Segment Reporting (Tables)

9 Months Ended

Sep. 30, 2022

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment

NSP-Wisconsin's segment information:

	Three Months Ended Sept. 30
(Millions of Dollars)	2022		2021
Regulated Electric
Total revenues (a)	$	274	$	252
Net income	42		38
Regulated Natural Gas
Operating revenues — external	$	20	$	22
Intersegment revenue	—		1
Total revenues	$	20	$	23
Net (loss)	(3)		(4)
All Other
Net income	$	1	$	2
Consolidated Total
Total revenues (a)	$	294	$	275
Reconciling eliminations	—		(1)
Total operating revenues	$	294	$	274
Net income	40		36

(a)Total revenues include $51 million and $49 million of affiliate electric revenue for the three months ended Sept. 30, 2022 and 2021, respectively.

	Nine Months Ended Sept. 30
(Millions of Dollars)	2022		2021
Regulated Electric
Total revenues (a)	$	767	$	700
Net income	89		77
Regulated Natural Gas
Operating revenues	$	133	$	110
Intersegment revenue	—		1
Total revenues	$	133	$	111
Net income	11		3
All Other
Net income	$	2	$	2
Consolidated Total
Operating revenues (a)	$	900	$	811
Reconciling eliminations	—		(1)
Total revenues	$	900	$	810
Net income	102		82

(a)Total revenues include $150 million and $141 million of affiliate electric revenue for the nine months ended Sept. 30, 2022 and 2021, respectively.