CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Millions, $ in Millions		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Operating revenues
Electric		$ 12,123	$ 11,205	$ 9,802
Natural Gas		3,080	2,132	1,636
Other		107	94	88
Total operating revenues		15,310	13,431	11,526
Operating expenses
Electric fuel and purchased power		5,005	4,733	3,512
Cost of natural gas sold and transported		1,910	1,081	689
Cost of sales — other		44	38	37
Operating and maintenance expenses		2,491	2,321	2,324
Conservation and demand side management expenses		331	304	288
Depreciation and amortization		2,413	2,121	1,948
Taxes (other than income taxes)		688	630	612
Total operating expenses		12,882	11,228	9,410
Operating income		2,428	2,203	2,116
Other (expense) income, net		(13)	5	(6)
Earnings from equity method investments		36	62	40
Allowance for funds used during construction — equity		75	73	115
Interest charges and financing costs
Interest charges — includes other financing costs of $31, $29 and $28, respectively		953	842	840
Allowance for funds used during construction — debt		(28)	(26)	(42)
Total interest charges and financing costs		925	816	798
Income before income taxes		1,601	1,527	1,467
Income tax benefit		(135)	(70)	(6)
Net income		$ 1,736	$ 1,597	$ 1,473
Weighted average common shares outstanding:
Basic		547	539	527
Diluted	[1]	547	540	528
Earnings per average common share:
Basic		$ 3.18	$ 2.96	$ 2.79
Diluted		$ 3.17	$ 2.96	$ 2.79
Net income		$ 1,736	$ 1,597	$ 1,473

[1] Diluted common shares outstanding included common stock equivalents of 0.3 million, 0.3 million and 1.1 million shares for 2022, 2021 and 2020, respectively.