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Property, Plant and Equipment
 12 Months Ended
Dec. 31, 2021
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment Property, Plant and Equipment
($ in millions)Useful Lives (years)20212020
Land and land improvements1-30$570 $541 
Buildings20-401,769 1,673 
Machinery and equipment5-253,949 3,794 
Other3-201,177 1,123 
Construction in progress 509 345 
Total$7,974 $7,476 
Less: accumulated depreciation4,532 4,349 
Net
 $3,442 $3,127