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Property, Plant and Equipment (Tables)
 3 Months Ended
Mar. 31, 2018
Property, Plant and Equipment  
Schedule of property, plant and equipment

 

 

 

 

 

 

 

 

 

March 31,

 

December 31,

($ in millions)

    

2018

    

2017

 

 

 

 

 

 

 

Land

 

$

174

 

$

172

Buildings

 

 

1,391

 

 

1,390

Machinery and equipment

 

 

5,378

 

 

5,282

Construction-in-progress

 

 

666

 

 

542

 

 

 

7,609

 

 

7,386

Accumulated depreciation

 

 

(2,882)

 

 

(2,776)

 

 

$

4,727

 

$

4,610