Consolidated Statements of Income (Loss) - USD ($) shares in Millions, $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
REVENUES:
Total revenues	[1]	$ 2,963	$ 3,064	$ 8,362	$ 8,551
OPERATING EXPENSES:
Fuel		122	137	382	404
Purchased power		798	876	2,190	2,393
Other operating expenses		758	739	2,143	2,363
Provision for depreciation		304	283	910	843
Amortization (deferral) of regulatory assets, net		43	67	85	(188)
General taxes		257	252	757	746
Total operating expenses		2,282	2,354	6,467	6,561
OPERATING INCOME		681	710	1,895	1,990
OTHER INCOME (EXPENSE):
Miscellaneous income, net		57	49	191	164
Interest expense		(261)	(255)	(773)	(858)
Capitalized financing costs		19	16	53	47
Total other expense		(185)	(190)	(529)	(647)
INCOME BEFORE INCOME TAXES		496	520	1,366	1,343
INCOME TAXES		107	121	281	455
INCOME FROM CONTINUING OPERATIONS		389	399	1,085	888
Discontinued operations (Note 3)	[2]	2	(857)	(62)	322
NET INCOME (LOSS)		391	(458)	1,023	1,210
INCOME ALLOCATED TO PREFERRED STOCKHOLDERS (Note 4)		0	54	7	357
NET INCOME (LOSS) ATTRIBUTABLE TO COMMON STOCKHOLDERS		$ 391	$ (512)	$ 1,016	$ 853
EARNINGS PER SHARE OF COMMON STOCK (Note 4):
Basic - Continuing Operations (in dollars per share)		$ 0.72	$ 0.68	$ 2.02	$ 1.10
Basic - Discontinued Operations (in dollars per share)		0.01	(1.70)	(0.12)	0.66
Basic - Net Income Attributable to Common Stockholders (in dollars per share)		0.73	(1.02)	1.90	1.76
Diluted - Continuing Operations (in dollars per share)		0.72	0.68	2.00	1.09
Diluted - Discontinued Operations (in dollars per share)		0	(1.70)	(0.11)	0.66
Diluted - Net Income Attributable to Common Stockholders (in dollars per share)		$ 0.72	$ (1.02)	$ 1.89	$ 1.75
WEIGHTED AVERAGE NUMBER OF COMMON SHARES OUTSTANDING:
Basic, in shares		538	503	533	485
Diluted, in shares		542	505	541	487
Excise taxes collected		$ 100	$ 104	$ 283	$ 293
Income tax expense (benefit)		2	(342)	46	(1,200)
Distribution Services and Retail Generation [Member]
REVENUES:
Total revenues		2,411	2,463	6,651	6,807
Transmission [Member]
REVENUES:
Total revenues		371	341	1,090	996
Other [Member]
REVENUES:
Total revenues		$ 181	$ 260	$ 621	$ 748

[1] Includes excise and gross receipts tax collections of $100 million and $104 million during the three months ended September 30, 2019 and 2018, respectively, and $283 million and $293 million during the nine months ended September 30, 2019 and 2018, respectively.

[2] Net of income tax expense (benefits) of $2 million and $(342) million for the three months ended September 30, 2019 and 2018, respectively, and $46 million and $(1.2) billion for the nine months ended September 30, 2019 and 2018, respectively.