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Property, Plant and Equipment, Net
 12 Months Ended
Dec. 31, 2019
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment, Net Property, Plant and Equipment, Net.
Property, plant and equipment, net consists of the following:
December 31,
Useful Life20192018
(in years)(in millions)
Land$412  $416  
Buildings and improvements
3 - 40
915  865  
Machinery, equipment and furniture
2 - 30
5,348  5,208  
Assets leased to others
5 - 39
289  279  
Other finance leases
1 - 25
27  —  
Construction in progress218  221  
7,209  6,989  
Less: Accumulated depreciation and amortization(2,668) (2,301) 
Property, plant and equipment, net$4,541  $4,688  

Depreciation and amortization expense related to property, plant and equipment for the years ended December 31, 2019, 2018 and 2017 was $410 million, $398 million and $430 million, respectively.
See Note 5, “Fair Value Measurements,” for discussion regarding certain impairments to our property, plant and equipment.