XML 23 R12.htm IDEA: XBRL DOCUMENT v3.23.2
Selected Balance Sheet Data
 6 Months Ended
Jun. 30, 2023
Balance Sheet Related Disclosures [Abstract]  
Selected Balance Sheet Data
(Millions of Dollars)June 30, 2023Dec. 31, 2022
Accounts receivable, net
Accounts receivable$1,232 $1,495 
Less allowance for bad debts(121)(122)
Accounts receivable, net$1,111 $1,373 

(Millions of Dollars)June 30, 2023Dec. 31, 2022
Inventories
Materials and supplies$354 $330 
Fuel199 201 
Natural gas72 272 
Total inventories$625 $803 
(Millions of Dollars)June 30, 2023Dec. 31, 2022
Property, plant and equipment, net
Electric plant$50,816 $49,639 
Natural gas plant8,777 8,514 
Common and other property3,081 2,970 
Plant to be retired (a)
2,148 2,217 
Construction work in progress2,541 2,124 
Total property, plant and equipment67,363 65,464 
Less accumulated depreciation(18,032)(17,502)
Nuclear fuel3,278 3,183 
Less accumulated amortization(2,945)(2,892)
Property, plant and equipment, net$49,664 $48,253 
(a)Amounts include Sherco Units 1, 2 and 3 and A.S. King for NSP-Minnesota; Comanche Units 2 and 3, Craig Units 1 and 2, Hayden Units 1 and 2 and coal generation assets at Pawnee pending facility gas conversion for PSCo; and Tolk and coal generation assets at Harrington pending facility gas conversion for SPS. Amounts are presented net of accumulated depreciation.