Property, plant and equipment

12 Months Ended

Dec. 31, 2012

(10) Property, plant and equipment

Property, plant and equipment of our insurance and other businesses is comprised of the following (in millions).


	Ranges of estimated useful life		December 31,
	Ranges of estimated useful life		2012			2011
Land		—	$	1,048		$	940
Buildings and improvements		2 – 40 years		6,074			5,429
Machinery and equipment		3 – 20 years		15,436			13,589
Furniture, fixtures and other		2 – 20 years		2,736			2,397
Assets held for lease		12 – 30 years		6,731			5,997

				32,025			28,352
Accumulated depreciation				(12,837	)		(10,175	)

			$	19,188		$	18,177

Assets held for lease consist primarily of railroad tank cars, intermodal tank containers and other equipment in the transportation and equipment services businesses. As of December 31, 2012, the minimum future lease rentals to be received on the equipment lease fleet (including rail cars leased from others) were as follows (in millions): 2013 – $730; 2014 – $574; 2015 – $436; 2016 – $314; 2017 – $193; and thereafter – $245.

Property, plant and equipment of our railroad and our utilities and energy businesses is comprised of the following (in millions).


	Ranges of estimated useful life	December 31,
	Ranges of estimated useful life	2012			2011
Railroad:
Land	—	$	5,950		$	5,925
Track structure and other roadway	5 – 100 years		38,255			36,760
Locomotives, freight cars and other equipment	5 – 37 years		6,528			5,533
Construction in progress	—		963			885
Utilities and energy:
Utility generation, distribution and transmission system	5 – 80 years		42,682			40,180
Interstate pipeline assets	3 – 80 years		6,354			6,245
Independent power plants and other assets	3 – 30 years		1,860			1,106
Construction in progress	—		2,647			1,559

			105,239			98,193
Accumulated depreciation			(17,555	)		(15,979	)

		$	87,684		$	82,214

Railroad property, plant and equipment includes the land, other roadway, track structure and rolling stock (primarily locomotives and freight cars) of BNSF. The utility generation, distribution and transmission system and interstate pipeline assets are the regulated assets of public utility and natural gas pipeline subsidiaries.

- Definition

The entire disclosure for long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. This disclosure may include property plant and equipment accounting policies and methodology, a schedule of property, plant and equipment gross, additions, deletions, transfers and other changes, depreciation, depletion and amortization expense, net, accumulated depreciation, depletion and amortization expense and useful lives, income statement disclosures, assets held for sale and public utility disclosures.

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