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Related Party Transactions (Tables) | 12 Months Ended
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Dec. 31, 2012
Related Party Transactions [Abstract] |
Summary of Related Party Transactions | EME amounts outstanding prior to December 17, 2012 were excluded from Edison International's table as these transactions were included and eliminated from Edison International's consolidated financial statements.
(in millions) |  |  | December 31, 2012
Edison International: |  |  |
Current receivables due from EME |  |  | $ | 2 |
Long-term income tax receivables due from EME 1 |  |  | 205 |
Total receivables due from unconsolidated affiliates |  |  | $ | 207 |
Current payables due to EME |  |  | $ | 11 |
Current income tax payables due to EME |  |  | 99 |
Long-term payables due to EME |  |  | 15 |
Long-term payables due to unconsolidated affiliates |  |  | 36 |
Total payables due to unconsolidated affiliates |  |  | $ | 161 |
| December 31,
(in millions) | 2012 |  | 2011
SCE: |  |  |
Current receivables due from various affiliates | $ | 12 |  |  | $ | 23 |
Long-term receivables due from Edison International Parent | 1 |  |  | 1 |
Total receivables due from unconsolidated affiliates | $ | 13 |  |  | $ | 24 |
Current payables due to various affiliates | $ | 7 |  |  | $ | 8 |
Long-term payable due to Edison International Parent 2 | 122 |  |  | — |
Total payables due to unconsolidated affiliates | $ | 129 |  |  | $ | 8 |
1 | Edison International Parent has recorded liabilities at December 31, 2012 of $183 million related to joint tax liabilities with EME. Under the tax allocation agreements, EME is obligated for such liabilities and, accordingly, Edison International has recorded a receivable from EME in this amount. See Note 18 for further information.
2 | Relates to certain SCE postretirement benefits transferred to Edison International Parent. See Note 8 for further information.

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- Definition Tabular disclosure of related party transactions. Examples of related party transactions include, but are not limited to, transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners and (d) affiliates. + References No definition available. + Details
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