Business Transformation Expenses (Details 1) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Schedule of Business Transformation Expenses in Income Statement [Abstract]
Selling, general and administrative	$ 298.3	$ 321.2	$ 597.4	$ 583.6
Total expenses	1,127.5	1,163.5	2,252.0	2,225.8
Business Transformation [Member]
Schedule of Business Transformation Expenses in Income Statement [Abstract]
Selling, general and administrative		15.5		25.6
Total expenses		35.0		49.3
Total expenses, net of tax		22.7		32.0
Service [Member]
Schedule of Business Transformation Expenses in Income Statement [Abstract]
Cost of services	$ 829.2	842.3	$ 1,654.6	1,642.2
Service [Member] \| Business Transformation [Member]
Schedule of Business Transformation Expenses in Income Statement [Abstract]
Cost of services		$ 19.5		$ 23.7

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
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-Subparagraph (SX 210.5-03.2(a),(d))
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Total costs of sales and operating expenses for the period.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Topic 330
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Total Business Transformation expenses recognized in the Income Statement, Net of Tax.

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Schedule of Business Transformation Expenses in Income Statement [Abstract]

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