v3.19.2
Revenue From Contracts with Customers Disaggregation of Revenues (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Disaggregation of Revenue [Line Items]        
Commodity revenue $ 2,128 $ 2,121 $ 4,666 $ 4,517
Revenues 2,599 [1] 2,259 [1] 5,198 [2] 4,268 [2]
West [Member]        
Disaggregation of Revenue [Line Items]        
Revenues 649 [1] 355 [1] 1,331 [2] 835 [2]
Texas [Member]        
Disaggregation of Revenue [Line Items]        
Revenues 899 [1] 993 [1] 1,642 [2] 1,133 [2]
East [Member]        
Disaggregation of Revenue [Line Items]        
Revenues 646 [1] 341 [1] 1,335 [2] 955 [2]
Retail [Member]        
Disaggregation of Revenue [Line Items]        
Revenues 1,082 [1] 935 [1] 2,080 [2] 1,873 [2]
Energy and Other Products [Member]        
Disaggregation of Revenue [Line Items]        
Commodity revenue 1,000 1,073 2,209 2,151
Energy and Other Products [Member] | West [Member]        
Disaggregation of Revenue [Line Items]        
Commodity revenue 145 176 437 375
Energy and Other Products [Member] | Texas [Member]        
Disaggregation of Revenue [Line Items]        
Commodity revenue 318 326 620 630
Energy and Other Products [Member] | East [Member]        
Disaggregation of Revenue [Line Items]        
Commodity revenue 124 120 327 252
Energy and Other Products [Member] | Retail [Member]        
Disaggregation of Revenue [Line Items]        
Commodity revenue 413 451 825 894
Energy and Other Products [Member] | Intersegment Eliminations [Member]        
Disaggregation of Revenue [Line Items]        
Commodity revenue 0 0 0 0
Capacity Revenue [Member]        
Disaggregation of Revenue [Line Items]        
Commodity revenue 223 198 467 392
Capacity Revenue [Member] | West [Member]        
Disaggregation of Revenue [Line Items]        
Commodity revenue 36 35 71 54
Capacity Revenue [Member] | Texas [Member]        
Disaggregation of Revenue [Line Items]        
Commodity revenue 33 23 65 49
Capacity Revenue [Member] | East [Member]        
Disaggregation of Revenue [Line Items]        
Commodity revenue 154 140 331 289
Capacity Revenue [Member] | Retail [Member]        
Disaggregation of Revenue [Line Items]        
Commodity revenue 0 0 0 0
Capacity Revenue [Member] | Intersegment Eliminations [Member]        
Disaggregation of Revenue [Line Items]        
Commodity revenue 0 0 0 0
Revenues Relating to Physical or Executory Contracts - Third Party [Member]        
Disaggregation of Revenue [Line Items]        
Commodity revenue 1,223 1,271 2,676 2,543
Revenues Relating to Physical or Executory Contracts - Third Party [Member] | West [Member]        
Disaggregation of Revenue [Line Items]        
Commodity revenue 181 211 508 429
Revenues Relating to Physical or Executory Contracts - Third Party [Member] | Texas [Member]        
Disaggregation of Revenue [Line Items]        
Commodity revenue 351 349 685 679
Revenues Relating to Physical or Executory Contracts - Third Party [Member] | East [Member]        
Disaggregation of Revenue [Line Items]        
Commodity revenue 278 260 658 541
Revenues Relating to Physical or Executory Contracts - Third Party [Member] | Retail [Member]        
Disaggregation of Revenue [Line Items]        
Commodity revenue 413 451 825 894
Revenues Relating to Physical or Executory Contracts - Third Party [Member] | Intersegment Eliminations [Member]        
Disaggregation of Revenue [Line Items]        
Commodity revenue 0 0 0 0
Affiliate Revenue [Member]        
Disaggregation of Revenue [Line Items]        
Commodity revenue [3] 0 0 0 0
Affiliate Revenue [Member] | West [Member]        
Disaggregation of Revenue [Line Items]        
Commodity revenue [3] 6 5 17 13
Affiliate Revenue [Member] | Texas [Member]        
Disaggregation of Revenue [Line Items]        
Commodity revenue [3] 14 9 28 13
Affiliate Revenue [Member] | East [Member]        
Disaggregation of Revenue [Line Items]        
Commodity revenue [3] 30 21 57 42
Affiliate Revenue [Member] | Retail [Member]        
Disaggregation of Revenue [Line Items]        
Commodity revenue [3] 1 1 4 2
Affiliate Revenue [Member] | Intersegment Eliminations [Member]        
Disaggregation of Revenue [Line Items]        
Commodity revenue [3] (51) (36) (106) (70)
Revenues Relating to Leases and Derivative Instruments [Member]        
Disaggregation of Revenue [Line Items]        
Revenues [4] $ 1,376 $ 988 $ 2,522 $ 1,725
[1] Includes intersegment revenues of $100 million and $70 million in the West, $348 million and $276 million in Texas, $228 million and $18 million in the East and $1 million and $1 million in Retail for the three months ended June 30, 2019 and 2018, respectively.
[2] Includes intersegment revenues of $262 million and $184 million in the West, $559 million and $209 million in Texas, $365 million and $133 million in the East and $4 million and $2 million in Retail for the six months ended June 30, 2019 and 2018, respectively.
[3] 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.
[4] 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.