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Property, Plant and Equipment, Net (Tables)
3 Months Ended
Mar. 31, 2025
Property, Plant and Equipment, Net  
Schedule of property, plant and equipment

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March 31,

​

December 31,

($ in millions)

    

2025

    

2024

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Land

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$

206

​

$

198

Buildings

​

​

1,876

​

​

1,794

Machinery and equipment

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​

7,745

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​

7,450

Construction-in-progress

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​

796

​

​

836

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​

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10,623

​

​

10,278

Accumulated depreciation

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​

(4,246)

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​

(4,105)

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​

$

6,377

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$

6,173