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Interest and Other Income and Other Expenses (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2017 | Mar. 31, 2016
Interest and other income: |  |
Interest and other income | $ 33 | $ 31
Other expenses: |  |
Total Edison International other expenses | (8) | (6)
Southern California Edison |  |
Interest and other income: |  |
Equity allowance for funds used during construction | 19 | 22
Increase in cash surrender value of life insurance policies | 12 | 7
Interest income | 1 | 0
Other | 1 | 2
Total SCE interest and other income | 33 | 31
Interest and other income | 33 | 31
Other expenses: |  |
Civic, political and related activities and donations | (4) | (5)
Other | (3) | 0
Total SCE other expenses | (7) | (5)
Total Edison International other expenses | (7) | (5)
Edison International Parent and Other |  |
Other expenses: |  |
Other expenses of Edison International Parent and Other | $ (1) | $ (1)

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- Definition This element represents civic, political and related activities and donations. + References No definition available. + Details
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- Definition This element represents the total other expenses of competitive power generation segment. + References No definition available. + Details
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- Definition This element represents the net change during the reporting period in cash surrender value of life insurance policies. + References No definition available. + Details
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- Definition This element represents other miscellaneous nonoperating income excluding competitive power generation. + References No definition available. + Details
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Namespace Prefix: | eix_
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- Definition -- None. No documentation exists for this element. -- + References No definition available. + Details
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- Definition -- None. No documentation exists for this element. -- + References No definition available. + Details
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- Definition This element represents the utility expenses not otherwise defined. + References No definition available. + Details
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Balance Type: | debit
Period Type: | duration

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- Definition This element represents the utility income not otherwise defined. + References No definition available. + Details
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Balance Type: | credit
Period Type: | duration

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- Definition Amount of interest income earned from interest bearing assets classified as other. + References No definition available. + Details
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- Definition Amount of expense related to nonoperating activities, classified as other. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.9) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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- Definition Amount of income related to nonoperating activities, classified as other. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.7) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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- Definition The component of the allowance for funds used during construction during the period based on an assumed rate of return on equity funds used in financing the construction of regulated assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 835 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6501569&loc=d3e55921-110430 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 835 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6501662&loc=d3e56162-110433 + Details
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- Details
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- Details
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