v3.25.2
Selected Balance Sheet Data (Tables)
6 Months Ended
Jun. 30, 2025
Balance Sheet Related Disclosures [Abstract]  
Accounts Receivable, Net
(Millions of dollars)June 30, 2025Dec. 31, 2024
Accounts receivable, net
Accounts receivable$75 $79 
Less allowance for bad debts(5)(7)
Accounts receivable, net$70 $72 
Inventories
(Millions of dollars)June 30, 2025Dec. 31, 2024
Inventories
Materials and supplies$15 $13 
Fuel11 10 
Natural gas
Total inventories$29 $28 
Property, Plant and Equipment, Net
(Millions of dollars)June 30, 2025Dec. 31, 2024
Property, plant and equipment, net
Electric plant$4,272 $4,103 
Natural gas plant573 547 
Common and other property315 309 
Construction work in progress499 406 
Total property, plant and equipment5,659 5,365 
Less accumulated depreciation(1,747)(1,695)
Property, plant and equipment, net$3,912 $3,670