CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Operating revenues
Electric, non-affiliates	$ 185	$ 191	$ 389	$ 394
Electric, affiliates	51	52	101	99
Natural gas	24	35	101	113
Total operating revenues	260	278	591	606
Operating expenses
Electric fuel and purchased power, non-affiliates	3	4	7	8
Purchased power, affiliates	93	120	196	228
Cost of natural sold and transported	9	20	55	65
Operating and maintenance expenses	57	54	115	107
Conservation program expenses	4	3	7	6
Depreciation and amortization	42	40	83	78
Taxes (other than income taxes)	9	7	17	15
Total operating expenses	217	248	480	507
Operating income	43	30	111	99
Other income (expense), net	1	(1)	1	(1)
Allowance for funds used during construction — equity	2	1	4	3
Interest charges and financing costs
Interest charges and other financing costs	13	11	26	22
Allowance for funds used during construction — debt	(1)	0	(2)	(1)
Total interest charges and financing costs	12	11	24	21
Income before income taxes	34	19	92	80
Income tax expense	8	4	21	18
Net income	$ 26	$ 15	$ 71	$ 62