Supplemental Guarantor Information - Supplemental Condensed Consolidating Balance Sheet (Detail) - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015		Sep. 30, 2015		Dec. 31, 2014
CURRENT ASSETS:
Cash and cash equivalents	$ 1,230	$ 1,467	[1]	$ 1,655	[2]	$ 679	[2]
Receivables, net of allowance	1,064	1,253	[1]
Inventories	513	570	[1]
Drilling advances	209	172	[1]
Deferred tax asset	0
Prepaid assets and other	256	290	[1]
Intercompany receivable	0	0
Total current assets	3,272	3,752	[1]
PROPERTY AND EQUIPMENT, NET	19,462	20,838	[1]
OTHER ASSETS:
Intercompany receivable	0	0
Equity in affiliates	0	0
Deferred charges and other	415	910	[1]
Total assets	23,149	25,500	[1]	31,239
CURRENT LIABILITIES:
Accounts payable	557	618	[1]
Other current liabilities	1,071	1,223	[1]
Intercompany payable	0	0
Total current liabilities	1,628	1,841	[1]
LONG-TERM DEBT	8,721	8,716	[1]
DEFERRED CREDITS AND OTHER NONCURRENT LIABILITIES:
Intercompany payable	0	0
Income taxes	1,783	2,529	[1]
Asset retirement obligation	2,742	2,562	[1]
Other	326	362	[1]
Total deferred credits and other noncurrent liabilities	4,851	5,453	[1]
COMMITMENTS AND CONTINGENCIES (Note 9)
APACHE SHAREHOLDERS’ EQUITY	6,469	7,888	[1]
Noncontrolling interest	1,480	1,602	[1]
TOTAL EQUITY	7,949	9,490	[1]	13,983		20,541
TOTAL LIABILITIES AND EQUITY	23,149	25,500	[1]
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
Deferred tax asset	0
Prepaid assets and other	0	0
Intercompany receivable	(5,418)	(5,212)
Total current assets	(5,418)	(5,212)
PROPERTY AND EQUIPMENT, NET	0	0
OTHER ASSETS:
Intercompany receivable	(12,034)	(10,744)
Equity in affiliates	(14,829)	(15,731)
Deferred charges and other	(1,000)	(1,000)
Total assets	(33,281)	(32,687)
CURRENT LIABILITIES:
Accounts payable	0	0
Other current liabilities	0	0
Intercompany payable	(5,418)	(5,212)
Total current liabilities	(5,418)	(5,212)
LONG-TERM DEBT	0	0
DEFERRED CREDITS AND OTHER NONCURRENT LIABILITIES:
Intercompany payable	(12,034)	(10,744)
Income taxes	0	0
Asset retirement obligation	0	0
Other	(1,000)	(1,000)
Total deferred credits and other noncurrent liabilities	(13,034)	(11,744)
COMMITMENTS AND CONTINGENCIES (Note 9)
APACHE SHAREHOLDERS’ EQUITY	(14,829)	(15,731)
Noncontrolling interest	0	0
TOTAL EQUITY	(14,829)	(15,731)
TOTAL LIABILITIES AND EQUITY	(33,281)	(32,687)
Apache Corporation [Member]
CURRENT ASSETS:
Cash and cash equivalents	177	378		451		267
Receivables, net of allowance	311	314
Inventories	32	34
Drilling advances	5	16
Deferred tax asset	(28)
Prepaid assets and other	191	102
Intercompany receivable	5,418	5,212
Total current assets	6,106	6,056
PROPERTY AND EQUIPMENT, NET	7,069	6,546
OTHER ASSETS:
Intercompany receivable	0	0
Equity in affiliates	15,415	16,092
Deferred charges and other	95	96
Total assets	28,685	28,790
CURRENT LIABILITIES:
Accounts payable	338	409
Other current liabilities	468	539
Intercompany payable	0	0
Total current liabilities	806	948
LONG-TERM DEBT	8,424	8,418
DEFERRED CREDITS AND OTHER NONCURRENT LIABILITIES:
Intercompany payable	12,034	10,744
Income taxes	(230)	(412)
Asset retirement obligation	280	271
Other	902	933
Total deferred credits and other noncurrent liabilities	12,986	11,536
COMMITMENTS AND CONTINGENCIES (Note 9)
APACHE SHAREHOLDERS’ EQUITY	6,469	7,888
Noncontrolling interest	0	0
TOTAL EQUITY	6,469	7,888
TOTAL LIABILITIES AND EQUITY	28,685	28,790
Apache Finance Canada [Member]
CURRENT ASSETS:
Cash and cash equivalents	0	0		0		0
Receivables, net of allowance	0	0
Inventories	0	0
Drilling advances	0	0
Deferred tax asset	0
Prepaid assets and other	0	0
Intercompany receivable	0	0
Total current assets	0	0
PROPERTY AND EQUIPMENT, NET	0	0
OTHER ASSETS:
Intercompany receivable	0	0
Equity in affiliates	(1,289)	(807)
Deferred charges and other	1,000	1,001
Total assets	(289)	194
CURRENT LIABILITIES:
Accounts payable	(13)	0
Other current liabilities	8	3
Intercompany payable	0	0
Total current liabilities	(5)	3
LONG-TERM DEBT	297	298
DEFERRED CREDITS AND OTHER NONCURRENT LIABILITIES:
Intercompany payable	0	0
Income taxes	5	4
Asset retirement obligation	0	0
Other	0	250
Total deferred credits and other noncurrent liabilities	5	254
COMMITMENTS AND CONTINGENCIES (Note 9)
APACHE SHAREHOLDERS’ EQUITY	(586)	(361)
Noncontrolling interest	0	0
TOTAL EQUITY	(586)	(361)
TOTAL LIABILITIES AND EQUITY	(289)	194
All Other Subsidiaries of Apache Corporation [Member]
CURRENT ASSETS:
Cash and cash equivalents	1,053	1,089		$ 1,204		$ 412
Receivables, net of allowance	753	939
Inventories	481	536
Drilling advances	204	156
Deferred tax asset	28
Prepaid assets and other	65	188
Intercompany receivable	0	0
Total current assets	2,584	2,908
PROPERTY AND EQUIPMENT, NET	12,393	14,292
OTHER ASSETS:
Intercompany receivable	12,034	10,744
Equity in affiliates	703	446
Deferred charges and other	320	813
Total assets	28,034	29,203
CURRENT LIABILITIES:
Accounts payable	232	209
Other current liabilities	595	681
Intercompany payable	5,418	5,212
Total current liabilities	6,245	6,102
LONG-TERM DEBT	0	0
DEFERRED CREDITS AND OTHER NONCURRENT LIABILITIES:
Intercompany payable	0	0
Income taxes	2,008	2,937
Asset retirement obligation	2,462	2,291
Other	424	179
Total deferred credits and other noncurrent liabilities	4,894	5,407
COMMITMENTS AND CONTINGENCIES (Note 9)
APACHE SHAREHOLDERS’ EQUITY	15,415	16,092
Noncontrolling interest	1,480	1,602
TOTAL EQUITY	16,895	17,694
TOTAL LIABILITIES AND EQUITY	$ 28,034	$ 29,203

[1] Financial information for 2015 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.