Note 14.Other InvestmentsNuclear Decommissioning TrustsFuture decommissioning costs of removal of nuclear assets are expected to be funded from independent decommissioningtrusts, which currently receive contributions of approximately $23 million per year through SCE customer rates.Contributions to the decommissioning trusts are reviewed every three years by the CPUC. If additional funds are needed fordecommissioning, it is probable that the additional funds will be recoverable through customer rates. Funds collected,together with accumulated earnings, will be utilized solely for decommissioning. The CPUC has set certain restrictionsrelated to the investments of these trusts.The following table sets forth amortized cost and fair value of the trust investments:Amortized CostFair Value(in millions)LongestMaturityDatesMarch 31,2012December 31,2011March 31,2012December 31,2011Stocks — $ 885 $ 865 $ 2,124 $ 1,899Municipal bonds 2051 574 625 696 756U.S. government and agency securities 2041 596 516 642 580Corporate bonds 2054 305 259 369 317Short-term investments and receivables/payables One-year 21 38 22 40Total $ 2,381 $ 2,303 $ 3,853 $ 3,592Trust fund earnings (based on specific identification) increase the trust fund balance and the ARO regulatory liability.Proceeds from sales of securities (which are reinvested) were $602 million and $622 million for the three months endedMarch 31, 2012 and 2011, respectively. Unrealized holding gains, net of losses, were $1.5 billion and $1.3 billion atMarch 31, 2012 and December 31, 2011, respectively.The following table sets forth a summary of changes in the fair value of the trust:Three months ended March 31,(in millions) 2012 2011Balance at beginning of period $ 3,592 $ 3,480Gross realized gains 25 23Gross realized losses (4) —Unrealized gains (losses) – net 184 <strong>10</strong>2Other-than-temporary impairments (5) (9)Interest, dividends, contributions and other 61 23Balance at end of period $ 3,853 $ 3,619Due to regulatory mechanisms, earnings and realized gains and losses (including other-than-temporary impairments) have noimpact on operating revenue or earnings.21
Note 15.Other Income and ExpensesOther income and expenses are as follows:Three months ended March 31,(in millions) 2012 2011Other income:Equity allowance for funds used during construction $ 20 $ 29Increase in cash surrender value of life insurance policies 7 7Other 4 2Total other income $ 31 $ 38Other expenses:Civic, political and related activities and donations $ 6 $ 7Other 3 6Total other expenses $ 9 $ 1322