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Financing Receivables (Schedule Of Assets Under Lease Receivables) (Detail) $ in Millions | 9 Months Ended
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Sep. 30, 2016 USD ($) MW
Powerton Station Units 5 And 6 [Member] |  |
Schedule of Financial Receivables [Line Items] |  |
Location | IL |
Gross Investment | $ | $ 134 |
% Owned | 64.00% |
Total MW | MW | 1,538 |
Fuel Type | Coal |
Counterparties’ S&P Credit Ratings | BB- |
Counterparty | NRG Energy, Inc. |
Joliet Station Units 7 And 8 [Member] |  |
Schedule of Financial Receivables [Line Items] |  |
Location | IL |
Gross Investment | $ | $ 83 |
% Owned | 64.00% |
Total MW | MW | 1,044 |
Fuel Type | Gas |
Counterparties’ S&P Credit Ratings | BB- |
Counterparty | NRG Energy, Inc. |
Keystone Station Units 1 And 2 [Member] |  |
Schedule of Financial Receivables [Line Items] |  |
Location | PA |
Gross Investment | $ | $ 55 |
% Owned | 17.00% |
Total MW | MW | 1,711 |
Fuel Type | Coal |
Counterparties’ S&P Credit Ratings | CCC (B) | [1]
Counterparty | REMA |
Conemaugh Station Units 1 And 2 [Member] |  |
Schedule of Financial Receivables [Line Items] |  |
Location | PA |
Gross Investment | $ | $ 55 |
% Owned | 17.00% |
Total MW | MW | 1,711 |
Fuel Type | Coal |
Counterparties’ S&P Credit Ratings | CCC (B) | [1]
Counterparty | REMA |
Shawville Station Units 1, 2, 3 And 4 [Member] |  |
Schedule of Financial Receivables [Line Items] |  |
Location | PA |
Gross Investment | $ | $ 109 |
% Owned | 100.00% |
Total MW | MW | 603 |
Fuel Type | Coal (A) | [2]
Counterparties’ S&P Credit Ratings | CCC (B) | [1]
Counterparty | REMA |
[1] | On May 24, 2016, S&P lowered its corporate credit rating on REMA’s parent company, GenOn Energy Inc. (GenOn) and affiliates (including REMA) to “CCC” from “CCC+” due to a weaker forward power curve, milder weather patterns and weakening financial measures. On October 7, 2016, Moody’s downgraded the GenOn Corporate Family Rating to Caa3 to reflect its high debt burden relative to cash flow. GenOn reported in August 2016 that it did not expect to have sufficient liquidity to repay the senior unsecured notes due in June 2017.
[2] | REMA notified PJM that it deactivated the coal-fired units at the Shawville generating facility in June 2015 and has disclosed that it expects to return the Shawville units to service in the late fall of 2016 with the ability to use natural gas.

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