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Schedule I - Condensed Financial Information of Parent (Details) (USD $) Share data in Millions, except Per Share data, unless otherwise specified | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Dec. 31, 2012 | Sep. 30, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2011 | Sep. 30, 2011 | Jun. 30, 2011 | Mar. 31, 2011 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009
Assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents | $ 170,000,000 |  |  |  |  |  |  |  | $ 1,469,000,000 |  |  |  | $ 170,000,000 |  | $ 1,469,000,000 | $ 1,389,000,000 |
Other current assets | 119,000,000 |  |  |  |  |  |  |  | 73,000,000 |  |  |  | 119,000,000 |  | 73,000,000 |  |
Total current assets | 2,672,000,000 |  |  |  |  |  |  |  | 4,484,000,000 |  |  |  | 2,672,000,000 |  | 4,484,000,000 |  |
Investments in subsidiaries | 2,000,000 |  |  |  |  |  |  |  | 2,000,000 |  |  |  | 2,000,000 |  | 2,000,000 |  |
Other | 704,000,000 |  |  |  |  |  |  |  | 486,000,000 |  |  |  | 704,000,000 |  | 486,000,000 |  |
Total assets | 44,394,000,000 |  |  |  |  |  |  |  | 48,039,000,000 |  |  |  | 44,394,000,000 |  | 48,039,000,000 |  |
Liabilities and Shareholders' Equity: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accounts payable | 1,423,000,000 |  |  |  |  |  |  |  | 1,321,000,000 |  |  |  | 1,423,000,000 |  | 1,321,000,000 |  |
Other current liabilities | 990,000,000 |  |  |  |  |  |  |  | 794,000,000 |  |  |  | 990,000,000 |  | 794,000,000 |  |
Total current liabilities | 3,744,000,000 |  |  |  |  |  |  |  | 4,348,000,000 |  |  |  | 3,744,000,000 |  | 4,348,000,000 |  |
Long-term debt | 9,231,000,000 |  |  |  |  |  |  |  | 8,834,000,000 |  |  |  | 9,231,000,000 |  | 8,834,000,000 |  |
Common stockholders' equity | 11,191,000,000 |  |  |  |  |  |  |  | 11,086,000,000 |  |  |  | 11,191,000,000 |  | 11,086,000,000 | 11,494,000,000 | 11,006,000,000
Total liabilities and equity | 44,394,000,000 |  |  |  |  |  |  |  | 48,039,000,000 |  |  |  | 44,394,000,000 |  | 48,039,000,000 |  |
Condensed Statements of Income: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenue and other income | 3,060,000,000 |  | 3,734,000,000 |  | 2,653,000,000 |  | 2,415,000,000 |  | 2,517,000,000 | 3,389,000,000 | 2,449,000,000 | 2,233,000,000 | 11,862,000,000 |  | 10,588,000,000 | 9,996,000,000 |
Operating expenses and interest expense |  |  |  |  |  |  |  |  |  |  |  |  | 9,577,000,000 |  | 8,527,000,000 | 8,177,000,000 |
Loss before equity in earnings of subsidiaries | 765,000,000 |  | 714,000,000 |  | 420,000,000 |  | 389,000,000 |  | 440,000,000 | 755,000,000 | 434,000,000 | 433,000,000 | 2,285,000,000 |  | 2,061,000,000 | 1,819,000,000 |
Equity in earnings (loss) of subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  | 1,000,000 |  | 0 | 2,000,000 |
Income tax expense (benefit) |  |  |  |  |  |  |  |  |  |  |  |  | 267,000,000 |  | 568,000,000 | 335,000,000 |
Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest | 812,000,000 | [1],[2] | 382,000,000 | [1],[2] | 207,000,000 | [1],[2] | 196,000,000 | [1],[2] | 236,000,000 | 408,000,000 | 223,000,000 | 234,000,000 | 1,594,000,000 | [1],[2] | 1,100,000,000 | 1,144,000,000 |
Income (loss) from discontinued operations, net of tax | (1,326,000,000) | [3] | (167,000,000) | [3] | (109,000,000) | [3] | (84,000,000) | [3] | (1,060,000,000) | 33,000,000 | (32,000,000) | (20,000,000) | (1,686,000,000) | [3] | (1,078,000,000) | 164,000,000 |
Net income (loss) |  |  |  |  |  |  |  |  |  |  |  |  | (92,000,000) |  | 22,000,000 | 1,308,000,000 |
Other comprehensive income (loss) |  |  |  |  |  |  |  |  |  |  |  |  | 52,000,000 |  | (63,000,000) | (113,000,000) |
Comprehensive income (loss) |  |  |  |  |  |  |  |  |  |  |  |  | (131,000,000) |  | (100,000,000) | 1,143,000,000 |
Weighted-average shares of common stock outstanding (in shares) |  |  |  |  |  |  |  |  |  |  |  |  | 326 |  | 326 | 326 |
Basic earnings (loss) per share – continuing operations (in dollars per share) | $ 2.42 |  | $ 1.09 |  | $ 0.57 |  | $ 0.54 |  | $ 0.68 | $ 1.21 | $ 0.64 | $ 0.67 | $ 4.61 |  | $ 3.20 | $ 3.34 |
Basic earnings (loss) per share – discontinued operations (in dollars per share) | $ (4.07) |  | $ (0.51) |  | $ (0.34) |  | $ (0.26) |  | $ (3.25) | $ 0.10 | $ (0.10) | $ (0.06) | $ (5.17) |  | $ (3.31) | $ 0.50 |
Total (in dollars per share) | $ (1.65) |  | $ 0.58 |  | $ 0.23 |  | $ 0.28 |  | $ (2.57) | $ 1.31 | $ 0.54 | $ 0.61 | $ (0.56) |  | $ (0.11) | $ 3.84 |
Diluted earnings (loss) per share – continuing operations (in dollars per share) | $ 2.39 |  | $ 1.09 |  | $ 0.55 |  | $ 0.54 |  | $ 0.66 | $ 1.20 | $ 0.64 | $ 0.67 | $ 4.55 |  | $ 3.17 | $ 3.32 |
Diluted earnings (loss) per share – discontinued operations (in dollars per share) | $ (4.03) |  | $ (0.51) |  | $ (0.33) |  | $ (0.26) |  | $ (3.22) | $ 0.10 | $ (0.10) | $ (0.06) | $ (5.11) |  | $ (3.28) | $ 0.50 |
Total (in dollars per share) | $ (1.64) |  | $ 0.58 |  | $ 0.22 |  | $ 0.28 |  | $ (2.56) | $ 1.30 | $ 0.54 | $ 0.61 | $ (0.56) |  | $ (0.11) | $ 3.82 |
Condensed Statements of Cash Flows: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net cash provided by operating activities |  |  |  |  |  |  |  |  |  |  |  |  | 3,334,000,000 |  | 3,906,000,000 | 3,477,000,000 |
Cash flows from financing activities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt issued |  |  |  |  |  |  |  |  |  |  |  |  | 395,000,000 |  | 896,000,000 | 1,535,000,000 |
Long-term debt issuance costs |  |  |  |  |  |  |  |  |  |  |  |  | (4,000,000) |  | (9,000,000) | (19,000,000) |
Short-term debt financing, net |  |  |  |  |  |  |  |  |  |  |  |  | (264,000,000) |  | 410,000,000 | (66,000,000) |
Settlements of stock-based compensation, net |  |  |  |  |  |  |  |  |  |  |  |  | (68,000,000) |  | (15,000,000) | (13,000,000) |
Dividends paid |  |  |  |  |  |  |  |  |  |  |  |  | (424,000,000) |  | (417,000,000) | (411,000,000) |
Net cash provided by financing activities |  |  |  |  |  |  |  |  |  |  |  |  | 650,000,000 |  | 1,107,000,000 | 1,053,000,000 |
Net cash provided by investing activities: |  |  |  |  |  |  |  |  |  |  |  |  | (5,283,000,000) |  | (4,933,000,000) | (4,814,000,000) |
Net increase in cash and cash equivalents |  |  |  |  |  |  |  |  |  |  |  |  | (1,299,000,000) |  | 80,000,000 | (284,000,000) |
Cash and cash equivalents at beginning of year |  |  |  |  |  |  | 1,469,000,000 |  |  |  |  | 1,389,000,000 | 1,469,000,000 |  | 1,389,000,000 | 1,673,000,000 |
Cash and cash equivalents at end of year | 170,000,000 |  |  |  |  |  |  |  | 1,469,000,000 |  |  |  | 170,000,000 |  | 1,469,000,000 | 1,389,000,000 |
Debt and Credit Agreements |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term debt | 175,000,000 |  |  |  |  |  |  |  | 429,000,000 |  |  |  | 175,000,000 |  | 429,000,000 |  |
Consolidated debt to total capitalization, ratio | 0.65 |  |  |  |  |  |  |  |  |  |  |  | 0.65 |  |  |  |
Senior Notes Due 2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt and Credit Agreements |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate on debt (as a percent) | 3.75% |  |  |  |  |  |  |  |  |  |  |  | 3.75% |  |  |  |
Senior notes | 400,000,000 |  |  |  |  |  |  |  |  |  |  |  | 400,000,000 |  |  |  |
Revolving credit facility maturing in May 2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt and Credit Agreements |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Credit facility termination period |  |  |  |  | 5 years |  |  |  |  |  |  |  |  |  |  |  |
Commitment | 1,250,000,000 |  |  |  |  |  |  |  |  |  |  |  | 1,250,000,000 |  |  |  |
Outstanding borrowings | 0 |  |  |  |  |  |  |  |  |  |  |  | 0 |  |  |  |
Amount available | 1,250,000,000 |  |  |  |  |  |  |  |  |  |  |  | 1,250,000,000 |  |  |  |
Edison International |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents | 64,000,000 |  |  |  |  |  |  |  | 28,000,000 |  |  |  | 64,000,000 |  | 28,000,000 | 21,000,000 |
Other current assets | 18,000,000 |  |  |  |  |  |  |  | 236,000,000 |  |  |  | 18,000,000 |  | 236,000,000 |  |
Total current assets | 82,000,000 |  |  |  |  |  |  |  | 264,000,000 |  |  |  | 82,000,000 |  | 264,000,000 |  |
Investments in subsidiaries | 9,903,000,000 |  |  |  |  |  |  |  | 10,511,000,000 |  |  |  | 9,903,000,000 |  | 10,511,000,000 |  |
Deferred income tax | 555,000,000 |  |  |  |  |  |  |  | 150,000,000 |  |  |  | 555,000,000 |  | 150,000,000 |  |
Other | 414,000,000 |  |  |  |  |  |  |  | 192,000,000 |  |  |  | 414,000,000 |  | 192,000,000 |  |
Total assets | 10,954,000,000 |  |  |  |  |  |  |  | 11,117,000,000 |  |  |  | 10,954,000,000 |  | 11,117,000,000 |  |
Liabilities and Shareholders' Equity: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accounts payable | 105,000,000 |  |  |  |  |  |  |  | 4,000,000 |  |  |  | 105,000,000 |  | 4,000,000 |  |
Other current liabilities | 184,000,000 |  |  |  |  |  |  |  | 448,000,000 |  |  |  | 184,000,000 |  | 448,000,000 |  |
Total current liabilities | 289,000,000 |  |  |  |  |  |  |  | 452,000,000 |  |  |  | 289,000,000 |  | 452,000,000 |  |
Long-term debt | 400,000,000 |  |  |  |  |  |  |  | 400,000,000 |  |  |  | 400,000,000 |  | 400,000,000 |  |
Other | 833,000,000 |  |  |  |  |  |  |  | 210,000,000 |  |  |  | 833,000,000 |  | 210,000,000 |  |
Common stockholders' equity | 9,432,000,000 |  |  |  |  |  |  |  | 10,055,000,000 |  |  |  | 9,432,000,000 |  | 10,055,000,000 |  |
Total liabilities and equity | 10,954,000,000 |  |  |  |  |  |  |  | 11,117,000,000 |  |  |  | 10,954,000,000 |  | 11,117,000,000 |  |
Condensed Statements of Income: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenue and other income |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  | 0 | 0 |
Operating expenses and interest expense |  |  |  |  |  |  |  |  |  |  |  |  | 80,000,000 |  | 63,000,000 | 56,000,000 |
Loss before equity in earnings of subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  | (80,000,000) |  | (63,000,000) | (56,000,000) |
Equity in earnings (loss) of subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  | 1,590,000,000 |  | 1,077,000,000 | 1,098,000,000 |
Income before income taxes |  |  |  |  |  |  |  |  |  |  |  |  | 1,510,000,000 |  | 1,014,000,000 | 1,042,000,000 |
Income tax expense (benefit) |  |  |  |  |  |  |  |  |  |  |  |  | 7,000,000 |  | (27,000,000) | (50,000,000) |
Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest |  |  |  |  |  |  |  |  |  |  |  |  | 1,503,000,000 |  | 1,041,000,000 | 1,092,000,000 |
Income (loss) from discontinued operations, net of tax |  |  |  |  |  |  |  |  |  |  |  |  | (1,686,000,000) |  | (1,078,000,000) | 164,000,000 |
Net income (loss) |  |  |  |  |  |  |  |  |  |  |  |  | (183,000,000) |  | (37,000,000) | 1,256,000,000 |
Other comprehensive income (loss) |  |  |  |  |  |  |  |  |  |  |  |  | 52,000,000 |  | (63,000,000) | (113,000,000) |
Comprehensive income (loss) |  |  |  |  |  |  |  |  |  |  |  |  | (131,000,000) |  | (100,000,000) | 1,143,000,000 |
Weighted-average shares of common stock outstanding (in shares) |  |  |  |  |  |  |  |  |  |  |  |  | 326 |  | 326 | 326 |
Basic earnings (loss) per share – continuing operations (in dollars per share) |  |  |  |  |  |  |  |  |  |  |  |  | $ 4.61 |  | $ 3.20 | $ 3.34 |
Basic earnings (loss) per share – discontinued operations (in dollars per share) |  |  |  |  |  |  |  |  |  |  |  |  | $ (5.17) |  | $ (3.31) | $ 0.50 |
Total (in dollars per share) |  |  |  |  |  |  |  |  |  |  |  |  | $ (0.56) |  | $ (0.11) | $ 3.84 |
Diluted earnings (loss) per share – continuing operations (in dollars per share) |  |  |  |  |  |  |  |  |  |  |  |  | $ 4.55 |  | $ 3.17 | $ 3.32 |
Diluted earnings (loss) per share – discontinued operations (in dollars per share) |  |  |  |  |  |  |  |  |  |  |  |  | $ (5.11) |  | $ (3.28) | $ 0.50 |
Total (in dollars per share) |  |  |  |  |  |  |  |  |  |  |  |  | $ (0.56) |  | $ (0.11) | $ 3.82 |
Condensed Statements of Cash Flows: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net cash provided by operating activities |  |  |  |  |  |  |  |  |  |  |  |  | 355,000,000 |  | 437,000,000 | 90,000,000 |
Cash flows from financing activities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt issued |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  | 0 | 399,000,000 |
Long-term debt issuance costs |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  | 0 | (3,000,000) |
Payable due to consolidated affiliate |  |  |  |  |  |  |  |  |  |  |  |  | 130,000,000 |  | 0 | 0 |
Short-term debt financing, net |  |  |  |  |  |  |  |  |  |  |  |  | (15,000,000) |  | (9,000,000) | (66,000,000) |
Settlements of stock-based compensation, net |  |  |  |  |  |  |  |  |  |  |  |  | (10,000,000) |  | (5,000,000) | (6,000,000) |
Dividends paid |  |  |  |  |  |  |  |  |  |  |  |  | (424,000,000) |  | (417,000,000) | (411,000,000) |
Net cash provided by financing activities |  |  |  |  |  |  |  |  |  |  |  |  | (319,000,000) |  | (431,000,000) | (87,000,000) |
Net cash provided by investing activities: |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  | 1,000,000 | 0 |
Net increase in cash and cash equivalents |  |  |  |  |  |  |  |  |  |  |  |  | 36,000,000 |  | 7,000,000 | 3,000,000 |
Cash and cash equivalents at beginning of year |  |  |  |  |  |  | 28,000,000 |  |  |  |  | 21,000,000 | 28,000,000 |  | 21,000,000 | 18,000,000 |
Cash and cash equivalents at end of year | 64,000,000 |  |  |  |  |  |  |  | 28,000,000 |  |  |  | 64,000,000 |  | 28,000,000 | 21,000,000 |
Dividends [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Minimum percentage of weighted-average common equity component authorization, set by CPUC (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  | 48.00% |  |  |  |
Cash dividends received from consolidated subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  | 469,000,000 |  | 461,000,000 | 300,000,000 |
Debt and Credit Agreements |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated debt to total capitalization, ratio | 0.46 |  |  |  |  |  |  |  |  |  |  |  | 0.46 |  |  |  |
Related Party Transactions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current receivables due from affiliates | 23,000,000 |  |  |  |  |  |  |  | 219,000,000 |  |  |  | 23,000,000 |  | 219,000,000 |  |
Current payables due to affiliates | 146,000,000 |  |  |  |  |  |  |  | 106,000,000 |  |  |  | 146,000,000 |  | 106,000,000 |  |
Long-term receivables due from affiliate | 322,000,000 |  |  |  |  |  |  |  |  |  |  |  | 322,000,000 |  |  |  |
Long-term payables due to affiliates | 112,000,000 |  |  |  |  |  |  |  | 98,000,000 |  |  |  | 112,000,000 |  | 98,000,000 |  |
Edison International | Revolving credit facility maturing in May 2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt and Credit Agreements |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term debt |  |  |  |  |  |  |  |  | 10,000,000 |  |  |  |  |  | 10,000,000 |  |
Weighted average interest rate (as a percent) |  |  |  |  |  |  |  |  | 0.66% |  |  |  |  |  | 0.66% |  |
Amount available | 1,250,000,000 |  |  |  |  |  |  |  |  |  |  |  | 1,250,000,000 |  |  |  |
Southern California Edison |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents | 45,000,000 |  |  |  |  |  |  |  | 57,000,000 |  |  |  | 45,000,000 |  | 57,000,000 | 257,000,000 |
Other current assets | 123,000,000 |  |  |  |  |  |  |  | 89,000,000 |  |  |  | 123,000,000 |  | 89,000,000 |  |
Total current assets | 2,562,000,000 |  |  |  |  |  |  |  | 2,612,000,000 |  |  |  | 2,562,000,000 |  | 2,612,000,000 |  |
Other | 531,000,000 |  |  |  |  |  |  |  | 491,000,000 |  |  |  | 531,000,000 |  | 491,000,000 |  |
Total assets | 44,034,000,000 |  |  |  |  |  |  |  | 40,315,000,000 |  |  |  | 44,034,000,000 |  | 40,315,000,000 |  |
Liabilities and Shareholders' Equity: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accounts payable | 1,297,000,000 |  |  |  |  |  |  |  | 1,319,000,000 |  |  |  | 1,297,000,000 |  | 1,319,000,000 |  |
Other current liabilities | 861,000,000 |  |  |  |  |  |  |  | 670,000,000 |  |  |  | 861,000,000 |  | 670,000,000 |  |
Total current liabilities | 3,513,000,000 |  |  |  |  |  |  |  | 3,848,000,000 |  |  |  | 3,513,000,000 |  | 3,848,000,000 |  |
Long-term debt | 8,828,000,000 |  |  |  |  |  |  |  | 8,431,000,000 |  |  |  | 8,828,000,000 |  | 8,431,000,000 |  |
Common stockholders' equity | 11,743,000,000 |  |  |  |  |  |  |  | 9,958,000,000 |  |  |  | 11,743,000,000 |  | 9,958,000,000 | 9,207,000,000 | 8,715,000,000
Total liabilities and equity | 44,034,000,000 |  |  |  |  |  |  |  | 40,315,000,000 |  |  |  | 44,034,000,000 |  | 40,315,000,000 |  |
Condensed Statements of Income: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenue and other income | 3,057,000,000 |  | 3,731,000,000 |  | 2,651,000,000 |  | 2,412,000,000 |  | 2,514,000,000 | 3,386,000,000 | 2,446,000,000 | 2,232,000,000 | 11,851,000,000 |  | 10,577,000,000 | 9,983,000,000 |
Operating expenses and interest expense |  |  |  |  |  |  |  |  |  |  |  |  | 9,572,000,000 |  | 8,454,000,000 | 8,119,000,000 |
Loss before equity in earnings of subsidiaries | 792,000,000 |  | 659,000,000 |  | 430,000,000 |  | 397,000,000 |  | 474,000,000 | 764,000,000 | 443,000,000 | 443,000,000 | 2,279,000,000 |  | 2,123,000,000 | 1,864,000,000 |
Income tax expense (benefit) |  |  |  |  |  |  |  |  |  |  |  |  | 214,000,000 |  | 601,000,000 | 440,000,000 |
Net income (loss) | 858,000,000 | [1],[2] | 388,000,000 | [1],[2] | 214,000,000 | [1],[2] | 201,000,000 | [1],[2] | 262,000,000 | 421,000,000 | 226,000,000 | 236,000,000 | 1,660,000,000 | [1],[2] | 1,144,000,000 | 1,092,000,000 |
Other comprehensive income (loss) |  |  |  |  |  |  |  |  |  |  |  |  | (5,000,000) |  | 1,000,000 | (6,000,000) |
Condensed Statements of Cash Flows: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net cash provided by operating activities |  |  |  |  |  |  |  |  |  |  |  |  | 4,086,000,000 |  | 3,261,000,000 | 3,386,000,000 |
Cash flows from financing activities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt issued |  |  |  |  |  |  |  |  |  |  |  |  | 395,000,000 |  | 896,000,000 | 1,135,000,000 |
Long-term debt issuance costs |  |  |  |  |  |  |  |  |  |  |  |  | (4,000,000) |  | (9,000,000) | (16,000,000) |
Short-term debt financing, net |  |  |  |  |  |  |  |  |  |  |  |  | (250,000,000) |  | 419,000,000 | 0 |
Settlements of stock-based compensation, net |  |  |  |  |  |  |  |  |  |  |  |  | (57,000,000) |  | (10,000,000) | (5,000,000) |
Dividends paid |  |  |  |  |  |  |  |  |  |  |  |  | (551,000,000) |  | (520,000,000) | (352,000,000) |
Net cash provided by financing activities |  |  |  |  |  |  |  |  |  |  |  |  | 256,000,000 |  | 799,000,000 | 503,000,000 |
Net cash provided by investing activities: |  |  |  |  |  |  |  |  |  |  |  |  | (4,354,000,000) |  | (4,260,000,000) | (4,094,000,000) |
Net increase in cash and cash equivalents |  |  |  |  |  |  |  |  |  |  |  |  | (12,000,000) |  | (200,000,000) | (205,000,000) |
Cash and cash equivalents at beginning of year |  |  |  |  |  |  | 57,000,000 |  |  |  |  | 257,000,000 | 57,000,000 |  | 257,000,000 | 462,000,000 |
Cash and cash equivalents at end of year | 45,000,000 |  |  |  |  |  |  |  | 57,000,000 |  |  |  | 45,000,000 |  | 57,000,000 | 257,000,000 |
Dividends [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted-average common equity component authorization, set by CPUC remaining over number of months (in months) |  |  |  |  |  |  |  |  |  |  |  |  | 13 months |  |  |  |
Period for calculation of weighted average common equity component (months) |  |  |  |  |  |  |  |  |  |  |  |  | 13 months |  |  |  |
Weighted-average common equity component of total capitalization (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  | 48.60% |  |  |  |
Restriction on net assets | 11,600,000,000 |  |  |  |  |  |  |  |  |  |  |  | 11,600,000,000 |  |  |  |
Capacity to pay additional dividends |  |  |  |  |  |  |  |  |  |  |  |  | 125,000,000 |  |  |  |
Debt and Credit Agreements |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term debt | 175,000,000 |  |  |  |  |  |  |  | 419,000,000 |  |  |  | 175,000,000 |  | 419,000,000 |  |
Southern California Edison | Revolving credit facility maturing in May 2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt and Credit Agreements |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Credit facility termination period |  |  |  |  | 5 years |  |  |  |  |  |  |  |  |  |  |  |
Commitment | 2,750,000,000 |  |  |  |  |  |  |  |  |  |  |  | 2,750,000,000 |  |  |  |
Outstanding borrowings | (175,000,000) |  |  |  |  |  |  |  |  |  |  |  | (175,000,000) |  |  |  |
Amount available | 2,413,000,000 |  |  |  |  |  |  |  |  |  |  |  | 2,413,000,000 |  |  |  |
Southern California Edison | Edison International |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transactions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expenses from services provided by SCE |  |  |  |  |  |  |  |  |  |  |  |  | 4,000,000 |  | 3,000,000 | 3,000,000 |
Edison Mission Energy |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investments in subsidiaries | 0 |  |  |  |  |  |  |  |  |  |  |  | 0 |  |  |  |
Edison Mission Energy | Edison International |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transactions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Impairment and other charges, after tax | $ 1,258,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
[1] | During the fourth quarter of 2012, SCE corrected errors, primarily related to deferred taxes, that resulted in a net earnings benefit of $33 million which were not considered material to the current and prior period consolidated financial statements.
[2] | During the fourth quarter of 2012, SCE implemented the 2012 GRC Decision which resulted in an earnings impact of approximately $500 million.
[3] | During the fourth quarter of 2012, Edison International recorded a full impairment of its $1.2 billion investment in EME. See Note 17 for further information.

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