Acquisition Pro Forma Information (Details) - Kelway TopCo Limited [Member] - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Pro Forma Information [Line Items]
Business Acquisition, Pro Forma Revenue	$ 3,571.0	$ 3,474.6	$ 10,091.4	$ 9,661.4
Business Acquisition, Pro Forma Net Income (Loss)	$ 111.1	$ 54.3	$ 287.5	$ 192.0

The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(2)-(3)

-URI http://asc.fasb.org/extlink&oid=56956515&loc=d3e1392-128463

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration