Supplemental Guarantor Information - Supplemental Condensed Consolidating Balance Sheet (Detail) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
CURRENT ASSETS:
Cash and cash equivalents	$ 1,467	$ 769	$ 1,906	$ 160
Receivables, net of allowance	1,253	2,024
Inventories	570	708
Drilling advances	172	388
Assets held for sale		1,628
Deferred tax asset		769
Prepaid assets and other	290	129
Total current assets	3,752	6,415
PROPERTY AND EQUIPMENT, NET	14,119	48,076
OTHER ASSETS:
Deferred charges and other	971	1,461
Total assets	18,842	55,952	51,966
CURRENT LIABILITIES:
Accounts payable	618	1,210
Other current liabilities	1,223	2,454
Total current liabilities	1,841	3,664
LONG-TERM DEBT	8,777	11,245
DEFERRED CREDITS AND OTHER NONCURRENT LIABILITIES:
Income taxes	1,072	9,499
Asset retirement obligation, non current	2,562	3,048
Other	362	359
Total deferred credits and other noncurrent liabilities	$ 3,996	$ 12,906
COMMITMENTS AND CONTINGENCIES
APACHE SHAREHOLDERS' EQUITY	$ 2,566	$ 25,937
Noncontrolling interest	1,662	2,200
TOTAL EQUITY	4,228	28,137	35,393	31,331
Total liabilities and shareholders' equity	18,842	55,952
Reclassifications & Eliminations [Member]
CURRENT ASSETS:
Intercompany receivable	(5,212)	(4,939)
Total current assets	(5,212)	(4,939)
OTHER ASSETS:
Intercompany receivable	(10,744)	(608)
Equity in affiliates	(15,735)	(27,104)
Deferred charges and other	(1,000)	(1,000)
Total assets	(32,691)	(33,651)
CURRENT LIABILITIES:
Intercompany payable	(5,212)	(4,939)
Total current liabilities	(5,212)	(4,939)
DEFERRED CREDITS AND OTHER NONCURRENT LIABILITIES:
Intercompany payable	(10,744)	(608)
Other	(1,000)	(1,000)
Total deferred credits and other noncurrent liabilities	$ (11,744)	$ (1,608)
COMMITMENTS AND CONTINGENCIES
APACHE SHAREHOLDERS' EQUITY	$ (15,735)	$ (27,104)
TOTAL EQUITY	(15,735)	(27,104)
Total liabilities and shareholders' equity	(32,691)	(33,651)
Apache Corporation [Member]
CURRENT ASSETS:
Cash and cash equivalents	378	267	155
Receivables, net of allowance	314	837
Inventories	34	24
Drilling advances	16	34
Deferred tax asset		612
Prepaid assets and other	102	32
Intercompany receivable	5,212	4,939
Total current assets	6,056	6,745
PROPERTY AND EQUIPMENT, NET		13,940
OTHER ASSETS:
Equity in affiliates	16,443	25,791
Deferred charges and other	157	175
Total assets	22,656	46,651
CURRENT LIABILITIES:
Accounts payable	409	748
Other current liabilities	539	1,042
Total current liabilities	948	1,790
LONG-TERM DEBT	8,479	10,947
DEFERRED CREDITS AND OTHER NONCURRENT LIABILITIES:
Intercompany payable	10,744	608
Income taxes	(1,285)	5,076
Asset retirement obligation, non current	271	211
Other	933	2,082
Total deferred credits and other noncurrent liabilities	$ 10,663	$ 7,977
COMMITMENTS AND CONTINGENCIES
APACHE SHAREHOLDERS' EQUITY	$ 2,566	$ 25,937
TOTAL EQUITY	2,566	25,937
Total liabilities and shareholders' equity	22,656	46,651
Apache Finance Canada [Member]
CURRENT ASSETS:
Cash and cash equivalents	8		3
Drilling advances		1
Total current assets		1
OTHER ASSETS:
Equity in affiliates	(1,154)	869
Deferred charges and other	1,001	1,002
Total assets	153	1,872
CURRENT LIABILITIES:
Accounts payable		10
Other current liabilities	3	1
Total current liabilities	3	11
LONG-TERM DEBT	298	298
DEFERRED CREDITS AND OTHER NONCURRENT LIABILITIES:
Income taxes	4
Other	250	250
Total deferred credits and other noncurrent liabilities	$ 254	$ 250
COMMITMENTS AND CONTINGENCIES
APACHE SHAREHOLDERS' EQUITY	$ (708)	$ 1,313
TOTAL EQUITY	(708)	1,313
Total liabilities and shareholders' equity	(153)	1,872
All Other Subsidiaries of Apache Corporation [Member]
CURRENT ASSETS:
Cash and cash equivalents	1,081	502	$ 1,748	$ 160
Receivables, net of allowance	939	1,187
Inventories	536	684
Drilling advances	156	353
Assets held for sale		1,628
Deferred tax asset		157
Prepaid assets and other	188	97
Total current assets	2,908	4,608
PROPERTY AND EQUIPMENT, NET	14,119	34,136
OTHER ASSETS:
Intercompany receivable	10,744	608
Equity in affiliates	446	444
Deferred charges and other	813	1,284
Total assets	29,030	41,080
CURRENT LIABILITIES:
Accounts payable	209	452
Other current liabilities	681	1,411
Intercompany payable	5,212	4,939
Total current liabilities	6,102	6,802
DEFERRED CREDITS AND OTHER NONCURRENT LIABILITIES:
Income taxes	2,353	4,423
Asset retirement obligation, non current	2,291	2,837
Other	179	(973)
Total deferred credits and other noncurrent liabilities	$ 4,823	$ 6,287
COMMITMENTS AND CONTINGENCIES
APACHE SHAREHOLDERS' EQUITY	$ 16,443	$ 25,791
Noncontrolling interest	1,662	2,200
TOTAL EQUITY	18,105	27,991
Total liabilities and shareholders' equity	$ 29,030	$ 41,080