Property, plant and equipment (Tables)

12 Months Ended

Dec. 31, 2023

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment at Cost and Accumulated Depreciation

At the end of fiscal years 2023 and 2022, property, plant and equipment at cost and accumulated depreciation were:

(Dollars in Millions)	2023	2022
Land and land improvements	$795	784
Buildings and building equipment	12,375	11,470
Machinery and equipment	28,979	26,603
Construction in progress	5,627	4,677
Total property, plant and equipment, gross	$47,776	43,534
Less accumulated depreciation	27,878	25,552
Total property, plant and equipment, net	$19,898	17,982