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Property, Plant and Equipment
 12 Months Ended
Dec. 31, 2022
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)20222021Lives
Facilities and equipment$1,727 $1,742 
1-40 years
Land and improvements263 271 
Nuclear fuel271 222 
5 years
Hardware and office equipment and furnishings712 637 
2-10 years
Construction in progress197 124  
Total property, plant, and equipment3,170 2,996  
Accumulated depreciation(1,478)(1,308) 
Net property, plant, and equipment $1,692 $1,688  
The Company recorded long-lived asset impairments during the years ended December 31, 2022 and 2021, as further described in Note 11, Asset Impairments. Depreciation expense of property, plant and equipment recorded during the years ended December 31, 2022, 2021 and 2020 was $291 million, $384 million and $295 million, respectively.