v3.19.1

Consolidated Statements of Operations - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Operating revenues: |  |  |  |
Commodity revenue |  | $ 9,865 | $ 8,836 | $ 6,943
Mark to Market Gain Loss on Derivatives included in Operating Revenues |  | (373) | (101) | (245)
Other revenue |  | 20 | 17 | 18
Operating revenues | [1] | 9,512 | 8,752 | 6,716
Operating expenses: |  |  |  |
Commodity expense |  | 6,914 | 6,268 | 4,431
Mark to Market Gain Loss on Derivatives Included in Fuel and Purchased Energy Expense |  | (165) | 70 | (244)
Fuel and purchased energy expense |  | 6,749 | 6,338 | 4,187
Operating and maintenance expense |  | 1,020 | 1,080 | 977
Depreciation and amortization expense |  | 739 | 724 | 662
General and other administrative expense |  | 158 | 155 | 140
Other operating expenses |  | 98 | 85 | 79
Total operating expenses |  | 8,764 | 8,382 | 6,045
Impairment losses |  | 10 | 41 | 13
(Gain) on sale of assets, net |  | 0 | (27) | (157)
(Income) from unconsolidated subsidiaries |  | (24) | (22) | (24)
Income from operations |  | 762 | 378 | 839
Interest expense |  | 617 | 621 | 631
(Gain) loss on extinguishment of debt |  | (28) | 38 | 25
Other (income) expense, net |  | 81 | 32 | 24
Income before income taxes |  | 92 | (313) | 159
Income tax expense |  | 64 | 8 | 48
Net income (loss) |  | 28 | (321) | 111
Net income attributable to the noncontrolling interest |  | (18) | (18) | (19)
Net income (loss) attributable to Calpine |  | $ 10 | $ (339) | $ 92
[1] | Includes intersegment revenues of $488 million, $324 million and $20 million in the West, $573 million, $361 million and $81 million in Texas, $234 million, $237 million and $48 million in the East and $4 million, $4 million, $2 million in Retail for the years ended December 31, 2018, 2017 and 2016, respectively.

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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 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 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 + Details
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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=115205541&loc=SL114868664-224227 + Details
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