XML 158 R40.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Variable Interest Entities (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2018
Variable Interest Entity [Abstract] |
Schedule of Variable Interest Entities | The carrying amounts and classification of the consolidated VIEs’ assets and liabilities included in the Registrants' consolidated financial statements at December 31, 2018 and 2017 are as follows:
| December 31, 2018
| Exelon(a) |  | Generation |  | PHI(a) |  | ACE
Current assets | $ | 938 |  |  | $ | 931 |  |  | $ | 7 |  |  | 4 |
Noncurrent assets | 9,071 |  |  | 9,045 |  |  | 26 |  |  | 19 |
Total assets | $ | 10,009 |  |  | $ | 9,976 |  |  | $ | 33 |  |  | $ | 23 |
Current liabilities | $ | 274 |  |  | $ | 252 |  |  | $ | 22 |  |  | 19 |
Noncurrent liabilities | 3,280 |  |  | 3,233 |  |  | 47 |  |  | 40 |
Total liabilities | $ | 3,554 |  |  | $ | 3,485 |  |  | $ | 69 |  |  | $ | 59 |
| December 31, 2017
| Exelon(a) |  | Generation |  | PHI(a) |  | ACE
Current assets | $ | 662 |  |  | $ | 652 |  |  | $ | 10 |  |  | $ | 6 |
Noncurrent assets | 9,317 |  |  | 9,286 |  |  | 31 |  |  | 23 |
Total assets | $ | 9,979 |  |  | $ | 9,938 |  |  | $ | 41 |  |  | $ | 29 |
Current liabilities | $ | 308 |  |  | $ | 272 |  |  | $ | 36 |  |  | $ | 32 |
Noncurrent liabilities | 3,316 |  |  | 3,250 |  |  | 66 |  |  | 58 |
Total liabilities | $ | 3,624 |  |  | $ | 3,522 |  |  | $ | 102 |  |  | $ | 90 |
__________
(a) | Includes certain purchase accounting adjustments not pushed down to the ACE standalone entity.
The following tables present summary information about Exelon and Generation’s significant unconsolidated VIE entities:
December 31, 2018 | Commercial Agreement VIEs |  | Equity Investment VIEs |  | Total
Total assets(a) | $ | 597 |  |  | $ | 472 |  |  | $ | 1,069 |
Total liabilities(a) | 37 |  |  | 222 |  |  | 259 |
Exelon's ownership interest in VIE(a) | — |  |  | 223 |  |  | 223 |
Other ownership interests in VIE(a) | 560 |  |  | 27 |  |  | 587 |
Registrants’ maximum exposure to loss: |  |  |  |  |  |
Carrying amount of equity method investments | — |  |  | 223 |  |  | 223 |
Contract intangible asset | 7 |  |  | — |  |  | 7 |
Net assets pledged for Zion Station decommissioning(b) | — |  |  | — |  |  | — |
December 31, 2017 | Commercial Agreement VIEs |  | Equity Investment VIEs |  | Total
Total assets(a) | $ | 625 |  |  | $ | 509 |  |  | $ | 1,134 |
Total liabilities(a) | 37 |  |  | 228 |  |  | 265 |
Exelon's ownership interest in VIE(a) | — |  |  | 251 |  |  | 251 |
Other ownership interests in VIE(a) | 588 |  |  | 30 |  |  | 618 |
Registrants’ maximum exposure to loss: |  |  |  |  |  |
Carrying amount of equity method investments | — |  |  | 251 |  |  | 251 |
Contract intangible asset | 8 |  |  | — |  |  | 8 |
Net assets pledged for Zion Station decommissioning(b) | 2 |  |  | — |  |  | 2 |
__________
(a) | These items represent amounts on the unconsolidated VIE balance sheets, not in Exelon’s or Generation’s Consolidated Balance Sheets. These items are included to provide information regarding the relative size of the unconsolidated VIEs.
(b) | These items represent amounts in Exelon’s and Generation’s Consolidated Balance Sheets related to the asset sale agreement with ZionSolutions, LLC. The net assets pledged for Zion Station decommissioning includes gross pledged assets of $9 million and $39 million as of December 31, 2018 and December 31, 2017, respectively; offset by payables to ZionSolutions LLC of $9 million and $37 million as of December 31, 2018 and December 31, 2017, respectively. These items are included to provide information regarding the relative size of the ZionSolutions, LLC unconsolidated VIE.
As of December 31, 2018 and 2017, these assets and liabilities primarily consisted of the following:
| December 31, 2018
| Exelon(a) |  | Generation |  | PHI(a) |  | ACE
Cash and cash equivalents | $ | 414 |  |  | $ | 414 |  |  | $ | — |  |  | $ | — |
Restricted cash and cash equivalents | 66 |  |  | 62 |  |  | 4 |  |  | 4 |
Accounts receivable, net |  |  |  |  |  |  |
Customer | 146 |  |  | 146 |  |  | — |  |  | — |
Other | 23 |  |  | 23 |  |  | — |  |  | — |
Inventory |  |  |  |  |  |  |
Materials and supplies | 212 |  |  | 212 |  |  | — |  |  | — |
Other current assets | 52 |  |  | 49 |  |  | 3 |  |  | — |
Total current assets | 913 |  |  | 906 |  |  | 7 |  |  | 4 |
Property, plant and equipment, net | 6,145 |  |  | 6,145 |  |  | — |  |  | — |
Nuclear decommissioning trust funds | 2,351 |  |  | 2,351 |  |  | — |  |  | — |
Other noncurrent assets | 258 |  |  | 232 |  |  | 26 |  |  | 19 |
Total noncurrent assets | 8,754 |  |  | 8,728 |  |  | 26 |  |  | 19 |
Total assets | $ | 9,667 |  |  | $ | 9,634 |  |  | $ | 33 |  |  | $ | 23 |
Long-term debt due within one year | $ | 87 |  |  | $ | 66 |  |  | $ | 21 |  |  | $ | 18 |
Accounts payable | 96 |  |  | 96 |  |  | — |  |  | — |
Accrued expenses | 72 |  |  | 72 |  |  | 1 |  |  | 1 |
Unamortized energy contract liabilities | 15 |  |  | 15 |  |  | — |  |  | — |
Other current liabilities | 3 |  |  | 3 |  |  | — |  |  | — |
Total current liabilities | 273 |  |  | 252 |  |  | 22 |  |  | 19 |
Long-term debt | 1,072 |  |  | 1,025 |  |  | 47 |  |  | 40 |
Asset retirement obligations | 2,160 |  |  | 2,160 |  |  | — |  |  | — |
Unamortized energy contract liabilities | 1 |  |  | 1 |  |  | — |  |  | — |
Other noncurrent liabilities | 42 |  |  | 42 |  |  | — |  |  | — |
Total noncurrent liabilities | 3,275 |  |  | 3,228 |  |  | 47 |  |  | 40 |
Total liabilities | $ | 3,548 |  |  | $ | 3,480 |  |  | $ | 69 |  |  | $ | 59 |
__________
(a) | Includes certain purchase accounting adjustments not pushed down to the ACE standalone entity.
| December 31, 2017
| Exelon(a) |  | Generation |  | PHI(a) |  | ACE
Cash and cash equivalents | $ | 126 |  |  | $ | 126 |  |  | $ | — |  |  | $ | — |
Restricted cash and cash equivalents | 64 |  |  | 58 |  |  | 6 |  |  | 6 |
Accounts receivable, net |  |  |  |  |  |  |
Customer | 170 |  |  | 170 |  |  | — |  |  | — |
Other | 25 |  |  | 25 |  |  | — |  |  | — |
Inventory |  |  |  |  |  |  |
Materials and supplies | 205 |  |  | 205 |  |  | — |  |  | — |
Other current assets | 45 |  |  | 41 |  |  | 4 |  |  | — |
Total current assets | 635 |  |  | 625 |  |  | 10 |  |  | 6 |
Property, plant and equipment, net | 6,186 |  |  | 6,186 |  |  | — |  |  | — |
Nuclear decommissioning trust funds | 2,502 |  |  | 2,502 |  |  | — |  |  | — |
Other noncurrent assets | 274 |  |  | 243 |  |  | 31 |  |  | 23 |
Total noncurrent assets | 8,962 |  |  | 8,931 |  |  | 31 |  |  | 23 |
Total assets | $ | 9,597 |  |  | $ | 9,556 |  |  | $ | 41 |  |  | $ | 29 |
Long-term debt due within one year | $ | 102 |  |  | $ | 67 |  |  | $ | 35 |  |  | $ | 31 |
Accounts payable | 114 |  |  | 114 |  |  | — |  |  | — |
Accrued expenses | 67 |  |  | 66 |  |  | 1 |  |  | 1 |
Unamortized energy contract liabilities | 18 |  |  | 18 |  |  | — |  |  | — |
Other current liabilities | 7 |  |  | 7 |  |  | — |  |  | — |
Total current liabilities | 308 |  |  | 272 |  |  | 36 |  |  | 32 |
Long-term debt | 1,154 |  |  | 1,088 |  |  | 66 |  |  | 58 |
Asset retirement obligations | 2,035 |  |  | 2,035 |  |  | — |  |  | — |
Other noncurrent liabilities | 121 |  |  | 121 |  |  | — |  |  | — |
Total noncurrent liabilities | 3,310 |  |  | 3,244 |  |  | 66 |  |  | 58 |
Total liabilities | $ | 3,618 |  |  | $ | 3,516 |  |  | $ | 102 |  |  | $ | 90 |
__________
(a) | Includes certain purchase accounting adjustments not pushed down to the ACE standalone entity.

X
- Definition Variable Interest Entity [Abstract] + References No definition available. + Details
Name: | exc_VariableInterestEntityAbstract
Namespace Prefix: | exc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the significant judgments and assumptions made in determining whether a variable interest (as defined) held by the entity requires the variable interest entity (VIE) (as defined) to be consolidated and (or) disclose information about its involvement with the VIE, individually or in aggregate (as applicable); the nature of restrictions, if any, on the consolidated VIE's assets and on the settlement of its liabilities reported by an entity in its statement of financial position, including the carrying amounts of such assets and liabilities; the nature of, and changes in, the risks associated with involvement in the VIE; how involvement with the VIE affects the entity's financial position, financial performance, and cash flows; the lack of recourse if creditors (or beneficial interest holders) of the consolidated VIE have no recourse to the general credit of the primary beneficiary (if applicable); the terms of arrangements, giving consideration to both explicit arrangements and implicit variable interests, if any, that could require the entity to provide financial support to the VIE, including events or circumstances that could expose the entity to a loss; the methodology used by the entity for determining whether or not it is the primary beneficiary of the variable interest entity; the significant factors considered and judgments made in determining that the power to direct the activities of a VIE that most significantly impact the VIE's economic performance are shared (as defined); the carrying amounts and classification of assets and liabilities of the VIE included in the statement of financial position; the entity's maximum exposure to loss, if any, as a result of its involvement with the VIE, including how the maximum exposure is determined and significant sources of the entity's exposure to the VIE; a comparison of the carrying amounts of the assets and liabilities and the entity's maximum exposure to loss; information about any liquidity arrangements, guarantees, and (or) other commitments by third parties that may affect the fair value or risk of the entity's variable interest in the VIE; whether or not the entity has provided financial support or other support (explicitly or implicitly) to the VIE that it was not previously contractually required to provide or whether the entity intends to provide that support, including the type and amount of the support and the primary reasons for providing the support; and supplemental information the entity determines necessary to provide. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=77990344&loc=d3e5747-111685 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=77990344&loc=SL6228884-111685 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=77990344&loc=d3e5728-111685 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 5A -URI http://asc.fasb.org/extlink&oid=77990344&loc=SL6759159-111685 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=77990344&loc=d3e5710-111685 + Details
Name: | us-gaap_ScheduleOfVariableInterestEntitiesTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration