Supplemental Guarantor Information - Supplemental Condensed Consolidating Statement of Operations and Comprehensive Income (Detail) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
REVENUES AND OTHER:
Oil and gas production revenues									$ 6,383,000,000	$ 12,691,000,000	$ 14,771,000,000
Other									(17,000,000)	110,000,000	(333,000,000)
Total revenues and other	$ 1,263,000,000	$ 1,496,000,000	$ 1,977,000,000	$ 1,630,000,000	$ 2,683,000,000	$ 3,441,000,000	$ 3,289,000,000	$ 3,388,000,000	6,366,000,000	12,801,000,000	14,438,000,000
OPERATING EXPENSES:
Depreciation, depletion, and amortization									29,372,000,000	9,720,000,000	5,866,000,000
Asset retirement obligation accretion									145,000,000	154,000,000	211,000,000
Lease operating expenses									1,854,000,000	2,238,000,000	2,650,000,000
Gathering and transportation									211,000,000	273,000,000	288,000,000
Taxes other than income									282,000,000	577,000,000	772,000,000
Impairments					604,000,000				1,920,000,000	1,919,000,000	0
General and administrative									377,000,000	451,000,000	481,000,000
Transaction, reorganization, and separation									132,000,000	67,000,000	33,000,000
Acquisition, divestiture, and separation costs											33,000,000
Financing costs, net									299,000,000	211,000,000	229,000,000
Total operating expenses									34,592,000,000	15,610,000,000	10,530,000,000
NET INCOME (LOSS) FROM CONTINUING OPERATIONS BEFORE INCOME TAXES									(28,226,000,000)	(2,809,000,000)	3,908,000,000
Provision (benefit) for income taxes									(5,469,000,000)	663,000,000	1,928,000,000
NET INCOME (LOSS) FROM CONTINUING OPERATIONS INCLUDING NONCONTROLLING INTEREST	(7,870,000,000)	(5,551,000,000)	(4,832,000,000)	(4,504,000,000)	(3,694,000,000)	(1,085,000,000)	557,000,000	750,000,000	(22,757,000,000)	(3,472,000,000)	1,980,000,000
Net income (loss) from discontinued operations, net of tax	188,000,000	(95,000,000)	(732,000,000)	(132,000,000)	(1,072,000,000)	(156,000,000)	56,000,000	(416,000,000)	(771,000,000)	(1,588,000,000)	308,000,000
NET INCOME (LOSS) INCLUDING NONCONTROLLING INTEREST	(7,682,000,000)	(5,646,000,000)	(5,564,000,000)	(4,636,000,000)	(4,766,000,000)	(1,241,000,000)	613,000,000	334,000,000	(23,528,000,000)	(5,060,000,000)	2,288,000,000
Preferred stock dividends											44,000,000
Net income attributable to noncontrolling interest									(409,000,000)	343,000,000	56,000,000
Net income (loss) attributable to common shareholders	$ (7,213,000,000)	$ (5,655,000,000)	$ (5,600,000,000)	$ (4,651,000,000)	$ (4,814,000,000)	$ (1,330,000,000)	$ 505,000,000	$ 236,000,000	(23,119,000,000)	(5,403,000,000)	2,188,000,000
COMPREHENSIVE INCOME (LOSS) ATTRIBUTABLE TO COMMON STOCK									(23,119,000,000)	(5,404,000,000)	2,204,000,000
Reclassifications & Eliminations [Member]
REVENUES AND OTHER:
Equity in net income (loss) of affiliates									9,586,000,000	111,000,000	(2,366,000,000)
Other									19,000,000	5,000,000	(4,000,000)
Total revenues and other									9,605,000,000	116,000,000	(2,370,000,000)
OPERATING EXPENSES:
General and administrative									19,000,000	5,000,000	(4,000,000)
Total operating expenses									19,000,000	5,000,000	(4,000,000)
NET INCOME (LOSS) FROM CONTINUING OPERATIONS BEFORE INCOME TAXES									9,586,000,000	111,000,000	(2,366,000,000)
NET INCOME (LOSS) FROM CONTINUING OPERATIONS INCLUDING NONCONTROLLING INTEREST									9,586,000,000	111,000,000	(2,366,000,000)
NET INCOME (LOSS) INCLUDING NONCONTROLLING INTEREST									9,586,000,000	111,000,000	(2,366,000,000)
Net income (loss) attributable to common shareholders									9,586,000,000	111,000,000	(2,366,000,000)
COMPREHENSIVE INCOME (LOSS) ATTRIBUTABLE TO COMMON STOCK									9,586,000,000	111,000,000	(2,366,000,000)
Apache Corporation [Member]
REVENUES AND OTHER:
Oil and gas production revenues									1,446,000,000	3,399,000,000	4,585,000,000
Equity in net income (loss) of affiliates									(7,685,000,000)	25,000,000	2,313,000,000
Other									(18,000,000)	195,000,000	(399,000,000)
Total revenues and other									(6,257,000,000)	3,619,000,000	6,499,000,000
OPERATING EXPENSES:
Depreciation, depletion, and amortization									19,496,000,000	5,845,000,000	2,250,000,000
Asset retirement obligation accretion									15,000,000	31,000,000	67,000,000
Lease operating expenses									399,000,000	509,000,000	939,000,000
Gathering and transportation									35,000,000	58,000,000	61,000,000
Taxes other than income									103,000,000	206,000,000	190,000,000
Impairments									112,000,000	175,000,000
General and administrative									300,000,000	377,000,000	408,000,000
Transaction, reorganization, and separation									132,000,000	67,000,000
Acquisition, divestiture, and separation costs											33,000,000
Financing costs, net									288,000,000	158,000,000	97,000,000
Total operating expenses									20,880,000,000	7,426,000,000	4,045,000,000
NET INCOME (LOSS) FROM CONTINUING OPERATIONS BEFORE INCOME TAXES									(27,137,000,000)	(3,807,000,000)	2,454,000,000
Provision (benefit) for income taxes									(4,188,000,000)	1,472,000,000	222,000,000
NET INCOME (LOSS) FROM CONTINUING OPERATIONS INCLUDING NONCONTROLLING INTEREST									(22,949,000,000)	(5,279,000,000)	2,232,000,000
Net income (loss) from discontinued operations, net of tax									(172,000,000)	(127,000,000)
NET INCOME (LOSS) INCLUDING NONCONTROLLING INTEREST									(23,121,000,000)	(5,406,000,000)	2,232,000,000
Preferred stock dividends											44,000,000
Net income (loss) attributable to common shareholders									(23,121,000,000)	(5,406,000,000)	2,188,000,000
COMPREHENSIVE INCOME (LOSS) ATTRIBUTABLE TO COMMON STOCK									(23,121,000,000)	(5,407,000,000)	2,204,000,000
Apache Finance Canada [Member]
REVENUES AND OTHER:
Equity in net income (loss) of affiliates									(1,958,000,000)	(209,000,000)	17,000,000
Other									54,000,000	55,000,000	61,000,000
Total revenues and other									(1,904,000,000)	(154,000,000)	78,000,000
OPERATING EXPENSES:
Financing costs, net									(14,000,000)	(24,000,000)	5,000,000
Total operating expenses									(14,000,000)	(24,000,000)	5,000,000
NET INCOME (LOSS) FROM CONTINUING OPERATIONS BEFORE INCOME TAXES									(1,890,000,000)	(130,000,000)	73,000,000
Provision (benefit) for income taxes									11,000,000	6,000,000	20,000,000
NET INCOME (LOSS) FROM CONTINUING OPERATIONS INCLUDING NONCONTROLLING INTEREST									(1,901,000,000)	(136,000,000)	53,000,000
NET INCOME (LOSS) INCLUDING NONCONTROLLING INTEREST									(1,901,000,000)	(136,000,000)	53,000,000
Net income (loss) attributable to common shareholders									(1,901,000,000)	(136,000,000)	53,000,000
COMPREHENSIVE INCOME (LOSS) ATTRIBUTABLE TO COMMON STOCK									(1,901,000,000)	(136,000,000)	53,000,000
All Other Subsidiaries of Apache Corporation [Member]
REVENUES AND OTHER:
Oil and gas production revenues									4,937,000,000	9,292,000,000	10,186,000,000
Equity in net income (loss) of affiliates									57,000,000	73,000,000	36,000,000
Other									(72,000,000)	(145,000,000)	9,000,000
Total revenues and other									4,922,000,000	9,220,000,000	10,231,000,000
OPERATING EXPENSES:
Depreciation, depletion, and amortization									9,876,000,000	3,875,000,000	3,616,000,000
Asset retirement obligation accretion									130,000,000	123,000,000	144,000,000
Lease operating expenses									1,455,000,000	1,729,000,000	1,711,000,000
Gathering and transportation									176,000,000	215,000,000	227,000,000
Taxes other than income									179,000,000	371,000,000	582,000,000
Impairments									1,808,000,000	1,744,000,000
General and administrative									58,000,000	69,000,000	77,000,000
Financing costs, net									25,000,000	77,000,000	127,000,000
Total operating expenses									13,707,000,000	8,203,000,000	6,484,000,000
NET INCOME (LOSS) FROM CONTINUING OPERATIONS BEFORE INCOME TAXES									(8,785,000,000)	1,017,000,000	3,747,000,000
Provision (benefit) for income taxes									(1,292,000,000)	(815,000,000)	1,686,000,000
NET INCOME (LOSS) FROM CONTINUING OPERATIONS INCLUDING NONCONTROLLING INTEREST									(7,493,000,000)	1,832,000,000	2,061,000,000
Net income (loss) from discontinued operations, net of tax									(599,000,000)	(1,461,000,000)	308,000,000
NET INCOME (LOSS) INCLUDING NONCONTROLLING INTEREST									(8,092,000,000)	371,000,000	2,369,000,000
Net income attributable to noncontrolling interest									(409,000,000)	343,000,000	56,000,000
Net income (loss) attributable to common shareholders									(7,683,000,000)	28,000,000	2,313,000,000
COMPREHENSIVE INCOME (LOSS) ATTRIBUTABLE TO COMMON STOCK									$ (7,683,000,000)	$ 28,000,000	$ 2,313,000,000