Property And Equipment (Summary Of Property And Equipment) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Property and equipment, gross	$ 3,220.5	$ 2,655.2
Accumulated depreciation and amortization	(1,482.2)	(1,237.1)
Property and equipment, net	1,738.3	1,418.1
Land and Improvements [Member]
Property and equipment, gross	45.9	52.3
Buildings and Components [Member]
Property and equipment, gross	406.0	392.1
Data Processing Equipment, Furniture and Other Equipment [Member]
Property and equipment, gross	792.6	725.6
Computer Software, Purchased and Internally Developed [Member]
Property and equipment, gross	1,672.1	1,295.0
Leasehold Improvements [Member]
Property and equipment, gross	$ 303.9	$ 190.2

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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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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