December 31,
Dollars in Millions
 
2016
 
2015
Land
 
$
107

 
$
107

Buildings
 
4,930

 
4,515

Machinery, equipment and fixtures
 
3,287

 
3,347

Construction in progress
 
849

 
662

Gross property, plant and equipment
 
9,173

 
8,631

Less accumulated depreciation
 
(4,193
)
 
(4,219
)
Property, plant and equipment
 
$
4,980

 
$
4,412