Compensation and Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2017

Pension Plans

Defined Benefit Plan Disclosure [Line Items]

Expense Components for Plans

Net periodic pension expense components for continuing operations are:

	Three months ended September 30,						Nine months ended September 30,
(in millions)	2017			2016			2017			2016
Edison International:
Service cost	$	36		$	39		$	108		$	117
Interest cost	41			44			123			132
Expected return on plan assets	(53		)	(56		)	(159		)	(168		)
Settlement costs1	—			—			8			—
Amortization of prior service cost	—			1			2			3
Amortization of net loss2	4			9			14			27
Expense under accounting standards	$	28		$	37		$	96		$	111
Regulatory adjustment	(3		)	(9		)	(9		)	(27		)
Total expense recognized	$	25		$	28		$	87		$	84
SCE:
Service cost	$	35		$	38		$	105		$	114
Interest cost	37			41			111			123
Expected return on plan assets	(50		)	(53		)	(150		)	(159		)
Amortization of prior service cost	—			1			2			3
Amortization of net loss2	4			8			12			24
Expense under accounting standards	$	26		$	35		$	80		$	105
Regulatory adjustment	(3		)	(9		)	(9		)	(27		)
Total expense recognized	$	23		$	26		$	71		$	78

¹  Under GAAP, a settlement is recorded when lump-sum payments exceed estimated annual service and interest costs. Lump sum payments made in April 2017 to Edison International executives retiring in 2016 from the Executive Retirement Plan exceeded the estimated service and interest costs, resulting in a partial settlement of that plan. A settlement loss of approximately $7.7 million ($4.6 million after-tax) was recorded at Edison International in the second quarter of 2017.

²  Includes the amount of net loss reclassified from other comprehensive loss. The amount reclassified for Edison International and SCE was $3 million and $1 million, respectively, for the three months ended September 30, 2017, and $8 million and $4 million, respectively, for the nine months ended September 30, 2017. The amount reclassified for Edison International and SCE was $3 million and $2 million, respectively, for the three months ended September 30, 2016, and $9 million and $5 million, respectively, for the nine months ended September 30, 2016.

PBOP Plan

Defined Benefit Plan Disclosure [Line Items]

Expense Components for Plans

Net periodic PBOP expense components for continuing operations are:

	Three months ended September 30,						Nine months ended September 30,
(in millions)	2017			2016			2017			2016
Edison International:
Service cost	$	9		$	10		$	27		$	30
Interest cost	24			26			72			78
Expected return on plan assets	(27		)	(28		)	(81		)	(84		)
Amortization of prior service cost	—			(1		)	(2		)	(3		)
Total expense	$	6		$	7		$	16		$	21
SCE:
Service cost	$	9		$	10		$	27		$	30
Interest cost	24			26			72			78
Expected return on plan assets	(27		)	(28		)	(81		)	(84		)
Amortization of prior service cost	—			(1		)	(2		)	(3		)
Total expense	$	6		$	7		$	16		$	21