Rendering

Component: (Network and Table)
Network
2407402 - Disclosure - Inventory (Details)
(http://www.nrgenergy.com/role/InventoryDetails)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0001013871 (http://www.sec.gov/CIK)
Inventory Disclosure [Abstract]Period [Axis]
2015-01-01 - 2015-12-31
2016-12-31
Inventory Disclosure [Abstract]
 
 
Fuel oil
312,000,000  
289,000,000  
Coal/Lignite
471,000,000  
334,000,000  
Natural gas
12,000,000  
28,000,000  
Spare parts
437,000,000  
413,000,000  
Other
20,000,000  
47,000,000  
Total Inventory
1,252,000,000  
 
1,111,000,000  
 
Inventory Write-down
19,000,000