Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
REVENUES:
Regulated Distribution		$ 2,352	$ 2,271	$ 4,928	$ 4,771
Regulated Transmission		341	327	664	640
Other		11	26	88	68
Total revenues(1)	[1]	2,704	2,624	5,680	5,479
OPERATING EXPENSES:
Fuel		177	163	364	367
Purchased power		698	650	1,523	1,441
Other operating expenses		705	675	1,667	1,332
Provision for depreciation		299	254	593	504
Amortization (deferral) of regulatory assets, net		(107)	78	(255)	161
General taxes		245	230	504	472
Total operating expenses		2,017	2,050	4,396	4,277
OPERATING INCOME		687	574	1,284	1,202
OTHER INCOME (EXPENSE):
Miscellaneous income, net		48	11	115	25
Interest expense		(369)	(248)	(619)	(493)
Capitalized financing costs		16	14	31	26
Total other expense		(305)	(223)	(473)	(442)
INCOME BEFORE INCOME TAXES		382	351	811	760
INCOME TAXES		115	132	367	284
INCOME FROM CONTINUING OPERATIONS		267	219	444	476
Discontinued operations (Note 3)(2)	[2]	32	(45)	1,224	(97)
NET INCOME		299	174	1,668	379
INCOME ALLOCATED TO PREFERRED STOCKHOLDERS (Note 4)		165	0	304	0
NET INCOME ATTRIBUTABLE TO COMMON STOCKHOLDERS		$ 134	$ 174	$ 1,364	$ 379
EARNINGS PER SHARE OF COMMON STOCK (Note 4):
Basic - Continuing Operations (in dollars per share)		$ 0.22	$ 0.49	$ 0.29	$ 1.07
Basic - Discontinued Operations (in dollars per share)		0.06	(0.10)	2.57	(0.21)
Basic - Net Income Attributable to Common Stockholders (in dollars per share)		0.28	0.39	2.86	0.86
Diluted - Continuing Operations (in dollars per share)		0.22	0.49	0.29	1.07
Diluted - Discontinued Operations (in dollars per share)		0.06	(0.10)	2.56	(0.22)
Diluted - Net Income Attributable to Common Stockholders (in dollars per share)		$ 0.28	$ 0.39	$ 2.85	$ 0.85
WEIGHTED AVERAGE NUMBER OF COMMON SHARES OUTSTANDING:
Basic, in shares		477	444	477	443
Diluted, in shares		479	445	478	444
DIVIDENDS DECLARED PER SHARE OF COMMON STOCK, in dollars per share		$ 0	$ 0	$ 0.72	$ 0.72
Excise taxes collected		$ 87	$ 91	$ 189	$ 191
Income tax expense (benefit)		$ 30	$ 15	$ 920	$ 41

[1] Includes excise tax collections of $87 million and $91 million in the three months ended June 30, 2018 and 2017, respectively, and $189 million and $191 million in the six months ended June 30, 2018 and 2017, respectively.

[2] Net of income tax benefits of $30 million and $15 million for the three months ended June 30, 2018 and 2017, respectively, and income tax benefits of $920 million and $41 million for the six months ended June 30, 2018 and 2017, respectively.