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Property, Plant and Equipment
12 Months Ended
Dec. 31, 2011
Property, Plant and Equipment  
Property, Plant and Equipment

 

Note G.

Property, Plant and Equipment

 

($ in millions)

 

At December 31:

 

2011

 

2010

 

Land and land improvements

 

$

786

 

$

777

 

Buildings and building improvements

 

9,531

 

9,414

 

Plant, laboratory and office equipment

 

26,843

 

26,676

 

Plant and other property—gross

 

37,160

 

36,867

 

Less: Accumulated depreciation

 

24,703

 

24,435

 

Plant and other property—net

 

12,457

 

12,432

 

Rental machines

 

2,964

 

3,422

 

Less: Accumulated depreciation

 

1,538

 

1,758

 

Rental machines—net

 

1,426

 

1,665

 

Total—net

 

$

13,883

 

$

14,096