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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS |  |  |
Operating revenues | $ 15,455 | $ 14,914 | $ 14,485
Costs and expenses: |  |  |
Operating | 9,496 | 9,249 | 9,021
Selling, general and administrative | 1,631 | 1,453 | 1,468
Depreciation and amortization | 1,574 | 1,477 | 1,376
Restructuring | 6 | 4 |
(Gain) loss from divestitures, asset impairments and unusual items, net | 42 | (58) | (16)
Total costs and expenses | 12,749 | 12,125 | 11,849
Income from operations | 2,706 | 2,789 | 2,636
Other income (expense): |  |  |
Interest expense, net | (411) | (374) | (363)
Loss on early extinguishment of debt | (85) |  | (6)
Equity in net losses of unconsolidated entities | (55) | (41) | (68)
Other, net | (50) | 2 | (8)
Total other income (expense) | (601) | (413) | (445)
Income before income taxes | 2,105 | 2,376 | 2,191
Income tax expense | 434 | 453 | 242
Consolidated net income | 1,671 | 1,923 | 1,949
Less: Net income (loss) attributable to noncontrolling interests | 1 | (2) |
Net income attributable to Waste Management, Inc. | $ 1,670 | $ 1,925 | $ 1,949
Basic earnings per common share | $ 3.93 | $ 4.49 | $ 4.44
Diluted earnings per common share | $ 3.91 | $ 4.45 | $ 4.41

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- Definition The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -SubTopic 10 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=68048583&loc=d3e3636-108311 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.4) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 + Details
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- Definition The aggregate amount of asset impairment charges, (gains) and losses related to the divestiture of businesses and unusual items incurred during an accounting period. + References No definition available. + Details
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- Definition Interest and other income (expense), total. + References No definition available. + Details
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