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Selected Balance Sheet Data
3 Months Ended
Mar. 31, 2023
Balance Sheet Related Disclosures [Abstract]  
Selected Balance Sheet Data
(Millions of Dollars)March 31, 2023Dec. 31, 2022
Accounts receivable, net
Accounts receivable$1,426 $1,495 
Less allowance for bad debts(126)(122)
Accounts receivable, net$1,300 $1,373 

(Millions of Dollars)March 31, 2023Dec. 31, 2022
Inventories
Materials and supplies$340 $330 
Fuel169 201 
Natural gas71 272 
Total inventories$580 $803 
(Millions of Dollars)March 31, 2023Dec. 31, 2022
Property, plant and equipment, net
Electric plant$50,227 $49,639 
Natural gas plant8,612 8,514 
Common and other property3,001 2,970 
Plant to be retired (a)
2,180 2,217 
Construction work in progress2,224 2,124 
Total property, plant and equipment66,244 65,464 
Less accumulated depreciation(17,694)(17,502)
Nuclear fuel3,266 3,183 
Less accumulated amortization(2,920)(2,892)
Property, plant and equipment, net$48,896 $48,253