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Revenues
 12 Months Ended
Dec. 31, 2023
Revenue from Contract with Customer [Abstract]  
Revenues
Revenue is classified by the type of goods/services rendered and market/customer type. Xcel Energy’s operating revenues consisted of the following:
Year Ended Dec. 31, 2023
(Millions of Dollars)ElectricNatural GasAll OtherTotal
Major revenue types
Revenue from contracts with customers:
Residential$3,560 $1,560 $59 $5,179 
C&I5,703 833 30 6,566 
Other150 — 13 163 
Total retail9,413 2,393 102 11,908 
Wholesale815 — — 815 
Transmission649 — — 649 
Other63 156 — 219 
Total revenue from contracts with customers10,940 2,549 102 13,591 
Alternative revenue and other506 96 13 615 
Total revenues$11,446 $2,645 $115 $14,206 
Year Ended Dec. 31, 2022
(Millions of Dollars)ElectricNatural GasAll OtherTotal
Major revenue types
Revenue from contracts with customers:
Residential$3,542 $1,814 $53 $5,409 
C&I5,807 998 32 6,837 
Other148 — 10 158 
Total retail9,497 2,812 95 12,404 
Wholesale1,354 — — 1,354 
Transmission675 — — 675 
Other97 178 — 275 
Total revenue from contracts with customers11,623 2,990 95 14,708 
Alternative revenue and other500 90 12 602 
Total revenues$12,123 $3,080 $107 $15,310 
Year Ended Dec. 31, 2021
(Millions of Dollars)ElectricNatural GasAll OtherTotal
Major revenue types
Revenue from contracts with customers:
Residential$3,194 $1,222 $45 $4,461 
C&I5,050 640 30 5,720 
Other127 — 7 134 
Total retail8,371 1,862 82 10,315 
Wholesale1,540 — — 1,540 
Transmission604 — — 604 
Other61 148 — 209 
Total revenue from contracts with customers10,576 2,010 82 12,668 
Alternative revenue and other629 122 12 763 
Total revenues$11,205 $2,132 $94 $13,431