SAN ONOFRE NUCLEAR GENERATING STATION (Tables)

3 Months Ended

Mar. 31, 2022

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 on the Sempra and SDG&E Condensed Consolidated Balance Sheets. 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
	March 31, 2022
Debt securities:
Debt securities issued by the U.S. Treasury and other U.S. government corporations and agencies(1)	$	51	$	1	$	(1)	$	51
Municipal bonds(2)	309		3		(8)		304
Other securities(3)	264		2		(12)		254
Total debt securities	624		6		(21)		609
Equity securities	99		234		(4)		329
Short-term investments, primarily cash equivalents	3		—		—		3
Receivables (payables), net	5		—		—		5
Total	$	731	$	240	$	(25)	$	946
	December 31, 2021
Debt securities:
Debt securities issued by the U.S. Treasury and other U.S. government corporations and agencies	$	56	$	—	$	—	$	56
Municipal bonds	309		13		(1)		321
Other securities	255		7		(2)		260
Total debt securities	620		20		(3)		637
Equity securities	104		262		(2)		364
Short-term investments, primarily cash equivalents	3		—		—		3
Receivables (payables), net	8		—		—		8
Total	$	735	$	282	$	(5)	$	1,012

(1)    Maturity dates are 2023-2052.

(2)    Maturity dates are 2022-2056.

(3)    Maturity dates are 2022-2072.

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 NUCLEAR DECOMMISSIONING TRUSTS
(Dollars in millions)
	Three months ended March 31,
	2022		2021
Proceeds from sales	$	242	$	288
Gross realized gains	11		21
Gross realized losses	(4)		(2)