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Employee Benefit Plans Employee Benefit Plans Narrative 1 (Details) $ in Millions | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Jul. 31, 2005 | Dec. 31, 2016 USD ($) plan | Jan. 02, 2016 USD ($) | Jan. 03, 2015 USD ($) | Jan. 07, 2014 USD ($)
Employee Benefit Plans [Line Items] |  |  |  |  |
Investment Horizon of Greater Than |  | 10 years |  |  |
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Tax |  | $ 19.4 | $ 19.7 |  |
Defined Benefit Plan, Number of Plans Terminated | plan |  | 2 |  |  |
Domestic Pension Plan Benefits Percentage Of The Projected Benefit Obligation |  | 75.00% | 76.00% |  |
Domestic Defined Benefit Plan Cash Contributions By Employer |  | $ 0.6 | $ 0.4 |  |
Foreign Defined Benefit Plan Cash Contributions By Employer |  | 4.7 | 9.2 |  |
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 | 9.3 | $ 9.2 |
Foreign Pension Plan [Member] |  |  |  |  |
Employee Benefit Plans [Line Items] |  |  |  |  |
Defined Contribution Plan, Employer Contribution Amount |  | $ 6.2 | $ 3.0 | $ 3.5 |
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 |  |  |  |

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