Long-Term Debt (Schedule Of Debt) (Details) - USD ($) $ in Millions	Dec. 28, 2018	Jun. 29, 2018	Dec. 29, 2017		Nov. 24, 2014
Debt Instrument [Line Items]
Unamortized discount and issuance costs, Net	$ (13.4)		$ (4.3)
Total Debt	1,968.5		913.9
Less: Short-term debt	256.2		128.4	[1]
Long-term Debt	$ 1,712.3		785.5	[1]
Senior Notes [Member] | Two Thousand Twenty Three Senior Notes [Member]
Debt Instrument [Line Items]
Effective Interest Rate	4.36%
Debt Instrument, Face Amount	$ 300.0	$ 300.0	0.0
Total Debt	$ 300.0		0.0
Senior Notes [Member] | Two Thousand Twenty Eight Senior Notes [Member]
Debt Instrument [Line Items]
Effective Interest Rate	5.04%
Debt Instrument, Face Amount	$ 600.0	$ 600.0	0.0
Total Debt	$ 600.0		0.0
Senior Notes [Member] | Two Thousand Twenty Four Senior Notes [Member]
Debt Instrument [Line Items]
Effective Interest Rate	4.95%
Debt Instrument, Face Amount	$ 400.0		400.0		$ 400.0
Total Debt	400.0		400.0
Revolving Credit Facility [Member] | 2014 Credit Facility [Member]
Debt Instrument [Line Items]
Total Debt	$ 0.0		389.0
Uncommitted Facilities [Member]
Debt Instrument [Line Items]
Effective Interest Rate	2.16%
Total Debt	$ 255.9		128.0
Promissory Notes And Other [Member]
Debt Instrument [Line Items]
Promissory notes and other debt	$ 1.0		$ 1.2
Term Loan [Member] | Revolving Credit Facility [Member] | Term Loan, due May 2021 [Member]
Debt Instrument [Line Items]
Effective Interest Rate	4.00%
Total Debt	$ 425.0

[1] See Note 2 for a summary of adjustments