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Schedule II - Valuation and Qualifying Accounts | 12 Months Ended
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Dec. 31, 2021
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] |
Schedule II - Valuation and Qualifying Accounts | EDISON INTERNATIONAL SCHEDULE II – VALUATION AND QUALIFYING ACCOUNTS ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | Additions | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Balance at | ​ | Charged to | ​ | Charged to | ​ | ​ | ​ | ​ | Balance at | ​
​ | ​ | Beginning of | ​ | Costs and | ​ | Other | ​ | ​ | ​ | ​ | End of | ​
(in millions) |  | Period |  | Expenses |  | Accounts |  | Deductions |  | Period | ​
For the Year ended December 31, 2021 |  | ​ |  |  | ​ |  |  | ​ |  | ​ | ​ |  | ​ | ​ |  | ​
Allowance for uncollectible accounts |  | ​ |  |  | ​ |  |  | ​ |  | ​ | ​ |  | ​ | ​ |  | ​
Customers | ​ | $ | 175 | ​ | $ | 33 | ​ | $ | 91 | ​ | $ | 6 | ​ | $ | 293 | ​
All others | ​ |  | 13 | ​ |  | 11 | ​ |  | — | ​ |  | 8 | ​ |  | 16 | ​
Total allowance for uncollectible amounts | ​ | $ | 188 | ​ | $ | 44 | ​ | $ | 91 | b | $ | 14 | a | $ | 309 | ​
Tax valuation allowance | ​ | $ | 35 | ​ | $ | 9 | c | $ | — | ​ | $ | — | ​ | $ | 44 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
For the Year ended December 31, 2020 | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​
Allowance for uncollectible accounts | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​
Customers | ​ | $ | 35 | ​ | $ | 36 | ​ | $ | 120 | ​ | $ | 16 | ​ | $ | 175 | ​
All others | ​ |  | 14 | ​ |  | 10 | ​ |  | — | ​ |  | 11 | ​ |  | 13 | ​
Total allowance for uncollectible amounts | ​ | $ | 49 | ​ | $ | 46 | ​ | $ | 120 | b | $ | 27 | a | $ | 188 | ​
Tax valuation allowance | ​ | $ | 35 | ​ | $ | — | ​ | $ | — | ​ | $ | — | ​ | $ | 35 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
For the Year ended December 31, 2019 | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​
Allowance for uncollectible accounts | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​
Customers | ​ | $ | 31 | ​ | $ | 22 | ​ | $ | — | ​ | $ | 18 | ​ | $ | 35 | ​
All others | ​ |  | 20 | ​ |  | 10 | ​ |  | — | ​ |  | 16 | ​ |  | 14 | ​
Total allowance for uncollectible amounts | ​ | $ | 51 | ​ | $ | 32 | ​ | $ | — | ​ | $ | 34 | a | $ | 49 | ​
Tax valuation allowance | ​ | $ | 36 | ​ | $ | — | ​ | $ | — | ​ | $ | 1 | ​ | $ | 35 | ​
a. | Accounts written off, net.
b. | Amounts are deferred to regulatory assets.
c. | During 2021, Edison International recorded additional valuation allowance of $3 million for non-California state net operating loss carryforwards and $6 million for federal and California charitable contributions carryover from 2017.
​ SOUTHERN CALIFORNIA EDISON COMPANY SCHEDULE II – VALUATION AND QUALIFYING ACCOUNTS ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | Additions | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Balance at | ​ | Charged to | ​ | Charged to | ​ | ​ | ​ | ​ | Balance at | ​
​ | ​ | Beginning of | ​ | Costs and | ​ | Other | ​ | ​ | ​ | ​ | End of | ​
(in millions) |  | Period |  | Expenses |  | Accounts |  | Deductions |  | Period | ​
For the Year ended December 31, 2021 |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  | ​ | ​ |  | ​
Allowance for uncollectible accounts |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  | ​ | ​ |  | ​
Customers | ​ | $ | 175 | ​ | $ | 33 | ​ | $ | 91 | ​ | $ | 6 | ​ | $ | 293 | ​
All others | ​ |  | 13 | ​ |  | 11 | ​ |  | — | ​ |  | 8 | ​ |  | 16 | ​
Total allowance for uncollectible accounts | ​ | $ | 188 | ​ | $ | 44 | ​ | $ | 91 | b | $ | 14 | a | $ | 309 | ​
Tax valuation allowance | ​ | $ | — | ​ | $ | 6 | c | $ | — | ​ | $ | — | ​ | $ | 6 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
For the Year ended December 31, 2020 | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​
Allowance for uncollectible accounts | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​
Customers | ​ | $ | 35 | ​ | $ | 36 | ​ | $ | 120 | ​ | $ | 16 | ​ | $ | 175 | ​
All others | ​ |  | 14 | ​ |  | 10 | ​ |  | — | ​ |  | 11 | ​ |  | 13 | ​
Total allowance for uncollectible accounts | ​ | $ | 49 | ​ | $ | 46 | ​ | $ | 120 | b | $ | 27 | a | $ | 188 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
For the Year ended December 31, 2019 | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​
Allowance for uncollectible accounts | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​
Customers | ​ | $ | 31 | ​ | $ | 22 | ​ | $ | — | ​ | $ | 18 | ​ | $ | 35 | ​
All others | ​ |  | 20 | ​ |  | 10 | ​ |  | — | ​ |  | 16 | ​ |  | 14 | ​
Total allowance for uncollectible accounts | ​ | $ | 51 | ​ | $ | 32 | ​ | $ | — | ​ | $ | 34 | a | $ | 49 | ​
a. | Accounts written off, net.
b. | Amounts are deferred to regulatory assets.
c. | Valuation allowance for SCE includes $6 million for federal and California charitable contribution carryover from 2017.
​

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- Definition The entire disclosure for valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690 + Details
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