CONSOLIDATED BALANCE SHEET (Unaudited) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
CURRENT ASSETS:
Cash and cash equivalents ($51 and $24 related to Altus VIE)	$ 281	$ 262
Receivables, net of allowance of $98 and $95	1,057	908
Other current assets (Note 6) ($12 and $5 related to Altus VIE)	709	676
Total current assets	2,047	1,846
PROPERTY AND EQUIPMENT:
Oil and gas properties	41,880	41,819
Gathering, processing, and transmission facilities ($206 and $206 related to Altus VIE)	671	670
Other ($3 and $3 related to Altus VIE)	1,139	1,140
Less: Accumulated depreciation, depletion, and amortization ($16 and $13 related to Altus VIE)	(35,146)	(34,810)
Property and equipment, net	8,544	8,819
OTHER ASSETS:
Equity method interests (Note 7) ($1,567 and $1,555 related to Altus VIE)	1,567	1,555
Deferred charges and other ($6 and $5 related to Altus VIE)	495	526
Note receivable from APA Corporation (Note 2)	1,322	0
Total assets	13,975	12,746
CURRENT LIABILITIES:
Accounts payable	508	444
Accounts payable to APA Corporation	56	0
Current debt	2	2
Other current liabilities (Note 8) ($8 and $4 related to Altus VIE)	777	862
Total current liabilities	1,343	1,308
LONG-TERM DEBT (Note 10) ($657 and $624 related to Altus VIE)	8,713	8,770
DEFERRED CREDITS AND OTHER NONCURRENT LIABILITIES:
Income taxes	234	215
Asset retirement obligation (Note 9) ($65 and $64 related to Altus VIE)	1,914	1,888
Other ($161 and $144 related to Altus VIE)	579	602
Total deferred credits and other noncurrent liabilities	2,727	2,705
REDEEMABLE NONCONTROLLING INTEREST - ALTUS PREFERRED UNIT LIMITED PARTNERS (Note 13)	605	608
EQUITY (DEFICIT):
Common stock, $0 and $0.625 par, respectively, 0 and 860,000,000 shares authorized, respectively, 0 and 418,429,375 shares issued, respectively	0	262
Paid-in capital	9,557	11,735
Accumulated deficit	(9,982)	(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	(410)	(1,639)
TOTAL EQUITY (DEFICIT)	587	(645)
TOTAL LIABILITIES AND EQUITY	13,975	12,746
Noncontrolling interests, Egypt
EQUITY (DEFICIT):
Noncontrolling interest	927	925
Noncontrolling interests, Altus
EQUITY (DEFICIT):
Noncontrolling interest	$ 70	$ 69