Revenues (Tables)

9 Months Ended

Sep. 30, 2023

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

PSCo’s operating revenues consisted of the following:

	Three Months Ended Sept. 30, 2023
(Millions of Dollars)	Electric		Natural Gas		All Other		Total
Major revenue types
Revenue from contracts with customers:
Residential	$	398	$	88	$	5	$	491
C&I	538		44		7		589
Other	13		—		—		13
Total retail	949		132		12		1,093
Wholesale	53		—		—		53
Transmission	25		—		—		25
Other	16		27		—		43
Total revenue from contracts with customers	1,043		159		12		1,214
Alternative revenue and other	70		6		—		76
Total revenues	$	1,113	$	165	$	12	$	1,290

	Three Months Ended Sept. 30, 2022
(Millions of Dollars)	Electric		Natural Gas		All Other		Total
Major revenue types
Revenue from contracts with customers:
Residential	$	431	$	136	$	4	$	571
C&I	556		64		7		627
Other	13		—		—		13
Total retail	1,000		200		11		1,211
Wholesale	63		—		—		63
Transmission	25		—		—		25
Other	15		30		—		45
Total revenue from contracts with customers	1,103		230		11		1,344
Alternative revenue and other	34		5		—		39
Total revenues	$	1,137	$	235	$	11	$	1,383

	Nine Months Ended Sept. 30, 2023
(Millions of Dollars)	Electric		Natural Gas		All Other		Total
Major revenue types
Revenue from contracts with customers:
Residential	$	1,003	$	790	$	14	$	1,807
C&I	1,403		335		27		1,765
Other	40		—		—		40
Total retail	2,446		1,125		41		3,612
Wholesale	170		—		—		170
Transmission	68		—		—		68
Other	44		99		—		143
Total revenue from contracts with customers	2,728		1,224		41		3,993
Alternative revenue and other	149		23		—		172
Total revenues	$	2,877	$	1,247	$	41	$	4,165
	Nine Months Ended Sept. 30, 2022
(Millions of Dollars)	Electric		Natural Gas		All Other		Total
Major revenue types
Revenue from contracts with customers:
Residential	$	1,025	$	686	$	11	$	1,722
C&I	1,383		279		16		1,678
Other	38		—		—		38
Total retail	2,446		965		27		3,438
Wholesale	200		—		—		200
Transmission	65		—		—		65
Other	39		106		—		145
Total revenue from contracts with customers	2,750		1,071		27		3,848
Alternative revenue and other	99		16		12		127
Total revenues	$	2,849	$	1,087	$	39	$	3,975