Selected Balance Sheet Data

3 Months Ended

Mar. 31, 2026

Balance Sheet Related Disclosures [Abstract]

Selected Balance Sheet Data

3. Selected Balance Sheet Data

(Millions of Dollars)	March 31, 2026		Dec. 31, 2025
Accounts receivable, net
Accounts receivable	$	184	$	169
Less allowance for bad debts	(9)		(10)
Accounts receivable, net	$	175	$	159

(Millions of Dollars)	March 31, 2026		Dec. 31, 2025
Inventories
Materials and supplies	$	75	$	74
Fuel	8		10
Total inventories	$	83	$	84

(Millions of Dollars)	March 31, 2026		Dec. 31, 2025
Property, plant and equipment, net
Electric plant	$	12,370	$	12,210
Plant to be retired (a)	150		162
Construction work in progress	1,422		1,117
Total property, plant and equipment	13,942		13,489
Less accumulated depreciation	(3,125)		(3,063)
Property, plant and equipment, net	$	10,817	$	10,426

(a)Amounts include Tolk Unit 1 and 2. Amounts are reported net of accumulated depreciation.