Sonoco Products (SON) 10-Q 3 Aug 21 2021 Q2 Quarterly report Financial data

Cover Page

Cover Page - shares	6 Months Ended
	Jul. 04, 2021	Jul. 23, 2021
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jul. 4, 2021
Document Transition Report	false
Entity File Number	001-11261
Entity Registrant Name	SONOCO PRODUCTS COMPANY
Entity Incorporation, State or Country Code	SC
Entity Tax Identification Number	57-0248420
Entity Address, Address Line One	1 N. Second St.
Entity Address, City or Town	Hartsville
Entity Address, State or Province	SC
Entity Address, Postal Zip Code	29550
City Area Code	843
Local Phone Number	383-7000
Title of 12(b) Security	No par value common stock
Trading Symbol	SON
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		98,324,893
Amendment Flag	false
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q2
Entity Central Index Key	0000091767
Current Fiscal Year End Date	--12-31

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) - USD ($) $ in Thousands	Jul. 04, 2021	Dec. 31, 2020	[1]
Current Assets
Cash and cash equivalents	$ 263,529	$ 564,848
Trade accounts receivable, net of allowances	727,967	658,808
Other receivables	100,060	103,636
Inventories, net:
Finished and in process	177,531	167,018
Materials and supplies	326,401	283,673
Prepaid expenses	51,354	52,564
Total Current Assets	1,646,842	1,830,547
Property, Plant and Equipment, Net	1,233,065	1,244,110
Goodwill	1,333,400	1,389,255
Other Intangible Assets, Net	295,193	321,934
Deferred Income Taxes	41,085	42,479
Right of Use Asset-Operating Leases	271,241	296,020
Other Assets	173,216	152,914
Total Assets	4,994,042	5,277,259
Current Liabilities
Payable to suppliers	641,003	536,939
Accrued expenses and other	351,221	511,489
Notes payable and current portion of long-term debt	404,029	455,784
Accrued taxes	8,654	7,415
Total Current Liabilities	1,404,907	1,511,627
Long-term Debt, Net of Current Portion	1,194,063	1,244,440
Noncurrent Operating Lease Liabilities	237,447	262,048
Pension and Other Postretirement Benefits	165,997	171,518
Deferred Income Taxes	79,143	86,018
Other Liabilities	90,052	91,080
Common stock, no par value
Authorized 300,000 shares 98,829 and 100,447 shares issued and outstanding at July 4, 2021 and December 31, 2020, respectively	7,175	7,175
Capital in excess of stated value	166,295	314,056
Accumulated other comprehensive loss	(344,456)	(756,842)
Retained earnings	1,982,430	2,335,216
Total Sonoco Shareholders’ Equity	1,811,444	1,899,605
Noncontrolling Interests	10,989	10,923
Total Equity	1,822,433	1,910,528
Total Liabilities and Equity	$ 4,994,042	$ 5,277,259
[1]	The year-end condensed consolidated balance sheet data was derived from audited financial statements, but does not include all disclosures required by accounting principles generally accepted in the United States of America.

CONDENSED CONSOLIDATED BALANC_2

CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) (Parenthetical) - shares	Jul. 04, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Common stock, shares authorized (in shares)	300,000,000	300,000,000
Common stock, shares issued (in shares)	98,829,000	100,447,000
Common stock, shares outstanding (in shares)	98,829,000	100,447,000

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF INCOME (unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 04, 2021	Jun. 28, 2020	Jul. 04, 2021	Jun. 28, 2020
Income Statement [Abstract]
Net sales	$ 1,382,754	$ 1,245,485	$ 2,736,058	$ 2,548,781
Cost of sales	1,120,101	997,502	2,195,504	2,034,208
Gross profit	262,653	247,983	540,554	514,573
Selling, general and administrative expenses	128,807	121,371	274,037	245,259
Restructuring/Asset impairment (income)/charges	(1,445)	22,885	5,401	35,484
Loss on divestiture of business	0	0	5,516	0
Operating profit	135,291	103,727	255,600	233,830
Non-operating pension costs	555,009	7,600	562,293	15,179
Interest expense	17,513	19,563	36,014	36,092
Interest income	2,719	878	3,489	1,362
Loss from the early extinguishment of debt	20,184	0	20,184	0
(Loss)/Income before income taxes	(454,696)	77,442	(359,402)	183,921
(Benefit from)/Provision for income taxes	(118,151)	23,230	(94,106)	49,986
(Loss)/Income before equity in earnings of affiliates	(336,545)	54,212	(265,296)	133,935
Equity in earnings of affiliates, net of tax	2,306	778	3,350	1,291
Net (loss)/income	(334,239)	54,990	(261,946)	135,226
Net loss attributable to noncontrolling interests	169	221	172	430
Net (loss)/income attributable to Sonoco	$ (334,070)	$ 55,211	$ (261,774)	$ 135,656
Weighted average common shares outstanding:
Basic (in shares)	100,082	100,971	100,571	100,915
Diluted (in shares)	100,082	101,109	100,571	101,109
Net (loss)/income attributable to Sonoco:
Basic (in usd per share)	$ (3.34)	$ 0.55	$ (2.60)	$ 1.34
Diluted (in usd per share)	$ (3.34)	$ 0.55	$ (2.60)	$ 1.34

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 04, 2021	Jun. 28, 2020	Jul. 04, 2021	Jun. 28, 2020
Statement of Comprehensive Income [Abstract]
Net (loss)/income	$ (334,239)	$ 54,990	$ (261,946)	$ 135,226
Other comprehensive income/(loss):
Foreign currency translation adjustments	12,596	32,864	(19,945)	(62,348)
Changes in defined benefit plans, net of tax	422,745	4,416	428,130	10,196
Changes in derivative financial instruments, net of tax	3,482	1,830	4,440	(2,725)
Other comprehensive income/(loss):	438,823	39,110	412,625	(54,877)
Comprehensive income:	104,584	94,100	150,679	80,349
Net loss attributable to noncontrolling interests	169	221	172	430
Other comprehensive (income)/loss attributable to noncontrolling interests	(759)	590	(239)	2,227
Comprehensive income attributable to Sonoco	$ 103,994	$ 94,911	$ 150,612	$ 83,006

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN TOTAL EQUITY (unaudited) - USD ($) shares in Thousands, $ in Thousands	Total		Common Shares	Capital in Excess of Stated Value	Accumulated Other Comprehensive Loss	Retained Earnings	Noncontrolling Interests	Impact of new accounting pronouncements	Impact of new accounting pronouncementsRetained Earnings
Beginning Balance at Dec. 31, 2019	$ 1,815,705		$ 7,175	$ 310,778	$ (816,803)	$ 2,301,532	$ 13,023	$ (209)	$ (209)
Beginning balance (shares) at Dec. 31, 2019			100,198
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss)/income	80,236					80,445	(209)
Other comprehensive income/(loss):
Translation gain (loss)	(95,212)				(93,575)		(1,637)
Defined benefit plan adjustment, net of tax	5,780				5,780
Derivative financial instruments, net of tax	(4,555)				(4,555)
Other comprehensive income (loss)	(93,987)				(92,350)		(1,637)
Dividends	(43,339)					(43,339)
Dividends paid to noncontrolling interests	0
Issuance of stock awards	376			376
Issuance of stock awards (shares)			196
Shares repurchased	(3,938)			(3,938)
Shares repurchased (shares)			(65)
Stock-based compensation	597			597
Ending Balance at Mar. 29, 2020	1,755,441		$ 7,175	307,813	(909,153)	2,338,429	11,177	0
Ending balance (shares) at Mar. 29, 2020			100,329
Beginning Balance at Dec. 31, 2019	1,815,705		$ 7,175	310,778	(816,803)	2,301,532	13,023	(209)	$ (209)
Beginning balance (shares) at Dec. 31, 2019			100,198
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss)/income	135,226
Other comprehensive income/(loss):
Translation gain (loss)	(62,348)
Defined benefit plan adjustment, net of tax	10,196
Derivative financial instruments, net of tax	(2,725)
Other comprehensive income (loss)					(52,650)
Ending Balance at Jun. 28, 2020	1,807,704		$ 7,175	309,427	(869,453)	2,350,189	10,366
Ending balance (shares) at Jun. 28, 2020			100,330
Beginning Balance at Mar. 29, 2020	1,755,441		$ 7,175	307,813	(909,153)	2,338,429	11,177	$ 0
Beginning balance (shares) at Mar. 29, 2020			100,329
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss)/income	54,990					55,211	(221)
Other comprehensive income/(loss):
Translation gain (loss)	32,864				33,454		(590)
Defined benefit plan adjustment, net of tax	4,416				4,416
Derivative financial instruments, net of tax	1,830				1,830
Other comprehensive income (loss)	39,110				39,700		(590)
Dividends	(43,451)					(43,451)
Dividends paid to noncontrolling interests	0
Issuance of stock awards	287			287
Issuance of stock awards (shares)			2
Shares repurchased	(12)			(12)
Shares repurchased (shares)			(1)
Stock-based compensation	1,339			1,339
Ending Balance at Jun. 28, 2020	1,807,704		$ 7,175	309,427	(869,453)	2,350,189	10,366
Ending balance (shares) at Jun. 28, 2020			100,330
Beginning Balance at Dec. 31, 2020	$ 1,910,528	[1]	$ 7,175	314,056	(756,842)	2,335,216	10,923
Beginning balance (shares) at Dec. 31, 2020	100,447		100,447
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss)/income	$ 72,293					72,297	(4)
Other comprehensive income/(loss):
Translation gain (loss)	(32,541)				(32,021)		(520)
Defined benefit plan adjustment, net of tax	5,385				5,385
Derivative financial instruments, net of tax	958				958
Other comprehensive income (loss)	(26,198)				(25,678)		(520)
Dividends	(45,510)					(45,510)
Issuance of stock awards	364			364
Issuance of stock awards (shares)			245
Shares repurchased	(5,051)			(5,051)
Shares repurchased (shares)			(85)
Stock-based compensation	6,372			6,372
Ending Balance at Apr. 04, 2021	1,912,798		$ 7,175	315,741	(782,520)	2,362,003	10,399
Ending balance (shares) at Apr. 04, 2021			100,607
Beginning Balance at Dec. 31, 2020	$ 1,910,528	[1]	$ 7,175	314,056	(756,842)	2,335,216	10,923
Beginning balance (shares) at Dec. 31, 2020	100,447		100,447
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss)/income	$ (261,946)
Other comprehensive income/(loss):
Translation gain (loss)	(19,945)
Defined benefit plan adjustment, net of tax	428,130
Derivative financial instruments, net of tax	4,440
Other comprehensive income (loss)					412,386
Ending Balance at Jul. 04, 2021	$ 1,822,433		$ 7,175	166,295	(344,456)	1,982,430	10,989
Ending balance (shares) at Jul. 04, 2021	98,829		98,829
Beginning Balance at Apr. 04, 2021	$ 1,912,798		$ 7,175	315,741	(782,520)	2,362,003	10,399
Beginning balance (shares) at Apr. 04, 2021			100,607
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss)/income	(334,239)					(334,070)	(169)
Other comprehensive income/(loss):
Translation gain (loss)	12,596				11,837		759
Defined benefit plan adjustment, net of tax	422,745				422,745
Derivative financial instruments, net of tax	3,482				3,482
Other comprehensive income (loss)	438,823				438,064		759
Dividends	(45,503)					(45,503)
Dividends paid to noncontrolling interests	0
Issuance of stock awards	246			246
Issuance of stock awards (shares)			41
Shares repurchased	(154,519)			(154,519)
Shares repurchased (shares)			(1,819)
Stock-based compensation	4,827			4,827
Ending Balance at Jul. 04, 2021	$ 1,822,433		$ 7,175	$ 166,295	$ (344,456)	$ 1,982,430	$ 10,989
Ending balance (shares) at Jul. 04, 2021	98,829		98,829
[1]	The year-end condensed consolidated balance sheet data was derived from audited financial statements, but does not include all disclosures required by accounting principles generally accepted in the United States of America.

CONDENSED CONSOLIDATED STATEM_4

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jul. 04, 2021	Jun. 28, 2020
Cash Flows from Operating Activities:
Net (loss)/income	$ (261,946)	$ 135,226
Adjustments to reconcile net (loss)/income to net cash provided by operating activities:
Asset impairment	4,852	8,759
Depreciation, depletion and amortization	121,792	123,447
Loss from the early extinguishment of debt	20,184	0
Share-based compensation expense	11,199	1,936
Equity in earnings of affiliates	(3,350)	(1,291)
Cash dividends from affiliated companies	3,930	3,276
Net gain on disposition of assets	(3,279)	(2,265)
Loss on divestiture of business	5,516	0
Pension and postretirement plan expense	576,297	29,135
Pension and postretirement plan contributions	(162,352)	(31,105)
Net (decrease)/increase in deferred taxes	(154,242)	19,653
Change in assets and liabilities, net of effects from acquisitions and foreign currency adjustments:
Trade accounts receivable	(104,925)	(13,516)
Inventories	(61,724)	(31,984)
Payable to suppliers	121,054	17,844
Prepaid expenses	(2,581)	(8,769)
Accrued expenses	(3,256)	9,261
Income taxes payable and other income tax items	7,965	8,533
Other assets and liabilities	(13,181)	13,851
Net cash provided by operating activities	101,953	281,991
Cash Flows from Investing Activities:
Purchases of property, plant and equipment	(99,959)	(76,417)
Cost of acquisitions, net of cash acquired	(2,353)	(3,787)
Proceeds from the sale of businesses, net	86,071	0
Proceeds from the sale of assets	7,433	4,845
Other net investing proceeds	4,304	524
Net cash used in investing activities	(4,504)	(74,835)
Cash Flows from Financing Activities:
Proceeds from issuance of debt	18,361	1,105,139
Principal repayment of debt	(259,225)	(269,970)
Net change in commercial paper	128,000	(250,000)
Net (decrease)/increase in outstanding checks	(15,620)	7,469
Proceeds from foreign exchange forward contracts and interest rate swaps	4,387	14,480
Payment of contingent consideration	0	(2,500)
Cash dividends	(90,401)	(86,337)
Excess cash costs of early extinguishment of debt	(20,111)	0
Payments for share repurchases	(159,571)	(3,950)
Net cash (used)/provided by financing activities	(394,180)	514,331
Effects of Exchange Rate Changes on Cash	(4,588)	(9,498)
Net (Decrease)/Increase in Cash and Cash Equivalents	(301,319)	711,989
Cash and cash equivalents at beginning of period	564,848	145,283
Cash and cash equivalents at end of period	$ 263,529	$ 857,272

Basis of Interim Presentation

Basis of Interim Presentation	6 Months Ended
	Jul. 04, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Interim Presentation	Basis of Interim Presentation In the opinion of the management of Sonoco Products Company (the “Company” or “Sonoco”), the accompanying unaudited condensed consolidated financial statements contain all adjustments (consisting of only normal recurring adjustments, unless otherwise stated) necessary to state fairly the consolidated financial position, results of operations and cash flows for the interim periods reported herein. Operating results for the six months ended July 4, 2021, are not necessarily indicative of the results that may be expected for the year ending December 31, 2021. These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and the notes thereto included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2020. With respect to the unaudited condensed consolidated financial information of the Company for the three- and six-month periods ended July 4, 2021 and June 28, 2020 included in this Form 10-Q, PricewaterhouseCoopers LLP reported that they have applied limited procedures in accordance with professional standards for a review of such information. However, their separate report dated August 3, 2021 appearing herein, states that they did not audit and they do not express an opinion on that unaudited financial information. Accordingly, the degree of reliance on their report on such information should be restricted in light of the limited nature of the review procedures applied. PricewaterhouseCoopers LLP is not subject to the liability provisions of Section 11 of the Securities Act of 1933 for their report on the unaudited financial information because that report is not a “report” or a “part” of a registration statement prepared or certified by PricewaterhouseCoopers LLP within the meaning of Sections 7 and 11 of the Act. As previously disclosed, the Company changed its operating and reporting structure in January 2021 and, as a result, realigned certain of its reportable segments effective January 1, 2021. The revised structure consists of two reportable segments, Consumer Packaging and Industrial Paper Packaging, with all remaining businesses reported as "All Other." Additional information regarding segment realignment is provided in Note 15 to these Condensed Consolidated Financial Statements. All segment results for prior periods have been recast to conform to the new presentation.

New Accounting Pronouncements

New Accounting Pronouncements	6 Months Ended
	Jul. 04, 2021
Accounting Changes and Error Corrections [Abstract]
New Accounting Pronouncements	New Accounting Pronouncements During the six-month period ended July 4, 2021, there have been no newly issued nor newly applicable accounting pronouncements that have had, or are expected to have, a material impact on the Company’s financial statements. Further, at July 4, 2021, there are no other pronouncements pending adoption that are expected to have a material impact on the Company’s consolidated financial statements.

Acquisitions and Divestitures

Acquisitions and Divestitures	6 Months Ended
	Jul. 04, 2021
Business Combination and Asset Acquisition [Abstract]
Acquisitions and Divestitures	Acquisitions and Divestitures Acquisitions On March 8, 2021, the Company completed the acquisition of TuboTec, a small tube and core operation in Brazil, for total cash consideration of $841. TuboTec's financial results from the date acquired are included in the Company's Industrial Paper Packaging segment. During the six months ended July 4, 2021, the Company reached a final working capital settlement related to the August 3, 2020 acquisition of Can Packaging, a designer and manufacturer of sustainable paper packaging and related manufacturing equipment, based in Habsheim, France. Under the settlement, the Company made an additional cash payment of $1,512 and a corresponding increase in goodwill. Goodwill for Can Packaging, none of which is expected to be deductible for income tax purposes, consists of increased access to certain markets. Can Packaging's financial results from the date acquired are included in the Company's Consumer Packaging segment. The valuations of the assets acquired and liabilities assumed in the 2020 acquisitions of Can Packaging and a small tube and core operation in Jacksonville, Florida, were finalized in the first quarter of 2021. No additional measurement period adjustments were subsequently recorded. The Company has accounted for its acquisitions as business combinations under the acquisition method of accounting, in accordance with the business combinations subtopic of the Accounting Standards Codification and has included the results of operations of the acquired businesses in the Company's Condensed Consolidated Statements of Income from their respective dates of acquisition. Divestitures As previously disclosed, the Company completed the sale of its display and packaging business in the United States, part of the "All Other" group of businesses, to Hood Container Corporation on April 4, 2021 for $80,000 in cash. This business provided design, manufacturing and fulfillment of point-of-purchase displays, as well as contract packaging services, for consumer product customers and had approximately 450 employees. Its operations included eight manufacturing and fulfillment facilities and four sales and design centers. Assets and liabilities disposed of in the sale included the following: U.S. Display and Packaging Trade accounts receivable $ 26,342 Inventories 8,434 Property, plant and equipment, net 9,551 Right of use asset - operating leases 11,627 Goodwill 53,039 Trade accounts payable (10,735) Accrued expenses (1,411) Operating lease liabilities (12,343) Other net tangible assets 716 $ 85,220 The selling price was adjusted at closing for certain transaction expenses and for anticipated differences between targeted levels of working capital and the projected levels at the time of closing. Net cash proceeds of $79,704 were received on April 5, 2021 and the Company recognized a loss on the divestiture of this business of $5,516, before tax. The Company anticipates the final working capital settlement to be completed during the third quarter of 2021; this settlement, though not expected to be material, is expected to reduce the previously recognized loss on the divestiture of this business. As previously disclosed, the Company completed the divestiture of its European contract packaging business, Sonoco Poland Packaging Services Sp. z.o.o., on November 30, 2020. The selling price of $120,000 was adjusted at closing for certain indebtedness assumed by the buyer and for anticipated differences between targeted levels of working capital and the projected levels at the time of closing. The Company received net cash proceeds at closing of $105,913, with the buyer funding an escrow account with an additional $4,600. In the second quarter of 2021 the company received $6,366 in additional proceeds from the sale, which included the release of $4,000 from escrow plus a post-closing adjustment of $2,366 for the working capital settlement. The remaining $600 in escrow is expected to be released in the second quarter of 2022, pending any indemnity claims. The receipt of the additional cash proceeds is reflected in "Proceeds from the sale of businesses, net" in the Condensed Consolidated Statement of Cash Flows. The decision to sell the display and packaging businesses was part of the Company's efforts to simplify its operating structure to focus on growing its core Consumer and Industrial packaging businesses around the world. These sales are not expected to notably affect consolidated operating margin percentages, nor do they represent a strategic shift for the Company that will have a major effect on the entity’s operations and financial results. Consequently, the sales did not meet the criteria for reporting as discontinued operations. The net proceeds from the sales were used for general corporate purposes. The Company continually assesses its operational footprint as well as its overall portfolio of businesses and may consider the divestiture of plants and/or business units it considers to be suboptimal or nonstrategic. Acquisition and Divestiture-Related Transaction Costs

Shareholders' Equity

Shareholders' Equity	6 Months Ended
	Jul. 04, 2021
Equity [Abstract]
Shareholders' Equity	Shareholders' Equity (Loss)/Earnings per Share The following table sets forth the computation of basic and diluted (loss)/earnings per share: Three Months Ended Six Months Ended July 4, 2021 June 28, 2020 July 4, 2021 June 28, 2020 Numerator: Net (loss)/income attributable to Sonoco $ (334,070) $ 55,211 $ (261,774) $ 135,656 Denominator: Weighted average common shares outstanding: Basic 100,082 100,971 100,571 100,915 Dilutive effect of stock-based compensation — 138 — 194 Diluted 100,082 101,109 100,571 101,109 Net (loss)/income attributable to Sonoco per common share: Basic $ (3.34) $ 0.55 $ (2.60) $ 1.34 Diluted $ (3.34) $ 0.55 $ (2.60) $ 1.34 Cash dividends $ 0.45 $ 0.43 $ 0.90 $ 0.86 No adjustments were made to "Net (loss)/income attributable to Sonoco" in the computations of net (loss)/income attributable to Sonoco per common share. Anti-dilutive Securities Potentially dilutive securities are calculated in accordance with the treasury stock method, which assumes the proceeds from the exercise of all dilutive stock appreciation rights (SARs) are used to repurchase the Company’s common stock. Certain SARs are not dilutive because either the exercise price is greater than the average market price of the stock during the reporting period or assumed repurchases from proceeds from the exercise of the SARs were antidilutive. These SARs may become dilutive in the future if the market price of the Company's common stock appreciates. The average numbers of SARs that were anti-dilutive and, therefore, not included in the computation of diluted earnings per share during the three- and six-month periods ended July 4, 2021 and June 28, 2020 were as follows: Three Months Ended Six Months Ended July 4, 2021 June 28, 2020 July 4, 2021 June 28, 2020 Anti-dilutive stock appreciation rights — 1,191 214 890 Diluted earnings per share is computed by dividing net income by the weighted average shares outstanding, assuming all dilutive potential common shares were issued, unless doing so is anti-dilutive. Such securities have an anti-dilutive impact in those periods in which a loss is reported. Diluted net loss per share of common stock for the three- and six-month periods ended July 4, 2021 is the same as basic net loss per share because otherwise dilutive securities are excluded from the computation of diluted net loss per share. The following table sets forth the potentially dilutive securities excluded from the computation of diluted net loss per share during the three- and six-month periods ended July 4, 2021: Three Months Ended Six Months Ended July 4, 2021 July 4, 2021 Dilutive securities excluded due to reported loss 486 469 Stock Repurchases On April 20, 2021, the Company's Board of Directors (the "Board") authorized the repurchase of the Company's common stock in an aggregate amount of up to $350,000. Following the transactions described below, a total of $196,385 remains available to be used for share repurchases under this authorization as of July 4, 2021. On May 10, 2021, the Company entered into an accelerated share repurchase agreement ("ASR Agreement") with a financial institution to repurchase outstanding shares of the Company's common stock. In exchange for an upfront payment of $150,000, which was funded with available cash on hand, the financial institution delivered 1,751 initial shares to the Company, representing 80% of the expected number of shares to be repurchased during the repurchase period based upon an estimated average repurchase price of $68.50 per share. The initial shares received were retired by the Company. The final number of shares to be repurchased and retired were based on the Company's volume-weighted average share price during the repurchase period, less a discount and subject to certain adjustments (the "Settlement Price"). The financial institution could elect to settle all or any part of the transaction at any time between July 9, 2021 and September 11, 2021. At final settlement, the financial institution could be required to deliver additional shares to the Company or, under certain conditions, the Company could be required to make a cash payment or deliver shares of the Company's common stock, at its election, to the financial institution. As of July 4, 2021, the unsettled portion of the ASR Agreement represented a forward contract indexed to the Company's own stock which was recognized within shareholders’ equity as "Capital in excess of stated value." Pursuant to the ASR Agreement, the financial institution elected to accelerate the settlement of the transaction in two tranches. On July 21, 2021, the financial institution transferred 168 additional shares to the Company based upon an effective Settlement Price of $66.52 and a notional value of $50,000, or one third of the total $150,000 prepayment. On July 26, 2021, the financial institution transferred 337 additional shares to the Company upon full settlement of the remaining $100,000 notional value of the transaction at an average repurchase price of $66.45. On May 6, 2021, the Company repurchased approximately 54 shares for $3,615 from a private stockholder based upon the average closing stock price on that day. The cost of these share repurchases, as well as those related to the accelerated share agreement mentioned above, was allocated to "Capital in excess of stated value" on the Company's Condensed Consolidated Balance Sheet for the period ended July 4, 2021. The Company frequently repurchases shares of its common stock to satisfy employee tax withholding obligations in association with certain share-based compensation awards. These repurchases, which are not part of a publicly announced plan or program, totaled 98 shares during the six months ended July 4, 2021, at a cost of $5,956, and 66 shares during the six months ended June 28, 2020, at a cost of $3,950. Dividend Declarations On April 21, 2021, the Board of Directors declared a regular quarterly dividend of $0.45 per share. This dividend was paid on June 10, 2021 to all shareholders of record as of May 10, 2021. On July 21, 2021, the Board of Directors declared a regular quarterly dividend of $0.45 per share. This dividend is payable on September 10, 2021 to all shareholders of record as of August 10, 2021.

Restructuring and Asset Impairm

Restructuring and Asset Impairment	6 Months Ended
	Jul. 04, 2021
Restructuring and Related Activities [Abstract]
Restructuring and Asset Impairment	Restructuring and Asset Impairment Due to its geographic footprint and the cost-competitive nature of its businesses, the Company is continually seeking the most cost-effective means and structure to serve its customers and to respond to fundamental changes in its markets. As such, restructuring costs have been, and are expected to be, a recurring component of the Company's operating costs. The amount of these costs can vary significantly from quarter to quarter and from year to year depending upon the scope and location of the restructuring activities. Following are the total restructuring and asset impairment charges, net of adjustments, recognized during the periods presented: Three Months Ended Six Months Ended July 4, 2021 June 28, 2020 July 4, 2021 June 28, 2020 Restructuring and restructuring-related asset impairment (income)/charges $ (1,853) $ 22,885 $ 844 $ 35,484 Other asset impairments 408 — 4,557 — Restructuring/Asset Impairment (Income)/Charges $ (1,445) $ 22,885 $ 5,401 $ 35,484 The table below sets forth restructuring and restructuring-related asset impairment charges by type incurred: Three Months Ended Six Months Ended July 4, 2021 June 28, 2020 July 4, 2021 June 28, 2020 Severance and Termination Benefits $ 2,438 $ 15,159 $ 3,866 $ 25,259 Asset Impairment / Disposal of Assets (5,621) 6,073 (6,485) 8,759 Other Costs 1,330 1,653 3,463 1,466 Restructuring and restructuring-related asset impairment (income)/charges $ (1,853) $ 22,885 $ 844 $ 35,484 The table below sets forth restructuring and restructuring-related asset impairment charges by reportable segment: Three Months Ended Six Months Ended July 4, 2021 June 28, 2020 July 4, 2021 June 28, 2020 Consumer Packaging $ 173 $ 2,007 $ 1,258 $ 4,209 Industrial Paper Packaging (4,372) 17,689 (2,939) 23,199 All Other 2,355 2,606 2,520 5,965 Corporate (9) 583 5 2,111 Restructuring and restructuring-related asset impairment (income)/charges $ (1,853) $ 22,885 $ 844 $ 35,484 Restructuring and asset impairment charges are included in “Restructuring/Asset impairment (income)/charges” in the Company's Condensed Consolidated Statements of Income. The following table sets forth the activity in the restructuring accrual included in “Accrued expenses and other” on the Company’s Condensed Consolidated Balance Sheets: Severance Asset Other Total Accrual Activity Liability at December 31, 2020 $ 15,955 $ — $ 511 $ 16,466 2021 charges 3,866 (6,485) 3,463 844 Cash receipts/(payments) (11,160) 10,279 (3,720) (4,601) Asset write downs/disposals — (3,794) 353 (3,441) Foreign currency translation (265) — 1 (264) Liability at July 4, 2021 $ 8,396 $ — $ 608 $ 9,004 "Severance and Termination Benefits" during the first six months of 2021 includes the cost of severance for approximately 450 employees whose positions were eliminated in conjunction with the Company's ongoing organizational effectiveness efforts. "Asset Impairment/Disposal of Assets" during the first six months of 2021 consists primarily of gains from the sale of real estate in the Industrial Paper Packaging segment, and gains from the sale of other assets impaired in the prior year as a result of consolidations in the Company's plastics foods operations, partially offset by restructuring-related asset impairment charges in the Company's temperature-assured packaging business. “Other Costs” during the first six months of 2021 consists primarily of costs related to plant closures including equipment removal, utilities, plant security, property taxes and insurance, net of incentive forfeitures. The Company expects to pay the majority of the remaining restructuring reserves by the end of 2021 using cash generated from operations. The Company also expects to recognize future additional charges totaling approximately $2,000 in connection with previously announced restructuring actions and believes that the majority of these charges will be incurred and paid by the end of 2021. The Company continually evaluates its cost structure, including its manufacturing capacity, and additional restructuring actions are likely to be undertaken. Other Asset Impairments The Company reco gnized other asset impairment charges totaling $408 and $4,557 in the thre e and six months ended July 4, 2021, respectively. The year-to-date charges consist of fixed asset impairments totaling $2,158 in the Company's plastics foods operations, part of the Consumer Packaging segment, and $2,399 in the temperature-assured packaging business, part of the All Other group of businesses. The assets were impaired as the value of their projected undiscounted cash flows was determined to no longer be sufficient to recover their carrying value. These asset impairment charges are included in “Restructuring/Asset impairment (income)/charges” in the Company’s Condensed Consolidated Statements of Income.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Loss	6 Months Ended
	Jul. 04, 2021
Equity [Abstract]
Accumulated Other Comprehensive Loss	Accumulated Other Comprehensive Loss The following table summarizes the components of accumulated other comprehensive loss and the changes in the balances of each component of accumulated other comprehensive loss, net of tax as applicable, for the six months ended July 4, 2021 and June 28, 2020: Foreign Defined Cash Accumulated Balance at December 31, 2020 $ (194,024) $ (562,747) $ (71) $ (756,842) Other comprehensive (loss)/income before reclassifications (20,184) 10,888 5,219 (4,077) Amounts reclassified from accumulated other comprehensive loss to net loss — 417,242 (733) 416,509 Amounts reclassified from accumulated other comprehensive loss to fixed assets — — (46) (46) Other comprehensive (loss)/income (20,184) 428,130 4,440 412,386 Balance at July 4, 2021 $ (214,208) $ (134,617) $ 4,369 $ (344,456) Balance at December 31, 2019 $ (241,994) $ (574,413) $ (396) $ (816,803) Other comprehensive (loss)/income before reclassifications (60,121) (862) (4,402) (65,385) Amounts reclassified from accumulated other comprehensive loss to net income — 11,058 1,677 12,735 Other comprehensive (loss)/income (60,121) 10,196 (2,725) (52,650) Balance at June 28, 2020 $ (302,115) $ (564,217) $ (3,121) $ (869,453) The following table summarizes the effects on net income of significant amounts reclassified from each component of accumulated other comprehensive loss for the three- and six-month periods ended July 4, 2021 and June 28, 2020: Amount Reclassified from Accumulated Three Months Ended Six Months Ended Details about Accumulated Other July 4, June 28, July 4, June 28, Affected Line Item in Gains/(losses) on cash flow hedges Foreign exchange contracts $ 1,489 $ (3,384) $ 1,829 $ (4,522) Net sales Foreign exchange contracts (1,190) 2,050 (1,418) 2,877 Cost of sales Commodity contracts 646 525 575 (554) Cost of sales $ 945 $ (809) $ 986 (2,199) (Loss)/Income before income taxes (241) 197 (253) 522 Benefit from /(Provision for) income taxes $ 704 $ (612) $ 733 (1,677) Net (loss)/income Defined benefit pension items Effect of curtailment loss (a) — (31) — (31) Non-operating pension costs Effect of settlement loss (a) (547,631) (38) (547,631) (661) Non-operating pension costs Amortization of defined benefit pension items (a) (6,432) (7,221) (13,333) (14,082) Non-operating pension costs $ (554,063) $ (7,290) $ (560,964) (14,774) (Loss)/Income before income taxes 142,090 1,815 143,722 3,716 Benefit from /(Provision for) income taxes $ (411,973) $ (5,475) $ (417,242) (11,058) Net (loss)/income Total reclassifications for the period $ (411,269) $ (6,087) $ (416,509) $ (12,735) Net (loss)/income (a) See Note 11 for additional details. The following table summarizes the before and after tax amounts for the various components of other comprehensive income/(loss) for the three-month periods ended July 4, 2021 and June 28, 2020: Three months ended July 4, 2021 Three months ended June 28, 2020 Before Tax Tax After Tax Before Tax Tax After Tax Foreign currency items: Net other comprehensive loss from foreign currency items $ 11,837 $ — $ 11,837 $ 33,454 $ — $ 33,454 Defined benefit pension items: Other comprehensive income/(loss) before 14,213 (3,441) 10,772 (1,410) 351 (1,059) Amounts reclassified from accumulated other comprehensive loss to net (loss) income (a) 554,063 (142,090) 411,973 7,290 (1,815) 5,475 Net other comprehensive income/(loss) from 568,276 (145,531) 422,745 5,880 (1,464) 4,416 Gains and losses on cash flow hedges: Other comprehensive income/(loss) before 5,674 (1,452) 4,222 1,612 (394) 1,218 Amounts reclassified from accumulated other (945) 241 (704) 809 (197) 612 Amounts reclassified from accumulated other (49) 13 (36) — — — Net other comprehensive income/(loss) from 4,680 (1,198) 3,482 2,421 (591) 1,830 Other comprehensive loss $ 584,793 $ (146,729) $ 438,064 $ 41,755 $ (2,055) $ 39,700 (a) See Note 11 for additional details. The following table summarizes the before and after tax amounts for the various components of other comprehensive income/(loss) for the six-month periods ended July 4, 2021 and June 28, 2020: Six months ended July 4, 2021 Six months ended June 28, 2020 Before Tax Tax After Tax Before Tax Tax After Tax Foreign currency items: Net other comprehensive (loss)/income from foreign currency items (a) $ (20,184) $ — $ (20,184) $ (52,540) (7,581) $ (60,121) Defined benefit pension items: Other comprehensive (loss)/income before 14,364 (3,476) 10,888 (1,146) 284 (862) Amounts reclassified from accumulated other comprehensive income/(loss) to net income (b) 560,964 (143,722) 417,242 14,774 (3,716) 11,058 Net other comprehensive income/(loss) from 575,328 (147,198) 428,130 13,628 (3,432) 10,196 Gains and losses on cash flow hedges: Other comprehensive (loss)/income before 7,012 (1,793) 5,219 (5,721) 1,319 (4,402) Amounts reclassified from accumulated other (986) 253 (733) 2,199 (522) 1,677 Amounts reclassified from accumulated other (62) 16 (46) — — — Net other comprehensive (loss)/income from 5,964 (1,524) 4,440 (3,522) 797 (2,725) Other comprehensive income/(loss): $ 561,108 $ (148,722) $ 412,386 $ (42,434) $ (10,216) $ (52,650) (a) Other comprehensive loss from foreign currency items for the six-month period ended June 28, 2020 includes the settlement gain and corresponding tax provision related to the termination of a net investment hedge. See Note 9 for more information. (b) See Note 11 for additional details.

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	6 Months Ended
	Jul. 04, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets Goodwill A summary of the changes in goodwill by segment for the six months ended July 4, 2021 is as follows: Consumer Industrial Paper Packaging All Other Total Goodwill at December 31, 2020 $ 592,310 $ 317,958 $ 478,987 $ 1,389,255 2021 Acquisitions — 917 — 917 Dispositions — — (53,039) (53,039) Foreign currency translation (2,065) (2,958) (222) (5,245) Measurement period adjustments 1,512 — — 1,512 Goodwill at July 4, 2021 $ 591,757 $ 315,917 $ 425,726 $ 1,333,400 Goodwill from 2021 acquisitions relates to the first quarter acquisition of TuboTec while measurement period adjustments relate to final working capital settlements made in the first quarter of 2021 for the prior year acquisition of Can Packaging, which resulted in a $1,512 increase in goodwill. See Note 3 for additional information. The Company assesses goodwill for impairment annually during the third quarter, or from time to time when warranted by the facts and circumstances surrounding individual reporting units or the Company as a whole. The Company completed its most recent annual goodwill impairment testing during the third quarter of 2020, and analyzed certain qualitative and quantitative factors in determining whether a goodwill impairment existed. The Company's assessments reflected a number of significant management assumptions and estimates including the Company's forecast of sales, profit margins, and discount rates. Changes in these assumptions could materially impact the Company's conclusions. Based on its assessments, the Company concluded that there was no impairment of goodwill for any of its reporting units. Additionally, in conjunction with the January 1, 2021 realignment of its reportable segments, as described in Note 15, several of the Company’s reporting units were realigned and the resulting reporting units were tested for impairment both before and after the realignment following the same methodology used by the Company in its annual goodwill impairment testing. Although no reporting units failed the annual impairment test or the testing performed as a result of the segment realignment noted above, in management’s opinion, the goodwill of the Conitex, Retail Packaging, and Plastics – Healthcare reporting units are at risk of impairment in the near term if these reporting units' operations do not perform in line with management's expectations, or if there is a negative change in the long-term outlook for these businesses or in other factors such as the discount rate. The results of these three reporting units have been negatively affected by the economic impact of the COVID-19 pandemic due to end-market weakness, as well as recent raw material price increases. Management currently expects customer demand will improve over the next few quarters and approach pre-pandemic levels in late 2021 or 2022 and that announced and/or planned selling price increases will mitigate higher raw material costs. However, should it become apparent that the post-COVID-19 recovery is likely to be weaker, or significantly delayed, compared to management’s current expectations, or significant negative price/cost relationships will persist over the long-term, goodwill impairment charges may be possible in the future. Total goodwill associated with the Conitex, Retail Packaging, and Plastics – Healthcare reporting units was $33,189, $70,139 and $65,733, respectively, at July 4, 2021. Based on their most recent impairment tests, the estimated fair values of the Conitex, Retail Packaging, and Plastics – Healthcare reporting units exceeded their individual carrying values by 6.9%, 17.3%, and 11.7%, respectively. In its annual goodwill impairment analysis as of September 27, 2020, projected future cash flows for Conitex were discounted at 10.8%. Based on the discounted cash flow model and holding other valuation assumptions constant, Conitex's projected operating profits across all future periods would have to be reduced approximately 6.2%, or the discount rate increased to 12.2%, in order for the estimated fair value to fall below the reporting unit’s carrying value. In the goodwill impairment analysis performed in conjunction with the 2021 reportable segment realignment, projected future cash flows for Retail Packaging were discounted at 7.7%. Based on the discounted cash flow model and holding other valuation assumptions constant, projected operating profits across all future periods would have to be reduced approximately 8.0%, or the discount rate increased to 10.6%, in order for the estimated fair value to fall below the reporting unit’s carrying value. In the goodwill impairment analysis performed in conjunction with the 2021 reportable segment realignment, projected future cash flows for Plastics - Healthcare were discounted at 7.9%. Based on the discounted cash flow model and holding other valuation assumptions constant, projected operating profits across all future periods would have to be reduced approximately 5.6%, or the discount rate increased to 9.1%, in order for the estimated fair value to fall below the reporting unit’s carrying value. Other Intangible Assets A summary of other intangible assets as of July 4, 2021 and December 31, 2020 is as follows: July 4, December 31, Other Intangible Assets, gross: Patents $ 29,320 $ 29,325 Customer lists 588,410 622,430 Trade names 32,118 32,088 Proprietary technology 22,868 22,813 Other 2,818 2,831 Total Other Intangible Assets, gross $ 675,534 $ 709,487 Accumulated Amortization: Patents $ (15,401) $ (14,511) Customer lists (329,056) (339,159) Trade names (13,221) (12,156) Proprietary technology (20,704) (19,833) Other (1,959) (1,894) Total Accumulated Amortization $ (380,341) $ (387,553) Other Intangible Assets, net $ 295,193 $ 321,934 Other Intangible Assets are amortized on a straight-line basis over their respective useful lives, which generally range from three Aggregate amortization expense was $12,111 and $13,359 for the three months ended July 4, 2021 and June 28, 2020, respectively, and $24,860 and $26,631 for the six-months ended July 4, 2021 and June 28, 2020, respectively. Amortization expense on other intangible assets is expected to total approximately $45,700 in 2021, $41,100 in 2022, $34,100 in 2023, $24,700 in 2024 and $22,100 in 2025.

Debt

Debt	6 Months Ended
	Jul. 04, 2021
Debt Disclosure [Abstract]
Debt	Debt Details of the Company's debt at July 4, 2021 and December 31, 2020 are as follows: July 4, December 31, Commercial paper $ 128,000 $ — 1.0% Euro loan due May 2021 — 183,662 9.2% debentures due August 2021 4,321 4,320 4.375% debentures due November 2021 249,934 249,741 3.125% debentures due May 2030 595,026 594,687 5.75% debentures due November 2040 536,165 599,279 Other foreign denominated debt 17,816 15,522 Finance lease obligations 51,627 37,943 Other notes 15,203 15,070 Total debt $ 1,598,092 $ 1,700,224 Less current portion and short-term notes 404,029 455,784 Long-term debt $ 1,194,063 $ 1,244,440 On April 28, 2021, the Company commenced a cash tender offer to purchase up to $300,000 of the $600,000 outstanding principal amount of its 5.75% notes due November 2040. Upon expiration of the tender on May 25, 2021, the Company repurchased 10.53% of its outstanding 5.75% notes for a total cash cost of $81,961, as shown below: Principal Amount Tendered Premium and Other Amounts Paid Total 5.75% debentures due November 2040 $ 63,206 $ 18,755 $ 81,961 On April 28, 2021, the Company entered into a reverse treasury lock agreement intended to fix the cash cost to fund approximately $100,000 of the maximum $300,000 principal amount subject to being tendered. The settlement of the reverse treasury lock on May 13, 2021 resulted in a loss of $1,356. In addition, the Company wrote off a proportional share of unamortized bond issuance costs and unamortized original issue discounts associated with the 5.75% notes. These non-cash write-offs net to $73, which combined with the hedge loss and premium and other amounts paid, resulted in a pretax loss from the early extinguishment of debt totaling $20,184. The Company's 1%, 150,000 euro-denominated debt matured on May 25, 2021, and a U.S. dollar equivalent cash payment of $177,780 was made to settle the debt. On April 7, 2021, the Company entered into two forward contracts to buy a total of 150,000 euros, to manage foreign currency risk related to the Company's funding of the debt repayment upon maturity. The Company recognized a gain of $4,387 upon the May 21, 2021 maturity of these forward contracts. The gain is included in "Selling, general and administrative expenses" on the Company's Condensed Consolidated Statements of Income for the three and six months ended July 4, 2021 and the proceeds from the settlement of the contracts and the debt maturity payment are reflected in "Net cash (used)/provided by financing activities" in the Company's Condensed Consolidated Statement of Cash Flows for the six months ended July 4, 2021. On June 30, 2021, the Company entered into a new five-year $750,000, unsecured revolving credit facility which replaced an existing credit facility entered into on July 20, 2017, and reflects substantially the same terms and conditions. Consistent with prior facilities, the new revolving credit facility supports the Company's $500,000 commercial paper program. Based on the pricing grid, the Credit Agreement and Sonoco's current credit ratings, a London Interbank Offering Rate (LIBOR) borrowing has an all-in drawn margin of 125.0 basis points. As of July 4, 2021, the Company has scheduled debt maturities through the next twelve months of $404,029. At July 4, 2021, the Company has $263,529 in cash and cash equivalents on hand and $750,000 in committed capacity under its revolving credit facility, of which $622,000 was available for draw down net of commercial paper balances of $128,000. The Company believes that these amounts, combined with expected net cash flows from operating activities, provide ample liquidity to cover these debt maturities and other cash flow needs of the Company over the course of the next year. Certain of the Company’s debt agreements impose restrictions with respect to the maintenance of financial ratios and the disposition of assets. The most restrictive covenants currently require the Company to maintain a minimum level of interest coverage and a minimum level of net worth, as defined in the agreements. As of July 4, 2021, the Company’s interest coverage and net worth were substantially above the minimum levels required under these covenants.

Financial Instruments and Deriv

Financial Instruments and Derivatives	6 Months Ended
	Jul. 04, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Financial Instruments and Derivatives	Financial Instruments and Derivatives The following table sets forth the carrying amounts and fair values of the Company’s significant financial instruments for which the carrying amount differs from the fair value. July 4, 2021 December 31, 2020 Carrying Fair Carrying Fair Long-term debt, net of current portion $ 1,194,063 $ 1,508,920 $ 1,244,440 $ 1,538,132 The carrying value of cash and cash equivalents and short-term debt approximates fair value. The fair value of long-term debt is determined based on recent trade information in the financial markets of the Company’s public debt or is determined by discounting future cash flows using interest rates available to the Company for issues with similar terms and maturities which is considered a Level 2 fair value measurement. Cash Flow Hedges At July 4, 2021 and December 31, 2020, the Company had derivative financial instruments outstanding to hedge anticipated transactions and certain asset and liability related cash flows. These contracts, which have maturities ranging to December 2022, qualify as cash flow hedges under U.S. GAAP. For derivative instruments that are designated and qualify as a cash flow hedge, the gain or loss on the derivative instrument is reported as a component of other comprehensive income and reclassified into earnings in the same period or periods during which the hedged transaction affects earnings and is presented in the same income statement line item as the earnings effect of the hedged item. Commodity Cash Flow Hedges The Company has entered into certain derivative contracts to manage the cost of anticipated purchases of natural gas and aluminum. At July 4, 2021, natural gas swaps covering approximately 5.5 million MMBTUs were outstanding. These contracts represent approximately 62% and 41% of anticipated usage in North America for 2021 and 2022, respectively. Additionally, the Company had swap contracts covering 1,810 metric tons of aluminum, representing approximately 53% of anticipated usage for the remainder of 2021. The fair values of the Company’s commodity cash flow hedges netted to a gain position of $5,381 at July 4, 2021 and a loss position of $(647) at December 31, 2020. The amount of the gain included in Accumulated Other Comprehensive Income at July 4, 2021 expected to be reclassified to the income statement during the next twelve months is $3,478. Foreign Currency Cash Flow Hedges The Company has entered into forward contracts to hedge certain anticipated foreign currency denominated sales, purchases, and capital spending expected to occur in 2021 and 2022. The net positions of these contracts at July 4, 2021 were as follows (in thousands): Currency Action Quantity Colombian peso purchase 9,976,203 Mexican peso purchase 194,460 Polish zloty purchase 41,954 Czech koruna purchase 27,864 Euro purchase 11,433 Canadian dollar purchase 6,968 British pound purchase 3,295 Turkish lira purchase 1,245 The fair value of foreign currency cash flow hedges related to forecasted sales and purchases netted to a gain position of $763 and $555 at July 4, 2021 and December 31, 2020, respectively. Gains of $763 are expected to be reclassified from accumulated other comprehensive income to the income statement during the next twelve months. In addition, the Company has entered into forward contracts to hedge certain foreign currency cash flow transactions related to construction in progress. As of July 4, 2021 and December 31, 2020, the net position of these contracts was $(274) and $47 respectively. During the six months ended July 4, 2021, gains from these hedges totaling $62 were reclassified from accumulated other comprehensive income and included in the carrying value of the capitalized expenditures. Losses of $(271) are expected to be reclassified from accumulated other comprehensive income and included in the carrying value of the related fixed assets acquired during the next twelve months. Net Investment Hedge In January 2020, the Company entered into a cross-currency swap agreement with a notional amount of $250,000 to effectively convert a portion of the Company's fixed-rate, U.S. dollar denominated debt, including the semi-annual interest payments, to fixed-rate euro-denominated debt. The risk management objective was to manage foreign currency risk relating to net investments in certain European subsidiaries denominated in foreign currencies. As a result of significant strengthening of the U.S. dollar and a reduction in the differential between U.S. and European interest rates, the fair market value of the swap position appreciated significantly during the first quarter of 2020. In March 2020, the Company terminated the swap agreement and received a net cash settlement of $14,480. The Company recorded this foreign currency translation gain in "Accumulated other comprehensive loss," net of a tax provision of $7,581. Other Derivatives The Company routinely enters into forward contracts or swaps to economically hedge the currency exposure of intercompany debt and foreign currency denominated receivables and payables. The Company does not apply hedge accounting treatment under ASC 815 for these instruments. As such, changes in fair value are recorded directly to income and expense in the periods that they occur. The net currency positions of these contracts at July 4, 2021, were as follows (in thousands): Currency Action Quantity Indonesian rupiah purchase 25,660,982 Colombian peso purchase 24,649,532 Mexican peso purchase 352,286 Canadian dollar purchase 3,448 The fair value of the Company’s other derivatives position was a gain of $172 an d $599 at July 4, 2021 and December 31, 2020, respectively. The following table sets forth the location and fair values of the Company’s derivative instruments at July 4, 2021 and December 31, 2020: Description Balance Sheet Location July 4, 2021 December 31, 2020 Derivatives designated as hedging instruments: Commodity Contracts Prepaid expenses $ 3,478 $ 867 Commodity Contracts Other assets $ 1,903 $ — Commodity Contracts Accrued expenses and other $ — $ (1,512) Commodity Contracts Other liabilities $ — $ (2) Foreign Exchange Contracts Prepaid expenses $ 1,020 $ 997 Foreign Exchange Contracts Accrued expenses and other $ (528) $ (395) Foreign Exchange Contracts Other liabilities $ (3) $ — Derivatives not designated as hedging instruments: Commodity Contracts Prepaid expenses $ — $ 484 Foreign Exchange Contracts Prepaid expenses $ 241 $ 140 Foreign Exchange Contracts Accrued expenses and other $ (69) $ (25) While certain of the Company’s derivative contract arrangements with its counterparties provide for the ability to settle contracts on a net basis, the Company reports its derivative positions on a gross basis. There are no collateral arrangements or requirements in these agreements. Pursuant to the May 25, 2021 maturity of the Company's 1%, 150,000 euro-denominated debt discussed in Note 8, the Company entered into two forward contracts on April 7, 2021, to buy a total of 150,000 euros, with the risk management objective of managing foreign currency risk related to the Company's funding of the debt repayment upon maturity. The Company recognized a gain of $4,387 upon the May 21, 2021, maturity of these forward contracts. The gain is included in "Selling, general and administrative expenses" on the Company's Condensed Consolidated Statements of Income for the three and six months ended July 4, 2021. Pursuant to the bond tender discussed in Note 8, the Company entered into a reverse treasury lock agreement on April 28, 2021 with the intent to fix the cash cost to fund approximately $100,000 of the maximum $300,000 principal amount subject to being tendered. The settlement of the reverse treasury lock on May 13, 2021 resulted in a loss of $1,356. The loss is included in "Loss from the early extinguishment of debt" on the Company's Condensed Consolidated Statements of Income for the three and six months ended July 4, 2021. The following tables set forth the effect of the Company’s derivative instruments on financial performance for the three months ended July 4, 2021 and June 28, 2020, excluding the gains on foreign currency cash flow hedges that were reclassified from accumulated other comprehensive income to the carrying value of the capitalized expenditures: Description Amount of Gain or Location of Gain Amount of Gain or Derivatives in Cash Flow Hedging Relationships: Three months ended July 4, 2021 Foreign Exchange Contracts $ 751 Net sales $ 1,489 Cost of sales $ (1,190) Commodity Contracts $ 4,847 Cost of sales $ 646 Three months ended June 28, 2020 Foreign Exchange Contracts $ (97) Net sales $ (3,384) Cost of sales $ 2,050 Commodity Contracts $ 1,709 Cost of sales $ 525 Description Gain or (Loss) Location of Gain or (Loss) Recognized in Derivatives not Designated as Hedging Instruments: Three months ended July 4, 2021 Commodity Contracts $ 56 Cost of sales Foreign Exchange Contracts $ 220 Selling, general and administrative Three months ended June 28, 2020 Commodity Contracts $ 184 Cost of sales Foreign Exchange Contracts $ 866 Selling, general and administrative Three months ended July 4, 2021 Three months ended June 28, 2020 Description Revenue Cost of Revenue Cost of Total amount of income and expense line items presented in the Condensed Consolidated Statements of Income $ 1,489 $ (544) $ (3,384) $ 2,575 The effects of cash flow hedging: Gain or (loss) on cash flow hedging relationships: Foreign exchange contracts: Amount of gain or (loss) reclassified from accumulated other comprehensive income into net income $ 1,489 $ (1,190) $ (3,384) $ 2,050 Commodity contracts: Amount of gain reclassified from accumulated other comprehensive income into net income $ — $ 646 $ — $ 525 The following tables set forth the effect of the Company’s derivative instruments on financial performance for the six months ended July 4, 2021 and June 28, 2020, excluding the gains on foreign currency cash flow hedges that were reclassified from accumulated other comprehensive income to the carrying value of the capitalized expenditures: Description Amount of Gain or Location of Gain Amount of Gain or Derivatives in Cash Flow Hedging Relationships: Six months ended July 4, 2021 Foreign Exchange Contracts $ 563 Net sales $ 1,829 Cost of sales $ (1,418) Commodity Contracts $ 6,601 Cost of sales $ 575 Six months ended June 28, 2020 Foreign Exchange Contracts $ (5,075) Net sales $ (4,522) Cost of sales $ 2,877 Commodity Contracts $ (646) Cost of sales $ (554) Description Gain or (Loss) Location of Gain or (Loss) Recognized in Derivatives not Designated as Hedging Instruments: Six months ended July 4, 2021 Commodity Contracts $ 434 Cost of sales Foreign Exchange Contracts $ (405) Selling, general and administrative Six months ended June 28, 2020 Commodity Contracts $ 184 Cost of sales Foreign Exchange Contracts $ (4,051) Selling, general and administrative Six months ended July 4, 2021 Six months ended June 28, 2020 Description Revenue Cost of Revenue Cost of Total amount of income and expense line items presented in the Condensed Consolidated Statements of Income $ 1,829 $ (843) $ (4,522) $ 2,324 The effects of cash flow hedging: Gain or (loss) on cash flow hedging relationships: Foreign exchange contracts: Amount of gain or (loss) reclassified from accumulated other comprehensive income into net income $ 1,829 $ (1,418) $ (4,522) $ 2,877 Commodity contracts: Amount of gain or (loss) reclassified from accumulated other comprehensive income into net income $ — $ 575 $ — $ (554)

Fair Value Measurements

Fair Value Measurements	6 Months Ended
	Jul. 04, 2021
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements Fair value is defined as an exit price, representing the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. Fair value is a market-based measurement that is determined based on assumptions that market participants would use in pricing an asset or liability. A three-tier fair value hierarchy is used to prioritize the inputs in measuring fair value as follows: Level 1 – Observable inputs such as quoted market prices in active markets; Level 2 – Inputs, other than quoted prices in active markets, that are observable either directly or indirectly; and Level 3 – Unobservable inputs for which there is little or no market data, which require the reporting entity to develop its own assumptions. The following table sets forth information regarding the Company’s financial assets and financial liabilities, excluding retirement and postretirement plan assets, measured at fair value on a recurring basis: Description July 4, 2021 Assets measured Level 1 Level 2 Level 3 Hedge derivatives, net: Commodity contracts $ 5,381 $ — $ — $ 5,381 $ — Foreign exchange contracts $ 489 $ — $ — $ 489 $ — Non-hedge derivatives, net: Foreign exchange contracts $ 172 $ — $ — $ 172 $ — Description December 31, 2020 Assets measured Level 1 Level 2 Level 3 Hedge derivatives, net: Commodity contracts $ (647) $ — $ — $ (647) $ — Foreign exchange contracts $ 602 $ — $ — $ 602 $ — Non-hedge derivatives, net: Commodity contracts $ 484 $ — $ — $ 484 $ — Foreign exchange contracts $ 115 $ — $ — $ 115 $ — As discussed in Note 9, the Company uses derivatives to mitigate the effect of raw material and energy cost fluctuations, foreign currency fluctuations and, from time to time, interest rate movements. Fair value measurements for the Company’s derivatives are classified under Level 2 because such measurements are estimated based on observable inputs such as interest rates, yield curves, spot and future commodity prices and spot and future exchange rates. The Company does not currently have any non-financial assets or liabilities that are recognized or disclosed at fair value on a recurring basis. None of the Company’s financial assets or liabilities are measured at fair value using significant unobservable inputs. There were no transfers in or out of Level 1 or Level 2 fair value measurements during the three- and six-month periods ended July 4, 2021.

Employee Benefit Plans

Employee Benefit Plans	6 Months Ended
	Jul. 04, 2021
Retirement Benefits [Abstract]
Employee Benefit Plans	Employee Benefit Plans Retirement Plans and Retiree Health and Life Insurance Plans The Company provides non-contributory defined benefit pension plans to certain of its employees in the United States, Mexico and Belgium. The Company also sponsors contributory defined benefit pension plans covering the majority of its employees in the United Kingdom, Canada, and the Netherlands. In addition, the Company provides postretirement healthcare and life insurance benefits to a limited number of its retirees and their dependents in the United States and Canada, based on certain age and/or service eligibility requirements. The Company froze participation in its U.S. qualified defined benefit pension plan for newly hired salaried and non-union hourly employees effective December 31, 2003. To replace this benefit, non-union U.S. employees hired on or after January 1, 2004, are provided an annual contribution, called the Sonoco Retirement Contribution (SRC), to their participant accounts in the Sonoco Retirement and Savings Plan. The SRC is equal to 4% of the participant's eligible pay plus 4% of eligible pay in excess of the social security wage base. On February 4, 2009, the U.S. qualified defined benefit pension plan was further amended to freeze plan benefits for all active, non-union participants effective December 31, 2018. Remaining active participants in the U.S. qualified plan became eligible for SRC contributions effective January 1, 2019. The components of net periodic benefit cost include the following: Three Months Ended Six Months Ended July 4, 2021 June 28, 2020 July 4, 2021 June 28, 2020 Retirement Plans Service cost $ 1,020 $ 1,003 $ 1,981 $ 2,085 Interest cost 9,657 12,549 19,764 25,230 Expected return on plan assets (8,650) (12,227) (18,311) (24,807) Amortization of prior service cost 235 247 461 497 Amortization of net actuarial loss 6,378 7,258 13,249 14,134 Effect of curtailment loss — 31 — 31 Effect of settlement loss 547,631 38 547,631 661 Net periodic benefit cost $ 556,271 $ 8,899 $ 564,775 $ 17,831 Retiree Health and Life Insurance Plans Service cost $ 95 $ 93 $ 189 $ 176 Interest cost 50 81 100 165 Expected return on plan assets (111) (93) (224) (183) Amortization of prior service credit — (69) — (137) Amortization of net actuarial gain (181) (215) (377) (412) Net periodic benefit income $ (147) $ (203) $ (312) $ (391) The Company made aggregate contributions of $139,687 and $8,602 to its defined benefit retirement and retiree health and life insurance plans during the six months ended July 4, 2021 and June 28, 2020, respectively. The Company expects to make additional aggregate contributions of approximately $7,000 to its defined benefit retirement and retiree health and life insurance plans over the remainder of 2021. Plan Termination and Settlement As disclosed in previous filings, the Company terminated the Sonoco Pension Plan for Inactive Participants (the "Inactive Plan"), a tax-qualified defined benefit plan, effective September 30, 2019. The Company settled the liabilities of the Inactive Plan in the second quarter of 2021 through a combination of lump-sum payments and the purchase of group annuity contracts. In order for the Inactive Plan to be fully funded upon final settlement, the Company made contributions totaling $133,000 during the second quarter of 2021. Non-cash, pre-tax settlement charges totaling $547,291 were recognized in the second quarter of 2021 as the lump sum payouts and annuity purchases were made. Other Settlements The Company recognized additional settlement cha rges of $340 and $661 during the six months ended July 4, 2021 and June 28, 2020, respectively. These charges resulted from payments made to certain participants in the Company's non-union Canadian pension plan who elected a lump sum distribution option upon retirement. Additional settlement charges related to the Canadian pension plans may be recognized over the remainder of 2021 as a result of ongoing lump-sum distributions and restructuring actions. Sonoco Retirement Contribution (SRC) SRC contributions, which are funded annually in the first quarter, totaled $22,665 during the six months ended July 4, 2021, and $22,503 during the six months ended June 28, 2020. No additional SRC contributions are expected during the remainder of 2021. The Company recognized expense related to the SRC of $5,499 and $5,716 for the three months ended July 4, 2021 and June 28, 2020, respectively, and $11,834 and $11,694 for the six months ended July 4, 2021 and June 28, 2020, respectively.

Income Taxes

Income Taxes	6 Months Ended
	Jul. 04, 2021
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company’s effective tax rates for the three- and six-month periods ended July 4, 2021 were 26.0% and 26.2%, respectively, and its effective tax rates for the three- and six-month periods ended June 28, 2020 were 30.0% and 27.2%, respectively. The rates for the three- and six-month periods ended July 4, 2021 and June 28, 2020 varied from the U.S. statutory rate due primarily to the unfavorable effect of certain international operations that were subject to tax rates generally higher than the U.S. statutory tax rate, the effect of state income taxes, and the effect of the Global Intangible Low Taxed Income (GILTI) tax. As previously disclosed, in February 2017 the Company received a Notice of Proposed Adjustment (“NOPA”) from the Internal Revenue Service (“IRS”) proposing adjustments to the 2012 and 2013 tax years. In 2018, the Company filed a protest to the proposed deficiency and the matter was referred to the Appeals Division of the IRS. In the second quarter of 2021, the Company paid $5,613 in taxes and interest to settle the dispute. The Company and/or its subsidiaries file federal, state and local income tax returns in the United States and various foreign jurisdictions. With few exceptions, the Company is no longer subject to income tax examinations by tax authorities for years prior to 2012. The Company is currently reviewing its utilization of foreign tax credits in previously filed income tax returns and, accordingly, may elect to amend its existing tax filings. A conclusion on this matter is expected to be reached in the next three months, and it is reasonably possible that a benefit material to the Company's financial statements will be recognized at that time.

Leases

Leases	6 Months Ended
	Jul. 04, 2021
Leases [Abstract]
Leases	Leases The Company routinely enters into leasing arrangements for real estate (including manufacturing facilities, office space, warehouses, and packaging centers), transportation equipment (automobiles, forklifts, and trailers), and office equipment (copiers and postage machines). The assessment of the certainty associated with the exercise of various lease renewal, termination, and purchase options included in the Company's lease contracts is at the Company's sole discretion. Most real estate leases, in particular, include one or more options to renew, with renewal terms that can extend the lease term from one As the implicit rate in the Company's leases is not readily determinable, the Company calculates its lease liabilities using discount rates based upon the Company’s incremental secured borrowing rate, which contemplates and reflects a particular geographical region’s interest rate for the leases active within that region of the Company’s global operations. The Company further utilizes a portfolio approach by assigning a “short” rate to contracts with lease terms of 10 years or less and a “long” rate for contracts greater than 10 years. The following table sets forth the balance sheet location and values of the Company’s lease assets and lease liabilities at July 4, 2021 and December 31, 2020: Classification Balance Sheet Location July 4, 2021 December 31, 2020 Lease Assets Operating lease assets Right of Use Asset - Operating Leases $ 271,241 $ 296,020 Finance lease assets Other Assets 47,667 36,267 Total lease assets $ 318,908 $ 332,287 Lease Liabilities Current operating lease liabilities Accrued expenses and other $ 46,062 $ 52,138 Current finance lease liabilities Notes payable and current portion of debt 6,075 4,663 Total current lease liabilities $ 52,137 $ 56,801 Noncurrent operating lease liabilities Noncurrent Operating Lease Liabilities $ 237,447 $ 262,048 Noncurrent finance lease liabilities Long-term Debt, Net of Current Portion 45,552 33,280 Total noncurrent lease liabilities $ 282,999 $ 295,328 Total lease liabilities $ 335,136 $ 352,129 Certain of the Company’s leases include variable costs. Variable costs include lease payments that were volume or usage-driven in accordance with the use of the underlying asset, and also non-lease components that were incurred based upon actual terms rather than contractually fixed amounts. In addition, variable costs are incurred for lease payments that are indexed to a change in rate or index. Because the right of use assets recorded on the balance sheet were determined based upon factors considered at the commencement date of the leases, subsequent changes in the rate or index that were not contemplated in the right of use asset balances recorded on the balance sheet result in variable expenses being incurred when paid during the lease term. The following table sets forth the components of the Company's total lease cost for the three- and six- month periods ended July 4, 2021 and June 28, 2020: Three Months Ended Six Months Ended Lease Cost July 4, 2021 June 28, 2020 July 4, 2021 June 28, 2020 Operating lease cost (a) $ 11,902 $ 14,360 $ 25,097 $ 28,711 Finance lease cost: Amortization of lease asset (a) (b) 1,332 2,391 2,657 4,938 Interest on lease liabilities (c) 337 238 630 463 Variable lease cost (a) (d) 6,689 8,576 12,773 21,861 Total lease cost $ 20,260 $ 25,565 $ 41,157 $ 55,973 (a) Production-related and administrative amounts are included in cost of sales and selling, general and administrative expenses, respectively. (b) Included in depreciation and amortization. (c) Included in interest expense. (d) Also includes short term lease costs, which are deemed immaterial . The following table sets forth certain lease-related information for the six months ended July 4, 2021 and June 28, 2020: Six Months Ended July 4, 2021 June 28, 2020 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows used by operating leases $ 26,620 $ 29,309 Operating cash flows used by finance leases $ 630 $ 463 Financing cash flows used by finance leases $ 2,156 $ 5,389 Noncash investing and financing activities: Leased assets obtained in exchange for new operating lease liabilities $ 6,705 $ 25,896 Leased assets obtained in exchange for new finance lease liabilities $ 5,879 $ 8,237 Modification to leased assets for increase in operating lease liabilities $ 6,845 $ 3,804 Modification to leased assets for increase in finance lease liabilities $ 9,586 $ 11,007 Termination reclasses to (decrease) operating lease assets $ (4,319) $ (2,188) Termination reclasses to (decrease) operating lease liabilities $ (4,336) $ (2,353) Termination reclasses to (decrease) finance lease assets $ (21) $ (19,994) Termination reclasses to (decrease) finance lease liabilities $ (23) $ (20,121)
Leases	Leases The Company routinely enters into leasing arrangements for real estate (including manufacturing facilities, office space, warehouses, and packaging centers), transportation equipment (automobiles, forklifts, and trailers), and office equipment (copiers and postage machines). The assessment of the certainty associated with the exercise of various lease renewal, termination, and purchase options included in the Company's lease contracts is at the Company's sole discretion. Most real estate leases, in particular, include one or more options to renew, with renewal terms that can extend the lease term from one As the implicit rate in the Company's leases is not readily determinable, the Company calculates its lease liabilities using discount rates based upon the Company’s incremental secured borrowing rate, which contemplates and reflects a particular geographical region’s interest rate for the leases active within that region of the Company’s global operations. The Company further utilizes a portfolio approach by assigning a “short” rate to contracts with lease terms of 10 years or less and a “long” rate for contracts greater than 10 years. The following table sets forth the balance sheet location and values of the Company’s lease assets and lease liabilities at July 4, 2021 and December 31, 2020: Classification Balance Sheet Location July 4, 2021 December 31, 2020 Lease Assets Operating lease assets Right of Use Asset - Operating Leases $ 271,241 $ 296,020 Finance lease assets Other Assets 47,667 36,267 Total lease assets $ 318,908 $ 332,287 Lease Liabilities Current operating lease liabilities Accrued expenses and other $ 46,062 $ 52,138 Current finance lease liabilities Notes payable and current portion of debt 6,075 4,663 Total current lease liabilities $ 52,137 $ 56,801 Noncurrent operating lease liabilities Noncurrent Operating Lease Liabilities $ 237,447 $ 262,048 Noncurrent finance lease liabilities Long-term Debt, Net of Current Portion 45,552 33,280 Total noncurrent lease liabilities $ 282,999 $ 295,328 Total lease liabilities $ 335,136 $ 352,129 Certain of the Company’s leases include variable costs. Variable costs include lease payments that were volume or usage-driven in accordance with the use of the underlying asset, and also non-lease components that were incurred based upon actual terms rather than contractually fixed amounts. In addition, variable costs are incurred for lease payments that are indexed to a change in rate or index. Because the right of use assets recorded on the balance sheet were determined based upon factors considered at the commencement date of the leases, subsequent changes in the rate or index that were not contemplated in the right of use asset balances recorded on the balance sheet result in variable expenses being incurred when paid during the lease term. The following table sets forth the components of the Company's total lease cost for the three- and six- month periods ended July 4, 2021 and June 28, 2020: Three Months Ended Six Months Ended Lease Cost July 4, 2021 June 28, 2020 July 4, 2021 June 28, 2020 Operating lease cost (a) $ 11,902 $ 14,360 $ 25,097 $ 28,711 Finance lease cost: Amortization of lease asset (a) (b) 1,332 2,391 2,657 4,938 Interest on lease liabilities (c) 337 238 630 463 Variable lease cost (a) (d) 6,689 8,576 12,773 21,861 Total lease cost $ 20,260 $ 25,565 $ 41,157 $ 55,973 (a) Production-related and administrative amounts are included in cost of sales and selling, general and administrative expenses, respectively. (b) Included in depreciation and amortization. (c) Included in interest expense. (d) Also includes short term lease costs, which are deemed immaterial . The following table sets forth certain lease-related information for the six months ended July 4, 2021 and June 28, 2020: Six Months Ended July 4, 2021 June 28, 2020 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows used by operating leases $ 26,620 $ 29,309 Operating cash flows used by finance leases $ 630 $ 463 Financing cash flows used by finance leases $ 2,156 $ 5,389 Noncash investing and financing activities: Leased assets obtained in exchange for new operating lease liabilities $ 6,705 $ 25,896 Leased assets obtained in exchange for new finance lease liabilities $ 5,879 $ 8,237 Modification to leased assets for increase in operating lease liabilities $ 6,845 $ 3,804 Modification to leased assets for increase in finance lease liabilities $ 9,586 $ 11,007 Termination reclasses to (decrease) operating lease assets $ (4,319) $ (2,188) Termination reclasses to (decrease) operating lease liabilities $ (4,336) $ (2,353) Termination reclasses to (decrease) finance lease assets $ (21) $ (19,994) Termination reclasses to (decrease) finance lease liabilities $ (23) $ (20,121)

Revenue Recognition

Revenue Recognition	6 Months Ended
	Jul. 04, 2021
Revenue from Contract with Customer [Abstract]
Revenue Recognition	Revenue Recognition The Company records revenue when control is transferred to the customer, which is either upon shipment or over time in cases where the Company is entitled to payment with margin for products produced that are customer specific without alternative use. The Company recognizes over time revenue under the input method as goods are produced. Revenue that is recognized at a point in time is recognized when the customer obtains control of the goods. Customers obtain control either when goods are delivered to the customer facility, if the Company is responsible for arranging transportation, or when picked up by the customer's designated carrier. The Company commonly enters into Master Supply Arrangements with customers to provide goods and/or services over specific time periods. Customers submit purchase orders with quantities and prices to create a contract for accounting purposes. Shipping and handling expenses are included in "Cost of Sales," and freight charged to customers is included in "Net Sales" in the Company's Condensed Consolidated Statements of Income. The Company has rebate agreements with certain customers. These rebates are recorded as reductions of revenue and are accrued using sales data and rebate percentages specific to each customer agreement. Accrued customer rebates are included in "Accrued expenses and other" in the Company's Condensed Consolidated Balance Sheets. Payment terms under the Company's sales arrangements are short term, generally no longer than 120 days. The Company does provide prompt payment discounts to certain customers if invoices are paid within a predetermined period. Prompt payment discounts are treated as a reduction of revenue and are determinable within a short time period following the sale. The following tables set forth the effects of contract assets and liabilities from contracts with customers. Contract assets and liabilities are reported in "Other receivables" and "Accrued expenses and other," respectively, on the Company's Condensed Consolidated Balance Sheets. July 4, 2021 December 31, 2020 Contract Assets $ 49,666 $ 48,390 Contract Liabilities $ (17,243) $ (16,687) Significant changes in the contract assets and liabilities balances during the six months ended July 4, 2021 and the year ended December 31, 2020 were as follows: July 4, 2021 December 31, 2020 Contract Contract Contract Contract Beginning Balance $ 48,390 $ (16,687) $ 56,364 $ (17,047) Revenue deferred or rebates accrued — (20,817) — (32,512) Recognized as revenue 3,347 9,189 Rebates paid to customers — 16,914 — 23,683 Increases due to rights to consideration for customer specific goods produced, but not billed during the period 49,666 — 48,390 — Transferred to receivables from contract assets recognized at the beginning of the period (48,390) — (56,364) — Ending Balance $ 49,666 $ (17,243) $ 48,390 $ (16,687) Contract assets and liabilities are generally short in duration given the nature of products produced by the Company. Contract assets represent goods produced without alternative use for which the Company is entitled to payment with margin prior to shipment. Upon shipment, the Company is entitled to bill the customer, and therefore amounts included in contract assets will be reduced with the recording of an account receivable as they represent an unconditional right to payment. Contract liabilities represent revenue deferred due to pricing mechanisms utilized by the Company in certain multi-year arrangements, volume rebates, and payments received in advance. For multi-year arrangements with pricing mechanisms, the Company will generally defer revenue during the first half of the arrangement and will release the deferral over the back half of the contract term. The Company's reportable segments are aligned by product nature as disclosed in Note 15 . The following tables set forth information about revenue disaggregated by primary geographic regions for the three-month periods ended July 4, 2021 and June 28, 2020. The tables also include a reconciliation of disaggregated revenue with reportable segments. Three months ended July 4, 2021 Consumer Packaging Industrial Paper Packaging All Other Total Primary Geographical Markets: United States $ 413,576 $ 346,367 $ 142,236 $ 902,179 Europe 110,248 104,238 21,930 236,416 Canada 30,193 23,985 — 54,178 Asia 18,375 78,189 279 96,843 Other 25,411 55,753 11,974 93,138 Total $ 597,803 $ 608,532 $ 176,419 $ 1,382,754 Three months ended June 28, 2020 Consumer Packaging Industrial Paper Packaging All Other Total Primary Geographical Markets: United States $ 419,144 $ 273,325 $ 136,725 $ 829,194 Europe 90,329 75,279 76,909 242,517 Canada 26,732 20,996 — 47,728 Asia 17,744 52,799 186 70,729 Other 19,217 32,627 3,473 55,317 Total $ 573,166 $ 455,026 $ 217,293 $ 1,245,485 The following tables set forth information about revenue disaggregated by primary geographic regions for the six-month periods ended July 4, 2021 and June 28, 2020. The tables also include a reconciliation of disaggregated revenue with reportable segments. Six months ended July 4, 2021 Consumer Industrial Paper Packaging All Other Total Primary Geographical Markets: United States $ 811,373 $ 671,589 $ 316,967 $ 1,799,929 Europe 225,428 200,922 43,339 469,689 Canada 56,336 45,031 — 101,367 Asia 39,528 151,561 520 191,609 Other 47,891 104,826 20,747 173,464 Total $ 1,180,556 $ 1,173,929 $ 381,573 $ 2,736,058 Six months ended June 28, 2020 Consumer Packaging Industrial Paper Packaging All Other Total Primary Geographical Markets: United States $ 806,409 $ 569,545 $ 303,705 $ 1,679,659 Europe 180,152 158,819 161,040 500,011 Canada 52,577 46,573 — 99,150 Asia 34,282 108,583 388 143,253 Other 40,315 73,997 12,396 126,708 Total $ 1,113,735 $ 957,517 $ 477,529 $ 2,548,781

Segment Reporting

Segment Reporting	6 Months Ended
	Jul. 04, 2021
Segment Reporting [Abstract]
Segment Reporting	Segment Reporting The Company changed its operating and reporting structure in January 2021 and, as a result, realigned certain of its reportable segments effective January 1, 2021. The revised structure consists of two reportable segments, Consumer Packaging and Industrial Paper Packaging, with all remaining businesses reported as "All Other." The Company's former Protective Solutions and Display and Packaging segments have been eliminated and the underlying businesses and their results have been realigned into All Other or, in certain cases, subsumed into the remaining two segments. The Consumer Packaging segment primarily serves prepared and fresh food markets along with other packaging for direct consumer products and includes the following products and services: round and shaped rigid paper containers; metal and peelable membrane ends and closures; thermoformed plastic trays and containers; p rinted flexible packaging; and global brand artwork management. The Industrial Paper Packaging segment, previously called Paper and Industrial Converted Products, includes the following products: fiber-based tubes, cones, and cores; fiber-based construction tubes; fiber-based protective packaging and components; wooden, metal and composite wire and cable reels and spools; and recycled paperboard, corrugating medium, recovered paper and material recycling services. Businesses grouped as All Other include healthcare, protective and retail packaging and industrial plastic products. These businesses include the following products and services: thermoformed rigid plastic trays and devices; custom-engineered molded foam protective packaging and components; temperature-assured packaging; injection molded and extruded containers, spools and parts; retail packaging, including printed backer cards, thermoformed blisters and heat sealing equipment; and paper amenities. Prior to the divestiture of the Company's display and packaging operations in two separate transactions, one on November 30, 2020 (Display and Packaging - Europe) and one on April 4, 2021 (Display and Packaging - U.S.), these businesses, which included point-of-purchase displays and fulfillment operations, were reported in All Other. The following table sets forth net sales, intersegment sales and operating profit for the Company’s reportable segments and All Other. “Segment operating profit” is defined as the segment’s portion of “Operating profit” excluding restructuring and asset impairment charges, acquisition expenses, interest income and expense, income taxes or certain other items, if any, the exclusion of which the Company believes improves comparability and analysis of the financial performance of the business. General corporate expenses have been allocated as operating costs to each of the Company’s reportable segments and All Other. Prior period results have been recast to conform to current-year presentation. SEGMENT FINANCIAL INFORMATION Three Months Ended Six Months Ended July 4, 2021 June 28, 2020 July 4, 2021 June 28, 2020 Net sales: Consumer Packaging $ 597,803 $ 573,166 $ 1,180,556 $ 1,113,735 Industrial Paper Packaging 608,532 455,026 1,173,929 957,517 All Other 176,419 217,293 381,573 477,529 Consolidated $ 1,382,754 $ 1,245,485 $ 2,736,058 $ 2,548,781 Intersegment sales: Consumer Packaging $ 1,199 $ 1,154 $ 2,852 $ 2,260 Industrial Paper Packaging 27,700 24,508 54,596 49,010 All Other 2,140 1,474 5,165 4,156 Consolidated $ 31,039 $ 27,136 $ 62,613 $ 55,426 Operating profit: Segment operating profit: Consumer Packaging $ 59,813 $ 84,449 $ 135,423 $ 148,205 Industrial Paper Packaging 57,885 33,235 108,071 92,836 All Other 10,912 8,872 24,783 29,427 Restructuring/Asset impairment income/(charges) 1,445 (22,885) (5,401) (35,484) Other non-base income/(charges), net 5,236 56 (7,276) (1,154) Consolidated $ 135,291 $ 103,727 $ 255,600 $ 233,830

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jul. 04, 2021
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Pursuant to U.S. GAAP, accruals for estimated losses are recorded at the time information becomes available indicating that losses are probable and that the amounts are reasonably estimable. As is the case with other companies in similar industries, the Company faces exposure from actual or potential claims and legal proceedings from a variety of sources. Some of these exposures, as discussed below, have the potential to be material. Environmental Matters The Company is subject to a variety of environmental and pollution control laws and regulations in all jurisdictions in which it operates. Spartanburg In connection with its acquisition of Tegrant in November 2011, the Company identified potential environmental contamination at a site in Spartanburg, South Carolina. The total remediation cost of the Spartanburg site was estimated to be $17,400 at the time of acquisition and an accrual in this amount was recorded on Tegrant’s opening balance sheet. Based on favorable developments at the site, the Company reduced its environmental reserve by $10,000 in the third quarter of 2019 in order to reflect its revised best estimate of what it is likely to pay in order to complete the remediation. Since the acquisition, the Company has spent a total of $1,760 on remediation of the Spartanburg site. At July 4, 2021 and December 31, 2020, the Company's accrual for environmental contingencies related to the Spartanburg site totaled $5,640 and $5,700, respectively. The Company cannot currently estimate its potential liability, damages or range of potential loss, if any, beyond the amounts accrued with respect to this exposure. However, the Company does not believe that the resolution of this matter has a reasonable possibility of having a material adverse effect on the Company's financial statements. Other environmental matters The Company has been named as a potentially responsible party at several other environmentally contaminated sites. All of the sites are also the responsibility of other parties. The potential remediation liabilities are shared with such other parties, and, in most cases, the Company’s share, if any, cannot be reasonably estimated at the current time. However, the Company does not believe that the resolution of these matters has a reasonable possibility of having a material adverse effect on the Company's financial statements. At July 4, 2021 and December 31, 2020, the Company's accrual for these other sites totaled $1,866 and $2,433, respectively. Summary As of July 4, 2021 and December 31, 2020, the Company (and its subsidiaries) had accrued $7,506 and $8,133, respectively, related to environmental contingencies. These accruals are included in “Accrued expenses and other” on the Company’s Condensed Consolidated Balance Sheets. Other Legal Matters In addition to those matters described above, the Company is subject to other various legal proceedings, claims, and litigation arising in the ordinary course of business. While the outcome of these matters could differ from management’s expectations, the Company does not believe the resolution of these matters has a reasonable possibility of having a material adverse effect on the Company’s financial statements.

New Accounting Pronouncements (

New Accounting Pronouncements (Policies)	6 Months Ended
	Jul. 04, 2021
Accounting Changes and Error Corrections [Abstract]
New Accounting Pronouncements	During the six-month period ended July 4, 2021, there have been no newly issued nor newly applicable accounting pronouncements that have had, or are expected to have, a material impact on the Company’s financial statements. Further, at July 4, 2021, there are no other pronouncements pending adoption that are expected to have a material impact on the Company’s consolidated financial statements.
Fair Value Measurements	Fair value is defined as an exit price, representing the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. Fair value is a market-based measurement that is determined based on assumptions that market participants would use in pricing an asset or liability. A three-tier fair value hierarchy is used to prioritize the inputs in measuring fair value as follows: Level 1 – Observable inputs such as quoted market prices in active markets; Level 2 – Inputs, other than quoted prices in active markets, that are observable either directly or indirectly; and Level 3 – Unobservable inputs for which there is little or no market data, which require the reporting entity to develop its own assumptions.
Commitments and Contingencies	Pursuant to U.S. GAAP, accruals for estimated losses are recorded at the time information becomes available indicating that losses are probable and that the amounts are reasonably estimable. As is the case with other companies in similar industries, the Company faces exposure from actual or potential claims and legal proceedings from a variety of sources.

Acquisitions and Divestitures (

Acquisitions and Divestitures (Tables)	6 Months Ended
	Jul. 04, 2021
Business Combination and Asset Acquisition [Abstract]
Schedule of Assets and Liabilities Held-for-sale	Assets and liabilities disposed of in the sale included the following: U.S. Display and Packaging Trade accounts receivable $ 26,342 Inventories 8,434 Property, plant and equipment, net 9,551 Right of use asset - operating leases 11,627 Goodwill 53,039 Trade accounts payable (10,735) Accrued expenses (1,411) Operating lease liabilities (12,343) Other net tangible assets 716 $ 85,220

Shareholders' Equity (Tables)

Shareholders' Equity (Tables)	6 Months Ended
	Jul. 04, 2021
Equity [Abstract]
(Loss) / Earnings per share	The following table sets forth the computation of basic and diluted (loss)/earnings per share: Three Months Ended Six Months Ended July 4, 2021 June 28, 2020 July 4, 2021 June 28, 2020 Numerator: Net (loss)/income attributable to Sonoco $ (334,070) $ 55,211 $ (261,774) $ 135,656 Denominator: Weighted average common shares outstanding: Basic 100,082 100,971 100,571 100,915 Dilutive effect of stock-based compensation — 138 — 194 Diluted 100,082 101,109 100,571 101,109 Net (loss)/income attributable to Sonoco per common share: Basic $ (3.34) $ 0.55 $ (2.60) $ 1.34 Diluted $ (3.34) $ 0.55 $ (2.60) $ 1.34 Cash dividends $ 0.45 $ 0.43 $ 0.90 $ 0.86
Schedule of antidilutive securities excluded from computation of earnings per share	The average numbers of SARs that were anti-dilutive and, therefore, not included in the computation of diluted earnings per share during the three- and six-month periods ended July 4, 2021 and June 28, 2020 were as follows: Three Months Ended Six Months Ended July 4, 2021 June 28, 2020 July 4, 2021 June 28, 2020 Anti-dilutive stock appreciation rights — 1,191 214 890 Three Months Ended Six Months Ended July 4, 2021 July 4, 2021 Dilutive securities excluded due to reported loss 486 469

Restructuring and Asset Impai_2

Restructuring and Asset Impairment (Tables)	6 Months Ended
	Jul. 04, 2021
Restructuring and Related Activities [Abstract]
Restructuring and restructuring-related asset impairment expenses by type incurred and by reportable segment	Following are the total restructuring and asset impairment charges, net of adjustments, recognized during the periods presented: Three Months Ended Six Months Ended July 4, 2021 June 28, 2020 July 4, 2021 June 28, 2020 Restructuring and restructuring-related asset impairment (income)/charges $ (1,853) $ 22,885 $ 844 $ 35,484 Other asset impairments 408 — 4,557 — Restructuring/Asset Impairment (Income)/Charges $ (1,445) $ 22,885 $ 5,401 $ 35,484 The table below sets forth restructuring and restructuring-related asset impairment charges by type incurred: Three Months Ended Six Months Ended July 4, 2021 June 28, 2020 July 4, 2021 June 28, 2020 Severance and Termination Benefits $ 2,438 $ 15,159 $ 3,866 $ 25,259 Asset Impairment / Disposal of Assets (5,621) 6,073 (6,485) 8,759 Other Costs 1,330 1,653 3,463 1,466 Restructuring and restructuring-related asset impairment (income)/charges $ (1,853) $ 22,885 $ 844 $ 35,484 The table below sets forth restructuring and restructuring-related asset impairment charges by reportable segment: Three Months Ended Six Months Ended July 4, 2021 June 28, 2020 July 4, 2021 June 28, 2020 Consumer Packaging $ 173 $ 2,007 $ 1,258 $ 4,209 Industrial Paper Packaging (4,372) 17,689 (2,939) 23,199 All Other 2,355 2,606 2,520 5,965 Corporate (9) 583 5 2,111 Restructuring and restructuring-related asset impairment (income)/charges $ (1,853) $ 22,885 $ 844 $ 35,484
Restructuring accrual activity	The following table sets forth the activity in the restructuring accrual included in “Accrued expenses and other” on the Company’s Condensed Consolidated Balance Sheets: Severance Asset Other Total Accrual Activity Liability at December 31, 2020 $ 15,955 $ — $ 511 $ 16,466 2021 charges 3,866 (6,485) 3,463 844 Cash receipts/(payments) (11,160) 10,279 (3,720) (4,601) Asset write downs/disposals — (3,794) 353 (3,441) Foreign currency translation (265) — 1 (264) Liability at July 4, 2021 $ 8,396 $ — $ 608 $ 9,004

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Loss (Tables)	6 Months Ended
	Jul. 04, 2021
Equity [Abstract]
Components of accumulated other comprehensive loss	The following table summarizes the components of accumulated other comprehensive loss and the changes in the balances of each component of accumulated other comprehensive loss, net of tax as applicable, for the six months ended July 4, 2021 and June 28, 2020: Foreign Defined Cash Accumulated Balance at December 31, 2020 $ (194,024) $ (562,747) $ (71) $ (756,842) Other comprehensive (loss)/income before reclassifications (20,184) 10,888 5,219 (4,077) Amounts reclassified from accumulated other comprehensive loss to net loss — 417,242 (733) 416,509 Amounts reclassified from accumulated other comprehensive loss to fixed assets — — (46) (46) Other comprehensive (loss)/income (20,184) 428,130 4,440 412,386 Balance at July 4, 2021 $ (214,208) $ (134,617) $ 4,369 $ (344,456) Balance at December 31, 2019 $ (241,994) $ (574,413) $ (396) $ (816,803) Other comprehensive (loss)/income before reclassifications (60,121) (862) (4,402) (65,385) Amounts reclassified from accumulated other comprehensive loss to net income — 11,058 1,677 12,735 Other comprehensive (loss)/income (60,121) 10,196 (2,725) (52,650) Balance at June 28, 2020 $ (302,115) $ (564,217) $ (3,121) $ (869,453)
Effects on net income of significant amounts reclassified from accumulated other comprehensive loss	The following table summarizes the effects on net income of significant amounts reclassified from each component of accumulated other comprehensive loss for the three- and six-month periods ended July 4, 2021 and June 28, 2020: Amount Reclassified from Accumulated Three Months Ended Six Months Ended Details about Accumulated Other July 4, June 28, July 4, June 28, Affected Line Item in Gains/(losses) on cash flow hedges Foreign exchange contracts $ 1,489 $ (3,384) $ 1,829 $ (4,522) Net sales Foreign exchange contracts (1,190) 2,050 (1,418) 2,877 Cost of sales Commodity contracts 646 525 575 (554) Cost of sales $ 945 $ (809) $ 986 (2,199) (Loss)/Income before income taxes (241) 197 (253) 522 Benefit from /(Provision for) income taxes $ 704 $ (612) $ 733 (1,677) Net (loss)/income Defined benefit pension items Effect of curtailment loss (a) — (31) — (31) Non-operating pension costs Effect of settlement loss (a) (547,631) (38) (547,631) (661) Non-operating pension costs Amortization of defined benefit pension items (a) (6,432) (7,221) (13,333) (14,082) Non-operating pension costs $ (554,063) $ (7,290) $ (560,964) (14,774) (Loss)/Income before income taxes 142,090 1,815 143,722 3,716 Benefit from /(Provision for) income taxes $ (411,973) $ (5,475) $ (417,242) (11,058) Net (loss)/income Total reclassifications for the period $ (411,269) $ (6,087) $ (416,509) $ (12,735) Net (loss)/income (a) See Note 11 for additional details.
Before and after tax amounts for comprehensive income (loss) components	The following table summarizes the before and after tax amounts for the various components of other comprehensive income/(loss) for the three-month periods ended July 4, 2021 and June 28, 2020: Three months ended July 4, 2021 Three months ended June 28, 2020 Before Tax Tax After Tax Before Tax Tax After Tax Foreign currency items: Net other comprehensive loss from foreign currency items $ 11,837 $ — $ 11,837 $ 33,454 $ — $ 33,454 Defined benefit pension items: Other comprehensive income/(loss) before 14,213 (3,441) 10,772 (1,410) 351 (1,059) Amounts reclassified from accumulated other comprehensive loss to net (loss) income (a) 554,063 (142,090) 411,973 7,290 (1,815) 5,475 Net other comprehensive income/(loss) from 568,276 (145,531) 422,745 5,880 (1,464) 4,416 Gains and losses on cash flow hedges: Other comprehensive income/(loss) before 5,674 (1,452) 4,222 1,612 (394) 1,218 Amounts reclassified from accumulated other (945) 241 (704) 809 (197) 612 Amounts reclassified from accumulated other (49) 13 (36) — — — Net other comprehensive income/(loss) from 4,680 (1,198) 3,482 2,421 (591) 1,830 Other comprehensive loss $ 584,793 $ (146,729) $ 438,064 $ 41,755 $ (2,055) $ 39,700 (a) See Note 11 for additional details. The following table summarizes the before and after tax amounts for the various components of other comprehensive income/(loss) for the six-month periods ended July 4, 2021 and June 28, 2020: Six months ended July 4, 2021 Six months ended June 28, 2020 Before Tax Tax After Tax Before Tax Tax After Tax Foreign currency items: Net other comprehensive (loss)/income from foreign currency items (a) $ (20,184) $ — $ (20,184) $ (52,540) (7,581) $ (60,121) Defined benefit pension items: Other comprehensive (loss)/income before 14,364 (3,476) 10,888 (1,146) 284 (862) Amounts reclassified from accumulated other comprehensive income/(loss) to net income (b) 560,964 (143,722) 417,242 14,774 (3,716) 11,058 Net other comprehensive income/(loss) from 575,328 (147,198) 428,130 13,628 (3,432) 10,196 Gains and losses on cash flow hedges: Other comprehensive (loss)/income before 7,012 (1,793) 5,219 (5,721) 1,319 (4,402) Amounts reclassified from accumulated other (986) 253 (733) 2,199 (522) 1,677 Amounts reclassified from accumulated other (62) 16 (46) — — — Net other comprehensive (loss)/income from 5,964 (1,524) 4,440 (3,522) 797 (2,725) Other comprehensive income/(loss): $ 561,108 $ (148,722) $ 412,386 $ (42,434) $ (10,216) $ (52,650) (a) Other comprehensive loss from foreign currency items for the six-month period ended June 28, 2020 includes the settlement gain and corresponding tax provision related to the termination of a net investment hedge. See Note 9 for more information. (b) See Note 11 for additional details.

Goodwill and Other Intangible_2

Goodwill and Other Intangible Assets (Tables)	6 Months Ended
	Jul. 04, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Changes in goodwill by segment	A summary of the changes in goodwill by segment for the six months ended July 4, 2021 is as follows: Consumer Industrial Paper Packaging All Other Total Goodwill at December 31, 2020 $ 592,310 $ 317,958 $ 478,987 $ 1,389,255 2021 Acquisitions — 917 — 917 Dispositions — — (53,039) (53,039) Foreign currency translation (2,065) (2,958) (222) (5,245) Measurement period adjustments 1,512 — — 1,512 Goodwill at July 4, 2021 $ 591,757 $ 315,917 $ 425,726 $ 1,333,400
Summary of other intangible assets	A summary of other intangible assets as of July 4, 2021 and December 31, 2020 is as follows: July 4, December 31, Other Intangible Assets, gross: Patents $ 29,320 $ 29,325 Customer lists 588,410 622,430 Trade names 32,118 32,088 Proprietary technology 22,868 22,813 Other 2,818 2,831 Total Other Intangible Assets, gross $ 675,534 $ 709,487 Accumulated Amortization: Patents $ (15,401) $ (14,511) Customer lists (329,056) (339,159) Trade names (13,221) (12,156) Proprietary technology (20,704) (19,833) Other (1,959) (1,894) Total Accumulated Amortization $ (380,341) $ (387,553) Other Intangible Assets, net $ 295,193 $ 321,934

Debt (Table)

Debt (Table)	6 Months Ended
	Jul. 04, 2021
Debt Disclosure [Abstract]
Schedule of Debt	Details of the Company's debt at July 4, 2021 and December 31, 2020 are as follows: July 4, December 31, Commercial paper $ 128,000 $ — 1.0% Euro loan due May 2021 — 183,662 9.2% debentures due August 2021 4,321 4,320 4.375% debentures due November 2021 249,934 249,741 3.125% debentures due May 2030 595,026 594,687 5.75% debentures due November 2040 536,165 599,279 Other foreign denominated debt 17,816 15,522 Finance lease obligations 51,627 37,943 Other notes 15,203 15,070 Total debt $ 1,598,092 $ 1,700,224 Less current portion and short-term notes 404,029 455,784 Long-term debt $ 1,194,063 $ 1,244,440
Schedule of Debt Repurchased	Upon expiration of the tender on May 25, 2021, the Company repurchased 10.53% of its outstanding 5.75% notes for a total cash cost of $81,961, as shown below: Principal Amount Tendered Premium and Other Amounts Paid Total 5.75% debentures due November 2040 $ 63,206 $ 18,755 $ 81,961

Financial Instruments and Der_2

Financial Instruments and Derivatives (Tables)	6 Months Ended
	Jul. 04, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Carrying amounts and fair values of financial instruments	July 4, 2021 December 31, 2020 Carrying Fair Carrying Fair Long-term debt, net of current portion $ 1,194,063 $ 1,508,920 $ 1,244,440 $ 1,538,132
Net positions of foreign contracts	The net positions of these contracts at July 4, 2021 were as follows (in thousands): Currency Action Quantity Colombian peso purchase 9,976,203 Mexican peso purchase 194,460 Polish zloty purchase 41,954 Czech koruna purchase 27,864 Euro purchase 11,433 Canadian dollar purchase 6,968 British pound purchase 3,295 Turkish lira purchase 1,245
Net positions of other derivatives contracts	The net currency positions of these contracts at July 4, 2021, were as follows (in thousands): Currency Action Quantity Indonesian rupiah purchase 25,660,982 Colombian peso purchase 24,649,532 Mexican peso purchase 352,286 Canadian dollar purchase 3,448
Location and fair values of derivative instruments	The following table sets forth the location and fair values of the Company’s derivative instruments at July 4, 2021 and December 31, 2020: Description Balance Sheet Location July 4, 2021 December 31, 2020 Derivatives designated as hedging instruments: Commodity Contracts Prepaid expenses $ 3,478 $ 867 Commodity Contracts Other assets $ 1,903 $ — Commodity Contracts Accrued expenses and other $ — $ (1,512) Commodity Contracts Other liabilities $ — $ (2) Foreign Exchange Contracts Prepaid expenses $ 1,020 $ 997 Foreign Exchange Contracts Accrued expenses and other $ (528) $ (395) Foreign Exchange Contracts Other liabilities $ (3) $ — Derivatives not designated as hedging instruments: Commodity Contracts Prepaid expenses $ — $ 484 Foreign Exchange Contracts Prepaid expenses $ 241 $ 140 Foreign Exchange Contracts Accrued expenses and other $ (69) $ (25)
Effect of derivative instruments on financial performance	The following tables set forth the effect of the Company’s derivative instruments on financial performance for the three months ended July 4, 2021 and June 28, 2020, excluding the gains on foreign currency cash flow hedges that were reclassified from accumulated other comprehensive income to the carrying value of the capitalized expenditures: Description Amount of Gain or Location of Gain Amount of Gain or Derivatives in Cash Flow Hedging Relationships: Three months ended July 4, 2021 Foreign Exchange Contracts $ 751 Net sales $ 1,489 Cost of sales $ (1,190) Commodity Contracts $ 4,847 Cost of sales $ 646 Three months ended June 28, 2020 Foreign Exchange Contracts $ (97) Net sales $ (3,384) Cost of sales $ 2,050 Commodity Contracts $ 1,709 Cost of sales $ 525 Description Gain or (Loss) Location of Gain or (Loss) Recognized in Derivatives not Designated as Hedging Instruments: Three months ended July 4, 2021 Commodity Contracts $ 56 Cost of sales Foreign Exchange Contracts $ 220 Selling, general and administrative Three months ended June 28, 2020 Commodity Contracts $ 184 Cost of sales Foreign Exchange Contracts $ 866 Selling, general and administrative Three months ended July 4, 2021 Three months ended June 28, 2020 Description Revenue Cost of Revenue Cost of Total amount of income and expense line items presented in the Condensed Consolidated Statements of Income $ 1,489 $ (544) $ (3,384) $ 2,575 The effects of cash flow hedging: Gain or (loss) on cash flow hedging relationships: Foreign exchange contracts: Amount of gain or (loss) reclassified from accumulated other comprehensive income into net income $ 1,489 $ (1,190) $ (3,384) $ 2,050 Commodity contracts: Amount of gain reclassified from accumulated other comprehensive income into net income $ — $ 646 $ — $ 525 The following tables set forth the effect of the Company’s derivative instruments on financial performance for the six months ended July 4, 2021 and June 28, 2020, excluding the gains on foreign currency cash flow hedges that were reclassified from accumulated other comprehensive income to the carrying value of the capitalized expenditures: Description Amount of Gain or Location of Gain Amount of Gain or Derivatives in Cash Flow Hedging Relationships: Six months ended July 4, 2021 Foreign Exchange Contracts $ 563 Net sales $ 1,829 Cost of sales $ (1,418) Commodity Contracts $ 6,601 Cost of sales $ 575 Six months ended June 28, 2020 Foreign Exchange Contracts $ (5,075) Net sales $ (4,522) Cost of sales $ 2,877 Commodity Contracts $ (646) Cost of sales $ (554) Description Gain or (Loss) Location of Gain or (Loss) Recognized in Derivatives not Designated as Hedging Instruments: Six months ended July 4, 2021 Commodity Contracts $ 434 Cost of sales Foreign Exchange Contracts $ (405) Selling, general and administrative Six months ended June 28, 2020 Commodity Contracts $ 184 Cost of sales Foreign Exchange Contracts $ (4,051) Selling, general and administrative Six months ended July 4, 2021 Six months ended June 28, 2020 Description Revenue Cost of Revenue Cost of Total amount of income and expense line items presented in the Condensed Consolidated Statements of Income $ 1,829 $ (843) $ (4,522) $ 2,324 The effects of cash flow hedging: Gain or (loss) on cash flow hedging relationships: Foreign exchange contracts: Amount of gain or (loss) reclassified from accumulated other comprehensive income into net income $ 1,829 $ (1,418) $ (4,522) $ 2,877 Commodity contracts: Amount of gain or (loss) reclassified from accumulated other comprehensive income into net income $ — $ 575 $ — $ (554)

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	6 Months Ended
	Jul. 04, 2021
Fair Value Disclosures [Abstract]
Assets and liabilities measured on recurring basis	The following table sets forth information regarding the Company’s financial assets and financial liabilities, excluding retirement and postretirement plan assets, measured at fair value on a recurring basis: Description July 4, 2021 Assets measured Level 1 Level 2 Level 3 Hedge derivatives, net: Commodity contracts $ 5,381 $ — $ — $ 5,381 $ — Foreign exchange contracts $ 489 $ — $ — $ 489 $ — Non-hedge derivatives, net: Foreign exchange contracts $ 172 $ — $ — $ 172 $ — Description December 31, 2020 Assets measured Level 1 Level 2 Level 3 Hedge derivatives, net: Commodity contracts $ (647) $ — $ — $ (647) $ — Foreign exchange contracts $ 602 $ — $ — $ 602 $ — Non-hedge derivatives, net: Commodity contracts $ 484 $ — $ — $ 484 $ — Foreign exchange contracts $ 115 $ — $ — $ 115 $ —

Employee Benefit Plans (Tables)

Employee Benefit Plans (Tables)	6 Months Ended
	Jul. 04, 2021
Retirement Benefits [Abstract]
Components of net periodic benefit cost	The components of net periodic benefit cost include the following: Three Months Ended Six Months Ended July 4, 2021 June 28, 2020 July 4, 2021 June 28, 2020 Retirement Plans Service cost $ 1,020 $ 1,003 $ 1,981 $ 2,085 Interest cost 9,657 12,549 19,764 25,230 Expected return on plan assets (8,650) (12,227) (18,311) (24,807) Amortization of prior service cost 235 247 461 497 Amortization of net actuarial loss 6,378 7,258 13,249 14,134 Effect of curtailment loss — 31 — 31 Effect of settlement loss 547,631 38 547,631 661 Net periodic benefit cost $ 556,271 $ 8,899 $ 564,775 $ 17,831 Retiree Health and Life Insurance Plans Service cost $ 95 $ 93 $ 189 $ 176 Interest cost 50 81 100 165 Expected return on plan assets (111) (93) (224) (183) Amortization of prior service credit — (69) — (137) Amortization of net actuarial gain (181) (215) (377) (412) Net periodic benefit income $ (147) $ (203) $ (312) $ (391)

Leases (Tables)

Leases (Tables)	6 Months Ended
	Jul. 04, 2021
Leases [Abstract]
Balance sheet location and values of Company's lease assets and lease liabilities	The following table sets forth the balance sheet location and values of the Company’s lease assets and lease liabilities at July 4, 2021 and December 31, 2020: Classification Balance Sheet Location July 4, 2021 December 31, 2020 Lease Assets Operating lease assets Right of Use Asset - Operating Leases $ 271,241 $ 296,020 Finance lease assets Other Assets 47,667 36,267 Total lease assets $ 318,908 $ 332,287 Lease Liabilities Current operating lease liabilities Accrued expenses and other $ 46,062 $ 52,138 Current finance lease liabilities Notes payable and current portion of debt 6,075 4,663 Total current lease liabilities $ 52,137 $ 56,801 Noncurrent operating lease liabilities Noncurrent Operating Lease Liabilities $ 237,447 $ 262,048 Noncurrent finance lease liabilities Long-term Debt, Net of Current Portion 45,552 33,280 Total noncurrent lease liabilities $ 282,999 $ 295,328 Total lease liabilities $ 335,136 $ 352,129
Components of Company's total lease costs and other lease related information	The following table sets forth the components of the Company's total lease cost for the three- and six- month periods ended July 4, 2021 and June 28, 2020: Three Months Ended Six Months Ended Lease Cost July 4, 2021 June 28, 2020 July 4, 2021 June 28, 2020 Operating lease cost (a) $ 11,902 $ 14,360 $ 25,097 $ 28,711 Finance lease cost: Amortization of lease asset (a) (b) 1,332 2,391 2,657 4,938 Interest on lease liabilities (c) 337 238 630 463 Variable lease cost (a) (d) 6,689 8,576 12,773 21,861 Total lease cost $ 20,260 $ 25,565 $ 41,157 $ 55,973 (a) Production-related and administrative amounts are included in cost of sales and selling, general and administrative expenses, respectively. (b) Included in depreciation and amortization. (c) Included in interest expense. (d) Also includes short term lease costs, which are deemed immaterial .
Schedule of Weighted Average Remaining Lease Terms, Discounts Rates and Other Lease Information	The following table sets forth certain lease-related information for the six months ended July 4, 2021 and June 28, 2020: Six Months Ended July 4, 2021 June 28, 2020 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows used by operating leases $ 26,620 $ 29,309 Operating cash flows used by finance leases $ 630 $ 463 Financing cash flows used by finance leases $ 2,156 $ 5,389 Noncash investing and financing activities: Leased assets obtained in exchange for new operating lease liabilities $ 6,705 $ 25,896 Leased assets obtained in exchange for new finance lease liabilities $ 5,879 $ 8,237 Modification to leased assets for increase in operating lease liabilities $ 6,845 $ 3,804 Modification to leased assets for increase in finance lease liabilities $ 9,586 $ 11,007 Termination reclasses to (decrease) operating lease assets $ (4,319) $ (2,188) Termination reclasses to (decrease) operating lease liabilities $ (4,336) $ (2,353) Termination reclasses to (decrease) finance lease assets $ (21) $ (19,994) Termination reclasses to (decrease) finance lease liabilities $ (23) $ (20,121)

Revenue Recognition (Tables)

Revenue Recognition (Tables)	6 Months Ended
	Jul. 04, 2021
Revenue from Contract with Customer [Abstract]
Receivables, contracts assets and liabilities from contracts with customers	The following tables set forth the effects of contract assets and liabilities from contracts with customers. Contract assets and liabilities are reported in "Other receivables" and "Accrued expenses and other," respectively, on the Company's Condensed Consolidated Balance Sheets. July 4, 2021 December 31, 2020 Contract Assets $ 49,666 $ 48,390 Contract Liabilities $ (17,243) $ (16,687) Significant changes in the contract assets and liabilities balances during the six months ended July 4, 2021 and the year ended December 31, 2020 were as follows: July 4, 2021 December 31, 2020 Contract Contract Contract Contract Beginning Balance $ 48,390 $ (16,687) $ 56,364 $ (17,047) Revenue deferred or rebates accrued — (20,817) — (32,512) Recognized as revenue 3,347 9,189 Rebates paid to customers — 16,914 — 23,683 Increases due to rights to consideration for customer specific goods produced, but not billed during the period 49,666 — 48,390 — Transferred to receivables from contract assets recognized at the beginning of the period (48,390) — (56,364) — Ending Balance $ 49,666 $ (17,243) $ 48,390 $ (16,687)
Disaggregation of revenue	The following tables set forth information about revenue disaggregated by primary geographic regions for the three-month periods ended July 4, 2021 and June 28, 2020. The tables also include a reconciliation of disaggregated revenue with reportable segments. Three months ended July 4, 2021 Consumer Packaging Industrial Paper Packaging All Other Total Primary Geographical Markets: United States $ 413,576 $ 346,367 $ 142,236 $ 902,179 Europe 110,248 104,238 21,930 236,416 Canada 30,193 23,985 — 54,178 Asia 18,375 78,189 279 96,843 Other 25,411 55,753 11,974 93,138 Total $ 597,803 $ 608,532 $ 176,419 $ 1,382,754 Three months ended June 28, 2020 Consumer Packaging Industrial Paper Packaging All Other Total Primary Geographical Markets: United States $ 419,144 $ 273,325 $ 136,725 $ 829,194 Europe 90,329 75,279 76,909 242,517 Canada 26,732 20,996 — 47,728 Asia 17,744 52,799 186 70,729 Other 19,217 32,627 3,473 55,317 Total $ 573,166 $ 455,026 $ 217,293 $ 1,245,485 The following tables set forth information about revenue disaggregated by primary geographic regions for the six-month periods ended July 4, 2021 and June 28, 2020. The tables also include a reconciliation of disaggregated revenue with reportable segments. Six months ended July 4, 2021 Consumer Industrial Paper Packaging All Other Total Primary Geographical Markets: United States $ 811,373 $ 671,589 $ 316,967 $ 1,799,929 Europe 225,428 200,922 43,339 469,689 Canada 56,336 45,031 — 101,367 Asia 39,528 151,561 520 191,609 Other 47,891 104,826 20,747 173,464 Total $ 1,180,556 $ 1,173,929 $ 381,573 $ 2,736,058 Six months ended June 28, 2020 Consumer Packaging Industrial Paper Packaging All Other Total Primary Geographical Markets: United States $ 806,409 $ 569,545 $ 303,705 $ 1,679,659 Europe 180,152 158,819 161,040 500,011 Canada 52,577 46,573 — 99,150 Asia 34,282 108,583 388 143,253 Other 40,315 73,997 12,396 126,708 Total $ 1,113,735 $ 957,517 $ 477,529 $ 2,548,781

Segment Reporting (Tables)

Segment Reporting (Tables)	6 Months Ended
	Jul. 04, 2021
Segment Reporting [Abstract]
Segment financial information	SEGMENT FINANCIAL INFORMATION Three Months Ended Six Months Ended July 4, 2021 June 28, 2020 July 4, 2021 June 28, 2020 Net sales: Consumer Packaging $ 597,803 $ 573,166 $ 1,180,556 $ 1,113,735 Industrial Paper Packaging 608,532 455,026 1,173,929 957,517 All Other 176,419 217,293 381,573 477,529 Consolidated $ 1,382,754 $ 1,245,485 $ 2,736,058 $ 2,548,781 Intersegment sales: Consumer Packaging $ 1,199 $ 1,154 $ 2,852 $ 2,260 Industrial Paper Packaging 27,700 24,508 54,596 49,010 All Other 2,140 1,474 5,165 4,156 Consolidated $ 31,039 $ 27,136 $ 62,613 $ 55,426 Operating profit: Segment operating profit: Consumer Packaging $ 59,813 $ 84,449 $ 135,423 $ 148,205 Industrial Paper Packaging 57,885 33,235 108,071 92,836 All Other 10,912 8,872 24,783 29,427 Restructuring/Asset impairment income/(charges) 1,445 (22,885) (5,401) (35,484) Other non-base income/(charges), net 5,236 56 (7,276) (1,154) Consolidated $ 135,291 $ 103,727 $ 255,600 $ 233,830

Basis of Interim Presentation (

Basis of Interim Presentation (Details)	6 Months Ended
	Jul. 04, 2021segment
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of reportable segments (segment)	2

Acquisitions and Divestitures -

Acquisitions and Divestitures - Additional Information (Details)	Apr. 05, 2021USD ($)	Mar. 08, 2021USD ($)	Nov. 30, 2020USD ($)	Jul. 04, 2021USD ($)	Jun. 28, 2020USD ($)	Jul. 04, 2021USD ($)	Jun. 28, 2020USD ($)	Apr. 04, 2021USD ($)employeefacility
Business Acquisition [Line Items]
Measurement period adjustments						$ 1,512,000
Net cash proceeds						86,071,000	$ 0
Loss on disposition of business				$ 0	$ 0	(5,516,000)	0
Acquisition and divestiture-related costs				1,462,000	$ 357,000	11,488,000	$ 1,528,000
Sold | Display and Packaging Reporting Unit
Business Acquisition [Line Items]
Consideration for disposal of business held for sale			$ 120,000,000					$ 80,000,000
Net cash proceeds	$ 79,704,000
Approximate number of employees (employee) | employee								450
Number of manufacturing and fulfillment facilities | facility								8
Number of sales and design centers | facility								4
Loss on disposition of business	$ (5,516,000)
Sold | Sonoco Poland Packaging Services Sp. z.o.o.
Business Acquisition [Line Items]
Net cash proceeds			105,913,000	6,366,000
Funding of escrow funds			4,600,000	600,000		600,000
Release of escrow funds				4,000,000
Working capital settlement				2,366,000
Escrow balance			$ 4,600,000	600,000		600,000
TuboTec
Business Acquisition [Line Items]
Cash consideration paid		$ 841,000
Can Packaging
Business Acquisition [Line Items]
Additional cash payment						1,512,000
Goodwill expected to be deductible for income tax purposes				$ 0		$ 0

Acquisitions and Divestitures_2

Acquisitions and Divestitures - Divestitures (Details) - Sold - Display and Packaging Reporting Unit $ in Thousands	Apr. 04, 2021USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Trade accounts receivable	$ 26,342
Inventories	8,434
Property, plant and equipment, net	9,551
Right of use asset - operating leases	11,627
Goodwill	53,039
Trade accounts payable	(10,735)
Accrued expenses	(1,411)
Operating lease liabilities	(12,343)
Other net tangible assets	716
Net assets disposed of	$ 85,220

Shareholders' Equity - Earnings

Shareholders' Equity - Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	Jun. 10, 2021	Jul. 04, 2021	Jun. 28, 2020	Jul. 04, 2021	Jun. 28, 2020
Numerator:
Net (loss)/income attributable to Sonoco		$ (334,070)	$ 55,211	$ (261,774)	$ 135,656
Denominator:
Basic (in shares)		100,082	100,971	100,571	100,915
Dilutive effect of stock-based compensation (in shares)		0	138	0	194
Diluted (in shares)		100,082	101,109	100,571	101,109
Net (loss)/income attributable to Sonoco per common share:
Basic (in usd per share)		$ (3.34)	$ 0.55	$ (2.60)	$ 1.34
Diluted (in usd per share)		(3.34)	0.55	(2.60)	1.34
Cash dividends (in usd per share)	$ 0.45	$ 0.45	$ 0.43	$ 0.90	$ 0.86

Shareholders' Equity - Antidilu

Shareholders' Equity - Antidilutive Securities (Details) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jul. 04, 2021	Jun. 28, 2020	Jul. 04, 2021	Jun. 28, 2020
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive stock appreciation rights (in shares)	486		469
SARs
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive stock appreciation rights (in shares)	0	1,191	214	890

Shareholders' Equity - Addition

Shareholders' Equity - Additional Information (Details) $ / shares in Units, $ in Thousands	Sep. 10, 2021$ / shares	Jul. 26, 2021USD ($)$ / sharesshares	Jul. 21, 2021USD ($)position$ / sharesshares	Jun. 10, 2021$ / shares	May 10, 2021USD ($)$ / sharesshares	May 06, 2021USD ($)shares	Apr. 21, 2021$ / shares	Jul. 04, 2021$ / sharesshares	Jun. 28, 2020$ / shares	Jul. 04, 2021USD ($)$ / sharesshares	Jun. 28, 2020USD ($)$ / sharesshares	Apr. 20, 2021shares
Class of Stock [Line Items]
Number of shares authorized for repurchase (in shares) | shares												350,000,000
Up-front payment to repurchase shares | $						$ 3,615				$ 159,571	$ 3,950
Number of shares repurchased (in shares) | shares						54,000
Number of shares available for repurchase (in shares) | shares								196,385,000		196,385,000
Dividend declared and payable (in usd per share) | $ / shares							$ 0.45
Dividends paid (in usd per share) | $ / shares				$ 0.45				$ 0.45	$ 0.43	$ 0.90	$ 0.86
Accelerated Share Repurchase Program
Class of Stock [Line Items]
Up-front payment to repurchase shares | $					$ 150,000
Number of shares repurchased (in shares) | shares					1,751,000
Percentage of expected shares to be repurchased (percent)					80.00%
Average price (in usd per share) | $ / shares					$ 68.50
Subsequent Event
Class of Stock [Line Items]
Dividend declared and payable (in usd per share) | $ / shares			$ 0.45
Dividends paid (in usd per share) | $ / shares	$ 0.45
Subsequent Event | Accelerated Share Repurchase Program
Class of Stock [Line Items]
Number of shares repurchased (in shares) | shares		337,000	168,000
Number of tranches | position			2
Settlement of notional transactional value | $		$ 100,000	$ 50,000
Effective settlement price (in usd per share) | $ / shares		$ 66.45	$ 66.52
Tax Withholding Obligations
Class of Stock [Line Items]
Number of shares repurchased (in shares) | shares										98,000	66,000
Cost of shares repurchased | $										$ 5,956	$ 3,950

Restructuring and Asset Impai_3

Restructuring and Asset Impairment - Restructuring and Restructuring-related Asset Impairment Expenses by Type Incurred and by Reportable Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 04, 2021	Jun. 28, 2020	Jul. 04, 2021	Jun. 28, 2020
Restructuring Cost and Reserve [Line Items]
Restructuring and restructuring-related asset impairment (income)/charges	$ (1,853)	$ 22,885	$ 844	$ 35,484
Other asset impairments	408	0	4,557	0
Restructuring/Asset Impairment (Income)/Charges	(1,445)	22,885	5,401	35,484
Consumer Packaging
Restructuring Cost and Reserve [Line Items]
Other asset impairments			2,158
All Other
Restructuring Cost and Reserve [Line Items]
Other asset impairments			2,399
Operating Segments | Consumer Packaging
Restructuring Cost and Reserve [Line Items]
Restructuring and restructuring-related asset impairment (income)/charges	173	2,007	1,258	4,209
Operating Segments | Industrial Paper Packaging
Restructuring Cost and Reserve [Line Items]
Restructuring and restructuring-related asset impairment (income)/charges	(4,372)	17,689	(2,939)	23,199
Operating Segments | All Other
Restructuring Cost and Reserve [Line Items]
Restructuring and restructuring-related asset impairment (income)/charges	2,355	2,606	2,520	5,965
Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring and restructuring-related asset impairment (income)/charges	(9)	583	5	2,111
Severance and Termination Benefits
Restructuring Cost and Reserve [Line Items]
Restructuring and restructuring-related asset impairment (income)/charges	2,438	15,159	3,866	25,259
Asset Impairment/ Disposal of Assets
Restructuring Cost and Reserve [Line Items]
Restructuring and restructuring-related asset impairment (income)/charges	(5,621)	6,073	(6,485)	8,759
Other Costs
Restructuring Cost and Reserve [Line Items]
Restructuring and restructuring-related asset impairment (income)/charges	$ 1,330	$ 1,653	$ 3,463	$ 1,466

Restructuring and Asset Impai_4

Restructuring and Asset Impairment - Restructuring Accrual Activity (Details) $ in Thousands	6 Months Ended
	Jul. 04, 2021USD ($)
Restructuring Reserve [Roll Forward]
Liability at December 31, 2020	$ 16,466
2021 charges	844
Cash receipts/(payments)	(4,601)
Asset write downs/disposals	(3,441)
Foreign currency translation	(264)
Liability at July 4, 2021	9,004
Severance and Termination Benefits
Restructuring Reserve [Roll Forward]
Liability at December 31, 2020	15,955
2021 charges	3,866
Cash receipts/(payments)	(11,160)
Asset write downs/disposals	0
Foreign currency translation	(265)
Liability at July 4, 2021	8,396
Asset Impairment/ Disposal of Assets
Restructuring Reserve [Roll Forward]
Liability at December 31, 2020	0
2021 charges	(6,485)
Cash receipts/(payments)	10,279
Asset write downs/disposals	(3,794)
Foreign currency translation	0
Liability at July 4, 2021	0
Other Costs
Restructuring Reserve [Roll Forward]
Liability at December 31, 2020	511
2021 charges	3,463
Cash receipts/(payments)	(3,720)
Asset write downs/disposals	353
Foreign currency translation	1
Liability at July 4, 2021	$ 608

Restructuring and Asset Impai_5

Restructuring and Asset Impairment - Additional Information (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 04, 2021USD ($)position	Jun. 28, 2020USD ($)	Jul. 04, 2021USD ($)position	Jun. 28, 2020USD ($)
Restructuring Cost and Reserve [Line Items]
Future additional charges expected to be recognized	$ 2,000		$ 2,000
Other asset impairments	$ 408	$ 0	4,557	$ 0
Consumer Packaging
Restructuring Cost and Reserve [Line Items]
Other asset impairments			2,158
All Other
Restructuring Cost and Reserve [Line Items]
Other asset impairments			$ 2,399
Organizational effectiveness efforts
Restructuring Cost and Reserve [Line Items]
Number of eliminated positions (position) | position	450		450

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Loss - Components of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 04, 2021	Jun. 28, 2020	Jul. 04, 2021		Jun. 28, 2020
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance	$ 1,912,798	$ 1,755,441	$ 1,910,528	[1]	$ 1,815,705
Other comprehensive (loss)/income	438,823	39,110	412,625		(54,877)
Ending Balance	1,822,433	1,807,704	1,822,433		1,807,704
Foreign Currency Items
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance			(194,024)		(241,994)
Other comprehensive (loss)/income before reclassifications			(20,184)		(60,121)
Amounts reclassified from accumulated other comprehensive loss net of tax			0
Other comprehensive (loss)/income			(20,184)		(60,121)
Ending Balance	(214,208)	(302,115)	(214,208)		(302,115)
Foreign Currency Items | Fixed Assets
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Amounts reclassified from accumulated other comprehensive loss net of tax			0
Foreign Currency Items | Net Income
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Amounts reclassified from accumulated other comprehensive loss net of tax					0
Defined Benefit Pension Items
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance			(562,747)		(574,413)
Other comprehensive (loss)/income before reclassifications			10,888		(862)
Amounts reclassified from accumulated other comprehensive loss net of tax			417,242
Other comprehensive (loss)/income			428,130		10,196
Ending Balance	(134,617)	(564,217)	(134,617)		(564,217)
Defined Benefit Pension Items | Fixed Assets
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Amounts reclassified from accumulated other comprehensive loss net of tax			0
Defined Benefit Pension Items | Net Income
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Amounts reclassified from accumulated other comprehensive loss net of tax					11,058
Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance			(71)		(396)
Other comprehensive (loss)/income before reclassifications			5,219		(4,402)
Amounts reclassified from accumulated other comprehensive loss net of tax			(733)
Other comprehensive (loss)/income			4,440		(2,725)
Ending Balance	4,369	(3,121)	4,369		(3,121)
Cash Flow Hedges | Fixed Assets
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Amounts reclassified from accumulated other comprehensive loss net of tax			(46)
Cash Flow Hedges | Net Income
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Amounts reclassified from accumulated other comprehensive loss net of tax					1,677
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance	(782,520)	(909,153)	(756,842)		(816,803)
Other comprehensive (loss)/income before reclassifications			(4,077)		(65,385)
Amounts reclassified from accumulated other comprehensive loss net of tax			416,509
Other comprehensive (loss)/income			412,386		(52,650)
Ending Balance	$ (344,456)	$ (869,453)	(344,456)		(869,453)
Accumulated Other Comprehensive Loss | Fixed Assets
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Amounts reclassified from accumulated other comprehensive loss net of tax			$ (46)
Accumulated Other Comprehensive Loss | Net Income
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Amounts reclassified from accumulated other comprehensive loss net of tax					$ 12,735
[1]	The year-end condensed consolidated balance sheet data was derived from audited financial statements, but does not include all disclosures required by accounting principles generally accepted in the United States of America.

Accumulated Other Comprehensi_4

Accumulated Other Comprehensive Loss - Effects on Net Income of Significant Amounts Reclassified from Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jul. 04, 2021	Apr. 04, 2021	Jun. 28, 2020	Mar. 29, 2020	Jul. 04, 2021	Jun. 28, 2020
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net sales	$ 1,382,754		$ 1,245,485		$ 2,736,058	$ 2,548,781
Cost of sales	(1,120,101)		(997,502)		(2,195,504)	(2,034,208)
(Loss)/Income before income taxes	(454,696)		77,442		(359,402)	183,921
Provision for income taxes	118,151		(23,230)		94,106	(49,986)
Net (loss)/income	(334,239)	$ 72,293	54,990	$ 80,236	(261,946)	135,226
Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net sales	1,489		(3,384)		1,829	(4,522)
Cost of sales	(544)		2,575		(843)	2,324
Net (loss)/income	(411,269)		(6,087)		(416,509)	(12,735)
Reclassification out of Accumulated Other Comprehensive Income | Cash Flow Hedges
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
(Loss)/Income before income taxes	945		(809)		986	(2,199)
Provision for income taxes	(241)		197		(253)	522
Net (loss)/income	704		(612)		733	(1,677)
Reclassification out of Accumulated Other Comprehensive Income | Defined Benefit Pension Items
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
(Loss)/Income before income taxes	(554,063)		(7,290)		(560,964)	(14,774)
Provision for income taxes	142,090		1,815		143,722	3,716
Net (loss)/income	(411,973)		(5,475)		(417,242)	(11,058)
Reclassification out of Accumulated Other Comprehensive Income | Effect of curtailment loss
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Non-operating pension costs	0		(31)		0	(31)
Reclassification out of Accumulated Other Comprehensive Income | Effect of settlement loss
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Non-operating pension costs	(547,631)		(38)		(547,631)	(661)
Reclassification out of Accumulated Other Comprehensive Income | Amortization of defined benefit pension items
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Non-operating pension costs	(6,432)		(7,221)		(13,333)	(14,082)
Reclassification out of Accumulated Other Comprehensive Income | Foreign exchange contracts | Cash Flow Hedges
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net sales	1,489		(3,384)		1,829	(4,522)
Cost of sales	(1,190)		2,050		(1,418)	2,877
Reclassification out of Accumulated Other Comprehensive Income | Commodity contracts | Cash Flow Hedges
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net sales	0		0		0	0
Cost of sales	$ 646		$ 525		$ 575	$ (554)

Accumulated Other Comprehensi_5

Accumulated Other Comprehensive Loss - Before and After Tax Amounts for Comprehensive Income (Loss) Components (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jul. 04, 2021	Apr. 04, 2021	Jun. 28, 2020	Mar. 29, 2020	Jul. 04, 2021	Jun. 28, 2020
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss)	$ 438,823	$ (26,198)	$ 39,110	$ (93,987)
Foreign Currency Items
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income/(loss) before tax	11,837		33,454		$ (20,184)	$ (52,540)
Other comprehensive income/(loss), tax	0		0		0	(7,581)
Other comprehensive income (loss)	11,837		33,454		(20,184)	(60,121)
Defined benefit pension items
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive (loss)/income before reclassifications before tax	14,213		(1,410)		14,364	(1,146)
Other comprehensive (loss)/income before reclassifications, tax	(3,441)		351		(3,476)	284
Other comprehensive (loss)/income before reclassifications, net of tax	10,772		(1,059)		10,888	(862)
Amounts reclassified from accumulated other comprehensive income/(loss) before tax					560,964	14,774
Amounts reclassified from accumulated other comprehensive income/(loss), tax					(143,722)	(3,716)
Amounts reclassified from accumulated other comprehensive income/(loss) net of tax					417,242	11,058
Other comprehensive income/(loss) before tax	568,276		5,880		575,328	13,628
Other comprehensive income/(loss), tax	(145,531)		(1,464)		(147,198)	(3,432)
Other comprehensive income (loss)	422,745		4,416		428,130	10,196
Defined benefit pension items | Net Income
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from accumulated other comprehensive income/(loss) before tax	554,063		7,290
Amounts reclassified from accumulated other comprehensive income/(loss), tax	(142,090)		(1,815)
Amounts reclassified from accumulated other comprehensive income/(loss) net of tax	411,973		5,475
Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive (loss)/income before reclassifications before tax	5,674		1,612		7,012	(5,721)
Other comprehensive (loss)/income before reclassifications, tax	(1,452)		(394)		(1,793)	1,319
Other comprehensive (loss)/income before reclassifications, net of tax	4,222		1,218		5,219	(4,402)
Other comprehensive income/(loss) before tax	4,680		2,421		5,964	(3,522)
Other comprehensive income/(loss), tax	(1,198)		(591)		(1,524)	797
Other comprehensive income (loss)	3,482		1,830		4,440	(2,725)
Cash Flow Hedges | Fixed Assets
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from accumulated other comprehensive income/(loss) before tax	(49)		0		(62)	0
Amounts reclassified from accumulated other comprehensive income/(loss), tax	13		0		16	0
Amounts reclassified from accumulated other comprehensive income/(loss) net of tax	(36)		0		(46)	0
Cash Flow Hedges | Net Income
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from accumulated other comprehensive income/(loss) before tax	(945)		809		(986)	2,199
Amounts reclassified from accumulated other comprehensive income/(loss), tax	241		(197)		253	(522)
Amounts reclassified from accumulated other comprehensive income/(loss) net of tax	(704)		612		(733)	1,677
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income/(loss) before tax	584,793		41,755		561,108	(42,434)
Other comprehensive income/(loss), tax	(146,729)		(2,055)		(148,722)	(10,216)
Other comprehensive income (loss)	$ 438,064	$ (25,678)	$ 39,700	$ (92,350)	$ 412,386	$ (52,650)

Goodwill and Other Intangible_3

Goodwill and Other Intangible Assets - Changes in Goodwill by Segment (Details) $ in Thousands	6 Months Ended
	Jul. 04, 2021USD ($)
Goodwill [Roll Forward]
Goodwill at December 31, 2020	$ 1,389,255	[1]
2021 Acquisitions	917
Dispositions	(53,039)
Foreign currency translation	(5,245)
Measurement period adjustments	1,512
Goodwill at July 4, 2021	1,333,400
Consumer Packaging
Goodwill [Roll Forward]
Goodwill at December 31, 2020	592,310
2021 Acquisitions	0
Dispositions	0
Foreign currency translation	(2,065)
Measurement period adjustments	1,512
Goodwill at July 4, 2021	591,757
Industrial Paper Packaging
Goodwill [Roll Forward]
Goodwill at December 31, 2020	317,958
2021 Acquisitions	917
Dispositions	0
Foreign currency translation	(2,958)
Measurement period adjustments	0
Goodwill at July 4, 2021	315,917
All Other
Goodwill [Roll Forward]
Goodwill at December 31, 2020	478,987
2021 Acquisitions	0
Dispositions	(53,039)
Foreign currency translation	(222)
Measurement period adjustments	0
Goodwill at July 4, 2021	$ 425,726
[1]	The year-end condensed consolidated balance sheet data was derived from audited financial statements, but does not include all disclosures required by accounting principles generally accepted in the United States of America.

Goodwill and Other Intangible_4

Goodwill and Other Intangible Assets - Additional Information (Details)	3 Months Ended			6 Months Ended
	Jul. 04, 2021USD ($)	Sep. 27, 2020USD ($)	Jun. 28, 2020USD ($)	Jul. 04, 2021USD ($)reporting_unit	Jun. 28, 2020USD ($)	Jan. 01, 2021	Dec. 31, 2020USD ($)	[1]
Goodwill [Line Items]
Measurement period adjustments				$ 1,512,000
Goodwill, impairment loss		$ 0
Number of reporting units | reporting_unit				3
Goodwill	$ 1,333,400,000			$ 1,333,400,000			$ 1,389,255,000
Indefinite-lived intangible assets	0			0
Aggregate amortization expense	12,111,000		$ 13,359,000	24,860,000	$ 26,631,000
Amortization expense on other intangible assets in 2021	45,700,000			45,700,000
Amortization expense on other intangible assets in 2022	41,100,000			41,100,000
Amortization expense on other intangible assets in 2023	34,100,000			34,100,000
Amortization expense on other intangible assets in 2024	24,700,000			24,700,000
Amortization expense on other intangible assets in 2025	22,100,000			$ 22,100,000
Other | Minimum
Goodwill [Line Items]
Useful lives of intangible asset				3 years
Other | Maximum
Goodwill [Line Items]
Useful lives of intangible asset				40 years
Conitex Reporting Unit
Goodwill [Line Items]
Goodwill	$ 33,189,000			$ 33,189,000
Excess of fair value of reporting unit over carrying value (percent)	6.90%			6.90%
Projected decrease in operating profit for estimated fair value to fall below carrying value (percent)		6.20%
Conitex Reporting Unit | Discount Rate
Goodwill [Line Items]
Discount rate (percent)		10.80%
Change necessary in order for estimated fair value to fall below carrying value (percent)		12.20%
Retail Packaging
Goodwill [Line Items]
Goodwill	$ 70,139,000			$ 70,139,000
Excess of fair value of reporting unit over carrying value (percent)	17.30%			17.30%
Projected decrease in operating profit for estimated fair value to fall below carrying value (percent)						8.00%
Retail Packaging | Discount Rate
Goodwill [Line Items]
Discount rate (percent)						7.70%
Change necessary in order for estimated fair value to fall below carrying value (percent)						10.60%
Plastics - Healthcare
Goodwill [Line Items]
Goodwill	$ 65,733,000			$ 65,733,000
Excess of fair value of reporting unit over carrying value (percent)	11.70%			11.70%
Projected decrease in operating profit for estimated fair value to fall below carrying value (percent)						5.60%
Plastics - Healthcare | Discount Rate
Goodwill [Line Items]
Discount rate (percent)						7.90%
Change necessary in order for estimated fair value to fall below carrying value (percent)						9.10%
[1]	The year-end condensed consolidated balance sheet data was derived from audited financial statements, but does not include all disclosures required by accounting principles generally accepted in the United States of America.

Goodwill and Other Intangible_5

Goodwill and Other Intangible Assets - Summary of Other Intangible Assets (Details) - USD ($) $ in Thousands	Jul. 04, 2021	Dec. 31, 2020
Other Intangible Assets, gross:
Total Other Intangible Assets, gross	$ 675,534	$ 709,487
Total Accumulated Amortization	(380,341)	(387,553)
Other Intangible Assets, net	295,193	321,934	[1]
Patents
Other Intangible Assets, gross:
Total Other Intangible Assets, gross	29,320	29,325
Total Accumulated Amortization	(15,401)	(14,511)
Customer lists
Other Intangible Assets, gross:
Total Other Intangible Assets, gross	588,410	622,430
Total Accumulated Amortization	(329,056)	(339,159)
Trade names
Other Intangible Assets, gross:
Total Other Intangible Assets, gross	32,118	32,088
Total Accumulated Amortization	(13,221)	(12,156)
Proprietary technology
Other Intangible Assets, gross:
Total Other Intangible Assets, gross	22,868	22,813
Total Accumulated Amortization	(20,704)	(19,833)
Other
Other Intangible Assets, gross:
Total Other Intangible Assets, gross	2,818	2,831
Total Accumulated Amortization	$ (1,959)	$ (1,894)
[1]	The year-end condensed consolidated balance sheet data was derived from audited financial statements, but does not include all disclosures required by accounting principles generally accepted in the United States of America.

Debt - Schedule of Debt (Detail

Debt - Schedule of Debt (Details) - USD ($) $ in Thousands	Jul. 04, 2021	May 25, 2021	Apr. 28, 2021	Dec. 31, 2020
Line of Credit Facility [Line Items]
Finance lease obligations	$ 51,627			$ 37,943
Total debt	1,598,092			1,700,224
Less current portion and short-term notes	404,029			455,784
Long-term debt	1,194,063			1,244,440
Commercial paper
Line of Credit Facility [Line Items]
Debt	$ 128,000			0
1.0% Euro loan due May 2021
Line of Credit Facility [Line Items]
Interest rate (percent)	1.00%	1.00%
Debt	$ 0	$ 177,780		183,662
9.2% debentures due August 2021
Line of Credit Facility [Line Items]
Interest rate (percent)	9.20%
Debt	$ 4,321			4,320
4.375% debentures due November 2021
Line of Credit Facility [Line Items]
Interest rate (percent)	4.375%
Debt	$ 249,934			249,741
3.125% debentures due May 2030
Line of Credit Facility [Line Items]
Interest rate (percent)	3.125%
Debt	$ 595,026			594,687
5.75% debentures due November 2040
Line of Credit Facility [Line Items]
Interest rate (percent)	5.75%		5.75%
Debt	$ 536,165		$ 600,000	599,279
Other foreign denominated debt
Line of Credit Facility [Line Items]
Debt	17,816			15,522
Other notes
Line of Credit Facility [Line Items]
Debt	$ 15,203			$ 15,070

Debt - Schedule of Debt Repurch

Debt - Schedule of Debt Repurchased (Details) - USD ($) $ in Thousands	May 25, 2021	Jul. 04, 2021	Jun. 28, 2020	Apr. 28, 2021
Line of Credit Facility [Line Items]
Premium and Other Amounts Paid		$ 20,111	$ 0
5.75% debentures due November 2040
Line of Credit Facility [Line Items]
Interest rate (percent)		5.75%		5.75%
Principal Amount Tendered	$ 63,206
Premium and Other Amounts Paid	18,755
Total Cash Paid	$ 81,961

Debt - Narrative (Details)

Debt - Narrative (Details)	Jun. 30, 2021USD ($)	May 25, 2021USD ($)	May 21, 2021USD ($)	May 13, 2021USD ($)	Jul. 04, 2021USD ($)	Jun. 28, 2020USD ($)	Jul. 04, 2021USD ($)	Jun. 28, 2020USD ($)	May 25, 2021EUR (€)	Apr. 28, 2021USD ($)	Apr. 07, 2021EUR (€)	Dec. 31, 2020USD ($)		Jan. 31, 2020USD ($)
Line of Credit Facility [Line Items]
Loss from the early extinguishment of debt					$ (20,184,000)	$ 0	$ (20,184,000)	$ 0
Expected debt maturities through December 2021					404,029,000		404,029,000
Cash and cash equivalents					263,529,000		$ 263,529,000					$ 564,848,000	[1]
LIBOR
Line of Credit Facility [Line Items]
Basis points (percent)							1.25%
Revolving Credit Facility
Line of Credit Facility [Line Items]
Debt term	5 years
Maximum borrowing capacity	$ 750,000,000
Cash and cash equivalents					263,529,000		$ 263,529,000
Committed availability under credit facilities					622,000,000		622,000,000
Commercial Paper
Line of Credit Facility [Line Items]
Committed availability under credit facilities	$ 500,000,000
Reverse Treasury Lock Contract
Line of Credit Facility [Line Items]
Funding target										$ 100,000,000
Gain (loss) on derivative				$ (1,356,000)
Cross-currency swap
Line of Credit Facility [Line Items]
Funding target											€ 150,000,000			$ 250,000,000
Gain (loss) on derivative			$ 4,387,000
5.75% debentures due November 2040
Line of Credit Facility [Line Items]
Amount offered to be repurchased										300,000,000
Debt					$ 536,165,000		$ 536,165,000			$ 600,000,000		599,279,000
Interest rate (percent)					5.75%		5.75%			5.75%
Portion of outstanding debt repurchased (percent)		10.53%							10.53%
Cash cost of debt repurchased		$ 81,961,000
Non-cash write-offs, net				73,000
Loss from the early extinguishment of debt				$ 20,184,000
1.0% Euro loan due May 2021
Line of Credit Facility [Line Items]
Debt		$ 177,780,000			$ 0		$ 0					$ 183,662,000
Interest rate (percent)		1.00%			1.00%		1.00%		1.00%
Debt principal | €									€ 150,000,000
[1]	The year-end condensed consolidated balance sheet data was derived from audited financial statements, but does not include all disclosures required by accounting principles generally accepted in the United States of America.

Financial Instruments and Der_3

Financial Instruments and Derivatives - Carrying Amount and Fair Values of Financial Instruments (Details) - USD ($) $ in Thousands	Jul. 04, 2021	Dec. 31, 2020
Carrying Amount
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt, net of current portion, fair value	$ 1,194,063	$ 1,244,440
Fair value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt, net of current portion, fair value	$ 1,508,920	$ 1,538,132

Financial Instruments and Der_4

Financial Instruments and Derivatives - Additional Information (Details) MMBTU in Millions	May 21, 2021USD ($)	May 13, 2021USD ($)	Mar. 31, 2020USD ($)	Jul. 04, 2021USD ($)MMBTUT	Jun. 28, 2020USD ($)	May 25, 2021USD ($)	May 25, 2021EUR (€)	Apr. 28, 2021USD ($)	Apr. 07, 2021EUR (€)	Dec. 31, 2020USD ($)	Jan. 31, 2020USD ($)
Derivative [Line Items]
Fair value of commodity cash flow hedges, gain (loss)				$ 5,381,000						$ (647,000)
Commodity gain (loss) expected to be reclassified to the income statement during the next 12 months				3,478,000
Fair value of foreign currency cash flow hedges, gain (loss)				763,000						555,000
Foreign currency gain (loss) expected to be reclassified to the income statement during the next 12 months				763,000
Proceeds from foreign exchange forward contracts and interest rate swaps				4,387,000	$ 14,480,000
Total fair value of other derivatives not designated as hedging instruments				172,000						599,000
1.0% Euro loan due May 2021
Derivative [Line Items]
Outstanding balance				$ 0		$ 177,780,000				183,662,000
Interest rate (percent)				1.00%		1.00%	1.00%
Debt principal | €							€ 150,000,000
5.75% debentures due November 2040
Derivative [Line Items]
Amount offered to be repurchased								$ 300,000,000
Outstanding balance				$ 536,165,000				$ 600,000,000		599,279,000
Interest rate (percent)				5.75%				5.75%
Natural Gas Swaps
Derivative [Line Items]
Approximate amount of commodity covered by swap contracts outstanding (in MMBTUs) | MMBTU				5.5
Anticipated usage percentage covered by a swap contract for the current fiscal year (percent)				62.00%
Anticipated usage percentage covered by a swap contract for the next fiscal year (percent)				41.00%
Aluminum Swaps
Derivative [Line Items]
Anticipated usage percentage covered by a swap contract for the current fiscal year (percent)				53.00%
Approximate amount of commodity covered by swap contracts outstanding (in tons) | T				1,810
Forward contracts
Derivative [Line Items]
Fair value of foreign currency cash flow hedges, gain (loss)				$ (274,000)						$ 47,000
Foreign currency gain (loss) expected to be reclassified to the income statement during the next 12 months				(271,000)
Foreign currency gain (loss) reclassified to the income statement				$ 62,000
Cross-currency swap
Derivative [Line Items]
Notional amount									€ 150,000,000		$ 250,000,000
Gain (loss) on derivative	$ 4,387,000
Proceeds from foreign exchange forward contracts and interest rate swaps			$ 14,480,000
Tax provision on foreign currency translation gain			$ 7,581,000
Reverse Treasury Lock Contract
Derivative [Line Items]
Notional amount								$ 100,000,000
Gain (loss) on derivative		$ (1,356,000)

Financial Instruments and Der_5

Financial Instruments and Derivatives - Net Positions of Foreign Contracts (Details) - Jul. 04, 2021 ₺ in Thousands, € in Thousands, £ in Thousands, zł in Thousands, Kč in Thousands, $ in Thousands, $ in Thousands, $ in Thousands	COP ($)	MXN ($)	PLN (zł)	CZK (Kč)	EUR (€)	CAD ($)	GBP (£)	TRY (₺)
Cash Flow Hedging | Purchase
Derivative [Line Items]
Funding target	$ 9,976,203	$ 194,460	zł 41,954	Kč 27,864	€ 11,433	$ 6,968	£ 3,295	₺ 1,245

Financial Instruments and Der_6

Financial Instruments and Derivatives - Net Positions of Other Derivatives Contract (Details) - Jul. 04, 2021 Rp in Thousands, $ in Thousands, $ in Thousands, $ in Thousands	COP ($)	MXN ($)	CAD ($)	IDR (Rp)
Derivatives Not Designated as Hedging Instruments | Purchase
Derivative [Line Items]
Funding target	$ 24,649,532	$ 352,286	$ 3,448	Rp 25,660,982

Financial Instruments and Der_7

Financial Instruments and Derivatives - Location and Fair Values of Derivative Instruments (Details) - USD ($) $ in Thousands	Jul. 04, 2021	Dec. 31, 2020
Derivatives Designated as Hedging Instruments | Commodity contracts | Prepaid expenses
Derivatives, Fair Value [Line Items]
Derivative asset	$ 3,478	$ 867
Derivatives Designated as Hedging Instruments | Commodity contracts | Other assets
Derivatives, Fair Value [Line Items]
Derivative asset	1,903	0
Derivatives Designated as Hedging Instruments | Commodity contracts | Accrued expenses and other
Derivatives, Fair Value [Line Items]
Derivative liability	0	(1,512)
Derivatives Designated as Hedging Instruments | Commodity contracts | Other liabilities
Derivatives, Fair Value [Line Items]
Derivative liability	0	(2)
Derivatives Designated as Hedging Instruments | Foreign exchange contracts | Prepaid expenses
Derivatives, Fair Value [Line Items]
Derivative asset	1,020	997
Derivatives Designated as Hedging Instruments | Foreign exchange contracts | Accrued expenses and other
Derivatives, Fair Value [Line Items]
Derivative liability	(528)	(395)
Derivatives Designated as Hedging Instruments | Foreign exchange contracts | Other liabilities
Derivatives, Fair Value [Line Items]
Derivative liability	(3)	0
Derivatives Not Designated as Hedging Instruments | Commodity contracts | Prepaid expenses
Derivatives, Fair Value [Line Items]
Derivative asset	0	484
Derivatives Not Designated as Hedging Instruments | Foreign exchange contracts | Prepaid expenses
Derivatives, Fair Value [Line Items]
Derivative asset	241	140
Derivatives Not Designated as Hedging Instruments | Foreign exchange contracts | Accrued expenses and other
Derivatives, Fair Value [Line Items]
Derivative liability	$ (69)	$ (25)

Financial Instruments and Der_8

Financial Instruments and Derivatives - Effect of Derivative Instruments on Financial Performance (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 04, 2021	Jun. 28, 2020	Jul. 04, 2021	Jun. 28, 2020
Foreign exchange contracts
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Recognized in OCI on Derivatives	$ 751	$ (97)	$ 563	$ (5,075)
Foreign exchange contracts | Net sales
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Reclassified from Accumulated OCI Into Income	1,489	(3,384)	1,829	(4,522)
Foreign exchange contracts | Cost of sales
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Reclassified from Accumulated OCI Into Income	(1,190)	2,050	(1,418)	2,877
Foreign exchange contracts | Selling, general and administrative | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on derivative	220	866	(405)	(4,051)
Commodity contracts
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Recognized in OCI on Derivatives	4,847	1,709	6,601	(646)
Commodity contracts | Cost of sales
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Reclassified from Accumulated OCI Into Income	646	525	575	(554)
Commodity contracts | Cost of sales | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on derivative	$ 56	$ 184	$ 434	$ 184

Financial Instruments and Der_9

Financial Instruments and Derivatives - Reclassification of Gains and Losses (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 04, 2021	Jun. 28, 2020	Jul. 04, 2021	Jun. 28, 2020
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Revenue	$ 1,382,754	$ 1,245,485	$ 2,736,058	$ 2,548,781
Cost of sales	(1,120,101)	(997,502)	(2,195,504)	(2,034,208)
Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Revenue	1,489	(3,384)	1,829	(4,522)
Cost of sales	(544)	2,575	(843)	2,324
Cash Flow Hedges | Reclassification out of Accumulated Other Comprehensive Income | Foreign exchange contracts
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Revenue	1,489	(3,384)	1,829	(4,522)
Cost of sales	(1,190)	2,050	(1,418)	2,877
Cash Flow Hedges | Reclassification out of Accumulated Other Comprehensive Income | Commodity contracts
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Revenue	0	0	0	0
Cost of sales	$ 646	$ 525	$ 575	$ (554)

Fair Value Measurements - Asset

Fair Value Measurements - Assets and Liabilities Measured on Recurring Basis (Details) - Recurring basis - USD ($)	Jul. 04, 2021	Dec. 31, 2020
Derivatives Designated as Hedging Instruments | Commodity contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives	$ 5,381,000	$ (647,000)
Derivatives Designated as Hedging Instruments | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives	489,000	602,000
Derivatives Not Designated as Hedging Instruments | Commodity contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives		484,000
Derivatives Not Designated as Hedging Instruments | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives	172,000	115,000
Assets measured at NAV | Derivatives Designated as Hedging Instruments | Commodity contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives	0	0
Assets measured at NAV | Derivatives Designated as Hedging Instruments | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives	0	0
Assets measured at NAV | Derivatives Not Designated as Hedging Instruments | Commodity contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives		0
Assets measured at NAV | Derivatives Not Designated as Hedging Instruments | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives	0	0
Level 1 | Derivatives Designated as Hedging Instruments | Commodity contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives	0	0
Level 1 | Derivatives Designated as Hedging Instruments | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives	0	0
Level 1 | Derivatives Not Designated as Hedging Instruments | Commodity contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives		0
Level 1 | Derivatives Not Designated as Hedging Instruments | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives	0	0
Level 2 | Derivatives Designated as Hedging Instruments | Commodity contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives	5,381,000	(647,000)
Level 2 | Derivatives Designated as Hedging Instruments | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives	489,000	602,000
Level 2 | Derivatives Not Designated as Hedging Instruments | Commodity contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives		484,000
Level 2 | Derivatives Not Designated as Hedging Instruments | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives	172,000	115,000
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives	0
Level 3 | Derivatives Designated as Hedging Instruments | Commodity contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives	0	0
Level 3 | Derivatives Designated as Hedging Instruments | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives	0	0
Level 3 | Derivatives Not Designated as Hedging Instruments | Commodity contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives		0
Level 3 | Derivatives Not Designated as Hedging Instruments | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives	$ 0	$ 0

Employee Benefit Plans - Additi

Employee Benefit Plans - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jul. 04, 2021	Jun. 28, 2020	Jul. 04, 2021	Jun. 28, 2020
Defined Benefit Plan Disclosure [Line Items]
Contributions			$ 139,687,000	$ 8,602,000
Expected contributions for remainder of fiscal year	$ 7,000,000		7,000,000
Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Settlement losses recognized	547,631,000	$ 38,000	547,631,000	661,000
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	5,499,000	$ 5,716,000	11,834,000	11,694,000
Pension Plan | Sonoco Pension Plan for Inactive Participants
Defined Benefit Plan Disclosure [Line Items]
Expected contributions for remainder of fiscal year	133,000,000		133,000,000
Non-cash settlement charges expected to be incurred next year	$ 547,291,000
Settlement losses recognized			$ 340,000	$ 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%

Employee Benefit Plans - Compon

Employee Benefit Plans - Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 04, 2021	Jun. 28, 2020	Jul. 04, 2021	Jun. 28, 2020
Retirement Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 1,020	$ 1,003	$ 1,981	$ 2,085
Interest cost	9,657	12,549	19,764	25,230
Expected return on plan assets	(8,650)	(12,227)	(18,311)	(24,807)
Amortization of prior service cost	235	247	461	497
Amortization of net actuarial loss	6,378	7,258	13,249	14,134
Effect of curtailment loss	0	31	0	31
Effect of settlement loss	547,631	38	547,631	661
Net periodic benefit cost	556,271	8,899	564,775	17,831
Retiree Health and Life Insurance Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	95	93	189	176
Interest cost	50	81	100	165
Expected return on plan assets	(111)	(93)	(224)	(183)
Amortization of prior service cost	0	(69)	0	(137)
Amortization of net actuarial loss	(181)	(215)	(377)	(412)
Net periodic benefit cost	$ (147)	$ (203)	$ (312)	$ (391)

Income Taxes - Additional Infor

Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 04, 2021	Jun. 28, 2020	Jul. 04, 2021	Jun. 28, 2020
Income Tax Contingency [Line Items]
Effective tax rate	26.00%	30.00%	26.20%	27.20%
Increase of uncertain tax benefits			$ 600
Possible decrease in reserve for unrecognized tax benefits	$ 6,800		6,800
Release in reserve due to expiration of statute of limitations			$ 5,500
Internal Revenue Service (IRS)
Income Tax Contingency [Line Items]
Payment of taxes and interest to settle dispute	$ 5,613

Leases - Additional Information

Leases - Additional Information (Details)	6 Months Ended
	Jul. 04, 2021
Lessee, Lease, Description [Line Items]
Lease term	10 years
Minimum
Lessee, Lease, Description [Line Items]
Lease renewal terms	1 year
Maximum
Lessee, Lease, Description [Line Items]
Lease renewal terms	50 years

Leases - Balance Sheet Location

Leases - Balance Sheet Location and Values of Lease Assets and Lease Liabilities (Details) - USD ($) $ in Thousands	Jul. 04, 2021	Dec. 31, 2020
Leases [Abstract]
Operating lease assets	$ 271,241	$ 296,020	[1]
Finance lease assets	47,667	36,267
Total lease assets	318,908	332,287
Current operating lease liabilities	46,062	52,138
Current finance lease liabilities	6,075	4,663
Total current lease liabilities	52,137	56,801
Noncurrent operating lease liabilities	237,447	262,048	[1]
Noncurrent finance lease liabilities	45,552	33,280
Total noncurrent lease liabilities	282,999	295,328
Total lease liabilities	$ 335,136	$ 352,129
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Other Assets
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Accrued expenses and other
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	Notes payable and current portion of long-term debt
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	us-gaap:LongTermDebtNoncurrent
[1]	The year-end condensed consolidated balance sheet data was derived from audited financial statements, but does not include all disclosures required by accounting principles generally accepted in the United States of America.

Leases - Components of Company'

Leases - Components of Company's Lease Costs (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 04, 2021	Jun. 28, 2020	Jul. 04, 2021	Jun. 28, 2020
Leases [Abstract]
Operating lease cost	$ 11,902	$ 14,360	$ 25,097	$ 28,711
Amortization of lease asset	1,332	2,391	2,657	4,938
Interest on lease liabilities	337	238	630	463
Variable lease cost	6,689	8,576	12,773	21,861
Total lease cost	$ 20,260	$ 25,565	$ 41,157	$ 55,973

Leases - Other Lease Related In

Leases - Other Lease Related Information (Details) - USD ($) $ in Thousands	6 Months Ended
	Jul. 04, 2021	Jun. 28, 2020
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows used by operating leases	$ 26,620	$ 29,309
Operating cash flows used by finance leases	630	463
Financing cash flows used by finance leases	2,156	5,389
Leased assets obtained in exchange for new operating lease liabilities	6,705	25,896
Leased assets obtained in exchange for new finance lease liabilities	5,879	8,237
Modification to leased assets for increase in operating lease liabilities	6,845	3,804
Modification to leased assets for increase in finance lease liabilities	9,586	11,007
Termination reclasses to (decrease) operating lease assets	(4,319)	(2,188)
Termination reclasses to (decrease) operating lease liabilities	(4,336)	(2,353)
Termination reclasses to (decrease) finance lease assets	(21)	(19,994)
Termination reclasses to (decrease) finance lease liabilities	$ (23)	$ (20,121)

Revenue Recognition - Additiona

Revenue Recognition - Additional Information (Details)	6 Months Ended
	Jul. 04, 2021
Revenue from Contract with Customer [Abstract]
Payment terms	120 days

Revenue Recognition - Receivabl

Revenue Recognition - Receivables, Contract Assets and Liabilities from Contracts with Customer (Details) - USD ($) $ in Thousands	Jul. 04, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenue from Contract with Customer [Abstract]
Contract Assets	$ 49,666	$ 48,390	$ 56,364
Contract Liabilities	$ (17,243)	$ (16,687)	$ (17,047)

Revenue Recognition - Significa

Revenue Recognition - Significant Changes in the Contract Assets and Liabilities Balances (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jul. 04, 2021	Dec. 31, 2020
Contract Asset
Beginning Balance	$ 48,390	$ 56,364
Increases due to rights to consideration for customer specific goods produced, but not billed during the period	49,666	48,390
Transferred to receivables from contract assets recognized at the beginning of the period	(48,390)	(56,364)
Ending Balance	49,666	48,390
Contract Liability
Beginning Balance	(16,687)	(17,047)
Revenue deferred or rebates accrued	(20,817)	(32,512)
Recognized as revenue	3,347	9,189
Rebates paid to customers	16,914	23,683
Ending Balance	$ (17,243)	$ (16,687)

Revenue Recognition - Disaggreg

Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 04, 2021	Jun. 28, 2020	Jul. 04, 2021	Jun. 28, 2020
Disaggregation of Revenue [Line Items]
Revenue	$ 1,382,754	$ 1,245,485	$ 2,736,058	$ 2,548,781
United States
Disaggregation of Revenue [Line Items]
Revenue	902,179	829,194	1,799,929	1,679,659
Europe
Disaggregation of Revenue [Line Items]
Revenue	236,416	242,517	469,689	500,011
Canada
Disaggregation of Revenue [Line Items]
Revenue	54,178	47,728	101,367	99,150
Asia
Disaggregation of Revenue [Line Items]
Revenue	96,843	70,729	191,609	143,253
Other
Disaggregation of Revenue [Line Items]
Revenue	93,138	55,317	173,464	126,708
Consumer Packaging
Disaggregation of Revenue [Line Items]
Revenue	597,803	573,166	1,180,556	1,113,735
Consumer Packaging | United States
Disaggregation of Revenue [Line Items]
Revenue	413,576	419,144	811,373	806,409
Consumer Packaging | Europe
Disaggregation of Revenue [Line Items]
Revenue	110,248	90,329	225,428	180,152
Consumer Packaging | Canada
Disaggregation of Revenue [Line Items]
Revenue	30,193	26,732	56,336	52,577
Consumer Packaging | Asia
Disaggregation of Revenue [Line Items]
Revenue	18,375	17,744	39,528	34,282
Consumer Packaging | Other
Disaggregation of Revenue [Line Items]
Revenue	25,411	19,217	47,891	40,315
Industrial Paper Packaging
Disaggregation of Revenue [Line Items]
Revenue	608,532	455,026	1,173,929	957,517
Industrial Paper Packaging | United States
Disaggregation of Revenue [Line Items]
Revenue	346,367	273,325	671,589	569,545
Industrial Paper Packaging | Europe
Disaggregation of Revenue [Line Items]
Revenue	104,238	75,279	200,922	158,819
Industrial Paper Packaging | Canada
Disaggregation of Revenue [Line Items]
Revenue	23,985	20,996	45,031	46,573
Industrial Paper Packaging | Asia
Disaggregation of Revenue [Line Items]
Revenue	78,189	52,799	151,561	108,583
Industrial Paper Packaging | Other
Disaggregation of Revenue [Line Items]
Revenue	55,753	32,627	104,826	73,997
All Other
Disaggregation of Revenue [Line Items]
Revenue	176,419	217,293	381,573	477,529
All Other | United States
Disaggregation of Revenue [Line Items]
Revenue	142,236	136,725	316,967	303,705
All Other | Europe
Disaggregation of Revenue [Line Items]
Revenue	21,930	76,909	43,339	161,040
All Other | Canada
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
All Other | Asia
Disaggregation of Revenue [Line Items]
Revenue	279	186	520	388
All Other | Other
Disaggregation of Revenue [Line Items]
Revenue	$ 11,974	$ 3,473	$ 20,747	$ 12,396

Segment Reporting - Additional

Segment Reporting - Additional Information (Details)	6 Months Ended
	Jul. 04, 2021segment
Segment Reporting [Abstract]
Number of reportable segments (segment)	2

Segment Reporting - Segment Fin

Segment Reporting - Segment Financial Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 04, 2021	Jun. 28, 2020	Jul. 04, 2021	Jun. 28, 2020
Segment Reporting Information [Line Items]
Net sales	$ 1,382,754	$ 1,245,485	$ 2,736,058	$ 2,548,781
Operating profit	135,291	103,727	255,600	233,830
Restructuring/Asset impairment income/(charges)	1,445	(22,885)	(5,401)	(35,484)
Other non-base income/(charges), net	5,236	56	(7,276)	(1,154)
Consumer Packaging
Segment Reporting Information [Line Items]
Net sales	597,803	573,166	1,180,556	1,113,735
Industrial Paper Packaging
Segment Reporting Information [Line Items]
Net sales	608,532	455,026	1,173,929	957,517
All Other
Segment Reporting Information [Line Items]
Net sales	176,419	217,293	381,573	477,529
Operating Segments | Consumer Packaging
Segment Reporting Information [Line Items]
Net sales	597,803	573,166	1,180,556	1,113,735
Operating profit	59,813	84,449	135,423	148,205
Operating Segments | Industrial Paper Packaging
Segment Reporting Information [Line Items]
Net sales	608,532	455,026	1,173,929	957,517
Operating profit	57,885	33,235	108,071	92,836
Operating Segments | All Other
Segment Reporting Information [Line Items]
Net sales	176,419	217,293	381,573	477,529
Operating profit	10,912	8,872	24,783	29,427
Intersegment Sales
Segment Reporting Information [Line Items]
Net sales	31,039	27,136	62,613	55,426
Intersegment Sales | Consumer Packaging
Segment Reporting Information [Line Items]
Net sales	1,199	1,154	2,852	2,260
Intersegment Sales | Industrial Paper Packaging
Segment Reporting Information [Line Items]
Net sales	27,700	24,508	54,596	49,010
Intersegment Sales | All Other
Segment Reporting Information [Line Items]
Net sales	$ 2,140	$ 1,474	$ 5,165	$ 4,156

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended	116 Months Ended
	Sep. 29, 2019	Jul. 04, 2021	Dec. 31, 2020	Nov. 30, 2011
Site Contingency [Line Items]
Environmental accrual		$ 7,506	$ 8,133
Spartanburg, South Carolina Site | Selling, general and administrative
Site Contingency [Line Items]
Decrease of reserves	$ 10,000
Spartanburg, South Carolina Site | Tegrant Holding Corporation
Site Contingency [Line Items]
Environmental accrual		5,640	5,700	$ 17,400
Payment towards remediation of sites		1,760
Multiple Sites
Site Contingency [Line Items]
Environmental accrual		$ 1,866	$ 2,433