Supplemental Balance Sheet Information (Balance Sheet Components) (Details) (USD $) In Millions, unless otherwise specified	Sep. 28, 2014	Dec. 29, 2013
Prepaid expenses and other current assets
Derivatives, Fair Value [Line Items]
Deferred tax assets	$ 37.3	$ 31.9
Other assets, net
Derivatives, Fair Value [Line Items]
Deferred compensation assets	48.8	44.7
Accrued liabilities
Derivatives, Fair Value [Line Items]
Salaries and wages	95.5	103.2
Customer deposits and credits	58.3	55.6
Other long-term liabilities
Derivatives, Fair Value [Line Items]
Deferred compensation liabilities	45.7	43.1
Deferred income taxes	$ 115.2	$ 112.3