Regulatory Assets and Liabilities (Tables)

12 Months Ended

Dec. 31, 2014

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)	2014		2013
Current:
Regulatory balancing accounts	$	1,088	$	484
Energy derivatives	159		54
Other	7		—
Total current	1,254		538
Long-term:
Deferred income taxes, net	3,405		2,957
Pensions and other postretirement benefits	1,218		369
Energy derivatives	850		816
Unamortized investments, net	255		332
San Onofre	1,288		1,325
Unamortized loss on reacquired debt	201		222
Regulatory balancing accounts	44		818
Other	351		402
Total long-term	7,612		7,241
Total regulatory assets	$	8,866	$	7,779

Regulatory Liabilities Included on the Consolidated Balance Sheets

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

	December 31,
(in millions)	2014		2013
Current:
Regulatory balancing accounts	$	380	$	724
Other	21		43
Total current	401		767
Long-term:
Costs of removal	2,826		2,780
Recoveries in excess of ARO liabilities1	1,956		1,071
Regulatory balancing accounts	1,083		1,132
Other	24		12
Total long-term	5,889		4,995
Total regulatory liabilities	$	6,290	$	5,762

Schedule of Regulatory Balancing Accounts

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)	2014			2013
Asset (liability)
Energy resource recovery account	$	1,028		$	1,005
Four Corners memorandum account	—			145
New system generation balancing account	35			132
Public purpose programs and energy efficiency programs	(874		)	(1,152		)
Base rate recovery balancing account	(5		)	(247		)
Greenhouse gas auction revenue	(182		)	(385		)
FERC balancing accounts	(32		)	(59		)
Generator settlements	(197		)	7
Other	(104		)	—
Liability	$	(331	)	$	(554	)