SAN ONOFRE NUCLEAR GENERATING STATION (Tables)

9 Months Ended

Sep. 30, 2019

Public Utilities, General Disclosures [Abstract]

Schedule of Nuclear Decommissioning Trusts Investments

The following table shows the fair values and gross unrealized gains and losses for the securities held in the NDT. We provide additional fair value disclosures for the NDT in Note 9.

NUCLEAR DECOMMISSIONING TRUSTS
(Dollars in millions)
	Cost		Gross unrealized gains		Gross unrealized losses			Estimated fair value
At September 30, 2019:
Debt securities:
Debt securities issued by the U.S. Treasury and other
U.S. government corporations and agencies(1)	$	51	$	—	$	—		$	51
Municipal bonds(2)	278		13		—			291
Other securities(3)	228		9		(1		)	236
Total debt securities	557		22		(1		)	578
Equity securities	170		309		(9		)	470
Cash and cash equivalents	1		—		—			1
Total	$	728	$	331	$	(10	)	$	1,049
At December 31, 2018:
Debt securities:
Debt securities issued by the U.S. Treasury and other
U.S. government corporations and agencies	$	52	$	1	$	—		$	53
Municipal bonds	266		4		(1		)	269
Other securities	238		1		(5		)	234
Total debt securities	556		6		(6		)	556
Equity securities	168		253		(10		)	411
Cash and cash equivalents	7		—		—			7
Total	$	731	$	259	$	(16	)	$	974

⁽¹⁾  Maturity dates are 2021-2050.

⁽²⁾  Maturity dates are 2020-2056.

⁽³⁾  Maturity dates are 2019-2060.

Schedule of Sales of Securities By Nuclear Decommissioning Trusts

The following table shows the proceeds from sales of securities in the NDT and gross realized gains and losses on those sales.

SALES OF SECURITIES IN THE NDT
(Dollars in millions)
	Three months ended September 30,						Nine months ended September 30,
	2019			2018			2019			2018
Proceeds from sales	$	231		$	216		$	728		$	703
Gross realized gains	5			3			18			32
Gross realized losses	(1		)	(1		)	(4		)	(6		)