Pension Plans and Postretirement Benefits (Benefit Obligation and Net Benefit Cost) (Details) - Pension Benefits	12 Months Ended
	Dec. 29, 2019	Dec. 30, 2018	Dec. 31, 2017
United States
Defined Benefit Plan Disclosure [Line Items]
Weighted average discount rate	4.59%	4.02%	4.54%
Weighted average increase in future compensation levels	2.75%	2.75%	2.75%
Expected weighted-average long-term rate of return	7.80%	8.00%	8.00%
Discount rate	3.41%	4.59%	4.02%
Salary growth rate	2.75%	2.75%	2.75%
Foreign Plan | Minimum
Defined Benefit Plan Disclosure [Line Items]
Weighted average discount rate	0.90%	0.70%	0.60%
Weighted average increase in future compensation levels	1.00%	1.00%	1.00%
Expected weighted-average long-term rate of return	1.00%	1.00%	1.00%
Discount rate	0.20%	0.90%	0.70%
Salary growth rate	1.00%	1.00%	1.00%
Foreign Plan | Maximum
Defined Benefit Plan Disclosure [Line Items]
Weighted average discount rate	2.60%	2.40%	2.50%
Weighted average increase in future compensation levels	2.50%	2.50%	2.50%
Expected weighted-average long-term rate of return	3.80%	4.50%	5.90%
Discount rate	1.80%	2.60%	2.40%
Salary growth rate	2.50%	2.50%	2.50%