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Supplemental Cash Flows Information (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2015 | Jun. 30, 2016 | Jun. 30, 2015
Cash payments for interest and taxes |  |  |
Interest, net of amounts capitalized |  | $ 228 | $ 230
Tax payments, net |  | 12 | 3
Convertible Debt [Abstract] |  |  |
Pollution-control bonds redeemed (2.875%) |  | 0 | (203)
Pollution-control bonds issued (1.875%) |  | 0 | 203
Common stock |  |  |
Dividends declared but not paid |  |  |
Dividends declared but not paid | $ 136 | 156 | 136
Preferred and preference stock |  |  |
Dividends declared but not paid |  |  |
Dividends declared but not paid | 18 | 12 | 18
Southern California Edison |  |  |
Cash payments for interest and taxes |  |  |
Interest, net of amounts capitalized |  | 221 | 222
Tax payments, net |  | 32 | 125
Convertible Debt [Abstract] |  |  |
Pollution-control bonds redeemed (2.875%) |  | 0 | (203)
Pollution-control bonds issued (1.875%) |  | 0 | 203
Accrued capital expenditures |  | 338 | 393
Reduction in lease obligation | 147 |  |
Southern California Edison | Common stock |  |  |
Dividends declared but not paid |  |  |
Dividends declared but not paid | 147 | 0 | 147
Southern California Edison | Preferred and preference stock |  |  |
Dividends declared but not paid |  |  |
Dividends declared but not paid | $ 18 | $ 12 | $ 18
2.875% Pollution-Control Bonds |  |  |
Convertible Debt [Abstract] |  |  |
Interest rate on converted debt |  | 2.875% | 2.875%
2.875% Pollution-Control Bonds | Southern California Edison |  |  |
Convertible Debt [Abstract] |  |  |
Interest rate on converted debt |  | 2.875% | 2.875%
1.875% Pollution-Control Bonds Due in 2029 |  |  |
Convertible Debt [Abstract] |  |  |
Interest rate on converted debt |  | 1.875% | 1.875%
1.875% Pollution-Control Bonds Due in 2029 | Southern California Edison |  |  |
Convertible Debt [Abstract] |  |  |
Interest rate on converted debt |  | 1.875% | 1.875%

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