Properties and Equipment (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Properties and Equipment
Properties and equipment, gross	$ 2,706.7	$ 2,555.6
Accumulated depreciation and amortization	(1,876.8)	(1,785.1)
Properties and equipment, net	829.9	770.5	723.5
Depreciation and lease amortization expense related to properties and equipment	108.6	108.2	110.0
Rental expense for operating leases	28.4	26.1	20.5
Land
Properties and Equipment
Properties and equipment, gross	20.0	19.9
Building [Member]
Properties and Equipment
Properties and equipment, gross	524.3	500.3
Information technology and equipment [Member]
Properties and Equipment
Properties and equipment, gross	172.0	146.7
Machinery, equipment and other
Properties and Equipment
Properties and equipment, gross	1,883.2	1,786.8
Projects under construction
Properties and Equipment
Properties and equipment, gross	107.2	101.9
Capitalized interest cost
Properties and Equipment
Properties and equipment, net	$ 1.2	$ 0.1	$ 0.1

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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The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.

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- Definition

Gross amount of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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- Definition

Amount, net of accumulated depreciation, depletion and amortization, of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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