Employee Benefit Plans Employee Benefit Plans Narrative 1 (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended			1 Months Ended
	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012	Jul. 31, 2005	Jan. 07, 2014
Employee Benefit Plans [Line Items]
Investment Horizon of Greater Than	10 years
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Tax	$ 21.3	$ 10.4
Domestic Pension Plan Benefits Percentage Of The Projected Benefit Obligation	37.00%	97.00%
Domestic Defined Benefit Plan Cash Contributions By Employer	0.3	4.0
Foreign Defined Benefit Plan Cash Contributions By Employer	6.8	0
Vion Ingredients [Member]
Employee Benefit Plans [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Pension and Other Postretirement Benefit Plan Obligations					28.9
United States Postretirement Benefit Plan of US Entity [Member]
Employee Benefit Plans [Line Items]
Defined Contribution Plan, Employer Contribution Amount	9.2	8.2	7.2
Foreign Pension Plan [Member]
Employee Benefit Plans [Line Items]
Defined Contribution Plan, Employer Contribution Amount	$ 3.5	$ 0.1
Equity Securities [Member] | Domestic [Member]
Employee Benefit Plans [Line Items]
Defined Benefit Plan, Target Plan Asset Allocations Range Maximum	65.00%
Defined Benefit Plan, Target Plan Asset Allocations Range Minimum	20.00%
Fixed Income Securities [Member] | Domestic [Member]
Employee Benefit Plans [Line Items]
Defined Benefit Plan, Target Plan Asset Allocations Range Maximum	80.00%
Defined Benefit Plan, Target Plan Asset Allocations Range Minimum	35.00%
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