CONSOLIDATED BALANCE SHEET (Unaudited) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
CURRENT ASSETS:
Cash and cash equivalents ($109 and $24 related to Altus VIE)	$ 348	$ 262
Receivables, net of allowance of $99 and $95	1,167	908
Other current assets (Note 6) ($9 and $5 related to Altus VIE)	599	676
Accounts receivable from APA Corporation	55	0
Total current assets	2,169	1,846
PROPERTY AND EQUIPMENT:
Oil and gas properties	40,205	41,819
Gathering, processing, and transmission facilities ($207 and $206 related to Altus VIE)	673	670
Other ($4 and $3 related to Altus VIE)	1,124	1,140
Less: Accumulated depreciation, depletion, and amortization ($22 and $13 related to Altus VIE)	(33,889)	(34,810)
Property and equipment, net	8,113	8,819
OTHER ASSETS:
Equity method interests (Note 7) ($1,538 and $1,555 related to Altus VIE)	1,538	1,555
Decommissioning security for sold Gulf of Mexico properties (Note 12)	740	0
Deferred charges and other ($8 and $5 related to Altus VIE)	514	526
Note receivable from APA Corporation (Note 2)	1,352	0
Total assets	14,426	12,746
CURRENT LIABILITIES:
Accounts payable ($9 and $6 related to Altus VIE)	643	444
Note payable to APA Corporation	243	0
Current debt	215	2
Other current liabilities (Note 8) ($15 and $4 related to Altus VIE)	937	862
Total current liabilities	2,038	1,308
LONG-TERM DEBT (Note 10) ($657 and $624 related to Altus VIE)	7,193	8,770
DEFERRED CREDITS AND OTHER NONCURRENT LIABILITIES:
Income taxes	169	215
Asset retirement obligation, long-term	1,912	1,888
Decommissioning contingency for sold Gulf of Mexico properties (Note 12)	1,186	0
Other ($126 and $144 related to Altus VIE)	527	602
Total deferred credits and other noncurrent liabilities	3,794	2,705
REDEEMABLE NONCONTROLLING INTEREST - ALTUS PREFERRED UNIT LIMITED PARTNERS (Note 13)	635	608
EQUITY (DEFICIT):
Common stock, $0.625 par, 1,000 and 860,000,000 shares authorized, respectively, 1,000 and 418,429,375 shares issued, respectively	0	262
Paid-in capital	9,532	11,735
Accumulated deficit	(9,726)	(10,461)
Treasury stock, at cost, 0 and 40,946,745 shares, respectively	0	(3,189)
Accumulated other comprehensive income	15	14
DEFICIT ATTRIBUTABLE TO APA CORPORATION	(179)	(1,639)
TOTAL EQUITY (DEFICIT)	766	(645)
TOTAL LIABILITIES AND EQUITY	14,426	12,746
Noncontrolling interests, Egypt
EQUITY (DEFICIT):
Noncontrolling interest	854	925
Noncontrolling Interest, Altus
EQUITY (DEFICIT):
Noncontrolling interest	$ 91	$ 69