| Disaggregation of Revenue [Table Text Block] |
The following tables represent a disaggregation of our revenue for the three and nine months ended September 30, 2019 and 2018 by reportable segment (in millions). See Note 13 for a description of our segments. | | | | | | | | | | | | | | | | | | | | | | | | | | Three Months Ended September 30, 2019 | | Wholesale | | | | | | | | West | | Texas | | East | | Retail | | Elimination | | Total | Third Party: | | | | | | | | | | | | Energy & other products | $ | 238 |
| | $ | 490 |
| | $ | 169 |
| | $ | 491 |
| | $ | — |
| | $ | 1,388 |
| Capacity | 52 |
| | 31 |
| | 115 |
| | — |
| | — |
| | 198 |
| Revenues relating to physical or executory contracts – third party | $ | 290 |
| | $ | 521 |
| | $ | 284 |
| | $ | 491 |
| | $ | — |
| | $ | 1,586 |
| | | | | | | | | | | | | Affiliate(1): | $ | 11 |
| | $ | 14 |
| | $ | 21 |
| | $ | 2 |
| | $ | (48 | ) | | $ | — |
| | | | | | | | | | | | | Revenues relating to leases and derivative instruments(2) | | | | | | | | | | | $ | 1,206 |
| Total operating revenues | | | | | | | | | | | $ | 2,792 |
|
| | | | | | | | | | | | | | | | | | | | | | | | | | Three Months Ended September 30, 2018 | | Wholesale | | | | | | | | West | | Texas | | East | | Retail | | Elimination | | Total | Third Party: | | | | | | | | | | | | Energy & other products | $ | 369 |
| | $ | 470 |
| | $ | 221 |
| | $ | 543 |
| | $ | — |
| | $ | 1,603 |
| Capacity | 51 |
| | 23 |
| | 190 |
| | — |
| | — |
| | 264 |
| Revenues relating to physical or executory contracts – third party | $ | 420 |
| | $ | 493 |
| | $ | 411 |
| | $ | 543 |
| | $ | — |
| | $ | 1,867 |
| | | | | | | | | | | | | Affiliate(1): | $ | 9 |
| | $ | 11 |
| | $ | 20 |
| | $ | — |
| | $ | (40 | ) | | $ | — |
| | | | | | | | | | | | | Revenues relating to leases and derivative instruments(2) | | | | | | | | | | | $ | 1,023 |
| Total operating revenues | | | | | | | | | | | $ | 2,890 |
|
| | | | | | | | | | | | | | | | | | | | | | | | | | Nine Months Ended September 30, 2019 | | Wholesale | | | | | | | | West | | Texas | | East | | Retail | | Elimination | | Total | Third Party: | | | | | | | | | | | | Energy & other products | $ | 675 |
| | $ | 1,110 |
| | $ | 496 |
| | $ | 1,316 |
| | $ | — |
| | $ | 3,597 |
| Capacity | 123 |
| | 96 |
| | 446 |
| | — |
| | — |
| | 665 |
| Revenues relating to physical or executory contracts – third party | $ | 798 |
| | $ | 1,206 |
| | $ | 942 |
| | $ | 1,316 |
| | $ | — |
| | $ | 4,262 |
| | | | | | | | | | | | | Affiliate(1): | $ | 28 |
| | $ | 42 |
| | $ | 78 |
| | $ | 6 |
| | $ | (154 | ) | | $ | — |
| | | | | | | | | | | | | Revenues relating to leases and derivative instruments(2) | | | | | | | | | | | $ | 3,728 |
| Total operating revenues | | | | | | | | | | | $ | 7,990 |
|
| | | | | | | | | | | | | | | | | | | | | | | | | | Nine Months Ended September 30, 2018 | | Wholesale | | | | | | | | West | | Texas | | East | | Retail | | Elimination | | Total | Third Party: | | | | | | | | | | | | Energy & other products | $ | 744 |
| | $ | 1,100 |
| | $ | 473 |
| | $ | 1,437 |
| | $ | — |
| | $ | 3,754 |
| Capacity | 105 |
| | 72 |
| | 479 |
| | — |
| | — |
| | 656 |
| Revenues relating to physical or executory contracts – third party | $ | 849 |
| | $ | 1,172 |
| | $ | 952 |
| | $ | 1,437 |
| | $ | — |
| | $ | 4,410 |
| | | | | | | | | | | | | Affiliate(1): | $ | 22 |
| | $ | 24 |
| | $ | 62 |
| | $ | 2 |
| | $ | (110 | ) | | $ | — |
| | | | | | | | | | | | | Revenues relating to leases and derivative instruments(2) | | | | | | | | | | | $ | 2,748 |
| Total operating revenues | | | | | | | | | | | $ | 7,158 |
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___________ | | (1) | Affiliate energy, other and capacity revenues reflect revenues on transactions between wholesale and retail affiliates excluding affiliate activity related to leases and derivative instruments. All such activity supports retail supply needs from the wholesale business and/or allows for collateral margin netting efficiencies at Calpine. |
| | (2) | Revenues relating to contracts accounted for as leases and derivatives include energy and capacity revenues relating to PPAs that we are required to account for as operating leases and physical and financial commodity derivative contracts, primarily relating to power, natural gas and environmental products. Revenue related to derivative instruments includes revenue recorded in Commodity revenue and mark-to-market gain (loss) within our operating revenues on our Consolidated Condensed Statements of Operations. |
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