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Property, Plant, and Equipment - Net
 9 Months Ended
Sep. 30, 2025
Property, Plant and Equipment [Abstract]  
Property, Plant, and Equipment - Net Property, Plant, and Equipment - Net
Property, plant and equipment - net consisted of the following:
September 30,December 31,
(Millions)20252024
Property, plant and equipment - at cost
Buildings and leasehold improvements
$832 $956 
Machinery and equipment
1,779 2,150 
Construction in progress568 504 
Gross property, plant and equipment3,179 3,610 
Accumulated depreciation(1,843)(1,988)
Property, plant and equipment - net$1,336 $1,622 
Depreciation expense consisted of the following:
Three months ended September 30,Nine months ended September 30,
(Millions)2025202420252024
Depreciation expense$37 $37 $117 $121