CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Operating revenues
Electric, non-affiliates	$ 203	$ 178
Electric, affiliates	47	46
Natural gas	78	57
Total operating revenues	328	281
Operating expenses
Electric fuel and purchased power, non-affiliates	4	5
Purchased power, affiliates	108	100
Cost of natural sold and transported	45	31
Operating and maintenance expenses	53	49
Conservation program expenses	3	3
Depreciation and amortization	38	37
Taxes (other than income taxes)	8	7
Total operating expenses	259	232
Operating income	69	49
Allowance for funds used during construction — equity	2	1
Interest charges and financing costs
Interest charges	11	9
Allowance for funds used during construction — debt	(1)	0
Total interest charges and financing costs	10	9
Income before income taxes	61	41
Income tax expense	14	9
Net income	$ 47	$ 32