Financial Instruments and Fair Value Measurements (Schedule of Carrying Amount and Fair Value of Long-term Debt) (Details) - USD ($) $ in Millions	Jun. 29, 2018	Dec. 29, 2017
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Long-term Debt, Current Maturities	$ 22.5	$ 314.2
Long term debt, fair value	5,947.5	6,348.8
Long-term Debt	6,408.1	6,492.6
Total Debt	6,430.6	6,806.6
Receivable securitization, Maturity Date of July 2020
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Long term debt, fair value	240.0	200.0
Long-term Debt	240.0	200.0
Secured Debt \| Term Loan due 2024
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Long-term Debt, Current Maturities	16.4	14.0
Loans Payable	1,617.9	1,851.2
Long-term Debt	1,601.5	1,837.2
Loans Payable, Fair Value Disclosure	1,586.5	1,848.7
Secured Debt \| 2017 Revolving Credit Facility
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Long term debt, fair value	450.0	900.0
Long-term Debt	450.0	900.0
Secured Debt \| Term Loan due 2025
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Long-term Debt, Current Maturities	6.0	0.0
Loans Payable	598.5	0.0
Long-term Debt	592.5	0.0
Loans Payable, Fair Value Disclosure	589.5	0.0
Unsecured Debt \| 3.50% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Long-term Debt, Current Maturities	0.0	300.0
Long term debt, fair value	0.0	299.1
Unsecured Debt \| 4.88% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Long term debt, fair value	689.2	675.2
Long-term Debt	700.0	700.0
Unsecured Debt \| 5.75% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Long term debt, fair value	796.1	804.8
Long-term Debt	884.0	884.0
Unsecured Debt \| 4.75% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Long term debt, fair value	407.1	412.4
Long-term Debt	500.2	526.5
Unsecured Debt \| 5.625% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Long term debt, fair value	609.1	628.8
Long-term Debt	731.4	738.0
Unsecured Debt \| 5.50% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Long term debt, fair value	563.0	564.5
Long-term Debt	692.1	692.1
Unsecured Debt \| ACOA Loan due 2028
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Long-term Debt, Current Maturities	0.1	0.0
Loans Payable	1.7
Long-term Debt	1.6	0.0
Loans Payable, Fair Value Disclosure	1.7	0.0
Debentures \| 9.50% Debenture
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Long term debt, fair value	10.9	10.9
Long-term Debt	10.4	10.4
Debentures \| 8.00% Debenture
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Long term debt, fair value	4.4	4.4
Long-term Debt	$ 4.4	$ 4.4

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

Name:	us-gaap_DebtInstrumentCarryingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Represents the aggregate of total long-term debt, including current maturities and short-term debt.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtLongtermAndShorttermCombinedAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Including the current and noncurrent portions, aggregate carrying value as of the balance sheet date of loans payable (with maturities initially due after one year or beyond the operating cycle if longer).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16)(a)(2))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

+ Details

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

- Definition

Fair value portion of contractual obligation to pay money on demand or on fixed or determinable dates.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

+ Details

Name:	us-gaap_LongTermDebtCurrent
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

+ Details

Name:	us-gaap_LongTermDebtFairValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
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