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Derivative Instruments (Balance Sheet Disclosures) (Details) - SCE - Commodity derivative contracts - Electric Utility - USD ($) $ in Millions | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Derivative Assets |  |
Gross amounts recognized | $ 173 | $ 111
Gross amounts offset in the consolidated balance sheets | 0 | (1)
Cash collateral posted | 0 | 0
Net amounts presented in the consolidated balance sheets | 173 | 110
Derivative Liabilities |  |
Gross amounts recognized | 13 | 3
Gross amounts offset in the consolidated balance sheets | 0 | (1)
Cash collateral posted | (7) | (1)
Net amounts presented in the consolidated balance sheets | 6 | 1
Net Asset |  |
Gross amounts recognized | (160) | (108)
Gross amounts offset in the consolidated balance sheets | 0 | 0
Cash collateral posted | 7 | 1
Net amounts presented in the consolidated balance sheets | 167 | 109
Derivative Assets, Short-Term |  |
Derivative Assets |  |
Gross amounts recognized | 171 | 106
Gross amounts offset in the consolidated balance sheets | 0 | (1)
Cash collateral posted | 0 | 0
Net amounts presented in the consolidated balance sheets | 171 | 105
Derivative Assets, Long-Term |  |
Derivative Assets |  |
Gross amounts recognized | 2 | 5
Gross amounts offset in the consolidated balance sheets | 0 | 0
Cash collateral posted | 0 | 0
Net amounts presented in the consolidated balance sheets | 2 | 5
Derivative Liability, Short-Term |  |
Derivative Liabilities |  |
Gross amounts recognized | 13 | 3
Gross amounts offset in the consolidated balance sheets | 0 | (1)
Cash collateral posted | (7) | (1)
Net amounts presented in the consolidated balance sheets | 6 | 1
Derivative Liability, Long-Term |  |
Derivative Liabilities |  |
Gross amounts recognized | 0 | 0
Gross amounts offset in the consolidated balance sheets | 0 | 0
Cash collateral posted | 0 | 0
Net amounts presented in the consolidated balance sheets | $ 0 | $ 0

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