Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
CURRENT ASSETS
Cash and cash equivalents	$ 3,033	$ 1,672
Trade receivables, net of reserves of $21 in 2018 and $16 in 2017	4,893	4,145
Inventories	1,260	1,246
Assets held for sale	0	474
Other current assets	746	733
Total current assets	9,932	8,270
INVESTMENTS
Investment in unconsolidated entities	1,680	1,515
PROPERTY, PLANT AND EQUIPMENT
Oil and gas segment	58,799	53,409
Chemical segment	7,001	6,847
Midstream and marketing segment	8,070	9,493
Corporate	550	497
GROSS PROPERTY, PLANT AND EQUIPMENT	74,420	70,246
Accumulated depreciation, depletion and amortization	(42,983)	(39,072)
Property, plant and equipment, net	31,437	31,174
LONG-TERM RECEIVABLES AND OTHER ASSETS, NET	805	1,067
TOTAL ASSETS	43,854	42,026
CURRENT LIABILITIES
Current maturities of long-term debt	116	500
Accounts payable	4,885	4,408
Accrued liabilities	2,411	2,492
Total current liabilities	7,412	7,400
LONG-TERM DEBT, NET	10,201	9,328
DEFERRED CREDITS AND OTHER LIABILITIES
Deferred domestic and foreign income taxes, net	907	581
Asset retirement obligations	1,424	1,241
Pension and postretirement obligations	809	1,005
Environmental remediation reserves	762	728
Other	1,009	1,171
Total deferred credits and other liabilities	4,911	4,726
STOCKHOLDERS' EQUITY
Common stock, $0.20 per share par value, authorized shares: 1.1 billion, issued shares: 2018 — 895,115,637 and 2017 — 893,468,707	179	179
Treasury stock: 2018 — 145,726,051 shares and 2017 — 128,364,195 shares	(10,473)	(9,168)
Additional paid-in capital	8,046	7,884
Retained earnings	23,750	21,935
Accumulated other comprehensive loss	(172)	(258)
Total stockholders' equity	21,330	20,572
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 43,854	$ 42,026