REVENUE (Tables)

6 Months Ended

Jun. 30, 2023

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

The following table presents the disaggregation of TEP’s Operating Revenues on the Condensed Consolidated Statements of Income by type of service:

	Three Months Ended June 30,				Six Months Ended June 30,
(in millions)	2023		2022		2023		2022
Retail	$	297	$	306	$	530	$	524
Wholesale (1)	64		99		190		155
Other Services	39		23		70		47
Revenues from Contracts with Customers	400		428		790		726
Alternative Revenues	8		2		21		13
Other	10		10		43		37
Total Operating Revenues	$	418	$	440	$	854	$	776

(1)In 2022, the FERC issued the 2022 Final FERC Rate Order approving TEP's proposed OATT revisions. Prior to July 2022, wholesale revenues excluded an estimate of revenues probable of refund.