Financing Receivables (Schedule Of Assets Under Lease Receivables) (Detail)
$ in Millions |
3 Months Ended |
|
Mar. 31, 2018
USD ($)
MW
|
|---|
| Powerton Station Units 5 And 6 [Member] |
|
| Schedule of Financial Receivables [Line Items] |
|
| Location |
IL
|
| Gross Investment | $ |
$ 132
|
| % 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 | $ |
$ 85
|
| % Owned |
64.00%
|
| Total MW | MW |
1,036
|
| 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 | $ |
$ 20
|
| % Owned |
17.00%
|
| Total MW | MW |
1,711
|
| Fuel Type |
Coal
|
| Counterparties’ S&P Credit Ratings |
CCC-
|
| Counterparty |
REMA (A)
|
| Conemaugh Station Units 1 And 2 [Member] |
|
| Schedule of Financial Receivables [Line Items] |
|
| Location |
PA
|
| Gross Investment | $ |
$ 20
|
| % Owned |
17.00%
|
| Total MW | MW |
1,711
|
| Fuel Type |
Coal
|
| Counterparties’ S&P Credit Ratings |
CCC-
|
| Counterparty |
REMA (A)
|
| Shawville Station Units 1, 2, 3 And 4 [Member] |
|
| Schedule of Financial Receivables [Line Items] |
|
| Location |
PA
|
| Gross Investment | $ |
$ 78
|
| % Owned |
100.00%
|
| Total MW | MW |
596
|
| Fuel Type |
Gas
|
| Counterparties’ S&P Credit Ratings |
CCC-
|
| Counterparty |
REMA (A)
|