Consolidated Income Statement - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
OPERATING REVENUES
TOTAL OPERATING REVENUES	$ 15,670	$ 13,676	$ 12,246
OPERATING EXPENSES
Depreciation and amortization	2,056	2,032	1,920
Taxes, other than income taxes	3,005	2,810	2,575
TOTAL OPERATING EXPENSES	13,046	10,850	9,592
OPERATING INCOME	2,624	2,826	2,654
OTHER INCOME (DEDUCTIONS)
Investment income (loss)	20	(420)	(214)
Other income	402	22	23
Allowance for equity funds used during construction	19	21	17
Other deductions	(115)	(161)	(227)
TOTAL OTHER INCOME (DEDUCTIONS)	326	(538)	(401)
INCOME BEFORE INTEREST AND INCOME TAX EXPENSE	2,950	2,288	2,253
INTEREST EXPENSE
Interest on long-term debt	987	930	915
Other interest	(99)	(14)	118
Allowance for borrowed funds used during construction	(36)	(11)	(14)
NET INTEREST EXPENSE	852	905	1,019
INCOME BEFORE INCOME TAX EXPENSE	2,098	1,383	1,234
INCOME TAX EXPENSE	498	190	90
NET INCOME	1,600	1,193	1,144
(Loss) Income attributable to non-controlling interest	(60)	(153)	43
NET INCOME	$ 1,660	$ 1,346	$ 1,101
Net income per common share — basic (in dollars per share)	$ 4.68	$ 3.86	$ 3.29
Net income per common share — diluted (in dollars per share)	$ 4.66	$ 3.85	$ 3.28
AVERAGE NUMBER OF SHARES OUTSTANDING — BASIC (in shares)	354.5	348.4	334.8
AVERAGE NUMBER OF SHARES OUTSTANDING — DILUTED (in shares)	355.8	349.4	335.7
Electric
OPERATING REVENUES
TOTAL OPERATING REVENUES	$ 10,522	$ 9,485	$ 8,730
Gas
OPERATING REVENUES
TOTAL OPERATING REVENUES	3,237	2,638	2,269
OPERATING EXPENSES
Operating costs	1,245	690	527
Steam
OPERATING REVENUES
TOTAL OPERATING REVENUES	593	532	508
Non-utility
OPERATING REVENUES
TOTAL OPERATING REVENUES	1,318	1,021	739
Purchased power
OPERATING EXPENSES
Operating costs	2,479	1,835	1,600
Fuel
OPERATING EXPENSES
Operating costs	356	229	156
Other operations and maintenance
OPERATING EXPENSES
Operating costs	$ 3,905	$ 3,254	$ 2,814