STATEMENT OF CONSOLIDATED CHANGES IN EQUITY AND NONCONTROLLING INTEREST - USD ($) $ in Millions	Total	Common Stock	Paid-In Capital	Accumulated Deficit	Treasury Stock	Accumulated Other Comprehensive Income (Loss)	APACHE SHAREHOLDERS’ EQUITY	Noncontrolling Interests	Noncontrolling Interest, Egypt	Noncontrolling Interest, Altus	Redeemable Noncontrolling Interest - Altus Preferred Unit Limited Partners
Beginning Balance at Dec. 31, 2016	$ 7,679	$ 258	$ 12,364	$ (3,385)	$ (2,887)	$ (112)	$ 6,238	$ 1,441			$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss attributable to common stock	1,304			1,304			1,304
Net income attributable to noncontrolling interest	199								$ 199	$ 0	0
Distributions to noncontrolling interest - Egypt	(265)							(265)
Pension & Postretirement benefit plans, net of tax	7					7	7
Common dividends ($1.00 per share)	(381)		(381)				(381)
Common stock activity, net	(39)	1	(40)				(39)
Compensation expense	174		174				174
Other	113		11	(7)		109	113
Ending Balance at Dec. 31, 2017	8,791	259	12,128	(2,088)	(2,887)	4	7,416	1,375			0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss attributable to common stock	40			40			40
Net income attributable to noncontrolling interest	1								245	1	0
Distributions to noncontrolling interest - Egypt	(345)							(345)
Pension & Postretirement benefit plans, net of tax	0
Common dividends ($1.00 per share)	(380)		(380)				(380)
Common stock activity, net	(28)	1	(29)				(28)
Treasury stock activity, net	(305)				(305)		(305)
Proceeds from Altus transaction	628		222				222	406
Compensation expense	160		160				160
Other	5		5				5
Ending Balance at Dec. 31, 2018	8,812	260	12,106	(2,048)	(3,192)	4	7,130	1,682			0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss attributable to common stock	(3,553)			(3,553)			(3,553)
Net income attributable to noncontrolling interest									$ 167	$ (334)	(38)
Issuance of Altus Preferred Units											517
Distributions to noncontrolling interest - Egypt	(305)							(305)
Pension & Postretirement benefit plans, net of tax	13					13	13
Common dividends ($1.00 per share)	(376)		(376)				(376)
Common stock activity, net	(21)	1	(22)				(21)
Compensation expense	61		61				61
Other	1				2	(1)	1
Ending Balance at Dec. 31, 2019	$ 4,465	$ 261	$ 11,769	$ (5,601)	$ (3,190)	$ 16	$ 3,255	$ 1,210			$ 555