Segments and Related Information (Tables)

12 Months Ended

Dec. 31, 2023

Segment Reporting [Abstract]

Results from Operations by Reportable Segment

PSCo’s segment information:

(Millions of Dollars)	2023		2022		2021
Regulated Electric
Operating revenues — external	$	3,731	$	3,795	$	3,413
Intersegment revenue	1		1		1
Total revenues	$	3,732	$	3,796	$	3,414
Depreciation and amortization	692		650		566
Interest charges and financing costs	224		200		179
Income tax benefit	(2)		(11)		(16)
Net income	529		550		495
Regulated Natural Gas
Total revenues	$	1,734	$	1,860	$	1,355
Depreciation and amortization	224		190		171
Interest charges and financing costs	67		59		53
Income tax expense	37		49		45
Net income	149		180		168
All Other
Total revenues (a)	$	54	$	53	$	47
Depreciation and amortization	8		8		7
Interest charges and financing costs	1		1		2
Income tax (benefit) expense	(6)		(1)		4
Net (loss) income	17		(3)		(3)
Consolidated Total
Total revenues (a)	$	5,520	$	5,709	$	4,816
Reconciling eliminations	(1)		(1)		(1)
Total operating revenues	$	5,519	$	5,708	$	4,815
Depreciation and amortization	924		848		744
Interest charges and financing costs	292		260		234
Income tax expense	29		37		33
Net income	695		727		660

(a)Operating revenues include $5 million of other affiliate revenue for the years ended Dec. 31, 2023, 2022 and 2021, respectively. See Note 13 for further information.