Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Total operating revenue	$ 3,315	$ 2,987	$ 6,275	$ 5,777
Purchased power and fuel	1,283	1,068	2,296	1,996
Operation and maintenance	754	762	1,598	1,643
Wildfire Insurance Fund expense	54	83	107	167
Depreciation and amortization	533	489	1,058	973
Property and other taxes	117	103	243	214
Other operating income, net of impairment	(11)	(18)	(11)	(18)
Total operating expenses	2,730	2,487	5,291	4,975
Operating income	585	500	984	802
Interest expense	(232)	(229)	(449)	(454)
Other income	76	81	148	133
Income before income taxes	429	352	683	481
Income tax expense (benefit)	68	4	32	(80)
Net income	361	348	651	561
Preferred and preference stock dividend requirements	17		21
Net income attributable to common shareholders	$ 318	$ 318	$ 577	$ 501
Basic earnings per share
Weighted average shares of common stock outstanding (in shares)	380	375	379	367
Basic earnings per common share attributable to Edison International common shareholders (in dollars per share)	$ 0.84	$ 0.85	$ 1.52	$ 1.37
Diluted earnings per share
Weighted average shares of common stock outstanding, including effect of dilutive securities (in shares)	380	376	380	368
Diluted earnings per common share attributable to Edison International common shareholders (in dollars per share)	$ 0.84	$ 0.85	$ 1.52	$ 1.36
SCE
Total operating revenue	$ 3,306	$ 2,980	$ 6,259	$ 5,760
Purchased power and fuel	1,283	1,068	2,296	1,996
Operation and maintenance	735	741	1,562	1,600
Wildfire Insurance Fund expense	54	83	107	167
Depreciation and amortization	533	489	1,057	972
Property and other taxes	117	103	242	213
Other operating income, net of impairment	(11)	(52)	(11)	(52)
Total operating expenses	2,711	2,432	5,253	4,896
Operating income	595	548	1,006	864
Interest expense	(198)	(193)	(382)	(387)
Other income	64	82	136	134
Income before income taxes	461	437	760	611
Income tax expense (benefit)	76	26	52	(49)
Net income	385	411	708	660
Preferred and preference stock dividend requirements	26	30	53	60
Net income attributable to common shareholders	$ 359	$ 381	$ 655	$ 600