Supplemental Guarantor Information - Supplemental Condensed Consolidating Statement of Cash Flows (Detail) - USD ($) $ in Millions			1 Months Ended		12 Months Ended
		Jun. 30, 2014	Dec. 31, 2014		Dec. 31, 2016		Dec. 31, 2015		Dec. 31, 2014
Condensed Financial Statements, Captions [Line Items]
CASH PROVIDED BY CONTINUING OPERATING ACTIVITIES					$ 2,453		$ 2,554	[1]	$ 7,013	[1]
CASH PROVIDED BY (USED IN) DISCONTINUED OPERATIONS					(23)		113	[1]	944	[1]
CASH PROVIDED BY OPERATING ACTIVITIES					2,430		2,667	[1]	7,957	[1]
CASH FLOWS FROM INVESTING ACTIVITIES:
Additions to oil and gas property					(1,610)		(4,208)		(8,608)
Additions to gas gathering, transmission, and processing facilities					(158)		(233)		(881)
Proceeds from sale of Kitimat LNG					0		854	[1]	0	[1]
Proceeds from sale of Yara Pilbara					0		391	[1]	0	[1]
Leasehold and property acquisitions					(181)		(367)	[1]	(1,475)	[1]
Proceeds from sale of oil and gas assets					134		268	[1]	470	[1]
Other					155		6	[1]	(299)	[1]
NET CASH USED IN CONTINUING INVESTING ACTIVITIES					(1,660)		(3,289)	[1]	(8,171)	[1]
NET CASH PROVIDED BY DISCONTINUED OPERATIONS					0		4,372	[1]	(219)	[1]
NET CASH USED IN INVESTING ACTIVITIES					(1,660)		1,083	[1]	(8,390)	[1]
CASH FLOWS FROM FINANCING ACTIVITIES:
Commercial paper, credit facility, and bank notes, net					0		(1,570)	[1]	1,568	[1]
Payments on fixed rate debt					(181)		(939)	[1]	0	[1]
Dividends paid					(379)		(377)	[1]	(365)	[1]
Distributions to noncontrolling interest					(293)		(129)	[1]	(140)	[1]
Shares repurchased					0		0	[1]	(1,864)	[1]
Other					(7)		53	[1]	49	[1]
NET CASH USED IN CONTINUING FINANCING ACTIVITIES					(860)		(2,962)	[1]	(752)	[1]
NET CASH USED IN DISCONTINUED OPERATIONS					0		0	[1]	(42)	[1]
NET CASH USED IN FINANCING ACTIVITIES					(860)		(2,962)	[1]	(794)	[1]
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS					(90)		788	[1]	(1,227)	[1]
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR	[1]				1,467	[2]	679		1,906
CASH AND CASH EQUIVALENTS AT END OF PERIOD			$ 679	[1]	1,377		1,467	[1],[2]	679	[1]
Reclassifications & Eliminations [Member]
CASH FLOWS FROM INVESTING ACTIVITIES:
Investment in subsidiaries, net					(914)		(6,363)		(1,132)
NET CASH USED IN CONTINUING INVESTING ACTIVITIES							(6,363)		(1,132)
NET CASH USED IN INVESTING ACTIVITIES					(914)		(6,363)		(1,132)
CASH FLOWS FROM FINANCING ACTIVITIES:
Intercompany borrowings					914		6,363		1,144
Other							0		(12)
NET CASH USED IN CONTINUING FINANCING ACTIVITIES							6,363		1,132
NET CASH USED IN FINANCING ACTIVITIES					914		6,363		1,132
Apache Corporation [Member]
Condensed Financial Statements, Captions [Line Items]
CASH PROVIDED BY CONTINUING OPERATING ACTIVITIES					625		98		3,104
CASH PROVIDED BY OPERATING ACTIVITIES					625		98		3,104
CASH FLOWS FROM INVESTING ACTIVITIES:
Additions to oil and gas property					(813)		(1,500)		(4,364)
Additions to gas gathering, transmission, and processing facilities					(111)		(156)		(9)
Leasehold and property acquisitions					(108)		(313)		(1,475)
Proceeds from sale of oil and gas assets					88		163		15
Investment in subsidiaries, net					914		6,363		1,132
Other					(77)		(34)		(186)
NET CASH USED IN CONTINUING INVESTING ACTIVITIES							4,523		(2,265)
NET CASH USED IN INVESTING ACTIVITIES					(107)		4,523		(2,265)
CASH FLOWS FROM FINANCING ACTIVITIES:
Commercial paper, credit facility, and bank notes, net							(1,570)		1,570
Intercompany borrowings					0		(1,621)
Payments on fixed rate debt					(181)		(939)
Dividends paid					(379)		(377)		(365)
Shares repurchased									(1,864)
Other					8		(3)		(68)
NET CASH USED IN CONTINUING FINANCING ACTIVITIES							(4,510)		(727)
NET CASH USED IN FINANCING ACTIVITIES					(552)		(4,510)		(727)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS					(34)		111		112
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR					378		267		155
CASH AND CASH EQUIVALENTS AT END OF PERIOD			267		344		378		267
Apache Finance Canada [Member]
Condensed Financial Statements, Captions [Line Items]
CASH PROVIDED BY CONTINUING OPERATING ACTIVITIES					51		18		17
CASH PROVIDED BY OPERATING ACTIVITIES					51		18		17
CASH FLOWS FROM FINANCING ACTIVITIES:
Intercompany borrowings					(23)		(18)		8
Common stock activity, net					(28)
Other							0		(28)
NET CASH USED IN CONTINUING FINANCING ACTIVITIES							(18)		(20)
NET CASH USED IN FINANCING ACTIVITIES					(51)		(18)		(20)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS					0		0		(3)
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR							0		3
CASH AND CASH EQUIVALENTS AT END OF PERIOD			0		0				0
All Other Subsidiaries of Apache Corporation [Member]
Condensed Financial Statements, Captions [Line Items]
CASH PROVIDED BY CONTINUING OPERATING ACTIVITIES					1,777		2,438		3,892
CASH PROVIDED BY (USED IN) DISCONTINUED OPERATIONS					(23)		113		944
CASH PROVIDED BY OPERATING ACTIVITIES					1,754		2,551		4,836
CASH FLOWS FROM INVESTING ACTIVITIES:
Additions to oil and gas property					(797)		(2,708)		(4,244)
Additions to gas gathering, transmission, and processing facilities					(47)		(77)		(872)
Proceeds from sale of Kitimat LNG							854
Proceeds from sale of Yara Pilbara							391
Leasehold and property acquisitions					(73)		(54)		0
Proceeds from sale of oil and gas assets					46		105		455
Other					232		40		(113)
NET CASH USED IN CONTINUING INVESTING ACTIVITIES							(1,449)		(4,774)
NET CASH PROVIDED BY DISCONTINUED OPERATIONS							4,372		(219)
NET CASH USED IN INVESTING ACTIVITIES					(639)		2,923		(4,993)
CASH FLOWS FROM FINANCING ACTIVITIES:
Commercial paper, credit facility, and bank notes, net							0		(2)
Intercompany borrowings					(891)		(4,724)		(1,152)
Distributions to noncontrolling interest					(293)		(129)		(140)
Common stock activity, net					28
Other					(15)		56		157
NET CASH USED IN CONTINUING FINANCING ACTIVITIES							(4,797)		(1,137)
NET CASH USED IN DISCONTINUED OPERATIONS									(42)
NET CASH USED IN FINANCING ACTIVITIES					(1,171)		(4,797)		(1,179)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS					(56)		677		(1,336)
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR					1,089		412		1,748
CASH AND CASH EQUIVALENTS AT END OF PERIOD			412		1,033		1,089		412
Anadarko Basin and Southern Louisiana [Member]
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from sale of productive assets					0		0	[1]	1,262	[1]
Proceeds from sale of oil and gas assets			$ 1,300
Anadarko Basin and Southern Louisiana [Member] | Apache Corporation [Member]
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from sale of productive assets									1,262
Deepwater Gulf of Mexico [Member]
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from sale of productive assets					$ 0		$ 0	[1]	1,360	[1]
Proceeds from sale of oil and gas assets		$ 1,400
Deepwater Gulf of Mexico [Member] | Apache Corporation [Member]
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from sale of productive assets									$ 1,360

[1] Financial information for 2015 and 2014 has been recast to reflect retrospective application of the successful efforts method of accounting. See Note 1.

[2] Financial information for 2015 has been recast to reflect retrospective application of the successful efforts method of accounting. See Note 1.