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Consolidated Balance Sheets - USD ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
CURRENT ASSETS |  |
Cash and cash equivalents | $ 2,008 | $ 3,032
Restricted cash and restricted cash equivalents | 170 | 485
Trade receivables, net of reserves of $24 in 2020 and $19 in 2019 | 2,115 | 4,233
Inventories | 1,898 | 1,581
Assets held for sale | 1,433 | 3,870
Other current assets | 1,195 | 1,432
Total current assets | 8,819 | 14,633
INVESTMENTS |  |
INVESTMENTS IN UNCONSOLIDATED ENTITIES | 3,250 | 6,389
PROPERTY, PLANT AND EQUIPMENT |  |
PROPERTY, PLANT AND EQUIPMENT | 118,964 | 124,267
Accumulated depreciation, depletion and amortization | (53,075) | (42,037)
Property, plant and equipment, net | 65,889 | 82,230
OPERATING LEASE ASSETS | 1,062 | 1,411
LONG-TERM RECEIVABLES AND OTHER ASSETS, NET | 1,044 | 2,527
TOTAL ASSETS | 80,064 | 107,190
CURRENT LIABILITIES |  |
Current maturities of long-term debt | 440 | 51
Current operating lease liabilities | 473 | 579
Accounts payable | 2,987 | 4,910
Accrued liabilities | 3,570 | 5,447
Liabilities of assets held for sale | 753 | 1,718
Total current liabilities | 8,223 | 12,705
Long-term debt, net | 35,745 | 38,537
DEFERRED CREDITS AND OTHER LIABILITIES |  |
Deferred income taxes, net | 7,113 | 9,717
Asset retirement obligations | 3,977 | 4,411
Pension and postretirement obligations | 1,763 | 1,823
Environmental remediation liabilities | 1,028 | 1,035
Operating lease liabilities | 641 | 872
Other | 3,001 | 3,858
Total deferred credits and other liabilities | 17,523 | 21,716
EQUITY |  |
Preferred stock, at $1.00 per share par value (100,000 shares at December 31, 2020) | 9,762 | 9,762
Common stock, $0.20 per share par value, authorized shares: 1.5 billion, issued shares: 2020 — 1,080,564,947 and 2019 — 1,044,434,893 | 216 | 209
Treasury stock: 2020 — 149,051,634 shares and 2019 — 150,323,151 shares | (10,665) | (10,653)
Additional paid-in capital | 16,552 | 14,955
Retained earnings | 2,996 | 20,180
Accumulated other comprehensive loss | (288) | (221)
Total stockholders’ equity | 18,573 | 34,232
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY | 80,064 | 107,190
Oil and gas |  |
PROPERTY, PLANT AND EQUIPMENT |  |
PROPERTY, PLANT AND EQUIPMENT | 102,454 | 107,801
Chemical |  |
PROPERTY, PLANT AND EQUIPMENT |  |
PROPERTY, PLANT AND EQUIPMENT | 7,356 | 7,172
Midstream and marketing |  |
PROPERTY, PLANT AND EQUIPMENT |  |
PROPERTY, PLANT AND EQUIPMENT | 8,232 | 8,176
Corporate |  |
PROPERTY, PLANT AND EQUIPMENT |  |
PROPERTY, PLANT AND EQUIPMENT | $ 922 | $ 1,118

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