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CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
REVENUES |  |  |
Total revenues | $ 33,669 | $ 34,055 | $ 26,223
COSTS AND EXPENSES |  |  |
Purchases and related costs | 29,452 | 29,793 | 22,985
Field operating costs | 1,303 | 1,263 | 1,183
General and administrative expenses | 297 | 316 | 276
Depreciation and amortization | 601 | 520 | 517
(Gains)/losses on asset sales and asset impairments, net | 28 | (114) | 109
Total costs and expenses | 31,681 | 31,778 | 25,070
OPERATING INCOME | 1,988 | 2,277 | 1,153
OTHER INCOME/(EXPENSE) |  |  |
Equity earnings in unconsolidated entities | 388 | 375 | 290
Gain on investment in unconsolidated entities | 271 | 200 |
Interest expense (net of capitalized interest of $34, $30 and $35, respectively) | (425) | (431) | (510)
Other income/(expense), net | 24 | (7) | (31)
INCOME BEFORE TAX | 2,246 | 2,414 | 902
Current income tax expense | (112) | (66) | (28)
Deferred income tax (expense)/benefit | 46 | (132) | (16)
NET INCOME | 2,180 | 2,216 | 858
Net income attributable to noncontrolling interests | (9) |  | (2)
NET INCOME ATTRIBUTABLE TO PAA | 2,171 | 2,216 | 856
NET INCOME PER COMMON UNIT (NOTE 4): |  |  |
Net income allocated to common unitholders — Basic | 1,967 | 2,009 | 685
Net income allocated to common unitholders — Diluted | 2,119 | 2,164 | 685
Supply And Logistics |  |  |
REVENUES |  |  |
Total revenues | 32,272 | 32,819 | 25,056
Transportation |  |  |
REVENUES |  |  |
Total revenues | 788 | 648 | 612
OTHER INCOME/(EXPENSE) |  |  |
Equity earnings in unconsolidated entities | 388 | 375 | 290
Facilities |  |  |
REVENUES |  |  |
Total revenues | $ 609 | $ 588 | $ 555
Common Units |  |  |
NET INCOME PER COMMON UNIT (NOTE 4): |  |  |
Basic weighted average common units outstanding (in units) | 727 | 726 | 717
Basic net income per common unit (in dollars per unit) | $ 2.70 | $ 2.77 | $ 0.96
Diluted weighted average common units outstanding (in units) | 800 | 799 | 718
Diluted net income per common unit (in dollars per unit) | $ 2.65 | $ 2.71 | $ 0.95

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