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Derivative Instruments (Balance Sheet Disclosures) (Details) - Southern California Edison Company - Electric Utility - USD ($) $ in Millions | Sep. 30, 2019 | Dec. 31, 2018
--- | --- | ---
Economic Hedges |  |
Net Assets |  |
Cash collateral not offset against derivative liabilities | $ 36 |
Other current assets | Economic Hedges |  |
Net Assets |  |
Cash collateral not offset against derivative liabilities | 28 |
Commodity derivative contracts |  |
Derivative Assets |  |
Gross amounts recognized | 80 | $ 173
Gross amounts offset in the consolidated balance sheets | (16) | 0
Cash collateral posted | 0 | 0
Net amounts presented in the consolidated balance sheets | 64 | 173
Derivative Liabilities |  |
Gross amounts recognized | 24 | 13
Gross amounts offset in the consolidated balance sheets | (16) | 0
Cash collateral posted | (8) | (7)
Net amounts presented in the consolidated balance sheets | 0 | 6
Net Assets |  |
Gross amounts recognized | 56 | 160
Gross amounts offset in the consolidated balance sheets | 0 | 0
Cash collateral posted | 8 | 7
Net amounts presented in the consolidated balance sheets | 64 | 167
Commodity derivative contracts | Derivative Assets, Short-Term |  |
Derivative Assets |  |
Gross amounts recognized | 63 | 171
Gross amounts offset in the consolidated balance sheets | (14) | 0
Cash collateral posted | 0 | 0
Net amounts presented in the consolidated balance sheets | 49 | 171
Commodity derivative contracts | Derivative Assets, Long-Term |  |
Derivative Assets |  |
Gross amounts recognized | 17 | 2
Gross amounts offset in the consolidated balance sheets | (2) | 0
Cash collateral posted | 0 | 0
Net amounts presented in the consolidated balance sheets | 15 | 2
Commodity derivative contracts | Derivative Liability, Short-Term |  |
Derivative Liabilities |  |
Gross amounts recognized | 22 | 13
Gross amounts offset in the consolidated balance sheets | (14) | 0
Cash collateral posted | (8) | (7)
Net amounts presented in the consolidated balance sheets | 0 | 6
Commodity derivative contracts | Derivative Liability, Long-Term |  |
Derivative Liabilities |  |
Gross amounts recognized | 2 | 0
Gross amounts offset in the consolidated balance sheets | (2) | 0
Cash collateral posted | 0 | 0
Net amounts presented in the consolidated balance sheets | $ 0 | $ 0

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