XML 51 R18.htm IDEA: XBRL DOCUMENT v3.22.0.1
Property, Plant and Equipment
 12 Months Ended
Dec. 31, 2021
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment Property, Plant and Equipment
The Company's major classes of property, plant, and equipment were as follows:
 As of December 31,Depreciable
(In millions)20212020Lives
Facilities and equipment$1,742 $3,365 
1-40 years
Land and improvements271 329 
Nuclear fuel222 239 
5 years
Hardware and office equipment and furnishings637 453 
2-10 years
Construction in progress124 97  
Total property, plant, and equipment2,996 4,483  
Accumulated depreciation(1,308)(1,936) 
Net property, plant, and equipment $1,688 $2,547  
The Company recorded long-lived asset impairments during the years ended December 31, 2021 and 2020, as further described in Note 11, Asset Impairments. Depreciation expense of property, plant and equipment recorded during the years ended December 31, 2021, 2020 and 2019 was $384 million, $295 million and $271 million, respectively.