XML 59 R47.htm IDEA: XBRL DOCUMENT
v3.19.2

Consolidated Statements of Changes in Equity (Details) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 30, 2019 | Mar. 31, 2019 | Jun. 30, 2018 | Mar. 31, 2018 | Jun. 30, 2019 | Jun. 30, 2018 | Jan. 01, 2019 | Jan. 01, 2018
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Balance, at the beginning of the period | $ 12,719 | $ 12,652 | $ 13,889 | $ 13,866 | $ 12,652 | $ 13,866 |  |
Net income | 422 | 308 | 298 | 245 |  |  |  |
Net income | 422 |  | 298 |  | 730 | 540 |  |
Other comprehensive income | 1 | 2 | 2 | 2 |  |  |  |
Contribution from tax equity investor |  |  | 24 |  |  |  |  |
Cumulative effect of accounting changes |  |  |  |  |  |  | $ 0 | $ 5
Common stock dividends declared | (200) | (200) | (197) | (197) |  |  |  |
Dividends to noncontrolling interests | (30) | (30) | (30) | (30) |  |  |  |
Stock-based compensation | (4) | (18) | (4) | (8) |  |  |  |
Noncash stock-based compensation | 5 | 5 | 6 | 5 |  |  |  |
Deconsolidation of SoCore Energy |  |  | (15) |  |  |  |  |
Other |  |  | (1) | 1 |  |  |  |
Balance, at the end of the period | $ 12,913 | $ 12,719 | $ 13,972 | $ 13,889 | 12,913 | 13,972 |  |
Dividends declared per common share (in dollars per share) | $ 0.6125 | $ 0.6125 | $ 0.6050 | $ 0.6050 |  |  |  |
Minimum |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Preferred stock dividends (in dollars per share) | 0.255 | 0.255 | 0.255 | 0.255 |  |  |  |
Preference stock dividends (in dollars per share) | 15.625 | 15.625 | 15.625 | 15.625 |  |  |  |
Maximum |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Preferred stock dividends (in dollars per share) | 0.299 | 0.299 | 0.299 | 0.299 |  |  |  |
Preference stock dividends (in dollars per share) | $ 35.936 | $ 35.936 | $ 35.936 | $ 35.936 |  |  |  |
Common Stock |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Balance, at the beginning of the period | $ 2,550 | $ 2,545 | $ 2,531 | $ 2,526 | 2,545 | 2,526 |  |
Noncash stock-based compensation | 5 | 5 | 6 | 5 |  |  |  |
Balance, at the end of the period | 2,555 | 2,550 | 2,537 | 2,531 | 2,555 | 2,537 |  |
Accumulated Other Comprehensive Loss |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Balance, at the beginning of the period | (58) | (50) | (46) | (43) | (50) | (43) |  |
Other comprehensive income | 1 | 2 | 2 | 2 |  |  |  |
Cumulative effect of accounting changes |  |  |  |  |  |  | (10) | (5)
Balance, at the end of the period | (57) | (58) | (44) | (46) | (57) | (44) |  |
Retained Earnings |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Balance, at the beginning of the period | 8,034 | 7,964 | 9,211 | 9,188 | 7,964 | 9,188 |  |
Net income | 392 | 278 | 276 | 218 |  |  |  |
Cumulative effect of accounting changes |  |  |  |  |  |  | 10 | 10
Common stock dividends declared | (200) | (200) | (197) | (197) |  |  |  |
Stock-based compensation | (4) | (18) | (4) | (8) |  |  |  |
Balance, at the end of the period | 8,222 | 8,034 | 9,286 | 9,211 | 8,222 | 9,286 |  |
Subtotal |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Balance, at the beginning of the period | 10,526 | 10,459 | 11,696 | 11,671 | 10,459 | 11,671 |  |
Net income | 392 | 278 | 276 | 218 |  |  |  |
Other comprehensive income | 1 | 2 | 2 | 2 |  |  |  |
Cumulative effect of accounting changes |  |  |  |  |  |  |  | 5
Common stock dividends declared | (200) | (200) | (197) | (197) |  |  |  |
Stock-based compensation | (4) | (18) | (4) | (8) |  |  |  |
Noncash stock-based compensation | 5 | 5 | 6 | 5 |  |  |  |
Balance, at the end of the period | 10,720 | 10,526 | 11,779 | 11,696 | 10,720 | 11,779 |  |
Noncontrolling Interests, Other |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Balance, at the beginning of the period |  |  | 0 | 2 |  | 2 |  |
Net income |  |  | (8) | (3) |  |  |  |
Contribution from tax equity investor |  |  | 24 |  |  |  |  |
Deconsolidation of SoCore Energy |  |  | (15) |  |  |  |  |
Other |  |  | (1) | 1 |  |  |  |
Balance, at the end of the period |  |  | 0 | 0 |  | 0 |  |
Noncontrolling Interests, Preferred and Preference Stock |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Balance, at the beginning of the period | 2,193 | 2,193 | 2,193 | 2,193 | 2,193 | 2,193 |  |
Net income | 30 | 30 | 30 | 30 |  |  |  |
Dividends to noncontrolling interests | (30) | (30) | (30) | (30) |  |  |  |
Balance, at the end of the period | 2,193 | 2,193 | 2,193 | 2,193 | 2,193 | 2,193 |  |
Southern California Edison |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Balance, at the beginning of the period | 13,870 | 13,785 | 14,748 | 14,672 | 13,785 | 14,672 |  |
Net income | 449 | 323 | 327 | 316 | 772 | 643 |  |
Other comprehensive income | 1 | 1 | 1 | 2 |  |  |  |
Capital contribution from Edison International Parent |  |  |  |  | 1,200 |  |  |
Cumulative effect of accounting changes |  |  |  |  |  |  | 0 | 0
Common stock dividends declared |  | (200) | (100) | (212) |  |  |  |
Dividends declared on preferred and preference stock | (30) | (30) | (30) | (30) |  |  |  |
Stock-based compensation | (1) | (12) | (3) | (2) |  |  |  |
Noncash stock-based compensation | 3 | 3 | 3 | 2 |  |  |  |
Balance, at the end of the period | $ 15,492 | $ 13,870 | $ 14,946 | $ 14,748 | 15,492 | 14,946 |  |
Dividends declared per common share (in dollars per share) |  | $ 0.4599 | $ 0.2299 | $ 0.4875 |  |  |  |
Southern California Edison | Minimum |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Preferred stock dividends (in dollars per share) | $ 0.255 | 0.255 | 0.255 | 0.255 |  |  |  |
Preference stock dividends (in dollars per share) | 15.625 | 15.625 | 15.625 | 15.625 |  |  |  |
Southern California Edison | Maximum |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Preferred stock dividends (in dollars per share) | 0.299 | 0.299 | 0.299 | 0.299 |  |  |  |
Preference stock dividends (in dollars per share) | $ 35.936 | $ 35.936 | $ 35.936 | $ 35.936 |  |  |  |
Southern California Edison | Preferred and Preference Stock |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Balance, at the beginning of the period | $ 2,245 | $ 2,245 | $ 2,245 | $ 2,245 | 2,245 | 2,245 |  |
Balance, at the end of the period | 2,245 | 2,245 | 2,245 | 2,245 | 2,245 | 2,245 |  |
Southern California Edison | Common stock |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Balance, at the beginning of the period | 2,168 | 2,168 | 2,168 | 2,168 | 2,168 | 2,168 |  |
Balance, at the end of the period | 2,168 | 2,168 | 2,168 | 2,168 | 2,168 | 2,168 |  |
Southern California Edison | Additional Paid-in Capital |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Balance, at the beginning of the period | 683 | 680 | 673 | 671 | 680 | 671 |  |
Capital contribution from Edison International Parent |  |  |  |  | 1,200 |  |  |
Noncash stock-based compensation | 3 | 3 | 3 | 2 |  |  |  |
Balance, at the end of the period | 1,886 | 683 | 676 | 673 | 1,886 | 676 |  |
Southern California Edison | Accumulated Other Comprehensive Loss |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Balance, at the beginning of the period | (27) | (23) | (22) | (19) | (23) | (19) |  |
Other comprehensive income | 1 | 1 | 1 | 2 |  |  |  |
Cumulative effect of accounting changes |  |  |  |  |  |  | (5) | (5)
Balance, at the end of the period | (26) | (27) | (21) | (22) | (26) | (21) |  |
Southern California Edison | Retained Earnings |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Balance, at the beginning of the period | 8,801 | 8,715 | 9,684 | 9,607 | 8,715 | 9,607 |  |
Net income | 449 | 323 | 327 | 316 |  |  |  |
Cumulative effect of accounting changes |  |  |  |  |  |  | $ 5 | $ 5
Common stock dividends declared |  | (200) | (100) | (212) |  |  |  |
Dividends declared on preferred and preference stock | (30) | (30) | (30) | (30) |  |  |  |
Stock-based compensation | (1) | (12) | (3) | (2) |  |  |  |
Noncash stock-based compensation |  |  |  |  | 0 |  |  |
Balance, at the end of the period | $ 9,219 | $ 8,801 | $ 9,878 | $ 9,684 | $ 9,219 | $ 9,878 |  |

X
- Definition Adjustments to Additional Paid in Capital, Contributed Capital + References No definition available. + Details
Name: | eix_AdjustmentstoAdditionalPaidinCapitalContributedCapital
Namespace Prefix: | eix_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Aggregate cash, stock, and paid-in-kind dividends declared for preferred and preference shareholders during the period. + References No definition available. + Details
Name: | eix_DividendsDeclaredOnPreferredAndPreferenceStockNotSubjectToMandatoryRedemption
Namespace Prefix: | eix_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Excluding Mezzanine Equity + References No definition available. + Details
Name: | eix_NetIncomeLossIncludingPortionAttributabletoNoncontrollingInterestExcludingMezzanineEquity
Namespace Prefix: | eix_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Other Comprehensive Income (Loss), Excluding Cumulative Effects, Net of Tax + References No definition available. + Details
Name: | eix_OtherComprehensiveIncomeLossExcludingCumulativeEffectsNetofTax
Namespace Prefix: | eix_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Preference Stock, Dividends per Share, Declared + References No definition available. + Details
Name: | eix_PreferenceStockDividendsperShareDeclared
Namespace Prefix: | eix_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of increase to additional paid-in capital (APIC) for recognition of cost for award under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 20 -Section 55 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=118258462&loc=d3e11149-113907 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5047-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 20 -Section 55 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=118258462&loc=d3e11178-113907 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 35 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=116855982&loc=d3e4534-113899 + Details
Name: | us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Aggregate dividends declared during the period for each share of common stock outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
Name: | us-gaap_CommonStockDividendsPerShareDeclared
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption. + References No definition available. + Details
Name: | us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of paid and unpaid common stock dividends declared with the form of settlement in cash. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
Name: | us-gaap_DividendsCommonStockCash
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
Name: | us-gaap_IncreaseDecreaseInStockholdersEquityRollForward
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Decrease in noncontrolling interest balance from payment of dividends or other distributions by the non-wholly owned subsidiary or partially owned entity, included in the consolidation of the parent entity, to the noncontrolling interest holders. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
Name: | us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of the reduction or elimination during the period of a noncontrolling interest resulting from the parent's loss of control and deconsolidation of the entity in which one or more outside parties had a noncontrolling interest. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
Name: | us-gaap_NoncontrollingInterestDecreaseFromDeconsolidation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of increase in noncontrolling interest from subsidiary issuance of equity interests to noncontrolling interest holders. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=108774443&loc=SL4569655-111683 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
Name: | us-gaap_NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Aggregate dividends declared during the period for each share of preferred stock outstanding. + References No definition available. + Details
Name: | us-gaap_PreferredStockDividendsPerShareDeclared
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669619-108580 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1B -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669625-108580 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 6: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4J -URI http://asc.fasb.org/extlink&oid=116874947&loc=SL4591551-111686 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3000-108585 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=108774443&loc=SL4569616-111683 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599 Reference 10: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4K -URI http://asc.fasb.org/extlink&oid=116874947&loc=SL4591552-111686 + Details
Name: | us-gaap_ProfitLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Value, after forfeiture, of shares issued under share-based payment arrangement. Excludes employee stock ownership plan (ESOP). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5047-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
Name: | us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=108774443&loc=SL4568740-111683 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4I -URI http://asc.fasb.org/extlink&oid=116874947&loc=SL4590271-111686 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=108774443&loc=SL4568447-111683 + Details
Name: | us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition This element represents movements included in the statement of changes in stockholders' equity which are not separately disclosed or provided for elsewhere in the taxonomy. + References No definition available. + Details
Name: | us-gaap_StockholdersEquityOther
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_CommonStockIncludingAdditionalPaidInCapitalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_AccumulatedOtherComprehensiveIncomeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_RetainedEarningsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_ParentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=eix_NoncontrollingInterestOtherMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=eix_NoncontrollingInterestPreferredandPreferenceStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=eix_SouthernCaliforniaEdisonCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_PreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_CommonStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_AdditionalPaidInCapitalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |