v3.20.2

Segment Information | 6 Months Ended
--- | ---
Jun. 30, 2020
Segment Reporting [Abstract] |
Segment Information | Segment 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 June 30, 2020, 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 financial data for our segments (including a reconciliation of Commodity Margin to income (loss) from operations by segment) for the periods indicated (in millions):
| Three Months Ended June 30, 2020
| Wholesale |  |  |  | Consolidation |  |
| West |  | Texas |  | East |  | Retail |  | Elimination |  | Total
Total operating revenues(1) | $ | 470 |  |  | $ | 620 |  |  | $ | 244 |  |  | $ | 720 |  |  | $ | (310 | ) |  | $ | 1,744 |
Commodity Margin | $ | 269 |  |  | $ | 172 |  |  | $ | 193 |  |  | $ | 89 |  |  | $ | — |  |  | $ | 723 |
Add: Mark-to-market commodity activity, net and other(2) | 67 |  |  | (17 | ) |  | (38 | ) |  | 56 |  |  | (9 | ) |  | 59 |
Less: |  |  |  |  |  |  |  |  |  |  |  |
Operating and maintenance expense | 96 |  |  | 73 |  |  | 71 |  |  | 35 |  |  | (9 | ) |  | 266 |
Depreciation and amortization expense | 56 |  |  | 50 |  |  | 45 |  |  | 12 |  |  | — |  |  | 163 |
General and other administrative expense | 6 |  |  | 13 |  |  | 8 |  |  | 4 |  |  | — |  |  | 31 |
Other operating expenses | 7 |  |  | 1 |  |  | 6 |  |  | — |  |  | — |  |  | 14 |
(Income) from unconsolidated subsidiaries | — |  |  | — |  |  | (4 | ) |  | — |  |  | — |  |  | (4 | )
Income from operations | 171 |  |  | 18 |  |  | 29 |  |  | 94 |  |  | — |  |  | 312 |
Interest expense |  |  |  |  |  |  |  |  |  |  | 167 |
Gain (loss) on extinguishment of debt and other (income) expense, net |  |  |  |  |  |  |  |  |  |  | 13 |
Income before income taxes |  |  |  |  |  |  |  |  |  |  | $ | 132 |
| Three Months Ended June 30, 2019
| Wholesale |  |  |  | Consolidation |  |
| West |  | Texas |  | East |  | Retail |  | Elimination |  | Total
Total operating revenues(1) | $ | 649 |  |  | $ | 899 |  |  | $ | 646 |  |  | $ | 1,082 |  |  | $ | (677 | ) |  | $ | 2,599 |
Commodity Margin | $ | 251 |  |  | $ | 173 |  |  | $ | 235 |  |  | $ | 93 |  |  | $ | — |  |  | $ | 752 |
Add: Mark-to-market commodity activity, net and other(2) | 58 |  |  | 240 |  |  | 94 |  |  | (182 | ) |  | (10 | ) |  | 200 |
Less: |  |  |  |  |  |  |  |  |  |  |
Operating and maintenance expense | 84 |  |  | 66 |  |  | 72 |  |  | 33 |  |  | (10 | ) |  | 245 |
Depreciation and amortization expense | 60 |  |  | 54 |  |  | 48 |  |  | 13 |  |  | — |  |  | 175 |
General and other administrative expense | 5 |  |  | 15 |  |  | 10 |  |  | 4 |  |  | — |  |  | 34 |
Other operating expenses | 7 |  |  | 1 |  |  | 11 |  |  | — |  |  | — |  |  | 19 |
Impairment losses | — |  |  | — |  |  | 40 |  |  | — |  |  | — |  |  | 40 |
(Income) from unconsolidated subsidiaries | — |  |  | — |  |  | (6 | ) |  | 1 |  |  | — |  |  | (5 | )
Income (loss) from operations | 153 |  |  | 277 |  |  | 154 |  |  | (140 | ) |  | — |  |  | 444 |
Interest expense |  |  |  |  |  |  |  |  |  |  | 157 |
Gain (loss) on extinguishment of debt and other (income) expense, net |  |  |  |  |  |  |  |  |  |  | 8 |
Income before income taxes |  |  |  |  |  |  |  |  |  |  | $ | 279 |
| Six Months Ended June 30, 2020
| Wholesale |  |  |  | Consolidation |  |
| West |  | Texas |  | East |  | Retail |  | Elimination |  | Total
Total operating revenues(3) | $ | 1,175 |  |  | $ | 1,270 |  |  | $ | 786 |  |  | $ | 1,628 |  |  | $ | (823 | ) |  | $ | 4,036 |
Commodity Margin | $ | 503 |  |  | $ | 285 |  |  | $ | 343 |  |  | $ | 180 |  |  | $ | — |  |  | $ | 1,311 |
Add: Mark-to-market commodity activity, net and other(4) | 121 |  |  | 84 |  |  | 44 |  |  | 40 |  |  | (17 | ) |  | 272 |
Less: |  |  |  |  |  |  |  |  |  |  |
Operating and maintenance expense | 182 |  |  | 139 |  |  | 134 |  |  | 68 |  |  | (17 | ) |  | 506 |
Depreciation and amortization expense | 112 |  |  | 100 |  |  | 91 |  |  | 24 |  |  | — |  |  | 327 |
General and other administrative expense | 14 |  |  | 24 |  |  | 16 |  |  | 8 |  |  | — |  |  | 62 |
Other operating expenses | 15 |  |  | 3 |  |  | 13 |  |  | — |  |  | — |  |  | 31 |
(Income) from unconsolidated subsidiaries | — |  |  | — |  |  | (4 | ) |  | — |  |  | — |  |  | (4 | )
Income from operations | 301 |  |  | 103 |  |  | 137 |  |  | 120 |  |  | — |  |  | 661 |
Interest expense |  |  |  |  |  |  |  |  |  |  | 336 |
Gain (loss) on extinguishment of debt and other (income) expense, net |  |  |  |  |  |  |  |  |  |  | 17 |
Income before income taxes |  |  |  |  |  |  |  |  |  |  | $ | 308 |
| Six Months Ended June 30, 2019
| Wholesale |  |  |  | Consolidation |  |
| West |  | Texas |  | East |  | Retail |  | Elimination |  | Total
Total operating revenues(3) | $ | 1,331 |  |  | $ | 1,642 |  |  | $ | 1,335 |  |  | $ | 2,080 |  |  | $ | (1,190 | ) |  | $ | 5,198 |
Commodity Margin | $ | 515 |  |  | $ | 335 |  |  | $ | 500 |  |  | $ | 181 |  |  | $ | — |  |  | $ | 1,531 |
Add: Mark-to-market commodity activity, net and other(4) | 114 |  |  | 284 |  |  | 107 |  |  | (235 | ) |  | (18 | ) |  | 252 |
Less: |  |  |  |  |  |  |  |  |  |  |
Operating and maintenance expense | 165 |  |  | 131 |  |  | 139 |  |  | 67 |  |  | (18 | ) |  | 484 |
Depreciation and amortization expense | 133 |  |  | 99 |  |  | 91 |  |  | 26 |  |  | — |  |  | 349 |
General and other administrative expense | 12 |  |  | 27 |  |  | 19 |  |  | 8 |  |  | — |  |  | 66 |
Other operating expenses | 16 |  |  | 3 |  |  | 19 |  |  | — |  |  | — |  |  | 38 |
Impairment losses | — |  |  | — |  |  | 55 |  |  | — |  |  | — |  |  | 55 |
(Income) from unconsolidated subsidiaries | — |  |  | — |  |  | (12 | ) |  | 1 |  |  | — |  |  | (11 | )
Income (loss) from operations | 303 |  |  | 359 |  |  | 296 |  |  | (156 | ) |  | — |  |  | 802 |
Interest expense |  |  |  |  |  |  |  |  |  |  | 306 |
Gain (loss) on extinguishment of debt and other (income) expense, net |  |  |  |  |  |  |  |  |  |  | 27 |
Income before income taxes |  |  |  |  |  |  |  |  |  |  | $ | 469 |
_________
(1) | Includes intersegment revenues of $70 million and $100 million in the West, $214 million and $348 million in Texas, $24 million and $228 million in the East and $2 million and $1 million in Retail for the three months ended June 30, 2020 and 2019, respectively.
(2) | Includes $(22) million and $(19) million of lease levelization and $9 million and $18 million of amortization expense for the three months ended June 30, 2020 and 2019, respectively.
(3) | Includes intersegment revenues of $189 million and $262 million in the West, $432 million and $559 million in Texas, $199 million and $365 million in the East and $3 million and $4 million in Retail for the six months ended June 30, 2020 and 2019, respectively.
(4) | Includes $(40) million and $(35) million of lease levelization and $25 million and $39 million of amortization expense for the six months ended June 30, 2020 and 2019, respectively.

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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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