Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Total operating revenue	$ 2,960	$ 2,790
Purchased power and fuel	1,013	928
Operation and maintenance	844	881
Wildfire Insurance Fund expense	53	84
Depreciation and amortization	525	484
Property and other taxes	126	111
Total operating expenses	2,561	2,488
Operating income	399	302
Interest expense	(217)	(225)
Other income	72	52
Income before income taxes	254	129
Income tax benefit	(36)	(84)
Net income	290	213
Preferred and preference stock dividend requirements	4
Net income attributable to common shareholders	$ 259	$ 183
Basic earnings per share
Weighted average shares of common stock outstanding (in shares)	379	363
Basic earnings per common share attributable to Edison International common shareholders (in dollars per share)	$ 0.68	$ 0.50
Diluted earnings per share
Weighted average shares of common stock outstanding, including effect of dilutive securities (in shares)	380	364
Diluted earnings per common share attributable to Edison International common shareholders (in dollars per share)	$ 0.68	$ 0.50
SCE
Total operating revenue	$ 2,953	$ 2,780
Purchased power and fuel	1,013	928
Operation and maintenance	827	859
Wildfire Insurance Fund expense	53	84
Depreciation and amortization	524	483
Property and other taxes	125	110
Total operating expenses	2,542	2,464
Operating income	411	316
Interest expense	(184)	(194)
Other income	72	52
Income before income taxes	299	174
Income tax benefit	(24)	(75)
Net income	323	249
Preferred and preference stock dividend requirements	27	30
Net income attributable to common shareholders	$ 296	$ 219