CONSOLIDATED INCOME STATEMENT (UNAUDITED) - USD ($) shares in Millions, $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2023	Jun. 30, 2022
OPERATING REVENUES
TOTAL OPERATING REVENUES	$ 2,944		$ 3,415		$ 7,347	$ 7,475
OPERATING EXPENSES
Depreciation and amortization	496		539		994	1,068
Taxes, other than income taxes	716		718		1,482	1,471
TOTAL OPERATING EXPENSES	2,673		3,028		6,192	6,290
Gain on sale of the Clean Energy Businesses	13		0		867	0
OPERATING INCOME	284		387		2,022	1,185
OTHER INCOME (DEDUCTIONS)
Investment income	8		5		16	10
Other income	210		113		414	196
Allowance for equity funds used during construction	6		5		13	10
Other deductions	(17)		(34)		(39)	(35)
TOTAL OTHER INCOME	207		89		404	181
INCOME BEFORE INTEREST AND INCOME TAX EXPENSE	491		476		2,426	1,366
INTEREST EXPENSE (INCOME)
Interest on long-term debt	234		242		485	482
Other interest expense (income)	14		(32)		39	(87)
Allowance for borrowed funds used during construction	(12)		(5)		(25)	(8)
NET INTEREST EXPENSE	236		205		499	387
INCOME BEFORE INCOME TAX EXPENSE	255		271		1,927	979
INCOME TAX EXPENSE	29		17		272	171
NET INCOME	226	$ 1,430	254	$ 554	1,655	808
Loss attributable to non-controlling interest	0		(1)		(3)	(49)
NET INCOME	$ 226		$ 255		$ 1,658	$ 857
Net income per common share - basic (dollars per share)	$ 0.65		$ 0.72		$ 4.74	$ 2.42
Net income per common share - diluted (dollars per share)	$ 0.65		$ 0.72		$ 4.72	$ 2.41
AVERAGE NUMBER OF SHARES OUTSTANDING-BASIC (shares)	345.9		354.3		349.8	354.2
AVERAGE NUMBER OF SHARES OUTSTANDING—DILUTED (shares)	347.4		355.5		351.3	355.3
Electric
OPERATING REVENUES
TOTAL OPERATING REVENUES	$ 2,303		$ 2,416		$ 4,840	$ 4,666
Gas
OPERATING REVENUES
TOTAL OPERATING REVENUES	571		643		2,001	1,893
OPERATING EXPENSES
Operating costs	99		205		567	649
Steam
OPERATING REVENUES
TOTAL OPERATING REVENUES	69		84		375	386
Non-utility
OPERATING REVENUES
TOTAL OPERATING REVENUES	1		272		131	530
Purchased power
OPERATING EXPENSES
Operating costs	495		633		1,198	1,120
Fuel
OPERATING EXPENSES
Operating costs	18		52		207	196
Other operations and maintenance
OPERATING EXPENSES
Operating costs	$ 849		$ 881		$ 1,744	$ 1,786