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Employee Benefit Plans - Additional Information (Details) - USD ($) |  | 3 Months Ended
--- | --- | ---
Apr. 28, 2021 | Apr. 04, 2021 | Mar. 29, 2020
Defined Benefit Plan Disclosure [Line Items] |  |  |
Contributions |  | $ 3,673,000 | $ 2,309,000
Expected contributions for remainder of fiscal year |  | 13,500,000 |
Settlement losses recognized |  |  | 623,000
Pension Plan |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Settlement losses recognized |  | 0 | 623,000
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 |
Recognized expense related to the plan |  | 6,335,000 | $ 5,978,000
Pension Plan | Sonoco Pension Plan for Inactive Participants |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Expected contributions for remainder of fiscal year |  | 150,000,000 |
Estimated reduction of tax payments |  | 38,000,000 |
Non-cash settlement charges expected to be incurred next year |  | $ 560,000,000 |
Pension Plan | Sonoco Pension Plan for Inactive Participants | Subsequent Event |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Contributions | $ 50,000,000 |  |
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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- Definition Amount of contribution received by defined benefit plan from employer which increases plan assets. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(01) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e2709-114920 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(ii) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 Reference 5: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=118257860&loc=d3e4587-114921 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(01) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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