Interest and Other Income and Expenses (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Other income:
Total consolidated other income	$ 124	$ 149	$ 147
Other expenses:
Total consolidated other expenses	74	52	55
Southern California Edison
Other income:
Equity allowance for funds used during construction	72	96	96
Increase in cash surrender value of life insurance policies	30	27	26
Interest income	10	7	5
Other	10	14	13
Total other income	122	144	140
Total consolidated other income	122	144	140
Other expenses:
Civic, political and related activities and donations	37	32	30
Penalties	20	0	0
Other	17	18	25
Total SCE other expenses	74	50	55
Total consolidated other expenses	74	50	55
Total penalties assessed	37
Penalties allocated to remediation and pole studies	17
Edison International
Other income:
Other income	2	5	7
Other expenses:
Other expenses	$ 0	$ 2	$ 0