Supplemental Guarantor Information - Supplemental Condensed Consolidating Statement of Operations (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
REVENUES AND OTHER:
Oil and Gas Production Revenues	$ 1,060	$ 1,638
Equity in net income (loss) of affiliates	0	0
Other	(8)	(8)
Total revenues and other	1,052	1,630
OPERATING EXPENSES:
Depreciation, depletion, and amortization	1,082	8,302
Asset retirement obligation accretion	38	36
Lease operating expenses	378	481
Gathering and transportation	52	56
Taxes other than income	11	74
General and administrative	93	82
Transaction, reorganization, and separation	15	54
Financing costs, net	90	69
Total operating expenses	1,759	9,154
NET LOSS FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	(707)	(7,524)
Provision (benefit) for income taxes	(146)	(3,020)
NET LOSS FROM CONTINUING OPERATIONS INCLUDING NONCONTROLLING INTEREST	(561)	(4,504)
Net income (loss) from discontinued operations, net of tax	0	(132)
NET LOSS INCLUDING NONCONTROLLING INTEREST	(561)	(4,636)
Net income (loss) attributable to noncontrolling interest	(72)	15
NET LOSS ATTRIBUTABLE TO COMMON STOCK	(489)	(4,651)
Reclassifications & Eliminations [Member]
REVENUES AND OTHER:
Oil and Gas Production Revenues	0	0
Equity in net income (loss) of affiliates	461	1,738
Other	0	0
Total revenues and other	461	1,738
OPERATING EXPENSES:
Depreciation, depletion, and amortization	0	0
Asset retirement obligation accretion	0	0
Lease operating expenses	0	0
Gathering and transportation	0	0
Taxes other than income	0	0
General and administrative	0	0
Transaction, reorganization, and separation	0	0
Financing costs, net	0	0
Total operating expenses	0	0
NET LOSS FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	461	1,738
Provision (benefit) for income taxes	0	0
NET LOSS FROM CONTINUING OPERATIONS INCLUDING NONCONTROLLING INTEREST	461	1,738
Net income (loss) from discontinued operations, net of tax	0	0
NET LOSS INCLUDING NONCONTROLLING INTEREST	461	1,738
Net income (loss) attributable to noncontrolling interest	0	0
NET LOSS ATTRIBUTABLE TO COMMON STOCK	461	1,738
Apache Corporation [Member]
REVENUES AND OTHER:
Oil and Gas Production Revenues	217	365
Equity in net income (loss) of affiliates	(414)	(1,085)
Other	151	(40)
Total revenues and other	(46)	(760)
OPERATING EXPENSES:
Depreciation, depletion, and amortization	428	5,499
Asset retirement obligation accretion	4	4
Lease operating expenses	78	124
Gathering and transportation	8	9
Taxes other than income	21	34
General and administrative	77	64
Transaction, reorganization, and separation	15	54
Financing costs, net	67	52
Total operating expenses	698	5,840
NET LOSS FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	(744)	(6,600)
Provision (benefit) for income taxes	(12)	(1,949)
NET LOSS FROM CONTINUING OPERATIONS INCLUDING NONCONTROLLING INTEREST	(732)	(4,651)
Net income (loss) from discontinued operations, net of tax	0	0
NET LOSS INCLUDING NONCONTROLLING INTEREST	(732)	(4,651)
Net income (loss) attributable to noncontrolling interest	0	0
NET LOSS ATTRIBUTABLE TO COMMON STOCK	(732)	(4,651)
Apache Finance Canada [Member]
REVENUES AND OTHER:
Oil and Gas Production Revenues	0	0
Equity in net income (loss) of affiliates	(47)	(654)
Other	12	14
Total revenues and other	(35)	(640)
OPERATING EXPENSES:
Depreciation, depletion, and amortization	0	0
Asset retirement obligation accretion	0	0
Lease operating expenses	0	0
Gathering and transportation	0	0
Taxes other than income	0	0
General and administrative	0	0
Transaction, reorganization, and separation	0	0
Financing costs, net	10	10
Total operating expenses	10	10
NET LOSS FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	(45)	(650)
Provision (benefit) for income taxes	2	3
NET LOSS FROM CONTINUING OPERATIONS INCLUDING NONCONTROLLING INTEREST	(47)	(653)
Net income (loss) from discontinued operations, net of tax	0	0
NET LOSS INCLUDING NONCONTROLLING INTEREST	(47)	(653)
Net income (loss) attributable to noncontrolling interest	0	0
NET LOSS ATTRIBUTABLE TO COMMON STOCK	(47)	(653)
All Other Subsidiaries of Apache Corporation [Member]
REVENUES AND OTHER:
Oil and Gas Production Revenues	843	1,273
Equity in net income (loss) of affiliates	0	1
Other	(171)	18
Total revenues and other	672	1,292
OPERATING EXPENSES:
Depreciation, depletion, and amortization	654	2,803
Asset retirement obligation accretion	34	32
Lease operating expenses	300	357
Gathering and transportation	44	47
Taxes other than income	(10)	40
General and administrative	16	18
Transaction, reorganization, and separation	0	0
Financing costs, net	13	7
Total operating expenses	1,051	3,304
NET LOSS FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	(379)	(2,012)
Provision (benefit) for income taxes	(136)	(1,074)
NET LOSS FROM CONTINUING OPERATIONS INCLUDING NONCONTROLLING INTEREST	(243)	(938)
Net income (loss) from discontinued operations, net of tax	0	(132)
NET LOSS INCLUDING NONCONTROLLING INTEREST	(243)	(1,070)
Net income (loss) attributable to noncontrolling interest	(72)	15
NET LOSS ATTRIBUTABLE TO COMMON STOCK	$ (171)	$ (1,085)