The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement.

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For each income statement presented, the amount charged to expense for amortization of capitalized computer software costs.

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- Definition

Gross amount, at the balance sheet date, of long-lived physical assets used in the normal conduct of business and not intended for resale. This can 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.

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- Definition

Tangible assets that are held by an entity for use in the production or supply of goods and services, for rental to others, or for administrative purposes and that are expected to provide economic benefit for more than one year; net of accumulated depreciation. 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.

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Property and Equipment (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Property and Equipment [Line Items]
Property, plant and equipment, gross	$ 1,671.6	$ 1,529.4
Accumulated depreciation and amortization	922.4	830.5
Property, Plant and Equipment, Net	749.2	698.9
Amortization	15.9	12.8	13.6
Land Member
Property and Equipment [Line Items]
Property, plant and equipment, gross	69.5	76.1
Buildings [Member]
Property and Equipment [Line Items]
Property, plant and equipment, gross	232.8	210.6
Leasehold improvements Member
Property and Equipment [Line Items]
Property, plant and equipment, gross	203.7	196.4
Vehicles [Member]
Property and Equipment [Line Items]
Property, plant and equipment, gross	389.5	349.7
Capitalized software [Member]
Property and Equipment [Line Items]
Property, plant and equipment, gross	147.8	116.3
Other machinery and equipment [Member]
Property and Equipment [Line Items]
Property, plant and equipment, gross	$ 628.3	$ 580.3