CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Operating revenues
Electric, non-affiliates	$ 191	$ 178	$ 394	$ 356
Electric, affiliates	52	46	99	92
Natural gas	35	31	113	88
Total operating revenues	278	255	606	536
Operating expenses
Electric fuel and purchased power, non-affiliates	4	5	8	10
Purchased power, affiliates	120	106	228	206
Cost of natural sold and transported	20	20	65	51
O&M expenses	54	50	107	99
Conservation program expenses	3	3	6	6
Depreciation and amortization	40	36	78	73
Taxes (other than income taxes)	7	8	15	15
Total operating expenses	248	228	507	460
Operating income	30	27	99	76
Other expense, net	(1)	0	(1)	0
Allowance for funds used during construction — equity	1	1	3	2
Interest charges and financing costs
Interest charges, includes other financing costs of $1, $—, $1 and $—, respectively	11	12	22	21
Allowance for funds used during construction — debt	0	(1)	(1)	(1)
Total interest charges and financing costs	11	11	21	20
Income before income taxes	19	17	80	58
Income tax expense	4	3	18	12
Net income	$ 15	$ 14	$ 62	$ 46