STATEMENT OF CONSOLIDATED CASH FLOWS (Unaudited) - USD ($)	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss including noncontrolling interests	$ (4,959,000,000)	$ (435,000,000)
Adjustments to reconcile net loss to net cash provided by operating activities:
Unrealized derivative instrument losses, net	142,000,000	52,000,000
Gain on divestitures	(24,000,000)	(20,000,000)
Exploratory dry hole expense and unproved leasehold impairments	138,000,000	107,000,000
Depreciation, depletion, and amortization	1,382,000,000	1,959,000,000
Accretion expense	81,000,000	80,000,000
Impairments	4,492,000,000	249,000,000
Deferred income tax benefit	(71,000,000)	(52,000,000)
Loss (gain) on extinguishment of debt	(152,000,000)	75,000,000
Other	45,000,000	35,000,000
Changes in operating assets and liabilities:
Receivables	202,000,000	124,000,000
Inventories	16,000,000	(16,000,000)
Drilling advances	(10,000,000)	(2,000,000)
Deferred charges and other	(7,000,000)	(1,000,000)
Accounts payable	(211,000,000)	(82,000,000)
Accrued expenses	(211,000,000)	(1,000,000)
Deferred credits and noncurrent liabilities	37,000,000	17,000,000
NET CASH PROVIDED BY OPERATING ACTIVITIES	890,000,000	2,089,000,000
CASH FLOWS FROM INVESTING ACTIVITIES:
Additions to oil and gas property	(1,075,000,000)	(2,015,000,000)
Additions to Altus gathering, processing, and transmission facilities	(27,000,000)	(294,000,000)
Leasehold and property acquisitions	(3,000,000)	(39,000,000)
Contributions to Altus equity method interests	(286,000,000)	(338,000,000)
Acquisition of Altus equity method interests	0	(670,000,000)
Proceeds from sale of oil and gas properties	132,000,000	590,000,000
Other, net	(17,000,000)	(17,000,000)
NET CASH USED IN INVESTING ACTIVITIES	(1,276,000,000)	(2,783,000,000)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from Apache credit facility, net	87,000,000	0
Proceeds from Altus credit facility, net	184,000,000	235,000,000
Fixed-rate debt borrowings	1,238,000,000	989,000,000
Payments on fixed-rate debt	(980,000,000)	(1,150,000,000)
Distributions to noncontrolling interest - Egypt	(61,000,000)	(235,000,000)
Distributions to Altus Preferred Unit limited partners	(11,000,000)	0
Redeemable noncontrolling interest - Altus Preferred Unit limited partners	0	611,000,000
Dividends paid	(113,000,000)	(282,000,000)
Other	(43,000,000)	(25,000,000)
NET CASH PROVIDED BY FINANCING ACTIVITIES	301,000,000	143,000,000
NET DECREASE IN CASH AND CASH EQUIVALENTS	(85,000,000)	(551,000,000)
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR	247,000,000	714,000,000
CASH AND CASH EQUIVALENTS AT END OF PERIOD	162,000,000	163,000,000
SUPPLEMENTARY CASH FLOW DATA:
Interest paid, net of capitalized interest	341,000,000	318,000,000
Income taxes paid, net of refunds	$ 153,000,000	$ 473,000,000