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Non Routine Expenses Net.

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The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented. If there is no historical data in the report, use the filing date. The format of the date is CCYY-MM-DD.

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- Definition

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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-Publisher FASB
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This item represents liabilities associated with restructuring or exit activities of the acquiree, existing at the acquisition date (present liabilities of the acquiree).

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Amount of costs incurred to date for the specified restructuring cost.

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Amount of expected cost remaining for the specified restructuring cost.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Restructuring (Textuals) (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
Restructuring (Textuals) (Details) - USD ($) $ in Millions	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2019	Aug. 15, 2016
Unusual or Infrequent Item [Line Items]
Restructuring Charges	$ 12.9	$ 0.4
Document Period End Date	Mar. 31, 2017
Impairment of assets	$ (3.1)	0.0
Multi-Year Transformation Plan [Member]
Unusual or Infrequent Item [Line Items]
Restructuring Charges		0.4
Delta Program [Member]
Unusual or Infrequent Item [Line Items]
Liabilities acquired				$ 45.5
DN2020 Plan [Member]
Unusual or Infrequent Item [Line Items]
Restructuring Charges	12.9
Restructuring and Related Cost, Expected Cost Remaining	70.0
Strategic Alliance Plan [Member]
Unusual or Infrequent Item [Line Items]
Restructuring and Related Cost, Expected Cost Remaining	1.0
Segment Reconciling Items [Member]
Unusual or Infrequent Item [Line Items]
Restructuring Charges	12.9	0.4
Non routine (expenses) income net	(77.4)	(14.1)
Subsequent Event [Member] \| DN2020 Plan [Member]
Unusual or Infrequent Item [Line Items]
Anticipated Annual Synergies			$ 200.0
Severance
Unusual or Infrequent Item [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	64.6
Restructuring Charges	12.9	0.4
Severance \| Delta Program [Member]
Unusual or Infrequent Item [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	3.2
Severance \| DN2020 Plan [Member]
Unusual or Infrequent Item [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	55.7
Severance \| Strategic Alliance Plan [Member]
Unusual or Infrequent Item [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	5.7
Severance \| Services Segment [Member]
Unusual or Infrequent Item [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	28.2
Restructuring Charges	4.7	0.0
Severance \| Services Segment [Member] \| Delta Program [Member]
Unusual or Infrequent Item [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	0.1
Severance \| Services Segment [Member] \| DN2020 Plan [Member]
Unusual or Infrequent Item [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	26.1
Severance \| Services Segment [Member] \| Strategic Alliance Plan [Member]
Unusual or Infrequent Item [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	2.0
Severance \| Software Segment [Member]
Unusual or Infrequent Item [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	7.2
Restructuring Charges	0.1	0.3
Severance \| Software Segment [Member] \| Delta Program [Member]
Unusual or Infrequent Item [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	1.8
Severance \| Software Segment [Member] \| DN2020 Plan [Member]
Unusual or Infrequent Item [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	5.3
Severance \| Software Segment [Member] \| Strategic Alliance Plan [Member]
Unusual or Infrequent Item [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	0.1
Severance \| Systems Segment [Member]
Unusual or Infrequent Item [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	19.5
Restructuring Charges	1.8	0.1
Severance \| Systems Segment [Member] \| Delta Program [Member]
Unusual or Infrequent Item [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	0.0
Severance \| Systems Segment [Member] \| DN2020 Plan [Member]
Unusual or Infrequent Item [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	15.9
Severance \| Systems Segment [Member] \| Strategic Alliance Plan [Member]
Unusual or Infrequent Item [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	3.6
Severance \| Corporate, Non-Segment [Member]
Unusual or Infrequent Item [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	9.7
Restructuring Charges	6.3	$ 0.0
Severance \| Corporate, Non-Segment [Member] \| Delta Program [Member]
Unusual or Infrequent Item [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	1.3
Severance \| Corporate, Non-Segment [Member] \| DN2020 Plan [Member]
Unusual or Infrequent Item [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	8.4
Severance \| Corporate, Non-Segment [Member] \| Strategic Alliance Plan [Member]
Unusual or Infrequent Item [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	$ 0.0