Supplemental Disclosures - Summary of Restrictions on Cash and Cash Equivalents (Details) - USD ($) $ in Millions	Jun. 28, 2019	Dec. 31, 2018	Jun. 29, 2018	Dec. 31, 2017
Supplemental Cash Flow Elements [Abstract]
Cash and cash equivalents	$ 885.2	$ 1,069.6	$ 850.2	$ 949.2
Restricted cash (included in other current assets)	13.9	17.5	17.5	17.4
Cash, cash equivalents and restricted cash in Consolidated Statements of Cash Flows	$ 899.1	$ 1,087.1	$ 867.7	$ 966.6

Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section 45
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Topic 230
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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