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Balance Sheet Components (Notes) | 3 Months Ended
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Mar. 31, 2016
Balance Sheet Components [Abstract] |
BALANCE SHEET COMPONENTS | BALANCE SHEET COMPONENTS Inventories PGE’s inventories, which are recorded at average cost, consist primarily of materials and supplies for use in operations, maintenance, and capital activities, as well as fuel for use in generating plants. Fuel inventories include natural gas, coal, and oil. Periodically, the Company assesses the realizability of inventory for purposes of determining that inventory is recorded at the lower of average cost or market. Other Current Assets Other current assets consist of the following (in millions):
| March 31, 2016 |  | December 31, 2015
Prepaid expenses | $ | 55 |  |  | $ | 43 |
Margin deposits | 40 |  |  | 33 |
Assets from price risk management activities | 18 |  |  | 10 |
Other | — |  |  | 2 |
Other current assets | $ | 113 |  |  | $ | 88 |
Electric Utility Plant, Net Electric utility plant, net consists of the following (in millions):
| March 31, 2016 |  | December 31, 2015
Electric utility plant | $ | 8,663 |  |  | $ | 8,560 |
Construction work-in-progress | 647 |  |  | 545 |
Total cost | 9,310 |  |  | 9,105 |
Less: accumulated depreciation and amortization | (3,150 | ) |  | (3,093 | )
Electric utility plant, net | $ | 6,160 |  |  | $ | 6,012 |
Accumulated depreciation and amortization in the table above includes accumulated amortization related to intangible assets of $238 million and $227 million as of March 31, 2016 and December 31, 2015, respectively. Amortization expense related to intangible assets was $11 million and $9 million for the three months ended March 31, 2016 and 2015, respectively. The Company’s intangible assets primarily consist of computer software development and hydro licensing costs. Capital Lease—PGE has entered into agreements to purchase natural gas transportation capacity to serve the Carty Generating Station (Carty), a 440 MW natural gas-fired baseload resource under construction in eastern Oregon, located adjacent to the Boardman coal-fired generating plant. A new natural gas pipeline, Carty Lateral, was recently completed and is a 24 mile, 20-inch diameter steel pipe, which extends from Ione, Oregon, and terminates at a connection within the Carty facility. The Company has entered into a 30-year agreement to purchase the entire capacity of Carty Lateral, which is approximately 175,000 decatherms per day. At the end of the initial contract term, the Company has the option to renew the agreement in continuous three-year increments with at least 24-months prior written notice. For accounting purposes, this transportation capacity agreement is treated as a capital lease. As of March 31, 2016, a capital lease asset of $54 million was reflected within Electric utility plant, and accumulated amortization of such assets of $1 million reflected within Accumulated depreciation and amortization in the table above. The present value of the future minimum lease payments due under the agreement included $2 million within Accrued expenses and other current liabilities and $51 million in Other noncurrent liabilities on the condensed consolidated balance sheets, respectively. For ratemaking purposes capital leases are treated as operating leases; therefore, in accordance with the accounting rules for regulated operations, the amortization of the leased asset is based on the rental payments recovered from customers. Also for ratemaking purposes, such rental payments are capitalized to the project during the construction period. Amortization of the leased asset of $1 million and interest expense of $2 million has been capitalized to Construction work-in-progress (CWIP) during the construction period of Carty. For the remainder of 2016, PGE expects $5 million in minimum lease payments, with $3 million imputed interest and present value of net minimum lease payments of $2 million. As of March 31, 2016, PGE’s estimated future minimum lease payments for the following five years and thereafter are as follows (in millions):
| Payments Due
| 2017 |  | 2018 |  | 2019 |  | 2020 |  | 2021 |  | Thereafter |  | Total
Total minimum lease payments | $ | 6 |  |  | $ | 6 |  |  | $ | 6 |  |  | $ | 6 |  |  | $ | 5 |  |  | $ | 73 |  |  | $ | 102 |
Less imputed interest |  |  |  |  |  |  |  |  |  |  |  |  | 49 |
Present value of net minimum lease payments |  |  |  |  |  |  |  |  |  |  |  |  | $ | 53 |
Regulatory Assets and Liabilities Regulatory assets and liabilities consist of the following (in millions):
| March 31, 2016 |  | December 31, 2015
| Current |  | Noncurrent |  | Current |  | Noncurrent
Regulatory assets: |  |  |  |  |  |  |
Price risk management | $ | 124 |  |  | $ | 159 |  |  | $ | 120 |  |  | $ | 161 |
Pension and other postretirement plans | — |  |  | 235 |  |  | — |  |  | 239 |
Deferred income taxes | — |  |  | 86 |  |  | — |  |  | 86 |
Debt issuance costs | — |  |  | 24 |  |  | — |  |  | 16 |
Other | 7 |  |  | 22 |  |  | 9 |  |  | 22 |
Total regulatory assets | $ | 131 |  |  | $ | 526 |  |  | $ | 129 |  |  | $ | 524 |
Regulatory liabilities: |  |  |  |  |  |  |
Asset retirement removal costs | $ | — |  |  | $ | 850 |  |  | $ | — |  |  | $ | 837 |
Trojan decommissioning activities | 21 |  |  | 11 |  |  | 17 |  |  | 15 |
Asset retirement obligations | — |  |  | 46 |  |  | — |  |  | 45 |
Other | 36 |  |  | 31 |  |  | 38 |  |  | 31 |
Total regulatory liabilities | $ | 57 |  | * | $ | 938 |  |  | $ | 55 |  | * | $ | 928 |
* | Included in Accrued expenses and other current liabilities in the condensed consolidated balance sheets.
Accrued Expenses and Other Current Liabilities Accrued expenses and other current liabilities consist of the following (in millions):
| March 31, 2016 |  | December 31, 2015
Regulatory liabilities—current | $ | 57 |  |  | $ | 55 |
Accrued employee compensation and benefits | 42 |  |  | 51 |
Accrued interest payable | 40 |  |  | 25 |
Accrued dividends payable | 28 |  |  | 28 |
Accrued taxes payable | 30 |  |  | 25 |
Other | 71 |  |  | 75 |
Total accrued expenses and other current liabilities | $ | 268 |  |  | $ | 259 |
Credit Facilities As of March 31, 2016, PGE had a $500 million revolving credit facility scheduled to expire in November 2019. Pursuant to the terms of the agreement, the revolving credit facility may be used for general corporate purposes, as backup for commercial paper borrowings, and to permit the issuance of standby letters of credit. PGE may borrow for one, two, three, or six months at a fixed interest rate established at the time of the borrowing, or at a variable interest rate for any period up to the then remaining term of the applicable credit facility. The revolving credit facility contains provisions for two one-year extensions subject to approval by the banks, requires annual fees based on PGE’s unsecured credit ratings, and contains customary covenants and default provisions, including a requirement that limits consolidated indebtedness, as defined in the agreement, to 65% of total capitalization. As of March 31, 2016, PGE was in compliance with this covenant with a 49.9% debt-to-total capital ratio. The Company has a commercial paper program under which it may issue commercial paper for terms of up to 270 days, limited to the unused amount of credit under the revolving credit facility. PGE classifies any borrowings under the revolving credit facility and outstanding commercial paper as Short-term debt on the condensed consolidated balance sheets. Under the revolving credit facility, as of March 31, 2016, PGE had no borrowings, commercial paper, or letters of credit issued. As of March 31, 2016, the aggregate unused available credit capacity under the revolving credit facility was $500 million. In addition, PGE has four letter of credit facilities that provide a total of $160 million capacity under which the Company can request letters of credit for original terms not to exceed one year. The issuance of such letters of credit is subject to the approval of the issuing institution. Under these four facilities, $111 million of letters of credit were outstanding, as of March 31, 2016. Pursuant to an order issued by the Federal Energy Regulatory Commission (FERC), the Company is authorized to issue short-term debt in an aggregate amount of up to $900 million through February 6, 2018. Long-term Debt During the three months ended March 31, 2016, PGE had the following long-term debt transactions, all of which occurred in early January:
• | Issued $140 million of 2.51% Series First Mortgage Bonds (FMBs) due 2021;
• | Repaid $75 million of 5.80% Series FMBs, due in 2018; and
• | Repaid $58 million of 3.81% Series FMBs, due in 2017.
Due to the anticipated repayment of the $133 million in early January 2016, this amount of long-term debt was classified as current on the Company’s condensed consolidated balance sheets as of December 31, 2015. Defined Benefit Pension Plan Costs Components of net periodic benefit cost under the defined benefit pension plan are as follows (in millions):
|  | Three Months Ended March 31,
|  | 2016 |  | 2015
Service cost |  | $ | 4 |  |  | $ | 4 |
Interest cost |  | 8 |  |  | 8 |
Expected return on plan assets |  | (10 | ) |  | (10 | )
Amortization of net actuarial loss |  | 4 |  |  | 5 |
Net periodic benefit cost |  | $ | 6 |  |  | $ | 7 |

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