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Balance Sheet Components Schedule of Other Asssets and Other Liabilities (Details) - USD ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Other current assets: |  |
Prepaid Expense, Current | $ 57 | $ 63
Margin Deposit Assets | 8 | 16
Assets from price risk management activities | 33 | 25
Other Assets, Current | 98 | 104
Accrued expenses and other current liabilities: |  |
Regulatory Liability, Current | 23 | 44
Accrued employee compensation and benefits | 67 | 74
Accrued interest payable | 29 | 25
Dividends payable | 38 | 36
Taxes Payable, Current | 36 | 33
Other | 129 | 103
Other Liabilities, Current | $ 322 | $ 315

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