Consolidated Statements of Operations (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Operating revenue:
Total operating revenue	$ 6,968	$ 6,193	$ 19,113	$ 15,332
Energy:
Cost of sales	1,385	1,169	4,064	3,095
Operations and maintenance	1,001	1,033	2,972	2,564
Depreciation and amortization	946	789	2,797	2,323
Property and other taxes	194	152	593	456
Real estate	1,608	1,503	4,312	3,492
Total operating expenses	5,134	4,646	14,738	11,930
Operating income	1,834	1,547	4,375	3,402
Other income (expense):
Interest expense	(531)	(504)	(1,593)	(1,490)
Capitalized interest	18	24	46	60
Allowance for equity funds	34	50	90	122
Interest and dividend income	18	17	65	57
Gains on marketable securities, net	294	1,797	1,142	2,407
Other, net	8	36	64	61
Total other income (expense)	(159)	1,420	(186)	1,217
Income (loss) before income tax expense (benefit) and equity income (loss)	1,675	2,967	4,189	4,619
Income tax (benefit) expense	(355)	80	(563)	(111)
Equity loss	(5)	(41)	(234)	(91)
Net income	2,025	2,846	4,518	4,639
Net income attributable to noncontrolling interests	103	4	311	11
Net income (loss) attributable to parent	1,922	2,842	4,207	4,628
Preferred dividends	26	0	101	0
Earnings on common shares	1,896	2,842	4,106	4,628
Energy
Operating revenue:
Total operating revenue	5,225	4,451	14,375	11,504
Real estate
Operating revenue:
Total operating revenue	$ 1,743	$ 1,742	$ 4,738	$ 3,828