XML 133 R113.htm IDEA: XBRL DOCUMENT
v3.3.1.900

Schedule II - Valuation and Qualifying Accounts (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Movement in Valuation and Qualifying Accounts |  |  |  |  |  |  |
Balance at Beginning of Period |  | $ 72.2 |  | $ 70.0 |  | $ 126.1 |
Charged to Costs and Expenses |  | 46.9 |  | 43.8 |  | 55.3 |
Charged to Other Accounts |  | 0.0 |  | 0.0 |  | 0.0 |
Deductions | [1] | 47.8 |  | 41.6 |  | 111.4 |
Balance at End of Period |  | 71.3 |  | 72.2 |  | 70.0 |
Deferred tax assets, loss and credit carryforwards |  | 1,388.0 |  | 1,657.0 |  | 2,200.0 |
Customers |  |  |  |  |  |  |
Movement in Valuation and Qualifying Accounts |  |  |  |  |  |  |
Balance at Beginning of Period |  | 48.9 |  | 52.2 |  | 46.6 |
Charged to Costs and Expenses |  | 23.9 |  | 24.1 |  | 36.0 |
Charged to Other Accounts |  | 0.0 |  | 0.0 |  | 0.0 |
Deductions |  | 26.6 |  | 27.4 |  | 30.4 |
Balance at End of Period |  | 46.2 |  | 48.9 |  | 52.2 |
All others |  |  |  |  |  |  |
Movement in Valuation and Qualifying Accounts |  |  |  |  |  |  |
Balance at Beginning of Period |  | 23.3 |  | 17.8 |  | 79.5 |
Charged to Costs and Expenses |  | 23.0 |  | 19.7 |  | 19.3 |
Charged to Other Accounts |  | 0.0 |  | 0.0 |  | 0.0 |
Deductions |  | 21.2 |  | 14.2 |  | 81.0 |
Balance at End of Period |  | 25.1 |  | 23.3 |  | 17.8 |
Tax valuation allowance |  |  |  |  |  |  |
Movement in Valuation and Qualifying Accounts |  |  |  |  |  |  |
Balance at Beginning of Period |  | 29.0 | [2] | 1,380.0 | [2] | 1,016.5 |
Charged to Costs and Expenses |  | 3.0 |  | 0.0 | [2] | 363.5 | [2]
Charged to Other Accounts |  | 0.0 |  | 0.0 |  | 0.0 |
Deductions |  | 0.0 |  | 1,351.0 | [3] | 0.0 |
Balance at End of Period |  | 32.0 |  | 29.0 | [2] | 1,380.0 | [2]
Edison Mission Energy |  |  |  |  |  |  |
Movement in Valuation and Qualifying Accounts |  |  |  |  |  |  |
Deferred tax assets, loss and credit carryforwards |  |  |  |  |  | 1,600.0 |
Deferred income tax benefits, net |  |  |  |  |  | 220.0 |
Southern California Edison |  |  |  |  |  |  |
Movement in Valuation and Qualifying Accounts |  |  |  |  |  |  |
Balance at Beginning of Period |  | 67.6 |  | 65.5 |  | 74.9 |
Charged to Costs and Expenses |  | 41.9 |  | 43.7 |  | 55.3 |
Charged to Other Accounts |  | 0.0 |  | 0.0 |  | 0.0 |
Deductions | [4] | 47.8 |  | 41.6 |  | 64.7 |
Balance at End of Period |  | 61.7 |  | 67.6 |  | 65.5 |
Deferred tax assets, loss and credit carryforwards |  | 0.0 |  | 205.0 |  |  |
Southern California Edison | Customers |  |  |  |  |  |  |
Movement in Valuation and Qualifying Accounts |  |  |  |  |  |  |
Balance at Beginning of Period |  | 48.9 |  | 52.2 |  | 46.6 |
Charged to Costs and Expenses |  | 23.9 |  | 24.1 |  | 36.0 |
Charged to Other Accounts |  | 0.0 |  | 0.0 |  | 0.0 |
Deductions |  | 26.6 |  | 27.4 |  | 30.4 |
Balance at End of Period |  | 46.2 |  | 48.9 |  | 52.2 |
Southern California Edison | All others |  |  |  |  |  |  |
Movement in Valuation and Qualifying Accounts |  |  |  |  |  |  |
Balance at Beginning of Period |  | 18.7 |  | 13.3 |  | 28.3 |
Charged to Costs and Expenses |  | 18.0 |  | 19.6 |  | 19.3 |
Charged to Other Accounts |  | 0.0 |  | 0.0 |  | 0.0 |
Deductions |  | 21.2 |  | 14.2 |  | 34.3 |
Balance at End of Period |  | $ 15.5 |  | $ 18.7 |  | $ 13.3 |
[1] | Accounts written off, net.
[2] | Edison International recorded deferred tax assets of $2.2 billion related to net operating losses and tax carryforwards that pertain to Edison International's consolidated or combined federal and state tax returns, including approximately $1.6 billion related to EME. Edison International continues to consolidate EME for federal and certain combined state tax returns. EME's Plan of Reorganization, filed in December 2013 ("December Plan of Reorganization"), provides for the transfer of EIX's ownership interest to the creditors, which would result in a tax deconsolidation of EME. Under federal and state tax regulations, the tax deconsolidation of EME would reduce the amounts of net operating loss and tax credits carryforwards that Edison International would be eligible to use in future periods. As a result of the EME's December Plan of Reorganization, which would result in a tax deconsolidation of EME, Edison International has recorded a $1.380 billion valuation allowance based on the estimated amount of such benefits as calculated under the applicable federal and state tax regulations as of December 31, 2013. The deferred income tax benefits recognized by Edison International less the valuation allowance for amounts that would no longer be available upon tax deconsolidation of EME was approximately $220 million.
[3] | On April 1, 2014, under the Amended Plan of Reorganization, EME emerged from bankruptcy free of liabilities but remained an indirect wholly-owned subsidiary of Edison International, which will continue to be consolidated with Edison International for income tax purposes. Edison International anticipates realization of the federal and California tax benefits before they expire. Therefore, the valuation allowance on federal and California tax benefits that Edison International recorded in 2013 was released in 2014. The remaining valuation allowance is related to non California state tax benefits.
[4] | Accounts written off, net.

X
- Definition Deferred Tax Assets, Loss and credit carryforwards + References No definition available. + Details
Name: | eix_DeferredTaxAssetsLossAndCreditCarryforwards
Namespace Prefix: | eix_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, before jurisdictional netting. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 + Details
Name: | us-gaap_DeferredTaxAssetsLiabilitiesNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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_MovementInValuationAllowancesAndReservesRollForward
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 09 -Article 12 + Details
Name: | us-gaap_ValuationAllowancesAndReservesBalance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, charged to costs and expenses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 09 -Article 12 + Details
Name: | us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, charged to accounts other than costs and expenses in a given period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 09 -Article 12 + Details
Name: | us-gaap_ValuationAllowancesAndReservesChargedToOtherAccounts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Total of the deductions in a given period to allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, representing receivables written off as uncollectible and portions of the reserves utilized, respectively. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 09 -Article 12 + Details
Name: | us-gaap_ValuationAllowancesAndReservesDeductions
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_ValuationAllowancesAndReservesTypeAxis=eix_AllowanceForDoubtfulAccountsFromCustomersMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ValuationAllowancesAndReservesTypeAxis=eix_AllowanceForDoubtfulAccountsFromOthersMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ValuationAllowancesAndReservesTypeAxis=us-gaap_ValuationAllowanceOfDeferredTaxAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=eix_EdisonMissionEnergyMember
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: |