CONSOLIDATED INCOME STATEMENT (UNAUDITED) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
OPERATING REVENUES
Total operating revenues	$ 3,415	$ 2,971	$ 7,475	$ 6,648
OPERATING EXPENSES
Depreciation and amortization	539	502	1,068	1,000
Taxes, other than income taxes	718	672	1,471	1,375
TOTAL OPERATING EXPENSES	3,028	2,553	6,290	5,369
OPERATING INCOME	387	418	1,185	1,279
OTHER INCOME (DEDUCTIONS)
Investment income (loss)	5	(24)	10	(185)
Other income	113	7	196	14
Allowance for equity funds used during construction	5	5	10	10
Other deductions	(34)	(38)	(35)	(76)
TOTAL OTHER INCOME (DEDUCTIONS)	89	(50)	181	(237)
INCOME BEFORE INTEREST AND INCOME TAX EXPENSE	476	368	1,366	1,042
INTEREST EXPENSE (INCOME)
Interest on long-term debt	242	230	482	458
Other interest expense (income)	(32)	35	(87)	(14)
Allowance for borrowed funds used during construction	(5)	(4)	(8)	(8)
NET INTEREST EXPENSE	205	261	387	436
INCOME BEFORE INCOME TAX EXPENSE	271	107	979	606
INCOME TAX EXPENSE (BENEFIT)	17	(11)	171	68
NET INCOME	254	118	808	538
Loss attributable to non-controlling interest	(1)	(47)	(49)	(46)
NET INCOME	$ 255	$ 165	$ 857	$ 584
Net income per common share - basic (dollars per share)	$ 0.72	$ 0.48	$ 2.42	$ 1.70
Net income per common share - diluted (dollars per share)	$ 0.72	$ 0.48	$ 2.41	$ 1.70
AVERAGE NUMBER OF SHARES OUTSTANDING-BASIC (shares)	354.3	345.4	354.2	344.0
AVERAGE NUMBER OF SHARES OUTSTANDING—DILUTED (shares)	355.5	346.2	355.3	344.8
Electric
OPERATING REVENUES
Total operating revenues	$ 2,416	$ 2,115	$ 4,666	$ 4,228
Gas
OPERATING REVENUES
Total operating revenues	643	490	1,893	1,566
OPERATING EXPENSES
Operating costs	205	83	649	379
Steam
OPERATING REVENUES
Total operating revenues	84	74	386	338
Non-utility
OPERATING REVENUES
Total operating revenues	272	292	530	516
Purchased power
OPERATING EXPENSES
Operating costs	633	463	1,120	900
Fuel
OPERATING EXPENSES
Operating costs	52	29	196	122
Other operations and maintenance
OPERATING EXPENSES
Operating costs	$ 881	$ 804	$ 1,786	$ 1,593