Property, plant and equipment including equipment held for lease (Tables)

9 Months Ended

Sep. 30, 2023

Schedule of depreciation expense

Depreciation expense for the first nine months of 2023 and 2022 is summarized below (in millions).

	First Nine Months
	2023		2022
Insurance and other	$	1,776	$	1,690
Railroad, utilities and energy		5,302		4,646
	$	7,078	$	6,336

Insurance and Other [Member]

Schedule of property, plant and equipment

A summary of property, plant and equipment of our insurance and other businesses follows (in millions).

	September 30, 2023			December 31, 2022
Land, buildings and improvements	$	14,772		$	14,761
Machinery and equipment		27,973			26,690
Furniture, fixtures and other		5,443			4,847
		48,188			46,298
Accumulated depreciation		(26,430	)		(25,185	)
	$	21,758		$	21,113

Railroad, Utilities and Energy [Member]

Schedule of property, plant and equipment

A summary of property, plant and equipment of railroad and utilities and energy businesses follows (in millions). The utility generation, transmission and distribution systems and interstate natural gas pipeline assets are owned by regulated public utility and natural gas pipeline subsidiaries. Assets of PTC are included in land, buildings, improvements and other within the utilities and energy section below.

	September 30, 2023			December 31, 2022
Railroad:
Land, track structure and other roadway	$	69,731		$	67,350
Locomotives, freight cars and other equipment		16,125			16,031
Construction in progress		1,919			1,743
		87,775			85,124
Accumulated depreciation		(19,046	)		(17,899	)
		68,729			67,225
Utilities and energy:
Utility generation, transmission and distribution systems		93,667			92,759
Interstate natural gas pipeline assets		18,800			18,328
Independent power plants and other assets		14,668			14,650
Land, buildings, improvements and other		8,560			—
Construction in progress		8,947			5,357
		144,642			131,094
Accumulated depreciation		(39,915	)		(38,051	)
		104,727			93,043
	$	173,456		$	160,268