2016 Business Transformation Program (Narrative) (Details) - 2016 Business Transformation Program [Member] - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Sep. 30, 2015	Sep. 30, 2015
Restructuring Cost and Reserve [Line Items]
Expected pre-tax charges	$ 8.5	$ 10.9
Minimum [Member]
Restructuring Cost and Reserve [Line Items]
Expected cash expenditure	17.0
Expected pre-tax charges, primarily during Fiscal 2016	23.0
Maximum [Member]
Restructuring Cost and Reserve [Line Items]
Expected cash expenditure	22.0
Expected pre-tax charges, primarily during Fiscal 2016	$ 28.0

Discloses the amount charged against the accrued restructuring reserves, or earnings if not previously accrued, during the period for the specified type of restructuring cost.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 420

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SAB TOPIC 5.P.4(b))

-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 420

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

-Section P

-Subsection 3, 4

Name:	us-gaap_RestructuringAndRelatedCostIncurredCost
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration