CONSOLIDATED BALANCE SHEET - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
CURRENT ASSETS:
Cash and cash equivalents ($24 and $6 related to Altus VIE)	$ 262	$ 247
Receivables, net of allowance of $95 and $88	908	1,062
Other current assets (Note 5) ($5 and $5 related to Altus VIE)	676	652
Total current assets	1,846	1,961
Oil and gas, on the basis of successful efforts accounting:
Proved properties	41,217	40,540
Unproved properties and properties under development	602	666
Gathering, processing, and transmission facilities ($206 and $203 related to Altus VIE)	670	799
Other ($3 and $4 related to Altus VIE)	1,140	1,140
Property and equipment, gross	43,629	43,145
Less: Accumulated depreciation, depletion, and amortization ($13 and $1 related to Altus VIE)	(34,810)	(28,987)
Property and equipment, net	8,819	14,158
OTHER ASSETS:
Equity method interests (Note 6) ($1,555 and $1,258 related to Altus VIE)	1,555	1,258
Deferred charges and other ($5 and $4 related to Altus VIE)	526	730
Total assets	12,746	18,107
CURRENT LIABILITIES:
Accounts payable	444	695
Current debt (nil and $10 related to Altus VIE)	2	11
Other current liabilities (Note 7) ($4 and $21 related to Altus VIE)	862	1,149
Total current liabilities	1,308	1,855
LONG-TERM DEBT (Note 9) ($624 and $396 related to Altus VIE)	8,770	8,555
DEFERRED CREDITS AND OTHER NONCURRENT LIABILITIES:
Income taxes	215	346
Asset retirement obligation ($64 and $60 related to Altus VIE)	1,888	1,811
Other ($144 and $107 related to Altus VIE)	602	520
Total deferred credits and other noncurrent liabilities	2,705	2,677
COMMITMENTS AND CONTINGENCIES (Note 11)
REDEEMABLE NONCONTROLLING INTEREST - ALTUS PREFERRED UNIT LIMITED PARTNERS (Note 13)	608	555
EQUITY (DEFICIT):
Common stock, $0.625 par, 860,000,000 shares authorized, 418,429,375 and 417,026,863 shares issued, respectively	262	261
Paid-in capital	11,735	11,769
Accumulated deficit	(10,461)	(5,601)
Treasury stock, at cost, 40,946,745 and 40,964,193 shares, respectively	(3,189)	(3,190)
Accumulated other comprehensive income	14	16
APACHE SHAREHOLDERS’ EQUITY (DEFICIT)	(1,639)	3,255
TOTAL EQUITY (DEFICIT)	(645)	4,465
TOTAL LIABILITIES AND EQUITY	$ 12,746	$ 18,107
Common stock, par value (in USD per share)	$ 0.625	$ 0.625
Common stock, shares authorized (in shares)	860,000,000	860,000,000
Common stock, shares issued (in shares)	418,429,375	417,026,863
Treasury stock, shares (in shares)	40,946,745	40,964,193
Variable Interest Entity, Primary Beneficiary
CURRENT ASSETS:
Cash and cash equivalents ($24 and $6 related to Altus VIE)	$ 24	$ 6
Receivables, net of allowance of $95 and $88	95	88
Other current assets (Note 5) ($5 and $5 related to Altus VIE)	5	5
Oil and gas, on the basis of successful efforts accounting:
Gathering, processing, and transmission facilities ($206 and $203 related to Altus VIE)	206	203
Other ($3 and $4 related to Altus VIE)	3	4
Less: Accumulated depreciation, depletion, and amortization ($13 and $1 related to Altus VIE)	(13)	(1)
OTHER ASSETS:
Equity method interests (Note 6) ($1,555 and $1,258 related to Altus VIE)	1,555	1,258
Deferred charges and other ($5 and $4 related to Altus VIE)	5	4
CURRENT LIABILITIES:
Current debt (nil and $10 related to Altus VIE)	0	10
Other current liabilities (Note 7) ($4 and $21 related to Altus VIE)	4	21
LONG-TERM DEBT (Note 9) ($624 and $396 related to Altus VIE)	624	396
DEFERRED CREDITS AND OTHER NONCURRENT LIABILITIES:
Asset retirement obligation ($64 and $60 related to Altus VIE)	64	60
Other ($144 and $107 related to Altus VIE)	144	107
Noncontrolling Interest, Egypt
EQUITY (DEFICIT):
Noncontrolling interest	925	1,137
Noncontrolling Interest, Altus
EQUITY (DEFICIT):
Noncontrolling interest	$ 69	$ 73