CONSOLIDATED CONDENSED BALANCE SHEETS - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
CURRENT ASSETS
Cash and cash equivalents	$ 1,752	$ 3,033
Trade receivables, net	5,310	4,893
Inventories	1,484	1,260
Other current assets	724	746
Total current assets	9,270	9,932
INVESTMENTS IN UNCONSOLIDATED ENTITIES	1,725	1,680
PROPERTY, PLANT AND EQUIPMENT, net of accumulated depreciation, depletion and amortization of $43,913 at March 31, 2019, and $42,983 at December 31, 2018	31,900	31,437
OPERATING LEASE ASSETS	684
LONG-TERM RECEIVABLES AND OTHER ASSETS, NET	801	805
TOTAL ASSETS	44,380	43,854
CURRENT LIABILITIES
Current maturities of long-term debt	116	116
Current lease liabilities	240
Accounts payable	5,261	4,885
Accrued liabilities	1,920	2,411
Total current liabilities	7,537	7,412
LONG-TERM DEBT, NET	10,203	10,201
DEFERRED CREDITS AND OTHER LIABILITIES
Deferred domestic and foreign income taxes, net	918	907
Asset retirement obligations	1,430	1,424
Pension and postretirement obligations	816	809
Environmental remediation reserves	755	762
Lease liabilities	465
Other	1,020	1,009
Total deferred credits and other liabilities	5,404	4,911
STOCKHOLDERS' EQUITY
Common stock, at par value (896,293,910 shares at March 31, 2019, and 895,115,637 shares at December 31, 2018)	179	179
Treasury stock (148,416,051 shares at March 31, 2019, and 145,726,051 shares at December 31, 2018)	(10,653)	(10,473)
Additional paid-in capital	8,083	8,046
Retained earnings	23,795	23,750
Accumulated other comprehensive loss	(168)	(172)
Total stockholders’ equity	21,236	21,330
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 44,380	$ 43,854