v3.19.3.a.u2

Segment and Significant Customer Information | 12 Months Ended
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Dec. 31, 2019
Segment and Significant Customer Information [Abstract] |
Segment and Significant Customer Information | Segment and Significant Customer Information We assess our business on a regional basis due to the effect on our financial performance of the differing characteristics of these regions, particularly with respect to competition, regulation and other factors affecting supply and demand. At December 31, 2019, our geographic reportable segments for our wholesale business are West (including geothermal), Texas and East (including Canada) and we have a separate reportable segment for our retail business. We continue to evaluate the optimal manner in which we assess our performance including our segments and future changes may result in changes to the composition of our geographic segments. Commodity Margin is a key operational measure of profit reviewed by our chief operating decision maker to assess the performance of our segments. The tables below show our financial data for our segments (including a reconciliation of our Commodity Margin to income (loss) from operations by segment) for the periods indicated (in millions).
| Year Ended December 31, 2019
| Wholesale |  |  |  |  |  |
| West |  | Texas |  | East |  | Retail |  | Consolidation and Elimination |  | Total
Total operating revenues(1) | $ | 2,743 |  |  | $ | 3,081 |  |  | $ | 2,164 |  |  | $ | 4,093 |  |  | $ | (2,009 | ) |  | $ | 10,072 |
Commodity Margin | $ | 1,151 |  |  | $ | 857 |  |  | $ | 924 |  |  | $ | 382 |  |  | $ | — |  |  | $ | 3,314 |
Add: Mark-to-market commodity activity, net and other(2) | 219 |  |  | 154 |  |  | 46 |  |  | (131 | ) |  | (34 | ) |  | 254 |
Less: |  |  |  |  |  |  |  |  |  |  |
Operating and maintenance expense | 340 |  |  | 269 |  |  | 278 |  |  | 148 |  |  | (34 | ) |  | 1,001 |
Depreciation and amortization expense | 254 |  |  | 196 |  |  | 191 |  |  | 53 |  |  | — |  |  | 694 |
General and other administrative expense | 35 |  |  | 53 |  |  | 45 |  |  | 17 |  |  | — |  |  | 150 |
Other operating expenses | 31 |  |  | 6 |  |  | 42 |  |  | — |  |  | — |  |  | 79 |
Impairment losses | — |  |  | 13 |  |  | 71 |  |  | — |  |  | — |  |  | 84 |
(Gain) on sale of assets, net | (4 | ) |  | — |  |  | (6 | ) |  | — |  |  | — |  |  | (10 | )
(Income) from unconsolidated subsidiaries | — |  |  | — |  |  | (24 | ) |  | 2 |  |  | — |  |  | (22 | )
Income from operations | 714 |  |  | 474 |  |  | 373 |  |  | 31 |  |  | — |  |  | 1,592 |
Interest expense |  |  |  |  |  |  |  |  |  |  | 609 |
(Gain) loss on extinguishment of debt and other (income) expense, net |  |  |  |  |  |  |  |  |  |  | 95 |
Income before income taxes |  |  |  |  |  |  |  |  |  |  | $ | 888 |
| Year Ended December 31, 2018
| Wholesale |  |  |  |  |  |
| West |  | Texas |  | East |  | Retail |  | Consolidation and Elimination |  | Total
Total operating revenues(1) | $ | 1,988 |  |  | $ | 2,860 |  |  | $ | 1,987 |  |  | $ | 3,976 |  |  | $ | (1,299 | ) |  | $ | 9,512 |
Commodity Margin | $ | 1,060 |  |  | $ | 646 |  |  | $ | 970 |  |  | $ | 357 |  |  | $ | — |  |  | $ | 3,033 |
Add: Mark-to-market commodity activity, net and other(2) | (165 | ) |  | (197 | ) |  | 40 |  |  | 84 |  |  | (32 | ) |  | (270 | )
Less: |  |  |  |  |  |  |  |  |  |  |
Operating and maintenance expense | 348 |  |  | 272 |  |  | 269 |  |  | 163 |  |  | (32 | ) |  | 1,020 |
Depreciation and amortization expense | 269 |  |  | 237 |  |  | 180 |  |  | 53 |  |  | — |  |  | 739 |
General and other administrative expense | 40 |  |  | 61 |  |  | 38 |  |  | 19 |  |  | — |  |  | 158 |
Other operating expenses | 42 |  |  | 24 |  |  | 32 |  |  | — |  |  | — |  |  | 98 |
Impairment losses | — |  |  | — |  |  | 10 |  |  | — |  |  | — |  |  | 10 |
(Income) from unconsolidated subsidiaries | — |  |  | — |  |  | (26 | ) |  | 2 |  |  | — |  |  | (24 | )
Income (loss) from operations | 196 |  |  | (145 | ) |  | 507 |  |  | 204 |  |  | — |  |  | 762 |
Interest expense |  |  |  |  |  |  |  |  |  |  | 617 |
(Gain) loss on extinguishment of debt and other (income) expense, net |  |  |  |  |  |  |  |  |  |  | 53 |
Income before income taxes |  |  |  |  |  |  |  |  |  |  | $ | 92 |
| Year Ended December 31, 2017
| Wholesale |  |  |  |  |  |
| West |  | Texas |  | East |  | Retail |  | Consolidation and Elimination |  | Total
Total operating revenues(1) | $ | 1,881 |  |  | $ | 2,342 |  |  | $ | 1,658 |  |  | $ | 3,797 |  |  | $ | (926 | ) |  | $ | 8,752 |
Commodity Margin | $ | 970 |  |  | $ | 552 |  |  | $ | 790 |  |  | $ | 396 |  |  | $ | — |  |  | $ | 2,708 |
Add: Mark-to-market commodity activity, net and other(2) | (19 | ) |  | (174 | ) |  | (62 | ) |  | (10 | ) |  | (29 | ) |  | (294 | )
Less: |  |  |  |  |  |  |  |  |  |  |
Operating and maintenance expense | 361 |  |  | 308 |  |  | 302 |  |  | 138 |  |  | (29 | ) |  | 1,080 |
Depreciation and amortization expense | 240 |  |  | 208 |  |  | 201 |  |  | 75 |  |  | — |  |  | 724 |
General and other administrative expense | 45 |  |  | 66 |  |  | 27 |  |  | 17 |  |  | — |  |  | 155 |
Other operating expenses | 38 |  |  | 14 |  |  | 33 |  |  | — |  |  | — |  |  | 85 |
Impairment losses | 28 |  |  | 13 |  |  | — |  |  | — |  |  | — |  |  | 41 |
(Gain) on sale of assets, net | — |  |  | — |  |  | (27 | ) |  | — |  |  | — |  |  | (27 | )
(Income) from unconsolidated subsidiaries | — |  |  | — |  |  | (24 | ) |  | 2 |  |  | — |  |  | (22 | )
Income (loss) from operations | 239 |  |  | (231 | ) |  | 216 |  |  | 154 |  |  | — |  |  | 378 |
Interest expense |  |  |  |  |  |  |  |  |  |  | 621 |
Debt modification and extinguishment costs and other (income) expense, net |  |  |  |  |  |  |  |  |  |  | 70 |
Loss before income taxes |  |  |  |  |  |  |  |  |  |  | $ | (313 | )
__________
(1) | Includes intersegment revenues of $530 million, $488 million and $324 million in the West, $946 million, $573 million and $361 million in Texas, $522 million, $234 million and $237 million in the East and $11 million, $4 million, $4 million in Retail for the years ended December 31, 2019, 2018 and 2017, respectively.
(2) | Includes $1 million, nil and $(8) million of lease levelization and $78 million, $104 million and $178 million of amortization expense for the years ended December 31, 2019, 2018 and 2017, respectively.
Significant Customers For the years ended December 31, 2019, 2018 and 2017, we had no significant customer that individually accounted for more than 10% of our annual consolidated revenues.

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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -URI http://asc.fasb.org/topic&trid=2134510 + Details
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