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Consolidated Statements of Operations - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
REVENUES AND OTHER INCOME |  |  |
Net sales | $ 17,824 | $ 12,508 | $ 10,090
Interest, dividends and other income | 136 | 99 | 106
Gains on sale of equity investments and other assets | 974 | 667 | 202
TOTAL REVENUES AND OTHER INCOME | 18,934 | 13,274 | 10,398
COSTS AND OTHER DEDUCTIONS |  |  |
Cost of sales (excludes depreciation, depletion, and amortization of $3,976 in 2018, $4,000 in 2017, and $4,266 in 2016) | 6,568 | 5,594 | 5,189
Selling, general and administrative and other operating expenses | 1,613 | 1,424 | 1,330
Taxes other than on income | 439 | 311 | 277
Depreciation, depletion and amortization | 3,977 | 4,002 | 4,268
Asset impairments and related items | 561 | 545 | 825
Exploration expense | 110 | 82 | 62
Interest and debt expense, net | 389 | 345 | 292
TOTAL COSTS AND OTHER DEDUCTIONS | 13,657 | 12,303 | 12,243
INCOME (LOSS) BEFORE INCOME TAXES AND OTHER ITEMS | 5,277 | 971 | (1,845)
(Provision for) benefit from domestic and foreign income taxes | (1,477) | (17) | 662
Income from equity investments | 331 | 357 | 181
INCOME (LOSS) FROM CONTINUING OPERATIONS | 4,131 | 1,311 | (1,002)
Income from discontinued operations | 0 | 0 | 428
NET INCOME (LOSS) | $ 4,131 | $ 1,311 | $ (574)
BASIC EARNINGS (LOSS) PER COMMON SHARE (attributable to common stock) |  |  |
Income (loss) from continuing operations (in dollars per share) | $ 5.40 | $ 1.71 | $ (1.31)
Discontinued operations, net (in dollars per share) | 0.00 | 0.00 | 0.56
BASIC EARNINGS (LOSS) PER COMMON SHARE (in dollars per share) | 5.40 | 1.71 | (0.75)
DILUTED EARNINGS (LOSS) PER COMMON SHARE (attributable to common stock) |  |  |
Income (loss) from continuing operations (in dollars per share) | 5.39 | 1.70 | (1.31)
Discontinued operations, net (in dollars per share) | 0.00 | 0.00 | 0.56
DILUTED EARNINGS (LOSS) PER COMMON SHARE (in dollars per share) | $ 5.39 | $ 1.70 | $ (0.75)

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- Definition Exploration expenses (including prospecting) related to oil and gas producing entities and would be included in operating expenses of that entity. Costs incurred in identifying areas that may warrant examination and in examining specific areas that are considered to have prospects of containing oil and gas reserves, including costs of drilling exploratory wells and exploratory-type stratigraphic test wells. Exploration costs may be incurred both before acquiring the related property (sometimes referred to in part as prospecting costs) and after acquiring the property. Principal types of exploration costs, which include depreciation and applicable operating costs of support equipment and facilities and other costs of exploration activities, are: (i) Costs of topographical, geographical and geophysical studies, rights of access to properties to conduct those studies, and salaries and other expenses of geologists, geophysical crews, and others conducting those studies. Collectively, these are sometimes referred to as geological and geophysical or "G&G" costs. (ii) Costs of carrying and retaining undeveloped properties, such as delay rentals, ad valorem taxes on properties, legal costs for title defense, and the maintenance of land and lease records. (iii) Dry hole contributions and bottom hole contributions. (iv) Costs of drilling and equipping exploratory wells. (v) Costs of drilling exploratory-type stratigraphic test wells. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 23 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e62136-109447 + Details
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