Supplemental Guarantor Information - Supplemental Condensed Consolidating Balance Sheet (Detail) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013	Dec. 31, 2012
CURRENT ASSETS:
Cash and cash equivalents	$ 1,643	$ 1,906	$ 248	$ 160
Receivables, net of allowance	2,479	2,952
Inventories	727	891
Drilling advances	323	371
Derivative instruments		1
Prepaid assets and other	291	245
Total current assets	5,463	6,366
PROPERTY AND EQUIPMENT, NET	52,752	52,421
OTHER ASSETS:
Goodwill, net	1,369	1,369
Deferred charges and other	1,537	1,481
Total assets	61,121	61,637	60,063
CURRENT LIABILITIES:
Accounts payable	1,438	1,616
Current debt		53
Asset retirement obligation	182	121
Derivative instruments	224	299
Other current liabilities	2,512	2,611
Total current liabilities	4,356	4,700
LONG-TERM DEBT	9,673	9,672
DEFERRED CREDITS AND OTHER NONCURRENT LIABILITIES:
Income taxes	8,517	8,364
Asset retirement obligation	2,996	3,101
Other	402	407
Total deferred credits and other noncurrent liabilities	11,915	11,872
COMMITMENTS AND CONTINGENCIES
APACHE SHAREHOLDERS' EQUITY	33,082	33,396
Noncontrolling interest	2,095	1,997
TOTAL EQUITY	35,177	35,393	31,987	31,331
Total liabilities and shareholders' equity	61,121	61,637
Reclassifications & Eliminations [Member]
CURRENT ASSETS:
Intercompany receivable	(5,741)	(5,357)
Total current assets	(5,741)	(5,357)
OTHER ASSETS:
Intercompany receivable	(1,319)	(1,572)
Equity in affiliates	(26,621)	(26,347)
Deferred charges and other	(1,000)	(1,000)
Total assets	(34,681)	(34,276)
CURRENT LIABILITIES:
Intercompany payable	(5,741)	(5,357)
Total current liabilities	(5,741)	(5,357)
DEFERRED CREDITS AND OTHER NONCURRENT LIABILITIES:
Intercompany payable	(1,319)	(1,572)
Other	(1,000)	(1,000)
Total deferred credits and other noncurrent liabilities	(2,319)	(2,572)
COMMITMENTS AND CONTINGENCIES		(26,347)
APACHE SHAREHOLDERS' EQUITY	(26,621)
TOTAL EQUITY	(26,621)	(26,347)
Total liabilities and shareholders' equity	(34,681)	(34,276)
Apache Corporation [Member]
CURRENT ASSETS:
Cash and cash equivalents	2	155	5
Receivables, net of allowance	881	1,043
Inventories	32	48
Drilling advances	19	49
Derivative instruments		1
Prepaid assets and other	104	99
Intercompany receivable	5,741	5,357
Total current assets	6,779	6,752
PROPERTY AND EQUIPMENT, NET	16,777	16,092
OTHER ASSETS:
Intercompany receivable	253	1,572
Equity in affiliates	24,996	24,743
Goodwill, net	173	173
Deferred charges and other	174	166
Total assets	49,152	49,498
CURRENT LIABILITIES:
Accounts payable	854	956
Asset retirement obligation	115	115
Derivative instruments	224	299
Other current liabilities	940	896
Total current liabilities	2,133	2,266
LONG-TERM DEBT	9,374	9,374
DEFERRED CREDITS AND OTHER NONCURRENT LIABILITIES:
Income taxes	3,671	3,586
Asset retirement obligation	440	430
Other	452	446
Total deferred credits and other noncurrent liabilities	4,563	4,462
COMMITMENTS AND CONTINGENCIES		33,396
APACHE SHAREHOLDERS' EQUITY	33,082
TOTAL EQUITY	33,082	33,396
Total liabilities and shareholders' equity	49,152	49,498
Apache Finance Canada [Member]
CURRENT ASSETS:
Cash and cash equivalents	3	3		5
Drilling advances	1
Total current assets	4	3
OTHER ASSETS:
Equity in affiliates	1,181	1,155
Deferred charges and other	1,007	1,006
Total assets	2,192	2,164
CURRENT LIABILITIES:
Accounts payable	12	2
Other current liabilities	7	10
Total current liabilities	19	12
LONG-TERM DEBT	298	298
DEFERRED CREDITS AND OTHER NONCURRENT LIABILITIES:
Other	250	250
Total deferred credits and other noncurrent liabilities	250	250
COMMITMENTS AND CONTINGENCIES		1,604
APACHE SHAREHOLDERS' EQUITY	1,625
TOTAL EQUITY	1,625	1,604
Total liabilities and shareholders' equity	2,192	2,164
All Other Subsidiaries of Apache Corporation [Member]
CURRENT ASSETS:
Cash and cash equivalents	1,638	1,748	243	155
Receivables, net of allowance	1,598	1,909
Inventories	695	843
Drilling advances	303	322
Prepaid assets and other	187	146
Total current assets	4,421	4,968
PROPERTY AND EQUIPMENT, NET	35,975	36,329
OTHER ASSETS:
Intercompany receivable	1,066
Equity in affiliates	444	449
Goodwill, net	1,196	1,196
Deferred charges and other	1,356	1,309
Total assets	44,458	44,251
CURRENT LIABILITIES:
Accounts payable	572	658
Current debt		53
Asset retirement obligation	67	6
Other current liabilities	1,565	1,705
Intercompany payable	5,741	5,357
Total current liabilities	7,945	7,779
LONG-TERM DEBT	1
DEFERRED CREDITS AND OTHER NONCURRENT LIABILITIES:
Intercompany payable	1,319	1,572
Income taxes	4,846	4,778
Asset retirement obligation	2,556	2,671
Other	700	711
Total deferred credits and other noncurrent liabilities	9,421	9,732
COMMITMENTS AND CONTINGENCIES		24,743
APACHE SHAREHOLDERS' EQUITY	24,996
Noncontrolling interest	2,095	1,997
TOTAL EQUITY	27,091	26,740
Total liabilities and shareholders' equity	$ 44,458	$ 44,251