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Joint Ownership of Generating and Transmission Facilities
 12 Months Ended
Dec. 31, 2019
Joint Ownership Of Generating And Transmission Facilities [Abstract]  
Joint Ownership of Generating and Transmission Facilities JOINT OWNERSHIP OF GENERATING AND TRANSMISSION FACILITIES
The Duke Energy Registrants maintain ownership interests in certain jointly owned generating and transmission facilities. The Duke Energy Registrants are entitled to a share of the generating capacity and output of each unit equal to their respective ownership interests. The Duke Energy Registrants pay their ownership share of additional construction costs, fuel inventory purchases and operating expenses. The Duke Energy Registrants share of revenues and operating costs of the jointly owned facilities is included within the corresponding line in the Consolidated Statements of Operations. Each participant in the jointly owned facilities must provide its own financing.
The following table presents the Duke Energy Registrants' interest of jointly owned plant or facilities and amounts included on the Consolidated Balance Sheets. All facilities are operated by the Duke Energy Registrants and are included in the Electric Utilities and Infrastructure segment.
 
December 31, 2019
 
 
 
 
 
 
 
Construction

 
Ownership

 
Property, Plant

 
Accumulated

 
Work in

(in millions except for ownership interest)
Interest

 
and Equipment

 
Depreciation

 
Progress

Duke Energy Carolinas
 

 
 
 
 
 
 
Catawba (units 1 and 2)(a)
19.25
%
 
$
1,011

 
$
510

 
$
21

W.S. Lee CC(b)
87.27
%
 
609

 
32

 
1

Duke Energy Indiana
 

 
 

 
 

 
 

Gibson (unit 5)(c)
50.05
%
 
410

 
183

 
3

Vermillion(d)
62.50
%
 
172

 
119

 
—

Transmission and local facilities(c)
Various

 
5,421

 
1,436

 
172


(a)
Jointly owned with North Carolina Municipal Power Agency Number 1, NCEMC and PMPA.
(b)
Jointly owned with NCEMC.
(c)
Jointly owned with WVPA and IMPA.
(d)
Jointly owned with WVPA.