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Employee Benefit Plans - Additional Information (Details) - USD ($)
3 Months Ended 9 Months Ended
Jan. 01, 2022
Dec. 31, 2021
Oct. 01, 2023
Oct. 02, 2022
Oct. 01, 2023
Oct. 02, 2022
Sep. 08, 2023
Sep. 07, 2023
Defined Benefit Plan Disclosure [Line Items]                
Contributions         $ 10,311,000 $ 11,600,000    
Expected contributions for remainder of fiscal year     $ 4,400,000   $ 4,400,000      
RTS Packaging                
Defined Benefit Plan Disclosure [Line Items]                
Voting interest acquired     65.00%   65.00%   65.00%  
Interest held in acquiree before subsequent acquisition (percent)             35.00% 35.00%
Accumulated other comprehensive loss including define pension plan, before tax             $ 4,756,000  
Accumulated other comprehensive loss including define pension plan, after tax             3,543,000  
Retirement Plans                
Defined Benefit Plan Disclosure [Line Items]                
Settlement losses recognized     $ 16,000 $ 0 $ 765,000 430,000    
Sonoco Pension Plan for Inactive Participants | Retirement Plans                
Defined Benefit Plan Disclosure [Line Items]                
Settlement losses recognized         765,000 430,000    
RTS Packaging Pension Plan | Retirement Plans | United States                
Defined Benefit Plan Disclosure [Line Items]                
Defined benefit plan, benefit obligation             43,547,000  
Deferred compensation plan assets             $ 33,109,000  
Defined benefit plan, unfunded status obligation     10,438,000   $ 10,438,000      
Sonoco Savings Plan | United States                
Defined Benefit Plan Disclosure [Line Items]                
Contribution percentage minimum (percent)         1.00%      
Contribution percentage maximum (percent)         100.00%      
Defined contribution plan, employer matching contribution (percent) 100.00% 50.00%            
Employer matching contribution, percent of employees' gross pay (percent) 6.00% 4.00%            
Sonoco Retirement Contribution | Retirement Plans | United States                
Defined Benefit Plan Disclosure [Line Items]                
Contributions           $ 21,948,000    
Expected contributions for remainder of fiscal year     $ 0   $ 0      
Employer matching contribution, percent of employees' gross pay (percent)         4.00%      
Employer matching contribution, percent of employees' gross pay in excess of social security (percent)         4.00%