Revenue from Contracts with Customers

Disaggregation of Revenues with Customers

The following tables represent a disaggregation of our revenue for the three and six months ended June 30, 2019 and 2018 by reportable segment (in millions). See Note 13 for a description of our segments.



	Three Months Ended June 30, 2019
	Wholesale
	West		Texas		East		Retail		Elimination			Total
Third-Party:
Energy & other products	$	145	$	318	$	124	$	413	$	—		$	1,000
Capacity	36		33		154		—		—			223
Revenues relating to physical or executory contracts – third-party	$	181	$	351	$	278	$	413	$	—		$	1,223

Affiliate⁽¹⁾:	$	6	$	14	$	30	$	1	$	(51	)	$	—

Revenues relating to leases and derivative instruments⁽²⁾												$	1,376
Total operating revenues												$	2,599



	Three Months Ended June 30, 2018
	Wholesale
	West		Texas		East		Retail		Elimination			Total
Third-Party:
Energy & other products	$	176	$	326	$	120	$	451	$	—		$	1,073
Capacity	35		23		140		—		—			198
Revenues relating to physical or executory contracts – third-party	$	211	$	349	$	260	$	451	$	—		$	1,271

Affiliate⁽¹⁾:	$	5	$	9	$	21	$	1	$	(36	)	$	—

Revenues relating to leases and derivative instruments⁽²⁾												$	988
Total operating revenues												$	2,259



	Six Months Ended June 30, 2019
	Wholesale
	West		Texas		East		Retail		Elimination			Total
Third-Party:
Energy & other products	$	437	$	620	$	327	$	825	$	—		$	2,209
Capacity	71		65		331		—		—			467
Revenues relating to physical or executory contracts – third-party	$	508	$	685	$	658	$	825	$	—		$	2,676

Affiliate⁽¹⁾:	$	17	$	28	$	57	$	4	$	(106	)	$	—

Revenues relating to leases and derivative instruments⁽²⁾												$	2,522
Total operating revenues												$	5,198



	Six Months Ended June 30, 2018
	Wholesale
	West		Texas		East		Retail		Elimination			Total
Third-Party:
Energy & other products	$	375	$	630	$	252	$	894	$	—		$	2,151
Capacity	54		49		289		—		—			392
Revenues relating to physical or executory contracts – third-party	$	429	$	679	$	541	$	894	$	—		$	2,543

Affiliate⁽¹⁾:	$	13	$	13	$	42	$	2	$	(70	)	$	—

Revenues relating to leases and derivative instruments⁽²⁾												$	1,725
Total operating revenues												$	4,268

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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.

Performance Obligations and Contract Balances

At June 30, 2019 and December 31, 2018, deferred revenue balances relating to contracts with our customers were included in other current liabilities on our Consolidated Condensed Balance Sheets and primarily relate to sales of environmental products and capacity. We classify deferred revenue as current or long-term based on the timing of when we expect to recognize revenue. The balance outstanding at June 30, 2019 and December 31, 2018 was $22 million and $14 million, respectively. Revenue recognized during the three months ended June 30, 2019 and 2018, relating to the deferred revenue balance at the beginning of each period was $2 million and $3 million, respectively. Revenue recognized during the six months ended June 30, 2019 and 2018, relating to the deferred revenue balance at the beginning of each period was and $3 million and $9 million, respectively. Revenue recognized each period relating to deferred revenue balances resulted from our performance under the customer contracts. The change in the deferred revenue balance during the three and six months ended June 30, 2019 and 2018 was primarily due to the timing difference of when consideration was received and when the related good or service was transferred.

Performance Obligations not yet Satisfied

As of June 30, 2019, we have entered into certain contracts for fixed and determinable amounts with customers under which we have not yet completed our performance obligations which primarily includes agreements for which we are providing capacity from our generating facilities. We have revenues related to the sale of capacity through participation in various ISO capacity auctions estimated based upon cleared volumes and the sale of capacity to our customers of $258 million that will be recognized during the remainder of 2019, and $517 million, $468 million, $249 million and $50 million that will be recognized during the years ending December 31, 2020, 2021, 2022 and 2023, respectively, and $72 million thereafter. Revenues under these contracts will be recognized as we transfer control of the commodities to our customers.