Investments (Tables)

9 Months Ended

Sep. 30, 2018

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 (see Note 4 for a discussion of fair value of the trust investments):

	Longest Maturity Dates	Amortized Cost				Fair Value
(in millions)		September 30, 2018		December 31, 2017		September 30, 2018		December 31, 2017
Stocks	—	*		$	236	$	1,600	$	1,596
Municipal bonds	2057	662		643		752		768
U.S. government and agency securities	2067	1,270		1,235		1,317		1,319
Corporate bonds	2050	565		579		607		643
Short-term investments and receivables/payables1	One-year	52		110		54		114
Total		$	2,549	$	2,803	$	4,330	$	4,440

* Effective January 1, 2018, SCE adopted an accounting standards update related to the classification and measurement of financial instruments in which equity investments are measured at fair value. See Note 1 for further information.

¹  Short-term investments include $79 million and $29 million of repurchase agreements payable by financial institutions which earn interest, are fully secured by U.S. Treasury securities and mature by October 1, 2018 and January 2, 2018 as of September 30, 2018 and December 31, 2017, respectively.