Revenues Revenues (Tables)

12 Months Ended

Dec. 31, 2021

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

NSP-Minnesota’s operating revenues consisted of the following:

	Year Ended Dec. 31, 2021
(Millions of Dollars)	Electric		Natural Gas		All Other		Total
Major revenue types
Revenue from contracts with customers:
Residential	$	1,374	$	315	$	33	$	1,722
C&I	2,107		246		—		2,353
Other	33		—		6		39
Total retail	3,514		561		39		4,114
Wholesale	442		—		—		442
Transmission	242		—		—		242
Interchange	501		—		—		501
Other	7		14		—		21
Total revenue from contracts with customers	4,706		575		39		5,320
Alternative revenue and other	388		48		—		436
Total revenues	$	5,094	$	623	$	39	$	5,756

	Year Ended Dec. 31, 2020
(Millions of Dollars)	Electric		Natural Gas		All Other		Total
Major revenue types
Revenue from contracts with customers:
Residential	$	1,375	$	261	$	31	$	1,667
C&I	1,935		189		—		2,124
Other	33		—		6		39
Total retail	3,343		450		37		3,830
Wholesale	202		—		—		202
Transmission	238		—		—		238
Interchange	440		—		—		440
Other	15		7		—		22
Total revenue from contracts with customers	4,238		457		37		4,732
Alternative revenue and other	333		36		—		369
Total revenues	$	4,571	$	493	$	37	$	5,101

	Year Ended Dec. 31, 2019
(Millions of Dollars)	Electric		Natural Gas		All Other		Total
Major revenue types
Revenue from contracts with customers:
Residential	$	1,280	$	303	$	30	$	1,613
C&I	2,054		229		—		2,283
Other	33		—		5		38
Total retail	3,367		532		35		3,934
Wholesale	210		—		—		210
Transmission	216		—		—		216
Interchange	459		—		—		459
Other	12		9		—		21
Total revenue from contracts with customers	4,264		541		35		4,840
Alternative revenue and other	242		30		—		272
Total revenues	$	4,506	$	571	$	35	$	5,112