Retirement Plans - Assumptions Used to Determine Net Periodic Benefit Cost (Detail)	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
U.S.
Defined Benefit Plan Disclosure [Line Items]
U.S. Plans	3.50%	3.80%	4.00%
Expected long-term rate of return on plan assets	6.30%	7.00%	7.00%
International
Defined Benefit Plan Disclosure [Line Items]
U.S. Plans	2.40%	2.00%	1.70%
Expected long-term rate of return on plan assets	2.70%	3.10%	2.60%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets 2016 Amount			1.00%
Inflation factor	0.30%	0.30%	0.30%