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Balance Sheet Components | 12 Months Ended
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Dec. 31, 2020
Balance Sheet Components [Abstract] |
Balance Sheet Components | BALANCE SHEET COMPONENTS Accounts Receivable, Net Accounts receivable, net includes $97 million and $86 million of unbilled revenues as of December 31, 2020 and 2019, respectively. Accounts receivable is net of an allowance for uncollectible accounts of $16 million as of December 31, 2020 and $5 million as of December 31, 2019. The following is the activity in the allowance for uncollectible accounts (in millions):
| Years Ended December 31,
| 2020 |  | 2019 |  | 2018
Balance as of beginning of year | $ | 5 |  |  | $ | 15 |  |  | $ | 6 |
Increase in provision * | 15 |  |  | 2 |  |  | 14 |
Amounts written off, less recoveries | (4) |  |  | (12) |  |  | (5) |
Balance as of end of year | $ | 16 |  |  | $ | 5 |  |  | $ | 15 |
* As of December 31, 2020, PGE has deferred as a regulatory asset $8 million in bad debt expense pursuant to the OPUC’s COVID-19 deferral order. Other Current Assets and Accrued Expenses and Other Current Liabilities Other current assets and Accrued expenses and other current liabilities consist of the following (in millions):
| As of December 31,
| 2020 |  | 2019
Other current assets: |  |  |
Prepaid expenses | $ | 57 |  |  | $ | 63 |
Margin deposits | 8 |  |  | 16 |
Assets from price risk management activities | 33 |  |  | 25 |
| $ | 98 |  |  | $ | 104 |
Accrued expenses and other current liabilities: |  |  |
Regulatory liabilities—current | $ | 23 |  |  | $ | 44 |
Accrued employee compensation and benefits | 67 |  |  | 74 |
Accrued dividends payable | 38 |  |  | 36 |
Accrued interest payable | 29 |  |  | 25 |
Accrued taxes payable | 36 |  |  | 33 |
Other | 129 |  |  | 103 |
| $ | 322 |  |  | $ | 315 |
Electric Utility Plant, Net Electric utility plant, net consist of the following (in millions):
| As of December 31,
| 2020 |  | 2019
Electric utility plant: |  |  |
Generation | $ | 4,436 |  |  | $ | 4,749 |
Transmission | 970 |  |  | 848 |
Distribution | 4,136 |  |  | 3,917 |
General | 679 |  |  | 656 |
Intangible | 753 |  |  | 758 |
Total in service | 10,974 |  |  | 10,928 |
Accumulated depreciation and amortization | (3,864) |  |  | (4,095) |
Total in service, net | 7,110 |  |  | 6,833 |
Construction work-in-progress | 429 |  |  | 328 |
Electric utility plant, net | $ | 7,539 |  |  | $ | 7,161 |

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