v3.19.3
Revenue From Contracts with Customers Disaggregation of Revenues (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Disaggregation of Revenue [Line Items]        
Commodity revenue $ 2,710 $ 2,845 $ 7,376 $ 7,362
Revenues 2,792 [1] 2,890 [1] 7,990 [2] 7,158 [2]
West [Member]        
Disaggregation of Revenue [Line Items]        
Revenues 856 [1] 701 [1] 2,187 [2] 1,536 [2]
Texas [Member]        
Disaggregation of Revenue [Line Items]        
Revenues 867 [1] 1,022 [1] 2,509 [2] 2,155 [2]
East [Member]        
Disaggregation of Revenue [Line Items]        
Revenues 348 [1] 460 [1] 1,683 [2] 1,415 [2]
Retail [Member]        
Disaggregation of Revenue [Line Items]        
Revenues 1,096 [1] 1,125 [1] 3,176 [2] 2,998 [2]
Energy and Other Products [Member]        
Disaggregation of Revenue [Line Items]        
Commodity revenue 1,388 1,603 3,597 3,754
Energy and Other Products [Member] | West [Member]        
Disaggregation of Revenue [Line Items]        
Commodity revenue 238 369 675 744
Energy and Other Products [Member] | Texas [Member]        
Disaggregation of Revenue [Line Items]        
Commodity revenue 490 470 1,110 1,100
Energy and Other Products [Member] | East [Member]        
Disaggregation of Revenue [Line Items]        
Commodity revenue 169 221 496 473
Energy and Other Products [Member] | Retail [Member]        
Disaggregation of Revenue [Line Items]        
Commodity revenue 491 543 1,316 1,437
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 198 264 665 656
Capacity Revenue [Member] | West [Member]        
Disaggregation of Revenue [Line Items]        
Commodity revenue 52 51 123 105
Capacity Revenue [Member] | Texas [Member]        
Disaggregation of Revenue [Line Items]        
Commodity revenue 31 23 96 72
Capacity Revenue [Member] | East [Member]        
Disaggregation of Revenue [Line Items]        
Commodity revenue 115 190 446 479
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 1,586 1,867 4,262 4,410
Revenues Relating to Physical or Executory Contracts - Third Party [Member] | West [Member]        
Disaggregation of Revenue [Line Items]        
Commodity revenue 290 420 798 849
Revenues Relating to Physical or Executory Contracts - Third Party [Member] | Texas [Member]        
Disaggregation of Revenue [Line Items]        
Commodity revenue 521 493 1,206 1,172
Revenues Relating to Physical or Executory Contracts - Third Party [Member] | East [Member]        
Disaggregation of Revenue [Line Items]        
Commodity revenue 284 411 942 952
Revenues Relating to Physical or Executory Contracts - Third Party [Member] | Retail [Member]        
Disaggregation of Revenue [Line Items]        
Commodity revenue 491 543 1,316 1,437
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] 11 9 28 22
Affiliate Revenue [Member] | Texas [Member]        
Disaggregation of Revenue [Line Items]        
Commodity revenue [3] 14 11 42 24
Affiliate Revenue [Member] | East [Member]        
Disaggregation of Revenue [Line Items]        
Commodity revenue [3] 21 20 78 62
Affiliate Revenue [Member] | Retail [Member]        
Disaggregation of Revenue [Line Items]        
Commodity revenue [3] 2 0 6 2
Affiliate Revenue [Member] | Intersegment Eliminations [Member]        
Disaggregation of Revenue [Line Items]        
Commodity revenue [3] (48) (40) (154) (110)
Revenues Relating to Leases and Derivative Instruments [Member]        
Disaggregation of Revenue [Line Items]        
Revenues [4] $ 1,206 $ 1,023 $ 3,728 $ 2,748
[1] Includes intersegment revenues of $133 million and $160 million in the West, $225 million and $238 million in Texas, $13 million and $19 million in the East and $4 million and $1 million in Retail for the three months ended September 30, 2019 and 2018, respectively.
[2] Includes intersegment revenues of $395 million and $344 million in the West, $784 million and $447 million in Texas, $378 million and $152 million in the East and $8 million and $3 million in Retail for the nine months ended September 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.