Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Total operating revenue	$ 13,578	$ 12,347	$ 12,657
Purchased power and fuel	4,932	4,839	5,406
Operation and maintenance	3,609	3,018	2,797
Wildfire-related claims, net of insurance recoveries	1,328	255	2,669
Wildfire Insurance Fund expense	336	152	0
Depreciation and amortization	1,967	1,730	1,871
Property and other taxes	438	399	395
Impairment and other (income) expense	(116)	184	78
Gain on sale of lease interest and other operating income	(133)	(5)	(7)
Total operating expenses	12,361	10,572	13,209
Operating income (loss)	1,217	1,775	(552)
Interest expense	(902)	(841)	(734)
Other income	251	193	197
Income (loss) from continuing operations before income taxes	566	1,127	(1,089)
Income tax benefit	(305)	(278)	(739)
Income (loss) from continuing operations	871	1,405	(350)
Income from discontinued operations, net of tax	0	0	34
Net income (loss)	871	1,405	(316)
Preferred and preference stock dividend requirements of SCE	132	121	121
Other noncontrolling interests	0	0	(14)
Net income (loss)	739	1,284	(423)
Amounts attributable to Edison International common shareholders:
Income (loss) from continuing operations, net of tax	739	1,284	(457)
Income from discontinued operations, net of tax	0	0	34
Net income (loss) attributable to Edison International common shareholders	$ 739	$ 1,284	$ (423)
Basic earnings (loss) per common share attributable to Edison International common shareholders:
Weighted-average shares of common stock outstanding (in shares)	373	340	326
Continuing operations (in dollars per share)	$ 1.98	$ 3.78	$ (1.40)
Discontinued operations (in dollars per share)	0	0	0.10
Basic earnings (loss) per share (in dollars per share)	$ 1.98	$ 3.78	$ (1.30)
Diluted earnings (loss) per common share attributable to Edison International common shareholders:
Weighted-average shares of common stock outstanding, including effect of dilutive securities (in shares)	374	341	326
Continuing operations (in dollars per share)	$ 1.98	$ 3.77	$ (1.40)
Discontinued operations (in dollars per share)	0	0	0.10
Diluted earnings per common share attributable to Edison International common shareholders (in dollars per share)	$ 1.98	$ 3.77	$ (1.30)
SCE
Total operating revenue	$ 13,546	$ 12,306	$ 12,611
Purchased power and fuel	4,932	4,839	5,406
Operation and maintenance	3,523	2,936	2,702
Wildfire-related claims, net of insurance recoveries	1,328	255	2,669
Wildfire Insurance Fund expense	336	152	0
Depreciation and amortization	1,965	1,728	1,867
Property and other taxes	435	396	392
Impairment and other (income) expense	(150)	159	(12)
Other operating income	(1)	(4)	(7)
Total operating expenses	12,368	10,461	13,017
Operating income (loss)	1,178	1,845	(406)
Interest expense	(768)	(739)	(673)
Other income	255	195	194
Income (loss) from continuing operations before income taxes	665	1,301	(885)
Income tax benefit	(277)	(229)	(696)
Net income (loss)	942	1,530	(189)
Preferred and preference stock dividend requirements of SCE	132	121	121
Net income (loss) available for common stock	$ 810	$ 1,409	$ (310)