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Derivative Instruments (Balance Sheet Disclosures) (Details) - USD ($) | Jun. 30, 2016 | Dec. 31, 2015
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Fair Value of Derivative Instruments |  |
Short-Term, Derivative Assets | $ 65,000,000 | $ 79,000,000
Long-Term, Derivative Assets | 69,000,000 | 84,000,000
Short-Term, Derivative Liabilities | 195,000,000 | 218,000,000
Long-Term, Derivative Liabilities | 1,101,000,000 | 1,100,000,000
Southern California Edison |  |
Fair Value of Derivative Instruments |  |
Short-Term, Derivative Assets | 65,000,000 | 79,000,000
Long-Term, Derivative Assets | 69,000,000 | 84,000,000
Short-Term, Derivative Liabilities | 195,000,000 | 218,000,000
Long-Term, Derivative Liabilities | 1,100,000,000 | 1,100,000,000
Southern California Edison | Electric Utility | Gross amounts recognized |  |
Derivatives |  |
Collateral that is not offset against derivative assets | 12,000,000 | 0
Southern California Edison | Commodity Contracts | Other current liabilities |  |
Derivatives |  |
Collateral that is not offset against derivative assets | (4,000,000) |
Southern California Edison | Commodity Contracts | Other current assets |  |
Derivatives |  |
Collateral that is not offset against derivative assets |  | 31,000,000
Southern California Edison | Commodity Contracts | Electric Utility |  |
Fair Value of Derivative Instruments |  |
Short-Term, Derivative Assets | 65,000,000 | 79,000,000
Long-Term, Derivative Assets | 69,000,000 | 84,000,000
Derivative Assets, Subtotal | 134,000,000 | 163,000,000
Short-Term, Derivative Liabilities | 195,000,000 | 218,000,000
Long-Term, Derivative Liabilities | 1,100,000,000 | 1,100,000,000
Derivative Liabilities, Subtotal | 1,295,000,000 | 1,318,000,000
Net Liability | 1,161,000,000 | 1,155,000,000
Southern California Edison | Commodity Contracts | Electric Utility | Gross amounts recognized |  |
Fair Value of Derivative Instruments |  |
Short-Term, Derivative Assets | 66,000,000 | 81,000,000
Long-Term, Derivative Assets | 69,000,000 | 84,000,000
Derivative Assets, Subtotal | 135,000,000 | 165,000,000
Short-Term, Derivative Liabilities | 196,000,000 | 235,000,000
Long-Term, Derivative Liabilities | 1,100,000,000 | 1,100,000,000
Derivative Liabilities, Subtotal | 1,296,000,000 | 1,335,000,000
Net Liability | 1,161,000,000 | 1,170,000,000
Southern California Edison | Commodity Contracts | Electric Utility | Gross amounts offset in the consolidated balance sheets |  |
Fair Value of Derivative Instruments |  |
Short-Term, Derivative Assets | (1,000,000) | (2,000,000)
Long-Term, Derivative Assets | 0 | 0
Derivative Assets, Subtotal | (1,000,000) | (2,000,000)
Short-Term, Derivative Liabilities | (1,000,000) | (2,000,000)
Long-Term, Derivative Liabilities | 0 | 0
Derivative Liabilities, Subtotal | (1,000,000) | (2,000,000)
Net Liability | 0 | 0
Southern California Edison | Commodity Contracts | Electric Utility | Cash collateral posted |  |
Fair Value of Derivative Instruments |  |
Short-Term, Derivative Assets | 0 | 0
Long-Term, Derivative Assets | 0 | 0
Derivative Assets, Subtotal | 0 | 0
Short-Term, Derivative Liabilities | 0 | (15,000,000)
Long-Term, Derivative Liabilities | 0 | 0
Derivative Liabilities, Subtotal | 0 | (15,000,000)
Net Liability | $ 0 | $ (15,000,000)

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