Other Investments (Tables) (Southern California Edison)

3 Months Ended

Mar. 31, 2015

Southern California Edison

Investment [Line Items]

Amortized Cost and Fair Value of the Trust Investments

The following table sets forth amortized cost and fair value of the trust investments:

	Longest Maturity Dates	Amortized Cost				Fair Value
(in millions)		March 31, 2015		December 31, 2014		March 31, 2015		December 31, 2014
Stocks	—	$	544	$	524	$	2,074	$	2,031
Municipal bonds	2054	679		681		826		822
U.S. government and agency securities	2045	1,127		777		1,207		836
Corporate bonds	2057	585		346		645		395
Short-term investments and receivables/payables1	One-year	139		692		144		715
Total		$	3,074	$	3,020	$	4,896	$	4,799

¹ Short-term investments include $92 million of repurchase agreements payable by financial institutions which earn interest, are fully secured by U.S. Treasury securities and mature by April 2, 2015.

Summary of Changes in the Fair Value of Trust

The following table sets forth a summary of changes in the fair value of the trust:

	Three months ended March 31,
(in millions)	2015			2014
Balance at beginning of period	$	4,799		$	4,494
Gross realized gains	27			10
Gross realized losses	(2		)	—
Unrealized gains, net	44			62
Other-than-temporary impairments	(4		)	(3		)
Interest and dividends	28			28
Contributions	7			5
Income taxes	—			(7		)
Administrative expenses and other	(3		)	(2		)
Balance at end of period	$	4,896		$	4,587