v3.26.3
Selected Balance Sheet Data (Tables)
9 Months Ended
Sep. 30, 2026
Balance Sheet Related Disclosures [Abstract]  
Accounts Receivable, Net
(Millions of Dollars)Sept. 30, 2026Dec. 31, 2025
Accounts receivable, net
Accounts receivable$551 $518 
Less allowance for bad debts(37)(38)
Accounts receivable, net$514 $480 
Inventories
(Millions of Dollars)Sept. 30, 2026Dec. 31, 2025
Inventories
Materials and supplies$178 $136 
Fuel67 64 
Natural gas66 77 
Total inventories$311 $277 
Property, Plant and Equipment, Net
(Millions of Dollars)Sept. 30, 2026Dec. 31, 2025
Property, plant and equipment, net
Electric plant$21,851 $20,451 
Natural gas plant7,542 7,222 
Common and other property1,763 1,704 
Plant to be retired (a)
889 929 
Construction work in progress6,793 4,367 
Total property, plant and equipment38,838 34,673 
Less accumulated depreciation(7,571)(6,851)
Property, plant and equipment, net$31,267 $27,822 
(a)Amounts include Comanche Unit 3, Craig Unit 2 and Hayden Units 1 and 2. Amounts are presented net of accumulated depreciation.