Selected Balance Sheet Data

9 Months Ended

Sep. 30, 2023

Balance Sheet Related Disclosures [Abstract]

Selected Balance Sheet Data

(Millions of dollars)	Sept. 30, 2023		Dec. 31, 2022
Accounts receivable, net
Accounts receivable	$	82	$	93
Less allowance for bad debts	(8)		(9)
Accounts receivable, net	$	74	$	84

(Millions of dollars)	Sept. 30, 2023		Dec. 31, 2022
Inventories
Materials and supplies	$	11	$	8
Fuel	10		11
Natural gas	8		20
Total inventories	$	29	$	39

(Millions of dollars)	Sept. 30, 2023		Dec. 31, 2022
Property, plant and equipment, net
Electric plant	$	3,767	$	3,579
Natural gas plant	496		465
Common and other property	290		260
Construction work in progress	237		174
Total property, plant and equipment	4,790		4,478
Less accumulated depreciation	(1,635)		(1,564)
Property, plant and equipment, net	$	3,155	$	2,914