. (2) Operating income (loss) consists of oil and gas production revenues less lease operating expenses, gathering and transportation costs, taxes other than income, exploration costs, depreciation, depletion, and amortization, asset retirement obligation accretion, and impairments. The operating income (loss) of U.S. and Canada includes leasehold impairments totaling $38 million and $1 million , respectively, for the second quarter of 2017 . The operating income (loss) of U.S., Canada, and North Sea includes leasehold and other asset impairments totaling $52 million , $2 million , and $8 million , respectively, for the first six months of 2017 . (3) The operating income (loss) of U.S., Canada, and North Sea includes leasehold, property, and other asset impairments totaling $125 million , $9 million , and $105 million , respectively, for the second quarter of 2016 . The operating income (loss) of U.S., Canada, and North Sea includes leasehold, property, and other asset impairments totaling $166 million , $10 million , and $105 million , respectively, for the first six months of 2016 .

Supplemental Guarantor Informat

Supplemental Guarantor Information	6 Months Ended
	Jun. 30, 2017
Guarantees [Abstract]
Supplemental Guarantor Information	SUPPLEMENTAL GUARANTOR INFORMATION In December 1999, Apache Finance Canada issued approximately $300 million of publicly-traded notes due in 2029 . The notes are fully and unconditionally guaranteed by Apache. The following condensed consolidating financial statements are provided as an alternative to filing separate financial statements. Apache Finance Canada is 100 percent owned by Apache Corporation. As such, these condensed consolidating financial statements should be read in conjunction with Apache’s consolidated financial statements and the notes thereto, of which this note is an integral part. APACHE CORPORATION AND SUBSIDIARIES CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS For the Quarter Ended June 30, 2017 Apache Corporation Apache Finance Canada All Other Subsidiaries of Apache Corporation Reclassifications & Eliminations Consolidated (In millions) REVENUES AND OTHER: Oil and gas production revenues $ 248 $ — $ 1,098 $ — $ 1,346 Equity in net income (loss) of affiliates (34 ) (26 ) — 60 — Other 62 8 (11 ) — 59 Gain (loss) on divestiture 34 — (55 ) — (21 ) 310 (18 ) 1,032 60 1,384 OPERATING EXPENSES: Lease operating expenses 79 — 293 — 372 Gathering and transportation 7 — 41 — 48 Taxes other than income 24 — 5 — 29 Exploration 54 — 54 — 108 General and administrative 91 — 15 — 106 Transaction, reorganization, and separation 4 — — — 4 Depreciation, depletion, and amortization 130 — 442 — 572 Asset retirement obligation accretion 5 — 32 — 37 Financing costs, net 60 6 33 — 99 454 6 915 — 1,375 NET INCOME (LOSS) BEFORE INCOME TAXES (144 ) (24 ) 117 60 9 Provision (benefit) for income taxes (716 ) 2 110 — (604 ) NET INCOME (LOSS) INCLUDING NONCONTROLLING INTEREST 572 (26 ) 7 60 613 Net income attributable to noncontrolling interest — — 41 — 41 NET INCOME (LOSS) ATTRIBUTABLE TO COMMON STOCK $ 572 $ (26 ) $ (34 ) $ 60 $ 572 APACHE CORPORATION AND SUBSIDIARIES CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS For the Quarter Ended June 30, 2016 Apache Corporation Apache Finance Canada All Other Subsidiaries of Apache Corporation Reclassifications & Eliminations Consolidated (In millions) REVENUES AND OTHER: Oil and gas production revenues $ 270 $ — $ 1,116 $ — $ 1,386 Equity in net income (loss) of affiliates (76 ) 6 — 70 — Other (22 ) 9 (8 ) — (21 ) Gain (loss) on divestiture (1 ) — 18 — 17 171 15 1,126 70 1,382 OPERATING EXPENSES: Lease operating expenses 66 — 293 — 359 Gathering and transportation 10 — 42 — 52 Taxes other than income 22 — 43 — 65 Exploration 76 — 15 — 91 General and administrative 86 — 17 — 103 Transaction, reorganization, and separation 9 — — — 9 Depreciation, depletion, and amortization 159 — 510 — 669 Asset retirement obligation accretion 5 — 33 — 38 Impairments 61 — 112 — 173 Financing costs, net 64 7 33 — 104 558 7 1,098 — 1,663 NET INCOME (LOSS) BEFORE INCOME TAXES (387 ) 8 28 70 (281 ) Provision (benefit) for income taxes (143 ) 2 60 — (81 ) NET INCOME (LOSS) INCLUDING NONCONTROLLING INTEREST (244 ) 6 (32 ) 70 (200 ) Net income attributable to noncontrolling interest — — 44 — 44 NET INCOME (LOSS) ATTRIBUTABLE TO COMMON STOCK $ (244 ) $ 6 $ (76 ) $ 70 $ (244 ) APACHE CORPORATION AND SUBSIDIARIES CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS For the Six Months Ended June 30, 2017 Apache Corporation Apache Finance Canada All Other Subsidiaries of Apache Corporation Reclassifications & Eliminations Consolidated (In millions) REVENUES AND OTHER: Oil and gas production revenues $ 532 $ — $ 2,326 $ — $ 2,858 Equity in net income (loss) of affiliates 188 (27 ) — (161 ) — Other 70 16 (2 ) — 84 Gain on divestitures 175 — 145 — 320 965 (11 ) 2,469 (161 ) 3,262 OPERATING EXPENSES: Lease operating expenses 160 — 548 — 708 Gathering and transportation 14 — 91 — 105 Taxes other than income 47 — 24 — 71 Exploration 82 — 118 — 200 General and administrative 181 — 28 — 209 Transaction, reorganization, and separation (6 ) — — — (6 ) Depreciation, depletion, and amortization 265 — 883 — 1,148 Asset retirement obligation accretion 11 — 62 — 73 Impairments — — 8 — 8 Financing costs, net 120 12 67 — 199 874 12 1,829 — 2,715 NET INCOME (LOSS) BEFORE INCOME TAXES 91 (23 ) 640 (161 ) 547 Provision (benefit) for income taxes (694 ) 4 357 — (333 ) NET INCOME (LOSS) INCLUDING NONCONTROLLING INTEREST 785 (27 ) 283 (161 ) 880 Net income attributable to noncontrolling interest — — 95 — 95 NET INCOME (LOSS) ATTRIBUTABLE TO COMMON STOCK $ 785 $ (27 ) $ 188 $ (161 ) $ 785 APACHE CORPORATION AND SUBSIDIARIES CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS For the Six Months Ended June 30, 2016 Apache Corporation Apache Finance Canada All Other Subsidiaries of Apache Corporation Reclassifications & Eliminations Consolidated (In millions) REVENUES AND OTHER: Oil and gas production revenues $ 487 $ — $ 1,986 $ — $ 2,473 Equity in net income (loss) of affiliates (184 ) (20 ) — 204 — Other 6 21 (51 ) — (24 ) Gain (loss) on divestitures (2 ) — 18 — 16 307 1 1,953 204 2,465 OPERATING EXPENSES: Lease operating expenses 144 — 593 — 737 Gathering and transportation 19 — 85 — 104 Taxes other than income 43 — 33 — 76 Exploration 126 — 60 — 186 General and administrative 163 — 33 — 196 Transaction, reorganization, and separation 24 — — — 24 Depreciation, depletion, and amortization 315 — 1,032 — 1,347 Asset retirement obligation accretion 9 — 67 — 76 Impairments 61 — 112 — 173 Financing costs, net 125 17 67 — 209 1,029 17 2,082 — 3,128 NET INCOME (LOSS) BEFORE INCOME TAXES (722 ) (16 ) (129 ) 204 (663 ) Provision (benefit) for income taxes (106 ) 4 10 — (92 ) NET INCOME (LOSS) INCLUDING NONCONTROLLING INTEREST (616 ) (20 ) (139 ) 204 (571 ) Net income attributable to noncontrolling interest — — 45 — 45 NET INCOME (LOSS) ATTRIBUTABLE TO COMMON STOCK $ (616 ) $ (20 ) $ (184 ) $ 204 $ (616 ) APACHE CORPORATION AND SUBSIDIARIES CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS For the Six Months Ended June 30, 2017 Apache Corporation Apache Finance Canada All Other Subsidiaries of Apache Corporation Reclassifications & Eliminations Consolidated (In millions) CASH PROVIDED BY (USED IN) OPERATING ACTIVITIES $ (280 ) $ (13 ) $ 1,499 $ — $ 1,206 CASH FLOWS FROM INVESTING ACTIVITIES: Additions to oil and gas property (235 ) — (648 ) — (883 ) Leasehold and property acquisitions (58 ) — (9 ) — (67 ) Additions to gas gathering, transmission, and processing facilities — — (274 ) — (274 ) Proceeds from sale of Midale and House Mountain — — 228 — 228 Proceeds from sale of oil and gas properties — — 483 — 483 Investment in subsidiaries, net 668 — — (668 ) — Other (9 ) — (7 ) — (16 ) NET CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES 366 — (227 ) (668 ) (529 ) CASH FLOWS FROM FINANCING ACTIVITIES: Intercompany borrowings — 259 (927 ) 668 — Payment of fixed-rate debt (70 ) — — — (70 ) Distributions to noncontrolling interest — — (170 ) — (170 ) Common stock activity, net — — — — — Dividends paid (190 ) — — — (190 ) Other — — 43 — 43 NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES (260 ) 259 (1,054 ) 668 (387 ) NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS (174 ) 246 218 — 290 CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR 344 — 1,033 — 1,377 CASH AND CASH EQUIVALENTS AT END OF PERIOD $ 170 $ 246 $ 1,251 $ — $ 1,667 APACHE CORPORATION AND SUBSIDIARIES CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS For the Six Months Ended June 30, 2016 Apache Corporation Apache Finance Canada All Other Subsidiaries of Apache Corporation Reclassifications & Eliminations Consolidated (In millions) CASH PROVIDED BY OPERATING ACTIVITIES $ 110 $ — $ 873 $ — $ 983 CASH FLOWS FROM INVESTING ACTIVITIES: Additions to oil and gas property (53 ) — (872 ) — (925 ) Leasehold and property acquisitions (53 ) — (65 ) — (118 ) Investment in subsidiaries, net (39 ) — — 39 — Other (3 ) — 80 — 77 NET CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES (148 ) — (857 ) 39 (966 ) CASH FLOWS FROM FINANCING ACTIVITIES: Intercompany borrowings — 1 38 (39 ) — Distributions to noncontrolling interest — — (93 ) — (93 ) Dividends paid (189 ) — — — (189 ) Other 1 (1 ) (1 ) — (1 ) NET CASH USED IN FINANCING ACTIVITIES (188 ) — (56 ) (39 ) (283 ) NET DECREASE IN CASH AND CASH EQUIVALENTS (226 ) — (40 ) — (266 ) CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR 378 — 1,089 — 1,467 CASH AND CASH EQUIVALENTS AT END OF PERIOD $ 152 $ — $ 1,049 $ — $ 1,201 APACHE CORPORATION AND SUBSIDIARIES CONDENSED CONSOLIDATING BALANCE SHEET June 30, 2017 Apache Corporation Apache Finance Canada All Other Subsidiaries of Apache Corporation Reclassifications & Eliminations Consolidated (In millions) ASSETS CURRENT ASSETS: Cash and cash equivalents $ 170 $ 246 $ 1,251 $ — $ 1,667 Receivables, net of allowance 300 — 715 — 1,015 Inventories 24 — 392 — 416 Drilling advances 5 — 94 — 99 Assets held for sale — — 1,231 — 1,231 Prepaid assets and other 178 — 41 — 219 Intercompany receivable 5,453 — — (5,453 ) — 6,130 246 3,724 (5,453 ) 4,647 PROPERTY AND EQUIPMENT, NET 7,232 — 10,319 — 17,551 OTHER ASSETS: Intercompany receivable — — 12,876 (12,876 ) — Equity in affiliates 15,705 (1,252 ) 691 (15,144 ) — Deferred charges and other 105 1,000 299 (1,000 ) 404 $ 29,172 $ (6 ) $ 27,909 $ (34,473 ) $ 22,602 LIABILITIES AND SHAREHOLDERS’ EQUITY CURRENT LIABILITIES: Accounts payable $ 371 $ — $ 162 $ — $ 533 Liabilities held for sale — — 939 — 939 Other current liabilities 699 4 698 — 1,401 Intercompany payable — 247 5,206 (5,453 ) — 1,070 251 7,005 (5,453 ) 2,873 LONG-TERM DEBT 8,032 297 — — 8,329 DEFERRED CREDITS AND OTHER NONCURRENT LIABILITIES: Intercompany payable 12,876 — — (12,876 ) — Income taxes (968 ) 5 2,021 — 1,058 Asset retirement obligation 355 — 1,456 — 1,811 Other 908 2 356 (1,000 ) 266 13,171 7 3,833 (13,876 ) 3,135 COMMITMENTS AND CONTINGENCIES APACHE SHAREHOLDERS’ EQUITY 6,899 (561 ) 15,705 (15,144 ) 6,899 Noncontrolling interest — — 1,366 — 1,366 TOTAL EQUITY 6,899 (561 ) 17,071 (15,144 ) 8,265 $ 29,172 $ (6 ) $ 27,909 $ (34,473 ) $ 22,602 APACHE CORPORATION AND SUBSIDIARIES CONDENSED CONSOLIDATING BALANCE SHEET December 31, 2016 Apache Corporation Apache Finance Canada All Other Subsidiaries of Apache Corporation Reclassifications & Eliminations Consolidated (In millions) ASSETS CURRENT ASSETS: Cash and cash equivalents $ 344 $ — $ 1,033 $ — $ 1,377 Receivables, net of allowance 358 — 770 — 1,128 Inventories 29 — 447 — 476 Drilling advances 4 — 77 — 81 Prepaid assets and other 134 — 45 — 179 Intercompany receivable 5,038 — — (5,038 ) — 5,907 — 2,372 (5,038 ) 3,241 PROPERTY AND EQUIPMENT, NET 7,014 — 11,853 — 18,867 OTHER ASSETS: Intercompany receivable — — 12,152 (12,152 ) — Equity in affiliates 15,517 (1,240 ) 706 (14,983 ) — Deferred charges and other 97 1,000 314 (1,000 ) 411 $ 28,535 $ (240 ) $ 27,397 $ (33,173 ) $ 22,519 LIABILITIES AND SHAREHOLDERS’ EQUITY CURRENT LIABILITIES: Accounts payable $ 371 $ (12 ) $ 226 $ — $ 585 Other current liabilities 653 3 602 — 1,258 Intercompany payable — — 5,038 (5,038 ) — 1,024 (9 ) 5,866 (5,038 ) 1,843 LONG-TERM DEBT 8,247 297 — — 8,544 DEFERRED CREDITS AND OTHER NONCURRENT LIABILITIES: Intercompany payable 12,152 — — (12,152 ) — Income taxes (271 ) 5 1,976 — 1,710 Asset retirement obligation 257 — 2,175 — 2,432 Other 888 1 422 (1,000 ) 311 13,026 6 4,573 (13,152 ) 4,453 COMMITMENTS AND CONTINGENCIES APACHE SHAREHOLDERS’ EQUITY 6,238 (534 ) 15,517 (14,983 ) 6,238 Noncontrolling interest — — 1,441 — 1,441 TOTAL EQUITY 6,238 (534 ) 16,958 (14,983 ) 7,679 $ 28,535 $ (240 ) $ 27,397 $ (33,173 ) $ 22,519

Summary of Significant Accoun20

Summary of Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2017
Accounting Policies [Abstract]
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Significant estimates with regard to these financial statements include the fair value determination of acquired assets and liabilities, the estimate of proved oil and gas reserves and related present value estimates of future net cash flows therefrom, the assessment of asset retirement obligations, the estimates of fair value for long-lived assets and goodwill, and the estimate of income taxes. Actual results could differ from those estimates.
Fair Value Measurements	Fair Value Measurements Certain assets and liabilities are reported at fair value on a recurring basis in Apache’s consolidated balance sheet. Accounting Standards Codification (ASC) 820-10-35, “Fair Value Measurement” (ASC 820), provides a hierarchy that prioritizes and defines the types of inputs used to measure fair value. The fair value hierarchy gives the highest priority to Level 1 inputs, which consist of unadjusted quoted prices for identical instruments in active markets. Level 2 inputs consist of quoted prices for similar instruments. Level 3 valuations are derived from inputs that are significant and unobservable; hence, these valuations have the lowest priority. The valuation techniques that may be used to measure fair value include a market approach, an income approach, and a cost approach. A market approach uses prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities. An income approach uses valuation techniques to convert future amounts to a single present amount based on current market expectations, including present value techniques, option-pricing models, and the excess earnings method. The cost approach is based on the amount that currently would be required to replace the service capacity of an asset (replacement cost). Apache also uses fair value measurements on a nonrecurring basis when certain qualitative assessments of its assets indicate a potential impairment. The Company recorded no asset impairments in connection with fair value assessments in the second quarter of 2017 . For the six -month period ended June 30, 2017 , the Company recorded asset impairments totaling $8 million in connection with fair value assessments. In 2016, the U.K. government enacted Finance Bill 2016, providing tax relief to exploration and production (E&P) companies operating in the U.K. North Sea. Under the enacted legislation, the U.K. PRT rate was reduced to zero from the previously enacted 35 percent rate in effect from January 1, 2016. PRT expense ceased prospectively from that date. During the first quarter of 2017, the Company fully impaired the aggregate remaining value of the recoverable PRT decommissioning asset of $8 million that would have been realized from future abandonment activities. The recoverable value of the PRT decommissioning asset was estimated using the income approach. The expected future cash flows used in the determination were based on anticipated spending and timing of planned future abandonment activities for applicable fields, considering all available information at the date of review. Apache has classified this fair value measurement as Level 3 in the fair value hierarchy.
Oil and Gas Property	Oil and Gas Property The Company follows the successful efforts method of accounting for its oil and gas property. Under this method of accounting, exploration costs such as exploratory geological and geophysical costs, delay rentals, and exploration overhead are expensed as incurred. All costs related to production, general corporate overhead, and similar activities are expensed as incurred. If an exploratory well provides evidence to justify potential development of reserves, drilling costs associated with the well are initially capitalized, or suspended, pending a determination as to whether a commercially sufficient quantity of proved reserves can be attributed to the area as a result of drilling. This determination may take longer than one year in certain areas depending on, among other things, the amount of hydrocarbons discovered, the outcome of planned geological and engineering studies, the need for additional appraisal drilling activities to determine whether the discovery is sufficient to support an economic development plan, and government sanctioning of development activities in certain international locations. At the end of each quarter, management reviews the status of all suspended exploratory well costs in light of ongoing exploration activities; in particular, whether the Company is making sufficient progress in its ongoing exploration and appraisal efforts or, in the case of discoveries requiring government sanctioning, whether development negotiations are underway and proceeding as planned. If management determines that future appraisal drilling or development activities are unlikely to occur, associated suspended exploratory well costs are expensed. Acquisition costs of unproved properties are assessed for impairment at least annually and are transferred to proved oil and gas properties to the extent the costs are associated with successful exploration activities. Significant undeveloped leases are assessed individually for impairment based on the Company’s current exploration plans. Unproved oil and gas properties with individually insignificant lease acquisition costs are amortized on a group basis over the average lease term at rates that provide for full amortization of unsuccessful leases upon lease expiration or abandonment. Costs of expired or abandoned leases are charged to exploration expense, while costs of productive leases are transferred to proved oil and gas properties. Costs of maintaining and retaining unproved properties, as well as amortization of individually insignificant leases and impairment of unsuccessful leases, are included in exploration costs in the statement of consolidated operations. Costs to develop proved reserves, including the costs of all development wells and related equipment used in the production of crude oil and natural gas, are capitalized. Depreciation of the cost of proved oil and gas properties is calculated using the unit-of-production (UOP) method. The UOP calculation multiplies the percentage of estimated proved reserves produced each quarter by the carrying value of those reserves. The reserve base used to calculate depreciation for leasehold acquisition costs and the cost to acquire proved properties is the sum of proved developed reserves and proved undeveloped reserves. The reserve base to calculate the depreciation for capitalized costs of exploratory wells and development costs is the sum of proved developed reserves only. Estimated future dismantlement, restoration and abandonment costs, net of salvage values, are included in the depreciable cost. Oil and gas properties are grouped for depreciation in accordance with ASC 932, “Extractive Activities - Oil and Gas.” The basis for grouping is a reasonable aggregation of properties with a common geological structural feature or stratigraphic condition, such as a reservoir or field. When circumstances indicate that proved oil and gas properties may be impaired, the Company compares unamortized capitalized costs to the expected undiscounted pre-tax future cash flows for the associated assets grouped at the lowest level for which identifiable cash flows are independent of cash flows of other assets. If the expected undiscounted pre-tax future cash flows, based on Apache’s estimate of future crude oil and natural gas prices, operating costs, anticipated production from proved reserves and other relevant data, are lower than the unamortized capitalized cost, the capitalized cost is reduced to fair value. Fair value is generally estimated using the income approach described in the ASC 820. If applicable, the Company utilizes prices and other relevant information generated by market transactions involving assets and liabilities that are identical or comparable to the item being measured as the basis for determining fair value. The expected future cash flows used for impairment reviews and related fair value calculations are typically based on judgmental assessments of future production volumes, commodity prices, operating costs, and capital investment plans, considering all available information at the date of review. These assumptions are applied to develop future cash flow projections that are then discounted to estimated fair value, using a discount rate believed to be consistent with those applied by market participants. Apache has classified these fair value measurements as Level 3 in the fair value hierarchy. The following table represents non-cash impairments of the carrying value of the Company’s proved and unproved property and equipment for the second quarters and first six months of 2017 and 2016 : Quarter Ended June 30, Six Months Ended June 30, 2017 2016 2017 2016 (In millions) Oil and Gas Property: Proved $ — $ 68 $ — $ 68 Unproved 39 66 54 108 Proved properties impaired during the quarter ended June 30, 2016 had an aggregate fair value of $143 million . On the statement of consolidated operations, unproved impairments are recorded in exploration expense, and proved impairments are recorded in impairments.
Recently Adopted Accounting Pronouncement and New Pronouncements Issued But Not Yet Adopted	Recently Adopted Accounting Pronouncement In March 2016, the Financial Accounting Standards Board (FASB) issued ASU 2016-09, “Improvements to Employee Share-Based Payment Accounting.” ASU 2016-09 simplifies several aspects of accounting for share-based payment transactions including income tax consequences, classification of awards as either equity or liabilities, and the classification on the statement of cash flows. The guidance was effective for fiscal years beginning after December 15, 2016. The Company adopted ASU 2016-09 effective January 1, 2017. Upon adoption, the Company elected to account for forfeitures as they occur rather than estimate expected forfeitures using a modified retrospective transition method. As a result of this election, the Company recorded a cumulative-effect adjustment of $11 million , representing an increase in accumulated deficit, with the offset to paid-in capital. During the first quarter of 2017, the Company recorded a $4 million deferred tax asset related to this adjustment, with the offset to accumulated deficit. ASU 2016-09 requires excess tax benefits and deficiencies to be recognized prospectively as part of the provision for income taxes rather than paid-in capital. The adoption did not have a material impact on the Company’s accounting of provision for income taxes. ASU 2016-09 also requires excess tax benefits to be presented as a component of operating cash flows rather than financing cash flows. The Company has adopted this requirement prospectively and accordingly, prior periods have not been adjusted. Excess tax benefits were not material for all periods presented. Additionally, ASU 2016-09 requires that employee taxes paid when an employer withholds shares for tax-withholding purposes be reported as financing activities in the consolidated statements of cash flows, which is how the Company has historically classified these amounts. New Pronouncements Issued But Not Yet Adopted In February 2016, the FASB issued ASU 2016-02, “Leases (Topic 842),” requiring lessees to recognize lease assets and lease liabilities for most leases classified as operating leases under previous U.S. GAAP. The guidance is effective for fiscal years beginning after December 15, 2018, with early adoption permitted. The Company will be required to use a modified retrospective approach for leases that exist or are entered into after the beginning of the earliest comparative period in the financial statements. As part of the assessment to date, the Company has formed an implementation work team, is reviewing software solutions, and began the process of evaluating contracts to determine the impact this ASU will have on its consolidated financial statements. At this time, the Company cannot reasonably estimate the financial impact this will have on its consolidated financial statements; however, the Company believes adoption and implementation of this ASU will significantly impact its balance sheet, resulting in an increase in both assets and liabilities relating to its leasing activities. In May 2014, the FASB and the International Accounting Standards Board (IASB) issued a joint revenue recognition standard, ASU 2014-09, “Revenue from Contracts with Customers (Topic 606).” The new standard removes inconsistencies in existing standards, changes the way companies recognize revenue from contracts with customers, and increases disclosure requirements. The codification was amended through additional ASUs and, as amended, requires companies to recognize revenue to depict the transfer of goods or services to customers in amounts that reflect the consideration to which the company expects to be entitled in exchange for those goods or services. The guidance is effective for annual and interim periods beginning after December 15, 2017. The standard is required to be adopted using either the full retrospective approach, with all prior periods presented adjusted, or the modified retrospective approach, with a cumulative adjustment to retained earnings on the opening balance sheet. Upon preliminary evaluation of contracts in each of the Company’s revenue streams, the Company does not expect the adoption of this ASU to have a material impact on net earnings, however, the Company is analyzing whether the classification of certain items in revenue and expense will be impacted. The Company continues to evaluate the disclosure requirements, develop accounting policies, and assess changes to the relevant business processes and the control activities within them as a result of the provisions of this ASU. The Company will adopt the new standard on January 1, 2018, utilizing the modified retrospective approach.

Summary of Significant Accoun21

Summary of Significant Accounting Policies (Tables)	6 Months Ended
	Jun. 30, 2017
Accounting Policies [Abstract]
Schedule of Non-cash Impairments of Proved and Unproved Property and Equipment	The following table represents non-cash impairments of the carrying value of the Company’s proved and unproved property and equipment for the second quarters and first six months of 2017 and 2016 : Quarter Ended June 30, Six Months Ended June 30, 2017 2016 2017 2016 (In millions) Oil and Gas Property: Proved $ — $ 68 $ — $ 68 Unproved 39 66 54 108

Acquisitions and Divestitures (

Acquisitions and Divestitures (Tables)	6 Months Ended
	Jun. 30, 2017
Business Combinations [Abstract]
Summary of the associated assets and liabilities classified as held for sale	A summary of the associated assets and liabilities classified as held for sale on Apache’s consolidated balance sheet as of June 30, 2017, is detailed below: June 30, 2017 (In millions) ASSETS Current assets $ 105 Property, plant & equipment 1,126 Assets held for sale $ 1,231 LIABILITIES Current liabilities, excluding asset retirement obligation $ 112 Asset retirement obligation 779 Other long-term liabilities 48 Liabilities held for sale $ 939

Derivative Instruments and He23

Derivative Instruments and Hedging Activities (Tables)	6 Months Ended
	Jun. 30, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of commodity derivative positions	As of June 30, 2017 , Apache had the following open natural gas derivative positions: Fixed-Price Swaps Production Period MMBtu (in 000’s) Weighted Average Fixed Price (1)(2) July - December 2017 4,370 $3.46 January - March 2018 2,700 $3.60 (1) U.S. natural gas prices represent a weighted-average of several contracts entered into on a per-million British thermal units (MMBtu) basis and are settled primarily against NYMEX Henry Hub. (2) Subsequent to June 30, 2017, Apache entered into fixed-price natural gas contracts settling against Nymex Henry Hub totaling 20,000 MMBtu/d at a weighted average price of $3.13 for the fourth quarter of 2017 and 120,000 MMBtu/d at a weighted average price of $3.33 for the first quarter of 2018. As of June 30, 2017 , Apache had the following open crude oil derivative positions: Put Options (1) Production Period Settlement Index Mbbls Weighted Average Strike Price July - December 2017 NYMEX WTI 16,928 $50.00 July - December 2017 Dated Brent 15,272 $51.00 (1) Apache paid a total premium of $100 million for these put option contracts, averaging $3.09 per barrel.

Other Current Liabilities (Tabl

Other Current Liabilities (Tables)	6 Months Ended
	Jun. 30, 2017
Payables and Accruals [Abstract]
Detail of Other Current Liabilities	The following table provides detail of the Company’s other current liabilities as of June 30, 2017 and December 31, 2016 : June 30, 2017 December 31, 2016 (In millions) Accrued operating expenses $ 76 $ 110 Accrued exploration and development 608 463 Accrued compensation and benefits 76 201 Accrued interest 146 145 Accrued income taxes 77 22 Current debt 150 — Current asset retirement obligation 35 66 Refundable deposits 142 174 Other 91 77 Total other current liabilities $ 1,401 $ 1,258

Asset Retirement Obligation (Ta

Asset Retirement Obligation (Tables)	6 Months Ended
	Jun. 30, 2017
Asset Retirement Obligation Disclosure [Abstract]
Asset Retirement Obligation	The following table describes changes to the Company’s asset retirement obligation (ARO) liability for the six -month period ended June 30, 2017 : (In millions) Asset retirement obligation at December 31, 2016 $ 2,498 Liabilities incurred 38 Liabilities divested (29 ) Liabilities settled (21 ) Accretion expense 73 Revisions in estimated liabilities 66 Liabilities held for sale (779 ) Asset retirement obligation at June 30, 2017 1,846 Less current portion 35 Asset retirement obligation, long-term $ 1,811

Debt and Financing Costs (Table

Debt and Financing Costs (Tables)	6 Months Ended
	Jun. 30, 2017
Debt Disclosure [Abstract]
Summary of Carrying Amounts and Estimated Fair Values	The following table presents the carrying amounts and estimated fair values of the Company’s outstanding debt as of June 30, 2017 and December 31, 2016 : June 30, 2017 December 31, 2016 Carrying Amount Fair Value Carrying Amount Fair Value (In millions) Commercial paper and committed bank facilities $ — $ — $ — $ — Notes and debentures 8,479 9,094 8,544 9,183 Total Debt $ 8,479 $ 9,094 $ 8,544 $ 9,183
Schedule of Debt	The following table presents the carrying value of the Company’s debt as of June 30, 2017 and December 31, 2016 : June 30, 2017 December 31, 2016 (In millions) Debt before unamortized discount and debt issuance costs $ 8,580 $ 8,650 Unamortized discount (49 ) (50 ) Debt issuance costs (52 ) (56 ) Total debt 8,479 8,544 Current maturities (150 ) — Long-term debt $ 8,329 $ 8,544
Components of Financing Costs, Net	The following table presents the components of Apache’s financing costs, net: For the Quarter Ended June 30, For the Six Months Ended June 30, 2017 2016 2017 2016 (In millions) Interest expense $ 115 $ 116 $ 231 $ 232 Amortization of deferred loan costs 2 2 4 3 Capitalized interest (13 ) (12 ) (27 ) (23 ) Loss on extinguishment of debt — — 1 — Interest income (5 ) (2 ) (10 ) (3 ) Financing costs, net $ 99 $ 104 $ 199 $ 209

Capital Stock (Tables)

Capital Stock (Tables)	6 Months Ended
	Jun. 30, 2017
Equity [Abstract]
Reconciliation of the components of basic and diluted net loss per common share	A reconciliation of the components of basic and diluted net income (loss) per common share for the quarters ended June 30, 2017 and 2016 , is presented in the table below. For the Quarter Ended June 30, 2017 2016 Income Shares Per Share Loss Shares Per Share (In millions, except per share amounts) Basic: Income (loss) attributable to common stock $ 572 381 $ 1.50 $ (244 ) 379 $ (0.65 ) Effect of Dilutive Securities: Stock options and other $ — 2 $ — $ — — $ — Diluted: Income (loss) attributable to common stock $ 572 383 $ 1.50 $ (244 ) 379 $ (0.65 ) For the Six Months Ended June 30, 2017 2016 Income Shares Per Share Loss Shares Per Share (In millions, except per share amounts) Basic: Income (loss) attributable to common stock $ 785 380 $ 2.06 $ (616 ) 379 $ (1.63 ) Effect of Dilutive Securities: Stock options and other $ — 3 $ (0.01 ) $ — — $ — Diluted: Income (loss) attributable to common stock $ 785 383 $ 2.05 $ (616 ) 379 $ (1.63 )

Business Segment Information (T

Business Segment Information (Tables)	6 Months Ended
	Jun. 30, 2017
Segment Reporting [Abstract]
Financial Segment Information	Financial information for each area is presented below: United States Canada Egypt (1) North Sea Other International Total (In millions) For the Quarter Ended June 30, 2017 Oil and Gas Production Revenues $ 491 $ 93 $ 521 $ 241 $ — $ 1,346 Operating Income (Loss) (2) $ (17 ) $ (18 ) $ 213 $ 4 $ (2 ) $ 180 Other Income (Expense): Loss on divestitures, net (21 ) Other 59 General and administrative (106 ) Transaction, reorganization, and separation (4 ) Financing costs, net (99 ) Income Before Income Taxes $ 9 For the Six Months Ended June 30, 2017 Oil and Gas Production Revenues $ 1,043 $ 195 $ 1,112 $ 508 $ — $ 2,858 Operating Income (Loss) (2) $ 43 $ (31 ) $ 514 $ 42 $ (23 ) $ 545 Other Income (Expense): Gain on divestitures, net 320 Other 84 General and administrative (209 ) Transaction, reorganization, and separation 6 Financing costs, net (199 ) Income Before Income Taxes $ 547 Total Assets $ 12,530 $ 1,476 $ 4,778 $ 3,772 $ 46 $ 22,602 United States Canada Egypt (1) North Sea Other International Total (In millions) For the Quarter Ended June 30, 2016 Oil and Gas Production Revenues $ 520 $ 73 $ 542 $ 251 $ — $ 1,386 Operating Income (Loss) (3) $ (109 ) $ (57 ) $ 220 $ (115 ) $ — $ (61 ) Other Income (Expense): Gain on divestitures, net 17 Other (21 ) General and administrative (103 ) Transaction, reorganization, and separation (9 ) Financing costs, net (104 ) Loss Before Income Taxes $ (281 ) For the Six Months Ended June 30, 2016 Oil and Gas Production Revenues $ 929 $ 156 $ 934 $ 454 $ — $ 2,473 Operating Income (Loss) (3) $ (267 ) $ (118 ) $ 261 $ (101 ) $ (1 ) $ (226 ) Other Income (Expense): Gain on divestitures, net 16 Other (24 ) General and administrative (196 ) Transaction, reorganization, and separation (24 ) Financing costs, net (209 ) Loss Before Income Taxes $ (663 ) Total Assets $ 12,383 $ 2,070 $ 5,520 $ 4,326 $ 47 $ 24,346 (1) Includes a noncontrolling interest in Egypt. (2) Operating income (loss) consists of oil and gas production revenues less lease operating expenses, gathering and transportation costs, taxes other than income, exploration costs, depreciation, depletion, and amortization, asset retirement obligation accretion, and impairments. The operating income (loss) of U.S. and Canada includes leasehold impairments totaling $38 million and $1 million , respectively, for the second quarter of 2017 . The operating income (loss) of U.S., Canada, and North Sea includes leasehold and other asset impairments totaling $52 million , $2 million , and $8 million , respectively, for the first six months of 2017 . (3) The operating income (loss) of U.S., Canada, and North Sea includes leasehold, property, and other asset impairments totaling $125 million , $9 million , and $105 million , respectively, for the second quarter of 2016 . The operating income (loss) of U.S., Canada, and North Sea includes leasehold, property, and other asset impairments totaling $166 million , $10 million , and $105 million , respectively, for the first six months of 2016 .

Supplemental Guarantor Inform29

Supplemental Guarantor Information (Tables)	6 Months Ended
	Jun. 30, 2017
Guarantees [Abstract]
Supplemental Condensed Consolidating Statement of Operations	APACHE CORPORATION AND SUBSIDIARIES CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS For the Quarter Ended June 30, 2017 Apache Corporation Apache Finance Canada All Other Subsidiaries of Apache Corporation Reclassifications & Eliminations Consolidated (In millions) REVENUES AND OTHER: Oil and gas production revenues $ 248 $ — $ 1,098 $ — $ 1,346 Equity in net income (loss) of affiliates (34 ) (26 ) — 60 — Other 62 8 (11 ) — 59 Gain (loss) on divestiture 34 — (55 ) — (21 ) 310 (18 ) 1,032 60 1,384 OPERATING EXPENSES: Lease operating expenses 79 — 293 — 372 Gathering and transportation 7 — 41 — 48 Taxes other than income 24 — 5 — 29 Exploration 54 — 54 — 108 General and administrative 91 — 15 — 106 Transaction, reorganization, and separation 4 — — — 4 Depreciation, depletion, and amortization 130 — 442 — 572 Asset retirement obligation accretion 5 — 32 — 37 Financing costs, net 60 6 33 — 99 454 6 915 — 1,375 NET INCOME (LOSS) BEFORE INCOME TAXES (144 ) (24 ) 117 60 9 Provision (benefit) for income taxes (716 ) 2 110 — (604 ) NET INCOME (LOSS) INCLUDING NONCONTROLLING INTEREST 572 (26 ) 7 60 613 Net income attributable to noncontrolling interest — — 41 — 41 NET INCOME (LOSS) ATTRIBUTABLE TO COMMON STOCK $ 572 $ (26 ) $ (34 ) $ 60 $ 572 APACHE CORPORATION AND SUBSIDIARIES CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS For the Quarter Ended June 30, 2016 Apache Corporation Apache Finance Canada All Other Subsidiaries of Apache Corporation Reclassifications & Eliminations Consolidated (In millions) REVENUES AND OTHER: Oil and gas production revenues $ 270 $ — $ 1,116 $ — $ 1,386 Equity in net income (loss) of affiliates (76 ) 6 — 70 — Other (22 ) 9 (8 ) — (21 ) Gain (loss) on divestiture (1 ) — 18 — 17 171 15 1,126 70 1,382 OPERATING EXPENSES: Lease operating expenses 66 — 293 — 359 Gathering and transportation 10 — 42 — 52 Taxes other than income 22 — 43 — 65 Exploration 76 — 15 — 91 General and administrative 86 — 17 — 103 Transaction, reorganization, and separation 9 — — — 9 Depreciation, depletion, and amortization 159 — 510 — 669 Asset retirement obligation accretion 5 — 33 — 38 Impairments 61 — 112 — 173 Financing costs, net 64 7 33 — 104 558 7 1,098 — 1,663 NET INCOME (LOSS) BEFORE INCOME TAXES (387 ) 8 28 70 (281 ) Provision (benefit) for income taxes (143 ) 2 60 — (81 ) NET INCOME (LOSS) INCLUDING NONCONTROLLING INTEREST (244 ) 6 (32 ) 70 (200 ) Net income attributable to noncontrolling interest — — 44 — 44 NET INCOME (LOSS) ATTRIBUTABLE TO COMMON STOCK $ (244 ) $ 6 $ (76 ) $ 70 $ (244 ) APACHE CORPORATION AND SUBSIDIARIES CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS For the Six Months Ended June 30, 2017 Apache Corporation Apache Finance Canada All Other Subsidiaries of Apache Corporation Reclassifications & Eliminations Consolidated (In millions) REVENUES AND OTHER: Oil and gas production revenues $ 532 $ — $ 2,326 $ — $ 2,858 Equity in net income (loss) of affiliates 188 (27 ) — (161 ) — Other 70 16 (2 ) — 84 Gain on divestitures 175 — 145 — 320 965 (11 ) 2,469 (161 ) 3,262 OPERATING EXPENSES: Lease operating expenses 160 — 548 — 708 Gathering and transportation 14 — 91 — 105 Taxes other than income 47 — 24 — 71 Exploration 82 — 118 — 200 General and administrative 181 — 28 — 209 Transaction, reorganization, and separation (6 ) — — — (6 ) Depreciation, depletion, and amortization 265 — 883 — 1,148 Asset retirement obligation accretion 11 — 62 — 73 Impairments — — 8 — 8 Financing costs, net 120 12 67 — 199 874 12 1,829 — 2,715 NET INCOME (LOSS) BEFORE INCOME TAXES 91 (23 ) 640 (161 ) 547 Provision (benefit) for income taxes (694 ) 4 357 — (333 ) NET INCOME (LOSS) INCLUDING NONCONTROLLING INTEREST 785 (27 ) 283 (161 ) 880 Net income attributable to noncontrolling interest — — 95 — 95 NET INCOME (LOSS) ATTRIBUTABLE TO COMMON STOCK $ 785 $ (27 ) $ 188 $ (161 ) $ 785 APACHE CORPORATION AND SUBSIDIARIES CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS For the Six Months Ended June 30, 2016 Apache Corporation Apache Finance Canada All Other Subsidiaries of Apache Corporation Reclassifications & Eliminations Consolidated (In millions) REVENUES AND OTHER: Oil and gas production revenues $ 487 $ — $ 1,986 $ — $ 2,473 Equity in net income (loss) of affiliates (184 ) (20 ) — 204 — Other 6 21 (51 ) — (24 ) Gain (loss) on divestitures (2 ) — 18 — 16 307 1 1,953 204 2,465 OPERATING EXPENSES: Lease operating expenses 144 — 593 — 737 Gathering and transportation 19 — 85 — 104 Taxes other than income 43 — 33 — 76 Exploration 126 — 60 — 186 General and administrative 163 — 33 — 196 Transaction, reorganization, and separation 24 — — — 24 Depreciation, depletion, and amortization 315 — 1,032 — 1,347 Asset retirement obligation accretion 9 — 67 — 76 Impairments 61 — 112 — 173 Financing costs, net 125 17 67 — 209 1,029 17 2,082 — 3,128 NET INCOME (LOSS) BEFORE INCOME TAXES (722 ) (16 ) (129 ) 204 (663 ) Provision (benefit) for income taxes (106 ) 4 10 — (92 ) NET INCOME (LOSS) INCLUDING NONCONTROLLING INTEREST (616 ) (20 ) (139 ) 204 (571 ) Net income attributable to noncontrolling interest — — 45 — 45 NET INCOME (LOSS) ATTRIBUTABLE TO COMMON STOCK $ (616 ) $ (20 ) $ (184 ) $ 204 $ (616 )
Supplemental Condensed Consolidating Statement of Cash Flows	APACHE CORPORATION AND SUBSIDIARIES CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS For the Six Months Ended June 30, 2017 Apache Corporation Apache Finance Canada All Other Subsidiaries of Apache Corporation Reclassifications & Eliminations Consolidated (In millions) CASH PROVIDED BY (USED IN) OPERATING ACTIVITIES $ (280 ) $ (13 ) $ 1,499 $ — $ 1,206 CASH FLOWS FROM INVESTING ACTIVITIES: Additions to oil and gas property (235 ) — (648 ) — (883 ) Leasehold and property acquisitions (58 ) — (9 ) — (67 ) Additions to gas gathering, transmission, and processing facilities — — (274 ) — (274 ) Proceeds from sale of Midale and House Mountain — — 228 — 228 Proceeds from sale of oil and gas properties — — 483 — 483 Investment in subsidiaries, net 668 — — (668 ) — Other (9 ) — (7 ) — (16 ) NET CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES 366 — (227 ) (668 ) (529 ) CASH FLOWS FROM FINANCING ACTIVITIES: Intercompany borrowings — 259 (927 ) 668 — Payment of fixed-rate debt (70 ) — — — (70 ) Distributions to noncontrolling interest — — (170 ) — (170 ) Common stock activity, net — — — — — Dividends paid (190 ) — — — (190 ) Other — — 43 — 43 NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES (260 ) 259 (1,054 ) 668 (387 ) NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS (174 ) 246 218 — 290 CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR 344 — 1,033 — 1,377 CASH AND CASH EQUIVALENTS AT END OF PERIOD $ 170 $ 246 $ 1,251 $ — $ 1,667 APACHE CORPORATION AND SUBSIDIARIES CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS For the Six Months Ended June 30, 2016 Apache Corporation Apache Finance Canada All Other Subsidiaries of Apache Corporation Reclassifications & Eliminations Consolidated (In millions) CASH PROVIDED BY OPERATING ACTIVITIES $ 110 $ — $ 873 $ — $ 983 CASH FLOWS FROM INVESTING ACTIVITIES: Additions to oil and gas property (53 ) — (872 ) — (925 ) Leasehold and property acquisitions (53 ) — (65 ) — (118 ) Investment in subsidiaries, net (39 ) — — 39 — Other (3 ) — 80 — 77 NET CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES (148 ) — (857 ) 39 (966 ) CASH FLOWS FROM FINANCING ACTIVITIES: Intercompany borrowings — 1 38 (39 ) — Distributions to noncontrolling interest — — (93 ) — (93 ) Dividends paid (189 ) — — — (189 ) Other 1 (1 ) (1 ) — (1 ) NET CASH USED IN FINANCING ACTIVITIES (188 ) — (56 ) (39 ) (283 ) NET DECREASE IN CASH AND CASH EQUIVALENTS (226 ) — (40 ) — (266 ) CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR 378 — 1,089 — 1,467 CASH AND CASH EQUIVALENTS AT END OF PERIOD $ 152 $ — $ 1,049 $ — $ 1,201
Supplemental Condensed Consolidating Balance Sheet	APACHE CORPORATION AND SUBSIDIARIES CONDENSED CONSOLIDATING BALANCE SHEET June 30, 2017 Apache Corporation Apache Finance Canada All Other Subsidiaries of Apache Corporation Reclassifications & Eliminations Consolidated (In millions) ASSETS CURRENT ASSETS: Cash and cash equivalents $ 170 $ 246 $ 1,251 $ — $ 1,667 Receivables, net of allowance 300 — 715 — 1,015 Inventories 24 — 392 — 416 Drilling advances 5 — 94 — 99 Assets held for sale — — 1,231 — 1,231 Prepaid assets and other 178 — 41 — 219 Intercompany receivable 5,453 — — (5,453 ) — 6,130 246 3,724 (5,453 ) 4,647 PROPERTY AND EQUIPMENT, NET 7,232 — 10,319 — 17,551 OTHER ASSETS: Intercompany receivable — — 12,876 (12,876 ) — Equity in affiliates 15,705 (1,252 ) 691 (15,144 ) — Deferred charges and other 105 1,000 299 (1,000 ) 404 $ 29,172 $ (6 ) $ 27,909 $ (34,473 ) $ 22,602 LIABILITIES AND SHAREHOLDERS’ EQUITY CURRENT LIABILITIES: Accounts payable $ 371 $ — $ 162 $ — $ 533 Liabilities held for sale — — 939 — 939 Other current liabilities 699 4 698 — 1,401 Intercompany payable — 247 5,206 (5,453 ) — 1,070 251 7,005 (5,453 ) 2,873 LONG-TERM DEBT 8,032 297 — — 8,329 DEFERRED CREDITS AND OTHER NONCURRENT LIABILITIES: Intercompany payable 12,876 — — (12,876 ) — Income taxes (968 ) 5 2,021 — 1,058 Asset retirement obligation 355 — 1,456 — 1,811 Other 908 2 356 (1,000 ) 266 13,171 7 3,833 (13,876 ) 3,135 COMMITMENTS AND CONTINGENCIES APACHE SHAREHOLDERS’ EQUITY 6,899 (561 ) 15,705 (15,144 ) 6,899 Noncontrolling interest — — 1,366 — 1,366 TOTAL EQUITY 6,899 (561 ) 17,071 (15,144 ) 8,265 $ 29,172 $ (6 ) $ 27,909 $ (34,473 ) $ 22,602 APACHE CORPORATION AND SUBSIDIARIES CONDENSED CONSOLIDATING BALANCE SHEET December 31, 2016 Apache Corporation Apache Finance Canada All Other Subsidiaries of Apache Corporation Reclassifications & Eliminations Consolidated (In millions) ASSETS CURRENT ASSETS: Cash and cash equivalents $ 344 $ — $ 1,033 $ — $ 1,377 Receivables, net of allowance 358 — 770 — 1,128 Inventories 29 — 447 — 476 Drilling advances 4 — 77 — 81 Prepaid assets and other 134 — 45 — 179 Intercompany receivable 5,038 — — (5,038 ) — 5,907 — 2,372 (5,038 ) 3,241 PROPERTY AND EQUIPMENT, NET 7,014 — 11,853 — 18,867 OTHER ASSETS: Intercompany receivable — — 12,152 (12,152 ) — Equity in affiliates 15,517 (1,240 ) 706 (14,983 ) — Deferred charges and other 97 1,000 314 (1,000 ) 411 $ 28,535 $ (240 ) $ 27,397 $ (33,173 ) $ 22,519 LIABILITIES AND SHAREHOLDERS’ EQUITY CURRENT LIABILITIES: Accounts payable $ 371 $ (12 ) $ 226 $ — $ 585 Other current liabilities 653 3 602 — 1,258 Intercompany payable — — 5,038 (5,038 ) — 1,024 (9 ) 5,866 (5,038 ) 1,843 LONG-TERM DEBT 8,247 297 — — 8,544 DEFERRED CREDITS AND OTHER NONCURRENT LIABILITIES: Intercompany payable 12,152 — — (12,152 ) — Income taxes (271 ) 5 1,976 — 1,710 Asset retirement obligation 257 — 2,175 — 2,432 Other 888 1 422 (1,000 ) 311 13,026 6 4,573 (13,152 ) 4,453 COMMITMENTS AND CONTINGENCIES APACHE SHAREHOLDERS’ EQUITY 6,238 (534 ) 15,517 (14,983 ) 6,238 Noncontrolling interest — — 1,441 — 1,441 TOTAL EQUITY 6,238 (534 ) 16,958 (14,983 ) 7,679 $ 28,535 $ (240 ) $ 27,397 $ (33,173 ) $ 22,519

Summary of Significant Accoun30

Summary of Significant Accounting Policies (Detail) - USD ($) $ in Millions	Jan. 01, 2016	Dec. 31, 2015	Jun. 30, 2017	Mar. 31, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Schedule Of Significant Accounting Policies [Line Items]
Asset impairment charges			$ 0		$ 173	$ 8	$ 173
U.K. Petroleum Revenue Tax rate	0.00%	35.00%
Impairment of certain GTP assets					105		105
Oil and gas property, fair value					143		143
Deferred tax assets			674			674
Accounting Standards Update 2016-09, Excess Tax Benefit Component [Member]
Schedule Of Significant Accounting Policies [Line Items]
Deferred tax assets								$ 4
Additional Paid-in Capital [Member] | Accounting Standards Update 2016-09 [Member]
Schedule Of Significant Accounting Policies [Line Items]
Cumulative effect of new accounting principle								11
Accumulated Deficit [Member] | Accounting Standards Update 2016-09 [Member]
Schedule Of Significant Accounting Policies [Line Items]
Cumulative effect of new accounting principle								(11)
Accumulated Deficit [Member] | Accounting Standards Update 2016-09, Excess Tax Benefit Component [Member]
Schedule Of Significant Accounting Policies [Line Items]
Cumulative effect of new accounting principle								$ 4
Gas Gathering, Transmission, and Processing Assets [Member]
Schedule Of Significant Accounting Policies [Line Items]
Oil and gas property, fair value					175		175
Oil and Gas Properties, Proved [Member]
Schedule Of Significant Accounting Policies [Line Items]
Impairments for oil and gas properties			0		68	0	68
Oil and Gas Properties, Unproved [Member]
Schedule Of Significant Accounting Policies [Line Items]
Impairments for oil and gas properties			$ 39		66	$ 54	108
Recoverable PRT Decommissioning Asset [Member]
Schedule Of Significant Accounting Policies [Line Items]
Asset impairment charges				$ 8
US and Canada [Member] | Oil and Gas Properties, Proved [Member]
Schedule Of Significant Accounting Policies [Line Items]
Impairments for oil and gas properties					$ 68		$ 68

Acquisitions and Divestitures -

Acquisitions and Divestitures - Additional Information (Detail) - USD ($) $ in Millions	Jun. 30, 2017	Jul. 31, 2017	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Business Acquisition [Line Items]
Refundable deposits for sale of non-core assets							$ 40
Gain on sale of non-core assets			$ (21)	$ 17	$ 320	$ 16
Equity ownership percentage	100.00%		100.00%		100.00%
Refundable deposits	$ 142		$ 142		$ 142		$ 174
Leasehold and property acquisitions			18	99	67	118
Scottish Area Gas Evacuation System [Member]
Business Acquisition [Line Items]
Equity ownership percentage							30.28%
Beryl Pipeline [Member]
Business Acquisition [Line Items]
Equity ownership percentage							60.56%
Permian Region [Member]
Business Acquisition [Line Items]
Proceeds from sale of non-core assets					522
Gain on sale of non-core assets					372
Midale and House Mountain [Member] | Disposed of by sale [Member]
Business Acquisition [Line Items]
Loss recognized on sale	52
Apache Canada Ltd. (ACL) [Member] | Held for sale [Member]
Business Acquisition [Line Items]
Currency translation losses recorded in Accumulated Other Comprehensive Loss	$ 109		109		109
Pretax losses from operations			$ 93	$ 62	$ 129	$ 161
Subsequent Event [Member]
Business Acquisition [Line Items]
Proceeds from divestiture		$ 713

Acquisitions and Divestitures32

Acquisitions and Divestitures - Assets and Liabilities Held for Sale (Detail) - USD ($) $ in Millions	Jun. 30, 2017	Dec. 31, 2016
ASSETS
Assets held for sale	$ 1,231	$ 0
LIABILITIES
Liabilities held for sale	939	$ 0
Apache Canada Ltd. (ACL) [Member] | Held for sale [Member]
ASSETS
Current assets	105
Property, plant & equipment	1,126
Assets held for sale	1,231
LIABILITIES
Current liabilities, excluding asset retirement obligation	112
Asset retirement obligation	779
Other long-term liabilities	48
Liabilities held for sale	$ 939

Derivative Instruments and He33

Derivative Instruments and Hedging Activities (Detail) bbl in Thousands, MMBTU in Thousands, $ in Millions	3 Months Ended			6 Months Ended
	Mar. 31, 2018MMBTU$ / MMBTU	Dec. 31, 2017MMBTU$ / MMBTU	Jun. 30, 2017USD ($)$ / MMBTU$ / bbl	Jun. 30, 2017USD ($)MMBTU$ / MMBTU$ / bblbbl
Not Designated as Hedging Instrument [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Unrealized gain on fair value hedging instruments | $			$ 41	$ 41
Crude Oil [Member] | Commodity Option [Member] | Not Designated as Hedging Instrument [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, cost of hedge | $				$ 100
Derivative, cost of hedge (USD per bbl) | $ / bbl				3.09
Natural Gas [Member] | Forecast [Member] | Subsequent Event [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, nonmonetary notional amount, energy measure (MMBtu) | MMBTU	120	20
Derivative, weighted-average fixed price (USD per MMBtu) | $ / MMBTU	3.33	3.13
Prepaid Expenses and Other [Member] | Fair Value, Inputs, Level 2 [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Fair value of derivative asset | $			$ 141	$ 141
2017 [Member] | Crude Oil [Member] | NYMEX WTI [Member] | Not Designated as Hedging Instrument [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, nonmonetary notional amount, volume | bbl				16,928
Derivative, weighted average strike price (USD per bbl) | $ / bbl			50	50
2017 [Member] | Crude Oil [Member] | Date Brent [Member] | Not Designated as Hedging Instrument [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, nonmonetary notional amount, volume | bbl				15,272
Derivative, weighted average strike price (USD per bbl) | $ / bbl			51	51
2017 [Member] | Natural Gas [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, nonmonetary notional amount, energy measure (MMBtu) | MMBTU				4,370
Derivative, weighted-average fixed price (USD per MMBtu) | $ / MMBTU			3.46	3.46
2018 [Member] | Natural Gas [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, nonmonetary notional amount, energy measure (MMBtu) | MMBTU				2,700
Derivative, weighted-average fixed price (USD per MMBtu) | $ / MMBTU			3.60	3.60

Capitalized Exploratory Well 34

Capitalized Exploratory Well Costs (Detail) - USD ($)	6 Months Ended
	Jun. 30, 2017	Dec. 31, 2016
Extractive Industries [Abstract]
Capitalized exploratory well costs	$ 274,000,000	$ 264,000,000
Capitalized exploratory well costs that have been capitalized for period greater than one year	$ 0

Other Current Liabilities (Deta

Other Current Liabilities (Detail) - USD ($) $ in Millions	Jun. 30, 2017	Dec. 31, 2016
Payables and Accruals [Abstract]
Accrued operating expenses	$ 76	$ 110
Accrued exploration and development	608	463
Accrued compensation and benefits	76	201
Accrued interest	146	145
Accrued income taxes	77	22
Current debt	150	0
Current asset retirement obligation	35	66
Refundable deposits	142	174
Other	91	77
Total other current liabilities	$ 1,401	$ 1,258

Asset Retirement Obligation (De

Asset Retirement Obligation (Detail) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2017	Dec. 31, 2016
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Asset retirement obligation at the beginning of period	$ 2,498
Liabilities incurred	38
Liabilities divested	(29)
Liabilities settled	(21)
Accretion expense	73
Revisions in estimated liabilities	66
Liabilities held for sale	(779)
Asset retirement obligation at the end of period	1,846
Less current portion	35	$ 66
Asset retirement obligation, long-term	$ 1,811	$ 2,432

Income Taxes (Detail)

Income Taxes (Detail) $ in Millions	Jun. 30, 2017USD ($)
Income Tax Disclosure [Abstract]
Deferred tax assets	$ 674

Debt and Financing Costs - Summ

Debt and Financing Costs - Summary of Carrying Amounts and Estimated Fair Values (Detail) - USD ($) $ in Millions	Jun. 30, 2017	Dec. 31, 2016
Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument	$ 9,094	$ 9,183
Carrying Amount [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument	8,479	8,544
Notes and Debentures [Member] | Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument	9,094	9,183
Notes and Debentures [Member] | Carrying Amount [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument	8,479	8,544
Commercial Paper [Member] | Commercial Paper and Committed Bank Facilities [Member] | Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument	0	0
Commercial Paper [Member] | Commercial Paper and Committed Bank Facilities [Member] | Carrying Amount [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument	$ 0	$ 0

Debt and Financing Costs - Sche

Debt and Financing Costs - Schedule of Debt (Detail) - USD ($) $ in Millions	Jun. 30, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Long-term debt	$ 8,329	$ 8,544
Unsecured Debt [Member]
Debt Instrument [Line Items]
Debt before unamortized discount and debt issuance costs	8,580	8,650
Unamortized discount	(49)	(50)
Debt issuance costs	(52)	(56)
Total debt	8,479	8,544
Current maturities	(150)	0
Long-term debt	$ 8,329	$ 8,544

Debt and Financing Costs - Addi

Debt and Financing Costs - Additional Information (Detail)	1 Months Ended	3 Months Ended			6 Months Ended
	Jan. 31, 2017USD ($)	Jun. 30, 2017USD ($)	Dec. 31, 2016USD ($)	Jun. 30, 2016USD ($)	Jun. 30, 2017USD ($)Contract	Jun. 30, 2016USD ($)	Jun. 30, 2017GBP (£)	Nov. 30, 2016USD ($)
Debt Instrument [Line Items]
Letters of credit outstanding, amount | £							£ 147,500,000
Loss on extinguishment of debt	$ 1,000,000	$ 0		$ 0	$ 1,000,000	$ 0
Commercial Paper [Member]
Debt Instrument [Line Items]
Debt instrument, face amount		3,500,000,000			$ 3,500,000,000
Debt instrument term					270 days
Letter of Credit [Member]
Debt Instrument [Line Items]
Number of debt instruments (in contracts) | Contract					3
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Credit facility maximum borrowing capacity		3,500,000,000			$ 3,500,000,000
Credit Facility Matures in June 2020 [Member] | Letter of Credit [Member]
Debt Instrument [Line Items]
Line of credit amount		750,000,000			$ 750,000,000
Credit Facility Matures in June 2020 [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit facility, number of extension Options | Contract					2
Extended financing agreement term					1 year
Credit Facility Matures in February 2020 [Member] | Letter of Credit [Member]
Debt Instrument [Line Items]
Debt instrument, face amount | £							900,000,000
Credit facility maximum borrowing capacity | £							£ 1,075,000,000
Unsecured Debt [Member]
Debt Instrument [Line Items]
Debt instrument, face amount		8,580,000,000	$ 8,650,000,000		$ 8,580,000,000
Unsecured Debt [Member] | 7% senior notes due February 1, 2018 [Member]
Debt Instrument [Line Items]
Debt instrument, face amount		$ 150,000,000			$ 150,000,000
Debt instrument, stated interest rate		7.00%			7.00%		7.00%
Senior Notes [Member]
Debt Instrument [Line Items]
Repurchased face amount of debt	69,000,000		181,000,000
Senior notes purchased and canceled	71,000,000		182,000,000
Debt instrument, premium amount	$ 1,000,000		$ 500,000
Maximum [Member] | Credit Facility Matures in June 2020 [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit facility aggregate commitment amount					$ 4,500,000,000
Maximum [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Repurchased face amount of debt								$ 250,000,000

Debt and Financing Costs - Comp

Debt and Financing Costs - Components of Financing Costs, Net (Detail) - USD ($) $ in Millions	1 Months Ended	3 Months Ended		6 Months Ended
	Jan. 31, 2017	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Debt Disclosure [Abstract]
Interest expense		$ 115	$ 116	$ 231	$ 232
Amortization of deferred loan costs		2	2	4	3
Capitalized interest		(13)	(12)	(27)	(23)
Loss on extinguishment of debt	$ 1	0	0	1	0
Interest income		(5)	(2)	(10)	(3)
Financing costs, net		$ 99	$ 104	$ 199	$ 209

Commitments and Contingencies (

Commitments and Contingencies (Detail) - USD ($)	Jun. 06, 2016	Mar. 21, 2016	Mar. 20, 2016	Jun. 30, 2017
Commitment And Contingencies [Line Items]
Accrued liability for legal contingencies				$ 26,000,000
Undiscounted reserve for environmental remediation				45,000,000
Canada [Member]
Commitment And Contingencies [Line Items]
Undiscounted reserve for environmental remediation				$ 41,000,000
Apollo Exploration Lawsuit [Member]
Commitment And Contingencies [Line Items]
Plaintiffs alleged damages		$ 500,000,000
Apollo Exploration Lawsuit [Member] | Minimum [Member]
Commitment And Contingencies [Line Items]
Plaintiffs alleged damages			$ 1,100,000,000
Australian Operations Divestiture Dispute [Member] | Australian Operations [Member]
Commitment And Contingencies [Line Items]
Placeholder notice of claim period	1 year
Divestiture of business, tax and other issues contingency amount	$ 200,000,000

Capital Stock - Net Income (los

Capital Stock - Net Income (loss) Per Common Share (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Basic:
Income (loss) attributable to common stock	$ 572	$ (244)	$ 785	$ (616)
Income (loss) attributable to common stock, shares	381	379	380	379
Basic net income (loss) per share (in USD per share)	$ 1.50	$ (0.65)	$ 2.06	$ (1.63)
Effect of Dilutive Securities:
Stock options and other, shares	2	0	3	0
Stock options and other (in USD per share)			$ (0.01)
Diluted:
Income (loss) attributable to common stock	$ 572	$ (244)	$ 785	$ (616)
Income (loss) attributable to common stock, shares	383	379	383	379
Diluted net income (loss) per share (in USD per share)	$ 1.50	$ (0.65)	$ 2.05	$ (1.63)

Capital Stock - Additional Info

Capital Stock - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended			6 Months Ended		49 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Mar. 31, 2016	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017
Equity [Abstract]
Options and restricted stock, anti-dilutive	8,500,000	6,300,000		8,600,000	7,400,000
Dividends, common stock	$ 95	$ 95	$ 95	$ 190	$ 189
Common stock, shares authorized for repurchase	40,000,000			40,000,000		40,000,000
Common stock share repurchase, shares						32,200,000
Common stock share repurchase average price (in USD per share)						$ 88.96

Business Segment Information -

Business Segment Information - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2017Segment
Segment Reporting [Abstract]
Number of reporting segments	4

Business Segment Information 46

Business Segment Information - Financial Segment Information (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Segment Reporting Information [Line Items]
Oil and Gas Production Revenues	$ 1,346	$ 1,386	$ 2,858	$ 2,473
Operating Income (Loss)	180	(61)	545	(226)
Other Income (Expense):
Gain (loss) on divestitures	(21)	17	320	16
Other	59	(21)	84	(24)
General and administrative	(106)	(103)	(209)	(196)
Transaction, reorganization, and separation	(4)	(9)	6	(24)
Financing costs, net	(99)	(104)	(199)	(209)
NET INCOME (LOSS) BEFORE INCOME TAXES	9	(281)	547	(663)
Total Assets	22,602	24,346	22,602	24,346	$ 22,519
Operating Segments [Member] | United States [Member]
Segment Reporting Information [Line Items]
Oil and Gas Production Revenues	491	520	1,043	929
Operating Income (Loss)	(17)	(109)	43	(267)
Other Income (Expense):
Total Assets	12,530	12,383	12,530	12,383
Asset impairments	38	125	52	166
Operating Segments [Member] | Canada [Member]
Segment Reporting Information [Line Items]
Oil and Gas Production Revenues	93	73	195	156
Operating Income (Loss)	(18)	(57)	(31)	(118)
Other Income (Expense):
Total Assets	1,476	2,070	1,476	2,070
Asset impairments	1	9	2	10
Operating Segments [Member] | Egypt [Member]
Segment Reporting Information [Line Items]
Oil and Gas Production Revenues	521	542	1,112	934
Operating Income (Loss)	213	220	514	261
Other Income (Expense):
Total Assets	4,778	5,520	4,778	5,520
Operating Segments [Member] | North Sea [Member]
Segment Reporting Information [Line Items]
Oil and Gas Production Revenues	241	251	508	454
Operating Income (Loss)	4	(115)	42	(101)
Other Income (Expense):
Total Assets	3,772	4,326	3,772	4,326
Asset impairments		105	8	105
Other International [Member]
Segment Reporting Information [Line Items]
Oil and Gas Production Revenues	0	0	0	0
Operating Income (Loss)	(2)	0	(23)	(1)
Other Income (Expense):
Total Assets	$ 46	$ 47	$ 46	$ 47

Supplemental Guarantor Inform47

Supplemental Guarantor Information - Additional Information (Detail) - USD ($) $ in Millions	Jun. 30, 2017	Dec. 31, 1999
Condensed Financial Statements, Captions [Line Items]
Equity ownership percentage	100.00%
Notes Due 2029 [Member]
Condensed Financial Statements, Captions [Line Items]
Publicly traded notes		$ 300

Supplemental Guarantor Inform48

Supplemental Guarantor Information - Statement of Operations (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
REVENUES AND OTHER:
Oil and Gas Production Revenues	$ 1,346	$ 1,386	$ 2,858	$ 2,473
Equity in net income (loss) of affiliates	0	0	0	0
Other	59	(21)	84	(24)
Gain (loss) on divestiture	(21)	17	320	16
Total revenues and other	1,384	1,382	3,262	2,465
OPERATING EXPENSES:
Lease operating expenses	372	359	708	737
Gathering and transportation	48	52	105	104
Taxes other than income	29	65	71	76
Exploration	108	91	200	186
General and administrative	106	103	209	196
Transaction, reorganization, and separation	4	9	(6)	24
Depreciation, depletion, and amortization	572	669	1,148	1,347
Asset retirement obligation accretion	37	38	73	76
Impairments	0	173	8	173
Financing costs, net	99	104	199	209
Total operating expenses	1,375	1,663	2,715	3,128
NET INCOME (LOSS) BEFORE INCOME TAXES	9	(281)	547	(663)
Provision (benefit) for income taxes	(604)	(81)	(333)	(92)
NET INCOME (LOSS) INCLUDING NONCONTROLLING INTEREST	613	(200)	880	(571)
Net income attributable to noncontrolling interest	41	44	95	45
NET INCOME (LOSS) ATTRIBUTABLE TO COMMON STOCK	572	(244)	785	(616)
Reclassifications & Eliminations [Member]
REVENUES AND OTHER:
Oil and Gas Production Revenues	0	0	0	0
Equity in net income (loss) of affiliates	60	70	(161)	204
Other	0	0	0	0
Gain (loss) on divestiture	0	0	0	0
Total revenues and other	60	70	(161)	204
OPERATING EXPENSES:
Lease operating expenses	0	0	0	0
Gathering and transportation	0	0	0	0
Taxes other than income	0	0	0	0
Exploration	0	0	0	0
General and administrative	0	0	0	0
Transaction, reorganization, and separation	0	0	0	0
Depreciation, depletion, and amortization	0	0	0	0
Asset retirement obligation accretion	0	0	0	0
Impairments		0	0	0
Financing costs, net	0	0	0	0
Total operating expenses	0	0	0	0
NET INCOME (LOSS) BEFORE INCOME TAXES	60	70	(161)	204
Provision (benefit) for income taxes	0	0	0	0
NET INCOME (LOSS) INCLUDING NONCONTROLLING INTEREST	60	70	(161)	204
Net income attributable to noncontrolling interest	0	0	0	0
NET INCOME (LOSS) ATTRIBUTABLE TO COMMON STOCK	60	70	(161)	204
Apache Corporation [Member]
REVENUES AND OTHER:
Oil and Gas Production Revenues	248	270	532	487
Equity in net income (loss) of affiliates	(34)	(76)	188	(184)
Other	62	(22)	70	6
Gain (loss) on divestiture	34	(1)	175	(2)
Total revenues and other	310	171	965	307
OPERATING EXPENSES:
Lease operating expenses	79	66	160	144
Gathering and transportation	7	10	14	19
Taxes other than income	24	22	47	43
Exploration	54	76	82	126
General and administrative	91	86	181	163
Transaction, reorganization, and separation	4	9	(6)	24
Depreciation, depletion, and amortization	130	159	265	315
Asset retirement obligation accretion	5	5	11	9
Impairments		61	0	61
Financing costs, net	60	64	120	125
Total operating expenses	454	558	874	1,029
NET INCOME (LOSS) BEFORE INCOME TAXES	(144)	(387)	91	(722)
Provision (benefit) for income taxes	(716)	(143)	(694)	(106)
NET INCOME (LOSS) INCLUDING NONCONTROLLING INTEREST	572	(244)	785	(616)
Net income attributable to noncontrolling interest	0	0	0	0
NET INCOME (LOSS) ATTRIBUTABLE TO COMMON STOCK	572	(244)	785	(616)
Apache Finance Canada [Member]
REVENUES AND OTHER:
Oil and Gas Production Revenues	0	0	0	0
Equity in net income (loss) of affiliates	(26)	6	(27)	(20)
Other	8	9	16	21
Gain (loss) on divestiture	0	0	0	0
Total revenues and other	(18)	15	(11)	1
OPERATING EXPENSES:
Lease operating expenses	0	0	0	0
Gathering and transportation	0	0	0	0
Taxes other than income	0	0	0	0
Exploration	0	0	0	0
General and administrative	0	0	0	0
Transaction, reorganization, and separation	0	0	0	0
Depreciation, depletion, and amortization	0	0	0	0
Asset retirement obligation accretion	0	0	0	0
Impairments		0	0	0
Financing costs, net	6	7	12	17
Total operating expenses	6	7	12	17
NET INCOME (LOSS) BEFORE INCOME TAXES	(24)	8	(23)	(16)
Provision (benefit) for income taxes	2	2	4	4
NET INCOME (LOSS) INCLUDING NONCONTROLLING INTEREST	(26)	6	(27)	(20)
Net income attributable to noncontrolling interest	0	0	0	0
NET INCOME (LOSS) ATTRIBUTABLE TO COMMON STOCK	(26)	6	(27)	(20)
All Other Subsidiaries of Apache Corporation [Member]
REVENUES AND OTHER:
Oil and Gas Production Revenues	1,098	1,116	2,326	1,986
Equity in net income (loss) of affiliates	0	0	0	0
Other	(11)	(8)	(2)	(51)
Gain (loss) on divestiture	(55)	18	145	18
Total revenues and other	1,032	1,126	2,469	1,953
OPERATING EXPENSES:
Lease operating expenses	293	293	548	593
Gathering and transportation	41	42	91	85
Taxes other than income	5	43	24	33
Exploration	54	15	118	60
General and administrative	15	17	28	33
Transaction, reorganization, and separation	0	0	0	0
Depreciation, depletion, and amortization	442	510	883	1,032
Asset retirement obligation accretion	32	33	62	67
Impairments		112	8	112
Financing costs, net	33	33	67	67
Total operating expenses	915	1,098	1,829	2,082
NET INCOME (LOSS) BEFORE INCOME TAXES	117	28	640	(129)
Provision (benefit) for income taxes	110	60	357	10
NET INCOME (LOSS) INCLUDING NONCONTROLLING INTEREST	7	(32)	283	(139)
Net income attributable to noncontrolling interest	41	44	95	45
NET INCOME (LOSS) ATTRIBUTABLE TO COMMON STOCK	$ (34)	$ (76)	$ 188	$ (184)

Supplemental Guarantor Inform49

Supplemental Guarantor Information - Cash Flows (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Condensed Financial Statements, Captions [Line Items]
CASH PROVIDED BY (USED IN) OPERATING ACTIVITIES			$ 1,206	$ 983
CASH FLOWS FROM INVESTING ACTIVITIES:
Additions to oil and gas property			(883)	(925)
Leasehold and property acquisitions	$ (18)	$ (99)	(67)	(118)
Additions to gas gathering, transmission, and processing facilities			(274)	0
Proceeds from sale of Midale and House Mountain			228	0
Proceeds from sale of oil and gas properties			483	48
Investment in subsidiaries, net			0	0
Other			(16)	77
NET CASH USED IN INVESTING ACTIVITIES			(529)	(966)
CASH FLOWS FROM FINANCING ACTIVITIES:
Intercompany borrowings			0	0
Payments on fixed-rate debt			(70)	0
Distributions to noncontrolling interest			(170)	(93)
Common stock activity, net			0
Dividends paid			(190)	(189)
Other			43	(1)
NET CASH USED IN FINANCING ACTIVITIES			(387)	(283)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS			290	(266)
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR			1,377	1,467
CASH AND CASH EQUIVALENTS AT END OF PERIOD	1,667	1,201	1,667	1,201
Reclassifications & Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
CASH PROVIDED BY (USED IN) OPERATING ACTIVITIES			0	0
CASH FLOWS FROM INVESTING ACTIVITIES:
Additions to oil and gas property			0	0
Leasehold and property acquisitions			0	0
Additions to gas gathering, transmission, and processing facilities			0
Proceeds from sale of Midale and House Mountain			0
Proceeds from sale of oil and gas properties			0
Investment in subsidiaries, net			(668)	39
Other			0	0
NET CASH USED IN INVESTING ACTIVITIES			(668)	39
CASH FLOWS FROM FINANCING ACTIVITIES:
Intercompany borrowings			668	(39)
Payments on fixed-rate debt			0
Distributions to noncontrolling interest			0	0
Common stock activity, net			0
Dividends paid			0	0
Other			0	0
NET CASH USED IN FINANCING ACTIVITIES			668	(39)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS			0	0
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR			0	0
CASH AND CASH EQUIVALENTS AT END OF PERIOD	0	0	0	0
Apache Corporation [Member]
Condensed Financial Statements, Captions [Line Items]
CASH PROVIDED BY (USED IN) OPERATING ACTIVITIES			(280)	110
CASH FLOWS FROM INVESTING ACTIVITIES:
Additions to oil and gas property			(235)	(53)
Leasehold and property acquisitions			(58)	(53)
Additions to gas gathering, transmission, and processing facilities			0
Proceeds from sale of Midale and House Mountain			0
Proceeds from sale of oil and gas properties			0
Investment in subsidiaries, net			668	(39)
Other			(9)	(3)
NET CASH USED IN INVESTING ACTIVITIES			366	(148)
CASH FLOWS FROM FINANCING ACTIVITIES:
Intercompany borrowings			0	0
Payments on fixed-rate debt			(70)
Distributions to noncontrolling interest			0	0
Common stock activity, net			0
Dividends paid			(190)	(189)
Other			0	1
NET CASH USED IN FINANCING ACTIVITIES			(260)	(188)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS			(174)	(226)
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR			344	378
CASH AND CASH EQUIVALENTS AT END OF PERIOD	170	152	170	152
Apache Finance Canada [Member]
Condensed Financial Statements, Captions [Line Items]
CASH PROVIDED BY (USED IN) OPERATING ACTIVITIES			(13)	0
CASH FLOWS FROM INVESTING ACTIVITIES:
Additions to oil and gas property			0	0
Leasehold and property acquisitions			0	0
Additions to gas gathering, transmission, and processing facilities			0
Proceeds from sale of Midale and House Mountain			0
Proceeds from sale of oil and gas properties			0
Investment in subsidiaries, net			0	0
Other			0	0
NET CASH USED IN INVESTING ACTIVITIES			0	0
CASH FLOWS FROM FINANCING ACTIVITIES:
Intercompany borrowings			259	1
Payments on fixed-rate debt			0
Distributions to noncontrolling interest			0	0
Dividends paid			0	0
Other			0	(1)
NET CASH USED IN FINANCING ACTIVITIES			259	0
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS			246	0
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR			0	0
CASH AND CASH EQUIVALENTS AT END OF PERIOD	246	0	246	0
All Other Subsidiaries of Apache Corporation [Member]
Condensed Financial Statements, Captions [Line Items]
CASH PROVIDED BY (USED IN) OPERATING ACTIVITIES			1,499	873
CASH FLOWS FROM INVESTING ACTIVITIES:
Additions to oil and gas property			(648)	(872)
Leasehold and property acquisitions			(9)	(65)
Additions to gas gathering, transmission, and processing facilities			(274)
Proceeds from sale of Midale and House Mountain			228
Proceeds from sale of oil and gas properties			483
Investment in subsidiaries, net			0	0
Other			(7)	80
NET CASH USED IN INVESTING ACTIVITIES			(227)	(857)
CASH FLOWS FROM FINANCING ACTIVITIES:
Intercompany borrowings			(927)	38
Payments on fixed-rate debt			0
Distributions to noncontrolling interest			(170)	(93)
Common stock activity, net			0
Dividends paid			0	0
Other			43	(1)
NET CASH USED IN FINANCING ACTIVITIES			(1,054)	(56)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS			218	(40)
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR			1,033	1,089
CASH AND CASH EQUIVALENTS AT END OF PERIOD	$ 1,251	$ 1,049	1,251	$ 1,049
All Other Subsidiaries [Member]
CASH FLOWS FROM FINANCING ACTIVITIES:
Common stock activity, net			$ 0

Supplemental Guarantor Inform50

Supplemental Guarantor Information - Balance Sheets (Detail) - USD ($) $ in Millions	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016	Dec. 31, 2015
CURRENT ASSETS:
Cash and cash equivalents	$ 1,667	$ 1,377	$ 1,201	$ 1,467
Receivables, net of allowance	1,015	1,128
Inventories	416	476
Drilling advances	99	81
Assets held for sale	1,231	0
Prepaid assets and other	219	179
Intercompany receivable	0	0
Total current assets	4,647	3,241
PROPERTY AND EQUIPMENT, NET	17,551	18,867
OTHER ASSETS:
Intercompany receivable	0	0
Equity in affiliates	0	0
Deferred charges and other	404	411
Total assets	22,602	22,519	24,346
CURRENT LIABILITIES:
Accounts payable	533	585
Liabilities held for sale	939	0
Other current liabilities	1,401	1,258
Intercompany payable	0	0
Total current liabilities	2,873	1,843
LONG-TERM DEBT	8,329	8,544
DEFERRED CREDITS AND OTHER NONCURRENT LIABILITIES:
Intercompany payable	0	0
Income taxes	1,058	1,710
Asset retirement obligation	1,811	2,432
Other	266	311
Total deferred credits and other noncurrent liabilities	3,135	4,453
COMMITMENTS AND CONTINGENCIES (Note 9)
APACHE SHAREHOLDERS’ EQUITY	6,899	6,238
Noncontrolling interest	1,366	1,441
TOTAL EQUITY	8,265	7,679	8,696	9,490
TOTAL LIABILITIES AND EQUITY	22,602	22,519
Reclassifications & Eliminations [Member]
CURRENT ASSETS:
Cash and cash equivalents	0	0	0	0
Receivables, net of allowance	0	0
Inventories	0	0
Drilling advances	0	0
Assets held for sale	0
Prepaid assets and other	0	0
Intercompany receivable	(5,453)	(5,038)
Total current assets	(5,453)	(5,038)
PROPERTY AND EQUIPMENT, NET	0	0
OTHER ASSETS:
Intercompany receivable	(12,876)	(12,152)
Equity in affiliates	(15,144)	(14,983)
Deferred charges and other	(1,000)	(1,000)
Total assets	(34,473)	(33,173)
CURRENT LIABILITIES:
Accounts payable	0	0
Liabilities held for sale	0
Other current liabilities	0	0
Intercompany payable	(5,453)	(5,038)
Total current liabilities	(5,453)	(5,038)
LONG-TERM DEBT	0	0
DEFERRED CREDITS AND OTHER NONCURRENT LIABILITIES:
Intercompany payable	(12,876)	(12,152)
Income taxes	0	0
Asset retirement obligation	0	0
Other	(1,000)	(1,000)
Total deferred credits and other noncurrent liabilities	(13,876)	(13,152)
COMMITMENTS AND CONTINGENCIES (Note 9)
APACHE SHAREHOLDERS’ EQUITY	(15,144)	(14,983)
Noncontrolling interest	0	0
TOTAL EQUITY	(15,144)	(14,983)
TOTAL LIABILITIES AND EQUITY	(34,473)	(33,173)
Apache Corporation [Member]
CURRENT ASSETS:
Cash and cash equivalents	170	344	152	378
Receivables, net of allowance	300	358
Inventories	24	29
Drilling advances	5	4
Assets held for sale	0
Prepaid assets and other	178	134
Intercompany receivable	5,453	5,038
Total current assets	6,130	5,907
PROPERTY AND EQUIPMENT, NET	7,232	7,014
OTHER ASSETS:
Intercompany receivable	0	0
Equity in affiliates	15,705	15,517
Deferred charges and other	105	97
Total assets	29,172	28,535
CURRENT LIABILITIES:
Accounts payable	371	371
Liabilities held for sale	0
Other current liabilities	699	653
Intercompany payable	0	0
Total current liabilities	1,070	1,024
LONG-TERM DEBT	8,032	8,247
DEFERRED CREDITS AND OTHER NONCURRENT LIABILITIES:
Intercompany payable	12,876	12,152
Income taxes	(968)	(271)
Asset retirement obligation	355	257
Other	908	888
Total deferred credits and other noncurrent liabilities	13,171	13,026
COMMITMENTS AND CONTINGENCIES (Note 9)
APACHE SHAREHOLDERS’ EQUITY	6,899	6,238
Noncontrolling interest	0	0
TOTAL EQUITY	6,899	6,238
TOTAL LIABILITIES AND EQUITY	29,172	28,535
Apache Finance Canada [Member]
CURRENT ASSETS:
Cash and cash equivalents	246	0	0	0
Receivables, net of allowance	0	0
Inventories	0	0
Drilling advances	0	0
Assets held for sale	0
Prepaid assets and other	0	0
Intercompany receivable	0	0
Total current assets	246	0
PROPERTY AND EQUIPMENT, NET	0	0
OTHER ASSETS:
Intercompany receivable	0	0
Equity in affiliates	(1,252)	(1,240)
Deferred charges and other	1,000	1,000
Total assets	(6)	(240)
CURRENT LIABILITIES:
Accounts payable	0	(12)
Liabilities held for sale	0
Other current liabilities	4	3
Intercompany payable	247	0
Total current liabilities	251	(9)
LONG-TERM DEBT	297	297
DEFERRED CREDITS AND OTHER NONCURRENT LIABILITIES:
Intercompany payable	0	0
Income taxes	5	5
Asset retirement obligation	0	0
Other	2	1
Total deferred credits and other noncurrent liabilities	7	6
COMMITMENTS AND CONTINGENCIES (Note 9)
APACHE SHAREHOLDERS’ EQUITY	(561)	(534)
Noncontrolling interest	0	0
TOTAL EQUITY	(561)	(534)
TOTAL LIABILITIES AND EQUITY	(6)	(240)
All Other Subsidiaries of Apache Corporation [Member]
CURRENT ASSETS:
Cash and cash equivalents	1,251	1,033	$ 1,049	$ 1,089
Receivables, net of allowance	715	770
Inventories	392	447
Drilling advances	94	77
Assets held for sale	1,231
Prepaid assets and other	41	45
Intercompany receivable	0	0
Total current assets	3,724	2,372
PROPERTY AND EQUIPMENT, NET	10,319	11,853
OTHER ASSETS:
Intercompany receivable	12,876	12,152
Equity in affiliates	691	706
Deferred charges and other	299	314
Total assets	27,909	27,397
CURRENT LIABILITIES:
Accounts payable	162	226
Liabilities held for sale	939
Other current liabilities	698	602
Intercompany payable	5,206	5,038
Total current liabilities	7,005	5,866
LONG-TERM DEBT	0	0
DEFERRED CREDITS AND OTHER NONCURRENT LIABILITIES:
Intercompany payable	0	0
Income taxes	2,021	1,976
Asset retirement obligation	1,456	2,175
Other	356	422
Total deferred credits and other noncurrent liabilities	3,833	4,573
COMMITMENTS AND CONTINGENCIES (Note 9)
APACHE SHAREHOLDERS’ EQUITY	15,705	15,517
Noncontrolling interest	1,366	1,441
TOTAL EQUITY	17,071	16,958
TOTAL LIABILITIES AND EQUITY	$ 27,909	$ 27,397