Employee Benefit Plans Employee Benefit Plans Narrative 1 (Details) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Jul. 31, 2005	Dec. 30, 2017	Dec. 31, 2016	Jan. 02, 2016
Employee Benefit Plans [Line Items]
Investment Horizon of Greater Than		10 years
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Tax		$ 16.3	$ 19.4
Domestic Pension Plan Benefits Percentage Of The Projected Benefit Obligation		74.00%	75.00%
Domestic Defined Benefit Plan Cash Contributions By Employer		$ 1.0	$ 0.6
Foreign Defined Benefit Plan Cash Contributions By Employer		$ 3.3	4.7
Maximum [Member]
Employee Benefit Plans [Line Items]
Multiemployer Plan, Contributions To Individual Plan, Percent		5.00%
Investment Objectives Achievement Period		7 years
Minimum [Member]
Employee Benefit Plans [Line Items]
Investment Objectives Achievement Period		5 years
Central States, Southeast and Southwest Areas Pension Plan [Member]
Employee Benefit Plans [Line Items]
Multiemployer Plans, IRS Extended Amortization Period	10 years
UNITED STATES
Employee Benefit Plans [Line Items]
Defined Contribution Plan, Employer Contribution Amount		$ 9.6	9.2	$ 9.3
UNITED STATES | Maximum [Member] | Equity Securities [Member]
Employee Benefit Plans [Line Items]
Defined Benefit Plan, Target Plan Asset Allocations Range Minimum (Deprecated 2017-01-31)		.65
UNITED STATES | Maximum [Member] | Fixed Income Securities [Member]
Employee Benefit Plans [Line Items]
Defined Benefit Plan, Target Plan Asset Allocations Range Minimum (Deprecated 2017-01-31)		.80
UNITED STATES | Minimum [Member] | Equity Securities [Member]
Employee Benefit Plans [Line Items]
Defined Benefit Plan, Target Plan Asset Allocations Range Minimum (Deprecated 2017-01-31)		.20
UNITED STATES | Minimum [Member] | Fixed Income Securities [Member]
Employee Benefit Plans [Line Items]
Defined Benefit Plan, Target Plan Asset Allocations Range Minimum (Deprecated 2017-01-31)		.35
Foreign Plan [Member]
Employee Benefit Plans [Line Items]
Defined Contribution Plan, Employer Contribution Amount		$ 7.5	$ 6.2	$ 3.0