Consolidated Condensed Statements of Income and Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenues
Electric	$ 420	$ 411
Gas	127	128
Total revenues	547	539
Expenses
Fuel	101	107
Purchased power	2	4
Cost of natural gas sold	42	47
Operations and maintenance	134	130
Depreciation and amortization	97	92
Taxes, other than income	51	50
Total expenses	427	430
Income from operations	120	109
Other income
Allowance for equity funds used during construction	6	2
Other income, net	1	2
Total other income	7	4
Interest charges
Interest expense	37	34
Allowance for borrowed funds used during construction	(3)	(1)
Total interest charges	34	33
Income before provision for income taxes	93	80
Provision for income taxes	16	16
Net income	77	64
Comprehensive income	$ 77	$ 64