CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Operating revenues
Electric, non-affiliates	$ 203	$ 204
Electric, affiliates	53	50
Natural gas	54	77
Total operating revenues	310	331
Operating expenses
Electric fuel and purchased power, non-affiliates	4	4
Purchased power, affiliates	103	103
Cost of natural sold and transported	24	46
Operating and maintenance expenses	56	58
Conservation program expenses	3	3
Depreciation and amortization	45	41
Taxes (other than income taxes)	9	8
Total operating expenses	244	263
Operating income	66	68
Allowance for funds used during construction — equity	3	2
Interest charges and financing costs
Interest charges and other financing costs	14	13
Allowance for funds used during construction — debt	(1)	(1)
Total interest charges and financing costs	13	12
Income before income taxes	56	58
Income tax expense	13	13
Net income	$ 43	$ 45