Debt and Credit Agreements	3 Months Ended
Debt and Credit Agreements	Mar. 31, 2013
Debt Disclosure [Abstract]
Debt and Credit Agreements	Debt and Credit Agreements Long-Term Debt In March 2013, SCE issued $400 million of 3.90% first and refunding mortgage bonds due in 2043. The proceeds from these bonds were used to repay commercial paper borrowings and to fund SCE's capital program. Credit Agreements and Short-Term Debt At March 31, 2013, SCE's outstanding commercial paper was $404 million at a weighted-average interest rate of 0.32%. This commercial paper was supported by a $2.75 billion five-year revolving credit facility. At March 31, 2013, letters of credit issued under SCE's credit facility aggregated $121 million and are scheduled to expire in twelve months or less. At December 31, 2012, the outstanding commercial paper was $175 million at a weighted-average interest rate of 0.37%. At March 31, 2013, Edison International Parent's outstanding short-term debt was $16 million at a weighted-average interest rate of 1.485%. This short-term debt was supported by a $1.25 billion credit facility. At December 31, 2012, Edison International had no outstanding short-term debt.

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

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