Regulatory Assets and Liabilities (Tables)

12 Months Ended

Dec. 31, 2013

Regulatory Assets and Liabilities Disclosure [Abstract]

Regulatory Assets Included on the Consolidated Balance Sheets

SCE's regulatory assets included on the consolidated balance sheets are:

	December 31,
(in millions)	2013		2012
Current:
Regulatory balancing accounts	$	484	$	502
Energy derivatives	54		70
Total current	538		572
Long-term:
Deferred income taxes, net	2,957		2,663
Pensions and other postretirement benefits	369		1,550
Energy derivatives	816		900
Unamortized investments, net	332		507
San Onofre	1,325		—
Unamortized loss on reacquired debt	222		228
Nuclear-related investment, net	34		141
Regulatory balancing accounts	818		73
Other	368		360
Total long-term	7,241		6,422
Total regulatory assets	$	7,779	$	6,994

Regulatory Liabilities Included on the Consolidated Balance Sheets

SCE's regulatory liabilities included on the consolidated balance sheets are:

	December 31,
(in millions)	2013		2012
Current:
Regulatory balancing accounts	$	724	$	484
Other	43		52
Total current	767		536
Long-term:
Costs of removal	2,780		2,731
Asset retirement obligations	1,071		1,385
Regulatory balancing accounts	1,132		1,091
Other	12		7
Total long-term	4,995		5,214
Total regulatory liabilities	$	5,762	$	5,750

Schedule of Regulatory Balancing Accounts [Table Text Block]

The following table summarizes the significant components of regulatory balancing accounts included in the above tables of regulatory assets and liabilities:

	December 31,
(in millions)	2013			2012
Asset (liability)
Energy resource recovery account	$	1,005		$	(135	)
Four Corners memorandum account	145			25
New system generation balancing account	132			(21		)
Public purpose programs and energy efficiency programs	(1,037		)	(994		)
Base rate recovery balancing account	(247		)	505
Greenhouse gas auction revenue	(385		)	(109		)
FERC balancing accounts	(59		)	(129		)
Other	(108		)	(142		)
Asset (liability)	$	(554	)	$	(1,000	)