Compensation and Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2012

Pension Plans

Pension and Other Postretirement Benefits

Expense Components for Plans

Expense components are:

	Three months ended September 30,						Nine months ended September 30,
(in millions)	2012			2011			2012			2011
Service cost	$	49		$	43		$	135		$	129
Interest cost	49			52			147			156
Expected return on plan assets	(56		)	(60		)	(174		)	(180		)
Amortization of prior service cost	1			2			3			6
Amortization of net loss	21			6			57			18
Expense under accounting standards	64			43			168			129
Regulatory adjustment (deferred)	(57		)	(6		)	(3		)	(18		)
Total expense recognized	$	7		$	37		$	165		$	111

Postretirement Benefits Other Than Pensions

Pension and Other Postretirement Benefits

Expense Components for Plans

Expense components are:

	Three months ended September 30,						Nine months ended September 30,
(in millions)	2012			2011			2012			2011
Service cost	$	13		$	11		$	39		$	33
Interest cost	30			33			90			99
Expected return on plan assets	(27		)	(28		)	(81		)	(84		)
Special termination benefits1	3			—			3			—
Amortization of prior service credit	(9		)	(9		)	(27		)	(27		)
Amortization of net loss	12			9			36			27
Total expense	$	22		$	16		$	60		$	48

¹  Due to the reduction in the workforce at San Onofre, Edison International has incurred costs for enhanced retiree health care coverage. See below for further information.