XML 29 R17.htm IDEA: XBRL DOCUMENT
v3.23.2

Investments | 6 Months Ended
--- | ---
Jun. 30, 2023
Investments |
Investments | Note 10. Investments Nuclear Decommissioning Trusts Future decommissioning costs related to SCE's nuclear assets are expected to be funded from independent decommissioning trusts. The following table sets forth amortized cost and fair value of the trust investments (see Note 4 for a discussion of fair value of the trust investments): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | Amortized Costs | ​ | Fair Values
​ | ​ | Longest | ​ | June 30, | ​ | December 31, | ​ | June 30, | ​ | December 31,
(in millions) |  | Maturity Dates |  | 2023 |  | 2022 |  | 2023 |  | 2022
Municipal bonds |  | 2061 |  | $ | 617 |  | $ | 672 | ​ | $ | 704 | ​ | $ | 754
Government and agency securities |  | 2073 |  | ​ | 1,151 |  | ​ | 1,025 | ​ |  | 1,222 | ​ |  | 1,091
Corporate bonds |  | 2070 |  | ​ | 386 |  | ​ | 351 | ​ |  | 414 | ​ |  | 377
Short-term investments and receivables/payables1 |  | One-year |  | ​ | 146 |  | ​ | 110 | ​ |  | 154 | ​ |  | 116
Total debt securities and other | ​ | ​ | ​ | $ | 2,300 | ​ | $ | 2,158 | ​ | ​ | 2,494 | ​ | ​ | 2,338
Equity securities |  | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | 1,632 | ​ | ​ | 1,610
Total |  |  | ​ | ​ | ​ | ​ | ​ | ​ | ​ | $ | 4,126 | ​ | $ | 3,948
1 | Short-term investments included $9 million and $41 million of repurchase agreements payable by financial institutions which earn interest, were fully and 97% secured by U.S. Treasury securities and mature by July 3, 2023 and January 3, 2023 as of June 30, 2023 and December 31, 2022, respectively.
Trust fund earnings (based on specific identification) increase the trust fund balance and the asset retirement obligation ("ARO") regulatory liability. Unrealized holding gains, net of losses, were $1.6 billion at both June 30, 2023 and December 31, 2022. Trust assets are used to pay income taxes arising from trust investing activity. Deferred tax liabilities related to net unrealized gains were $352 million and $321 million at June 30, 2023 and December 31, 2022, respectively. Accordingly, the fair value of trust assets available to pay future decommissioning costs, net of deferred income taxes, totaled $3.8 billion and $3.6 billion at June 30, 2023 and December 31, 2022, respectively. The following table summarizes the gains and losses for the trust investments: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended June 30, | ​ | Six months ended June 30,
(in millions) |  | 2023 |  | 2022 |  | 2023 |  | 2022
Gross realized gains | ​ | $ | 124 | ​ | $ | 74 | ​ | $ | 195 | ​ | $ | 89
Gross realized losses | ​ |  | (8) | ​ |  | (45) | ​ |  | (31) | ​ |  | (61)
Net unrealized (losses)/gains for equity securities | ​ |  | (11) | ​ |  | (332) | ​ |  | 64 | ​ |  | (432)
​ Due to regulatory mechanisms, changes in assets of the trusts from income or loss items do not materially affect earnings. Edison International Parent and Other's Investments Edison International Parent and Other hold strategic investments in companies focused on developing electric technologies and services, included as "Other investments" on Edison International's consolidated balance sheets. As of June 30, 2023 and December 31, 2022, these investments consist of $1 million and $5 million of marketable securities, respectively, and $12 million of equity investments without readily determinable fair values at both dates. For further information of fair value and unrealized gains/(losses) of marketable securities, which are recorded in "Other income" on Edison Internationals' consolidated statements of income, see Note 4 and Note 15, respectively. The equity investments without readily determinable fair values balances included cumulative upward adjustments of $9 million at both June 30, 2023 and December 31, 2022. The cumulative upward adjustments resulted primarily from values determined by additional capital infusions.

X
- Definition The entire disclosure for investments in certain debt and equity securities. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//320/tableOfContent Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-10 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6B -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-6B Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6B -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-6B Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1403 -Paragraph (b) -Publisher SEC Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//946-320/tableOfContent Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 940 -SubTopic 320 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//940-320/tableOfContent Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 320 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//942-320/tableOfContent + Details
Name: | us-gaap_InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_RegulatedEntityOtherAssetsNoncurrentAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration