CONSOLIDATED CONDENSED BALANCE SHEETS - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
CURRENT ASSETS
Cash and cash equivalents	$ 2,270	$ 2,008
Restricted cash and restricted cash equivalents	183	170
Trade receivables, net	3,046	2,115
Inventories	2,173	1,898
Other current assets	1,153	1,195
Assets held for sale	1,249	1,433
Total current assets	10,074	8,819
INVESTMENTS IN UNCONSOLIDATED ENTITIES	3,170	3,250
PROPERTY, PLANT AND EQUIPMENT	119,278	118,964
Accumulated depreciation, depletion and amortization	(55,205)	(53,075)
Net property, plant and equipment	64,073	65,889
OPERATING LEASE ASSETS	949	1,062
LONG-TERM RECEIVABLES AND OTHER ASSETS, NET	1,089	1,044
TOTAL ASSETS	79,355	80,064
CURRENT LIABILITIES
Current maturities of long-term debt	559	440
Current operating lease liabilities	369	473
Accounts payable	3,416	2,987
Accrued liabilities	3,566	3,570
Liabilities of assets held for sale	721	753
Total current liabilities	8,631	8,223
LONG-TERM DEBT, NET
Long-term debt, net	35,466	35,745
DEFERRED CREDITS AND OTHER LIABILITIES
Deferred income taxes, net	6,941	7,113
Asset retirement obligations	4,030	3,977
Pension and postretirement obligations	1,553	1,763
Environmental remediation liabilities	1,029	1,028
Operating lease liabilities	628	641
Other	2,777	3,001
Total deferred credits and other liabilities	16,958	17,523
STOCKHOLDERS' EQUITY
Preferred stock at par value, 100,000 shares at March 31, 2021 and December 31, 2020	9,762	9,762
Common stock at par value, 1,082,618,615 shares at March 31, 2021 and 1,080,564,947 shares at December 31, 2020	217	216
Treasury stock, 149,199,930 shares at March 31, 2021 and 149,051,634 shares at December 31, 2020	(10,668)	(10,665)
Additional paid-in capital	16,585	16,552
Retained earnings	2,639	2,996
Accumulated other comprehensive loss	(235)	(288)
Total stockholders' equity	18,300	18,573
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	79,355	80,064
Oil and gas segment
CURRENT ASSETS
PROPERTY, PLANT AND EQUIPMENT	102,718	102,454
Chemical segment
CURRENT ASSETS
PROPERTY, PLANT AND EQUIPMENT	7,387	7,356
Midstream and marketing segment
CURRENT ASSETS
PROPERTY, PLANT AND EQUIPMENT	8,249	8,232
Corporate
CURRENT ASSETS
PROPERTY, PLANT AND EQUIPMENT	$ 924	$ 922