Property, Equipment And Software (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Property, Plant and Equipment [Line Items]
Property, Equipment and Software, Gross	$ 979.6us-gaap_PropertyPlantAndEquipmentGross	$ 900.2us-gaap_PropertyPlantAndEquipmentGross
Less: Accumulated Depreciation	(577.0)	(549.4)
Property, Equipment and Software, Net	402.6us-gaap_PropertyPlantAndEquipmentNet	350.8us-gaap_PropertyPlantAndEquipmentNet
Depreciation expense	76.8us-gaap_DepreciationNonproduction	71.3us-gaap_DepreciationNonproduction	65.4us-gaap_DepreciationNonproduction
Capitalized IT software development costs was written off	11.7
Technology and Other Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Equipment and Software, Gross	268.9	266.5
Computer Software, Intangible Asset [Member]
Property, Plant and Equipment [Line Items]
Property, Equipment and Software, Gross	368.3	327.8
Land and Buildings [Member]
Property, Plant and Equipment [Line Items]
Property, Equipment and Software, Gross	62.3	65.8
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Equipment and Software, Gross	196.1	185.7
Work in Process [Member]
Property, Plant and Equipment [Line Items]
Property, Equipment and Software, Gross	$ 84.0	$ 54.4

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 10

-Section 50

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-Publisher SEC

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For each income statement presented, the amount charged to expense for write-downs of capitalized computer software costs to net realizable value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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The expense recognized in the current period that allocates the cost of nonproduction tangible assets over their useful lives.

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Amount before accumulated depreciation, depletion and amortization of 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, and furniture and fixtures.

+ References

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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