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Consolidated Statements of Changes in Equity - USD ($) $ in Millions | Total | Southern California Edison Company | Common Stock | Common Stock Southern California Edison Company | Additional Paid-in Capital Southern California Edison Company | Accumulated Other Comprehensive Loss | Accumulated Other Comprehensive Loss Southern California Edison Company | Retained Earnings | Retained Earnings Southern California Edison Company | Equity Attributable to Common Shareholders | Other | Preferred and Preference Stock | Preferred and Preference Stock Southern California Edison Company
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Balance, at the beginning of the period at Dec. 31, 2014 | $ 12,982 | $ 13,282 | $ 2,445 | $ 2,168 | $ 618 | $ (58) | $ (28) | $ 8,573 | $ 8,454 | $ 10,960 | $ 0 | $ 2,022 | $ 2,070
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |
Net income | 1,133 | 1,111 |  |  |  |  |  | 1,020 | 1,111 | 1,020 |  | 113 |
Other comprehensive income (loss) | 2 | 6 |  |  |  | 2 | 6 |  |  | 2 |  |  |
Dividends declared on common stock | (564) | (611) |  |  |  |  |  | (564) | (611) | (564) |  |  |
Dividends declared on preferred and preference stock |  | (113) |  |  |  |  |  |  | (113) |  |  |  |
Dividends and distributions to noncontrolling interests and other | (113) |  |  |  |  |  |  |  |  |  |  | (113) |
Stock-based compensation and other | (70) | (10) | 15 |  | 23 |  |  | (85) | (33) | (70) |  |  |
Noncash stock-based compensation and other | 24 | 13 | 24 |  | 13 |  |  |  | 0 | 24 |  |  |
Issuance of preference stock | 319 | 319 |  |  | (6) |  |  |  |  |  |  | 319 | 325
Redemption of preference stock | (325) | (325) |  |  | 4 |  |  | (4) | (4) | (4) |  | (321) | (325)
Balance, at the end of the period at Dec. 31, 2015 | 13,388 | 13,672 | 2,484 | 2,168 | 652 | (56) | (22) | 8,940 | 8,804 | 11,368 | 0 | 2,020 | 2,070
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |
Net income | 1,434 | 1,499 |  |  |  |  |  | 1,311 | 1,499 | 1,311 |  | 123 |
Other comprehensive income (loss) | 3 | 2 |  |  |  | 3 | 2 |  |  | 3 |  |  |
Dividends declared on common stock | (646) | (701) |  |  |  |  |  | (646) | (701) | (646) |  |  |
Dividends declared on preferred and preference stock |  | (123) |  |  |  |  |  |  | (123) |  |  |  |
Dividends and distributions to noncontrolling interests and other | (123) |  |  |  |  |  |  |  |  |  |  | (123) |
Stock-based compensation and other | (60) | (44) | (1) |  |  |  |  | (59) | (44) | (60) |  |  |
Noncash stock-based compensation and other | 22 | 9 | 22 |  | 9 |  |  |  |  | 22 |  |  |
Issuance of preference stock | 294 | 294 |  |  | (6) |  |  |  |  |  |  | 294 | 300
Redemption of preference stock | (125) | (125) |  |  | 2 |  |  | (2) | (2) | (2) |  | (123) | (125)
Balance, at the end of the period at Dec. 31, 2016 | 14,187 | 14,483 | 2,505 | 2,168 | 657 | (53) | (20) | 9,544 | 9,433 | 11,996 | 0 | 2,191 | 2,245
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |
Net income | 671 | 1,136 |  |  |  |  |  | 565 | 1,136 | 565 | (18) | 124 |
Other comprehensive income (loss) | 10 | 1 |  |  |  | 10 | 1 |  |  | 10 |  |  |
Contribution from tax equity investor | 20 |  |  |  |  |  |  |  |  |  | 20 |  |
Dividends declared on common stock | (727) | (785) |  |  |  |  |  | (727) | (785) | (727) |  |  |
Dividends declared on preferred and preference stock |  | (124) |  |  |  |  |  |  | (124) |  |  |  |
Dividends and distributions to noncontrolling interests and other | (124) |  |  |  |  |  |  |  |  |  |  | (124) |
Stock-based compensation and other | (179) | (38) |  |  |  |  |  | (179) | (38) | (179) |  |  |
Noncash stock-based compensation and other | 21 | 12 | 21 |  | 12 |  |  |  |  | 21 |  |  |
Issuance of preference stock | 462 | 462 |  |  | (13) |  |  |  |  |  |  | 462 | 475
Redemption of preference stock | (475) | (475) |  |  | 15 |  |  | (15) | (15) | (15) |  | (460) | (475)
Balance, at the end of the period at Dec. 31, 2017 | $ 13,866 | $ 14,672 | $ 2,526 | $ 2,168 | $ 671 | $ (43) | $ (19) | $ 9,188 | $ 9,607 | $ 11,671 | $ 2 | $ 2,193 | $ 2,245

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