Rendering

Component: (Network and Table)
Network
1063 - Disclosure - Property, Plant and Equipment - Capital Lease Assets Recorded within Property, Plant and Equipment (Detail)
(http://www.pepcoholdings.com/taxonomy/role/DisclosurePropertyPlantAndEquipmentCapitalLeaseAssetsRecordedWithinPropertyPlantAndEquipment)
TableLeases [Table]
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0001135971 (http://www.sec.gov/CIK)
Leases [Line Items]Period [Axis]
2013-12-31
2012-12-31
Legal Entity [Axis]Legal Entity [Axis]
Potomac Electric Power Co [Member]Entity [Domain]Potomac Electric Power Co [Member]Entity [Domain]
Property Plant And Equipment By Type [Axis]Property Plant And Equipment By Type [Axis]Property Plant And Equipment By Type [Axis]Property Plant And Equipment By Type [Axis]
Electric Transmission Equipment [Member]Electric Distribution Equipment [Member]General Equipment [Member]Property Plant And Equipment Type [Domain]Electric Transmission Equipment [Member]Electric Distribution Equipment [Member]General Equipment [Member]Property Plant And Equipment Type [Domain]Electric Transmission Equipment [Member]Electric Distribution Equipment [Member]General Equipment [Member]Property Plant And Equipment Type [Domain]Electric Transmission Equipment [Member]Electric Distribution Equipment [Member]General Equipment [Member]Property Plant And Equipment Type [Domain]
Original Cost
76,000,000  
76,000,000  
3,000,000  
155,000,000  
76,000,000  
76,000,000  
3,000,000  
155,000,000  
76,000,000  
76,000,000  
3,000,000  
155,000,000  
76,000,000  
76,000,000  
3,000,000  
155,000,000  
Accumulated Amortization
41,000,000  
42,000,000  
3,000,000  
86,000,000  
41,000,000  
42,000,000  
3,000,000  
86,000,000  
37,000,000  
37,000,000  
3,000,000  
77,000,000  
37,000,000  
37,000,000  
3,000,000  
77,000,000  
Net Book Value
35,000,000  
 
34,000,000  
 
xsi:nil  
 
69,000,000  
 
35,000,000  
 
34,000,000  
 
xsi:nil  
 
69,000,000  
 
39,000,000  
 
39,000,000  
 
xsi:nil  
 
78,000,000  
 
39,000,000  
 
39,000,000  
 
xsi:nil  
 
78,000,000