Comprehensive Income and Equity - Dividends Declared and Paid (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2018	Apr. 01, 2017
Equity [Abstract]
Dividends declared	$ 47.7	$ 35.7
Dividends paid	$ 50.7	$ 36.7

Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3291-108585

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