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Employee Benefit Plans - Additional Information (Details) - USD ($)		1 Months Ended	3 Months Ended			9 Months Ended
	Sep. 30, 2021	Oct. 31, 2021	Oct. 03, 2021	Jul. 04, 2021	Sep. 27, 2020	Oct. 03, 2021	Sep. 27, 2020
Defined Benefit Plan Disclosure [Line Items]
Contributions						$ 142,615,000	$ 12,292,000
Expected contributions for remainder of fiscal year			$ 6,500,000			6,500,000
Effect of curtailment loss							(31,000)
Sonoco Savings Plan
Defined Benefit Plan Disclosure [Line Items]
Employer matching contribution, percent of employees' gross pay (percent)	4.00%
Defined contribution plan, employer matching contribution (percent)	50.00%
Sonoco Savings Plan | Subsequent Event
Defined Benefit Plan Disclosure [Line Items]
Employer matching contribution, percent of employees' gross pay (percent)		6.00%
Defined contribution plan, employer matching contribution (percent)		100.00%
Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Settlement losses recognized			21,000		$ 0	547,652,000	661,000
Effect of curtailment loss			0		0	0	31,000
Pension Plan | Sonoco Retirement Contribution
Defined Benefit Plan Disclosure [Line Items]
Contributions						22,665,000	22,503,000
Expected contributions for remainder of fiscal year			0			0
Recognized expense related to the plan			$ 5,456,000		$ 5,589,000	17,290,000	17,283,000
Pension Plan | Sonoco Pension Plan for Inactive Participants
Defined Benefit Plan Disclosure [Line Items]
Contributions				$ 133,000,000
Non-cash settlement charges expected to be incurred next year				$ 547,291,000
Settlement losses recognized						$ 361,000	$ 661,000
Pension Plan | United States | Sonoco Retirement Contribution
Defined Benefit Plan Disclosure [Line Items]
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%

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