Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Total operating revenue	$ 12,320	$ 11,869	$ 11,524
Purchased power and fuel	4,873	4,527	4,266
Operation and maintenance	2,807	2,868	2,990
Depreciation and amortization	2,041	2,007	1,919
Property and other taxes	377	354	336
Impairment and other charges	738	21	5
Other operating income	(9)	0	0
Total operating expenses	10,827	9,777	9,516
Operating income	1,493	2,092	2,008
Interest and other income	146	123	174
Interest expense	(639)	(581)	(555)
Other expenses	(51)	(44)	(59)
Income from continuing operations before income taxes	949	1,590	1,568
Income tax expense	281	177	486
Income from continuing operations	668	1,413	1,082
Income from discontinued operations, net of tax	0	12	35
Net income	668	1,425	1,117
Preferred and preference stock dividend requirements of utility	124	123	113
Other noncontrolling interests	(21)	(9)	(16)
Net income from continuing operations available to common shareholders	565	1,311	1,020
Basic earnings per common share attributable to Edison International common shareholders:
Income from continuing operations, net of tax	565	1,299	985
Income from discontinued operations, net of tax	0	12	35
Net income from continuing operations available to common shareholders	$ 565	$ 1,311	$ 1,020
Basic earnings per common share attributable to Edison International common shareholders:
Weighted-average shares of common stock outstanding	326	326	326
Continuing operations (in dollars per share)	$ 1.73	$ 3.99	$ 3.02
Discontinued operations (in dollars per share)	0.00	0.03	0.11
Total (in dollars per share)	$ 1.73	$ 4.02	$ 3.13
Diluted earnings per common share attributable to Edison International common shareholders:
Weighted-average shares of common stock outstanding, including effect of dilutive securities	328	330	329
Continuing operations (in dollars per share)	$ 1.72	$ 3.94	$ 2.99
Discontinued operations (in dollars per share)	0.00	0.03	0.11
Total (in dollars per share)	1.72	3.97	3.10
Dividends declared per common share (in dollars per share)	$ 2.2325	$ 1.9825	$ 1.7325
Southern California Edison Company
Total operating revenue	$ 12,254	$ 11,830	$ 11,485
Purchased power and fuel	4,873	4,527	4,266
Operation and maintenance	2,671	2,737	2,890
Depreciation and amortization	2,032	1,998	1,915
Property and other taxes	372	351	334
Impairment and other charges	716	0	0
Other operating income	(8)	0	0
Total operating expenses	10,656	9,613	9,405
Operating income	1,598	2,217	2,080
Interest and other income	145	123	123
Interest expense	(589)	(541)	(526)
Other expenses	(48)	(44)	(59)
Income from continuing operations before income taxes	1,106	1,755	1,618
Income tax expense	(30)	256	507
Net income	1,136	1,499	1,111
Preferred and preference stock dividend requirements of utility	124	123	113
Net income from continuing operations available to common shareholders	1,012	1,376	998
Basic earnings per common share attributable to Edison International common shareholders:
Net income from continuing operations available to common shareholders	$ 1,012	$ 1,376	$ 998