The following tables represent a disaggregation of our revenue for the year ended December 31, 2018 by reportable segment (in millions). See Note 18 for a description of our segments.



	Wholesale
	West		Texas		East		Retail		Elimination			Total
Third Party:
Energy & other products	$	1,070	$	1,500	$	621	$	1,857	$	—		$	5,048
Capacity	152		94		657		—		—			903
Revenues relating to physical or executory contracts – third party	$	1,222	$	1,594	$	1,278	$	1,857	$	—		$	5,951

Affiliate⁽¹⁾:	$	30	$	34	$	89	$	4	$	(157	)	$	—

Revenues relating to leases and derivative instruments⁽²⁾												$	3,561
Total operating revenues												$	9,512

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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 Statements of Operations.