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Property, Plant and Equipment, Net (Tables)
9 Months Ended
Sep. 30, 2020
Property, Plant and Equipment, Net.  
Schedule of property, plant and equipment

September 30,

December 31,

($ in millions)

    

2020

    

2019

Land

$

160

$

153

Buildings

1,533

1,433

Machinery and equipment

5,869

5,513

Construction-in-progress

734

434

8,296

7,533

Accumulated depreciation

(3,401)

(3,063)

$

4,895

$

4,470