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CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
CONSOLIDATED STATEMENTS OF OPERATIONS      
Operating revenues $ 15,218 $ 15,455 $ 14,914
Costs and expenses:      
Operating 9,341 9,496 9,249
Selling, general and administrative 1,728 1,631 1,453
Depreciation and amortization 1,671 1,574 1,477
Restructuring 9 6 4
(Gain) loss from divestitures, asset impairments and unusual items, net 35 42 (58)
Total costs and expenses 12,784 12,749 12,125
Income from operations 2,434 2,706 2,789
Other income (expense):      
Interest expense, net (425) (411) (374)
Loss on early extinguishment of debt, net (53) (85)  
Equity in net losses of unconsolidated entities (68) (55) (41)
Other, net 5 (50) 2
Total other income (expense) (541) (601) (413)
Income before income taxes 1,893 2,105 2,376
Income tax expense 397 434 453
Consolidated net income 1,496 1,671 1,923
Less: Net income (loss) attributable to noncontrolling interests   1 (2)
Net income attributable to Waste Management, Inc. $ 1,496 $ 1,670 $ 1,925
Basic earnings per common share $ 3.54 $ 3.93 $ 4.49
Diluted earnings per common share $ 3.52 $ 3.91 $ 4.45