Fair Value Measurements (Details) - USD ($) $ in Millions	Apr. 02, 2020	Dec. 31, 2019	Jun. 27, 2019
Carrying amount and estimated fair value of long term debt
Carrying Amount	$ 2,822.2	$ 2,827.8
Fair Value	2,578.6	2,885.7
Long-term Line of Credit, Noncurrent	800.0	800.0	$ 800.0
Lines of Credit, Fair Value Disclosure		800.0	$ 800.0
Secured Debt Term A [Member]
Debt Instrument [Line Items]
Secured Debt, Current	22.7	22.8
Secured Long-term Debt, Noncurrent	409.7	415.7
Carrying amount and estimated fair value of long term debt
Carrying Amount	432.4	438.5
Fair Value	404.9	440.1
Senior unsecured notes due 2022 [Member]
Carrying amount and estimated fair value of long term debt
Fair Value	286.3	298.4
Senior Notes, Noncurrent		299.1
Senior Unsecured Notes Due 2023 [Domain]
Carrying amount and estimated fair value of long term debt
Fair Value	254.0	307.2
Senior Notes, Noncurrent	298.4	298.3
Senior Unsecured Notes Due 2026 [Member]
Carrying amount and estimated fair value of long term debt
Fair Value	257.1	305.6
Senior Notes, Noncurrent	297.9	297.8
SeniorUnsecuredNotesDue2028 [Member] [Member]
Carrying amount and estimated fair value of long term debt
Fair Value	$ 576.3	734.4
Senior Notes, Noncurrent		$ 694.1

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Fair value portion of contractual arrangement with a lender under which borrowings can be made up to a specific amount at any point in time.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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The carrying value as of the balance sheet date of the noncurrent portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Carrying value as of the balance sheet date of the portion of long-term, collateralized debt obligations due within one year or the operating cycle, if longer. Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

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Carrying amount of collateralized debt obligations with maturities initially due after one year or beyond the operating cycle, if longer, excluding the current portion. Obligations include, but not limited to, mortgage loans, chattel loans, and other borrowings secured by assets.

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