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Consolidated Balance Sheets - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
CURRENT ASSETS |  |  |
Cash and cash equivalents |  | $ 2,764 | $ 2,008
Restricted cash and restricted cash equivalents |  | 24 | 170
Trade receivables, net of reserves of $35 in 2021 and $24 in 2020 |  | 4,208 | 2,115
Inventories |  | 1,846 | 1,898
Assets held for sale |  | 72 | 1,433
Other current assets |  | 1,297 | 1,195
Total current assets |  | 10,211 | 8,819
INVESTMENTS IN UNCONSOLIDATED ENTITIES |  | 2,938 | 3,250
PROPERTY, PLANT AND EQUIPMENT |  |  |
PROPERTY, PLANT AND EQUIPMENT |  | 118,157 | 118,964
Accumulated depreciation, depletion and amortization |  | (58,227) | (53,075)
Total property, plant and equipment, net |  | 59,930 | 65,889
OPERATING LEASE ASSETS |  | 726 | 1,062
LONG-TERM RECEIVABLES AND OTHER ASSETS, NET |  | 1,231 | 1,044
TOTAL ASSETS |  | 75,036 | 80,064
CURRENT LIABILITIES |  |  |
Current maturities of long-term debt | [1] | 186 | 440
Current operating lease liabilities |  | 186 | 473
Accounts payable |  | 3,899 | 2,987
Accrued liabilities |  | 4,046 | 3,570
Liabilities of assets held for sale |  | 7 | 753
Total current liabilities |  | 8,324 | 8,223
Long-term debt, net | [2] | 29,431 | 35,745
DEFERRED CREDITS AND OTHER LIABILITIES |  |  |
Deferred income taxes, net |  | 7,039 | 7,113
Asset retirement obligations |  | 3,687 | 3,977
Pension and postretirement obligations |  | 1,540 | 1,763
Environmental remediation liabilities |  | 944 | 1,028
Operating lease liabilities |  | 585 | 641
Other |  | 3,159 | 3,001
Total deferred credits and other liabilities |  | 16,954 | 17,523
EQUITY |  |  |
Preferred stock, at $1.00 per share par value (100,000 shares as of December 31, 2021 and 2020) |  | 9,762 | 9,762
Common stock, $0.20 per share par value, authorized shares: 1.5 billion, issued shares: 2021 — 1,083,423,094 and 2020 — 1,080,564,947 |  | 217 | 216
Treasury stock: 2021 — 149,348,394 shares and 2020 — 149,051,634 shares |  | (10,673) | (10,665)
Additional paid-in capital |  | 16,749 | 16,552
Retained earnings |  | 4,480 | 2,996
Accumulated other comprehensive loss |  | (208) | (288)
Total stockholders’ equity |  | 20,327 | 18,573
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY |  | 75,036 | 80,064
Operating segments | Oil and gas |  |  |
PROPERTY, PLANT AND EQUIPMENT |  |  |
PROPERTY, PLANT AND EQUIPMENT |  | 101,251 | 102,454
TOTAL ASSETS |  | 56,132 | 62,931
Operating segments | Chemical |  |  |
PROPERTY, PLANT AND EQUIPMENT |  |  |
PROPERTY, PLANT AND EQUIPMENT |  | 7,571 | 7,356
Operating segments | Midstream and marketing |  |  |
PROPERTY, PLANT AND EQUIPMENT |  |  |
PROPERTY, PLANT AND EQUIPMENT |  | 8,371 | 8,232
Corporate |  |  |
PROPERTY, PLANT AND EQUIPMENT |  |  |
PROPERTY, PLANT AND EQUIPMENT |  | $ 964 | $ 922
[1] | Included $85 million and $42 million of current finance lease liabilities as of December 31, 2021, and 2020, respectively.
[2] | Included $504 million and $316 million of finance lease liabilities as of December 31, 2021, and 2020, respectively.

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