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Balance Sheet Components Schedule of Other Asssets and Other Liabilities (Details) - USD ($) $ in Millions | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Other current assets: |  |
Prepaid Expense, Current | $ 54 | $ 50
Margin Deposit Assets | 16 | 11
Assets from price risk management activities | 20 | 6
Other | 0 | 6
Other Assets, Current | 90 | 73
Accrued expenses and other current liabilities: |  |
Regulatory Liability, Current | 36 | 31
Accrued employee compensation and benefits | 66 | 60
Accrued interest payable | 27 | 27
Dividends payable | 34 | 31
Taxes Payable, Current | 34 | 31
Other | 71 | 61
Other Liabilities, Current | $ 268 | $ 241

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