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Postemployment Benefits Pension Plans - Weighted Average Assumptions Used, Pension Benefit Obligation (Details) - Pension Plans
Dec. 28, 2019
Dec. 29, 2018
U.S. Plans    
Defined Benefit Plan Disclosure [Line Items]    
Discount rate 3.40% 4.40%
Rate of compensation increase 4.10% 4.10%
Non-U.S. Plans    
Defined Benefit Plan Disclosure [Line Items]    
Discount rate 2.00% 2.90%
Rate of compensation increase 3.70% 3.90%