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Regulatory Assets and Liabilities (Tables) | 12 Months Ended
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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 | )

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- Definition Tabular disclosure of assets that are created when regulatory agencies permit public utilities to defer certain costs included in rate-setting to the balance sheet. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 340 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6499975&loc=d3e44250-110382 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 715 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6501251&loc=d3e52485-110419 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 340 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6499975&loc=d3e44264-110382 + Details
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- Definition Tabular disclosure of regulatory liabilities. Detailed information about liabilities that result from rate actions of a regulator. Rate actions of a regulator can impose a liability on a regulated enterprise resulting in a regulatory liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 405 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6500807&loc=d3e48068-110394 + Details
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