Cover Page
Sep. 19, 2022
Document Information [Line Items]  
Amendment Flag false
Entity Registrant Name XCEL ENERGY INC.
Entity Central Index Key 0000072903
Entity Incorporation, State or Country Code MN
Document Type 8-K
Document Period End Date Sep. 19, 2022
Entity File Number 001-3034
Entity Tax Identification Number 41-0448030
Entity Address, Address Line One 414 Nicollet Mall
Entity Address, City or Town Minneapolis
Entity Address, State or Province MN
Entity Address, Postal Zip Code 55401
City Area Code (612)
Local Phone Number 330-5500
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Title of 12(b) Security Common Stock, $2.50 par value per share
Trading Symbol XEL
Security Exchange Name NASDAQ
NSPM  
Document Information [Line Items]  
Entity Registrant Name NORTHERN STATES POWER CO
Entity Central Index Key 0001123852
Entity Incorporation, State or Country Code MN
Entity File Number 001-31387
Entity Tax Identification Number 41-1967505
Entity Address, Address Line One 414 Nicollet Mall
Entity Address, City or Town Minneapolis
Entity Address, State or Province MN
Entity Address, Postal Zip Code 55401
City Area Code (612)
Local Phone Number 330-5500
NSPW  
Document Information [Line Items]  
Entity Registrant Name NORTHERN STATES POWER CO /WI/
Entity Central Index Key 0000072909
Entity Incorporation, State or Country Code WI
Entity File Number 001-03140
Entity Tax Identification Number 39-0508315
Entity Address, Address Line One 1414 W. Hamilton Avenue
Entity Address, City or Town Eau Claire
Entity Address, State or Province WI
Entity Address, Postal Zip Code 54701
City Area Code (715)
Local Phone Number 737-2625
PSCo  
Document Information [Line Items]  
Entity Registrant Name PUBLIC SERVICE COMPANY OF COLORADO
Entity Central Index Key 0000081018
Entity Incorporation, State or Country Code CO
Entity File Number 001-3280
Entity Tax Identification Number 84-0296600
Entity Address, Address Line One 1800 Larimer, Suite 1100
Entity Address, City or Town Denver
Entity Address, State or Province CO
Entity Address, Postal Zip Code 80202
City Area Code (303)
Local Phone Number 571-7511
SPS  
Document Information [Line Items]  
Entity Registrant Name SOUTHWESTERN PUBLIC SERVICE CO
Entity Central Index Key 0000092521
Entity Incorporation, State or Country Code NM
Entity File Number 001-03789
Entity Tax Identification Number 75-0575400
Entity Address, Address Line One 790 South Buchanan Street
Entity Address, City or Town Amarillo
Entity Address, State or Province TX
Entity Address, Postal Zip Code 79101
City Area Code (303)
Local Phone Number 571-7511