v3.26.1
Property, Plant and Equipment - Additional Information (Detail) - USD ($)
$ in Millions
Apr. 04, 2026
Dec. 31, 2025
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, net $ 15,596 $ 15,306
Accumulated depreciation 13,640 $ 13,380
Steel Mills [Member] | NJSM [Member]    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, net $ 221