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Preferred and Preference Stock of Utility (Textual) (Details) - USD ($) $ / shares in Units, $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Preferred and Preference Stock |  |  |
Preferred and Preference Stock of Utility |  |  |
Preferred stock, shares issued | 0 | 0 | 0
Preferred stock, shares redeemed | 0 | 0 | 0
Dividends payable | $ 12 | $ 14 | $ 18
SCE | Cumulative preferred stock $100 par value |  |  |
Preferred and Preference Stock of Utility |  |  |
Preferred stock, par value (in dollars per share) | $ 100 |  |
Preferred stock, shares authorized | 12,000,000 |  |
SCE | Cumulative preferred stock $25 par value |  |  |
Preferred and Preference Stock of Utility |  |  |
Preferred stock, par value (in dollars per share) | $ 25 |  |
Preferred stock, shares authorized | 24,000,000 |  |
SCE | No par value: |  |  |
Preferred and Preference Stock of Utility |  |  |
Preferred stock, shares authorized | 50,000,000 |  |
SCE | Preferred and Preference Stock |  |  |
Preferred and Preference Stock of Utility |  |  |
Dividends payable | $ 12 | $ 14 | $ 18
SCE | 5.45% Series K (cumulative) |  |  |
Preferred and Preference Stock of Utility |  |  |
Issuance of preference stock, during the period, value | $ 125 |  |

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- Definition Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(15)(5)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(24)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(20)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(15)(5)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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