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Property, Plant and Equipment, Net (Tables)
6 Months Ended
Jun. 30, 2022
Property, Plant and Equipment, Net.  
Schedule of property, plant and equipment

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June 30,

​

December 31,

($ in millions)

    

2022

    

2021

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Land

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$

185

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$

167

Buildings

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​

2,209

​

​

2,081

Machinery and equipment

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​

7,177

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​

6,876

Construction-in-progress

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​

1,341

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​

1,179

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​

​

10,912

​

​

10,303

Accumulated depreciation

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​

(4,283)

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​

(3,801)

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​

$

6,629

​

$

6,502