Business Acquisition [Axis] Business Acquisition [Axis] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Total lease payments Lessee, Operating Lease, Liability, to be Paid Deferred income taxes Deferred Income Tax Assets, Net Performance assumption change (shares) Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Performance Assumption Change The change in the number of shares under a share-based award plan other than a stock option plan due to a change in the performance assumptions. Number of manufacturing locations Business Combination, Number of Manufacturing Locations Business Combination, Number of Manufacturing Locations Entity Address, Postal Zip Code Entity Address, Postal Zip Code Finance lease ROU assets Finance Lease, Right-of-Use Asset, after Accumulated Amortization Net actuarial (loss) gain and service cost, tax (expense) benefit Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, Tax Property, Plant and Equipment [Abstract] Property, Plant and Equipment [Abstract] Debt Instrument [Axis] Debt Instrument [Axis] Diluted earnings per share: Earnings Per Share, Diluted, Two Class Method [Abstract] Property, plant and equipment, gross Property, Plant and Equipment, Gross Total finance lease liabilities Finance Lease, Liability Cash dividends paid Payments of Ordinary Dividends, Common Stock Line of Credit Facility, Maximum Borrowing Capacity Line of Credit Facility, Maximum Borrowing Capacity Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Inventory, Net [Abstract] Inventory, Net [Abstract] Foreign exchange contracts Foreign Exchange Contract [Member] Prepaid Expense and Other Assets, Current [Abstract] Prepaid Expense and Other Assets, Current [Abstract] Other Income and Expenses [Abstract] Other Income and Expenses [Abstract] Additional paid-in capital Additional Paid in Capital Schedule of Other (Income) Expense, Net Schedule of Other Nonoperating Income (Expense) [Table Text Block] Other investing activities Payments for (Proceeds from) Other Investing Activities 2027 Finance Lease, Liability, to be Paid, Year Four Statistical Measurement [Domain] Statistical Measurement [Domain] Indefinite-lived Intangible Assets, Major Class Name [Domain] Indefinite-Lived Intangible Assets, Major Class Name [Domain] Exercised (shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Accounts Payable, Current [Abstract] Accounts Payable, Current [Abstract] Short-term Debt, Type [Axis] Short-Term Debt, Type [Axis] Operating leases, Weighted-average remaining discount rate Operating Lease, Weighted Average Discount Rate, Percent Interest rate, stated percentage Debt Instrument, Interest Rate, Stated Percentage Schedule of the Effect of Derivative Instruments on the Consolidated Statements of Income Derivative Instruments, Gain (Loss) [Table Text Block] Share-based Payment Arrangement [Abstract] Share-Based Payment Arrangement [Abstract] North America Confectionery North America Confectionery Segment [Member] North America Confectionery Segment [Member] Conversion of Class B Common Stock into Common Stock Stock Issued During Period, Value, Conversion of Convertible Securities Total net periodic benefit cost Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Fair value, net asset (liability) Fair Value, Net Asset (Liability) Repurchase of common stock (including excise tax) Treasury Stock, Value, Acquired, Cost Method 2026 Finance Lease, Liability, to be Paid, Year Three Net income Net income Net Income (Loss) Attributable to Parent Lease, Description [Table] Lessee, Lease, Description [Table] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Expected volatility Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Weighted Average Volatility Rate Antidilutive securities excluded from computation of earnings per share (shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Total lease liabilities Operating & Finance, Lease Liability Present value of lessee's discounted obligation for lease payments from operating and finance leases. 2023 (rest of year) Finance Lease, Liability, to be Paid, Remainder of Fiscal Year Reallocation of total earnings as a result of conversion of Class B common stock to Common stock Distributed Earnings Amortization of prior service credit Defined Benefit Plan, Amortization of Prior Service Cost (Credit) Subsequent Event Type [Axis] Subsequent Event Type [Axis] Operating leases Lessee, Operating Lease, Liability, to be Paid [Abstract] Share Repurchase Program [Domain] Share Repurchase Program [Domain] Equity Component [Domain] Equity Component [Domain] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Scenario [Axis] Scenario [Axis] Hershey Trust Company Hershey Trust Company [Member] Hershey Trust Company Restructuring Plan [Axis] Restructuring Plan [Axis] Leases Lessee, Operating Leases [Text Block] Amortization of ROU assets, Finance lease cost Finance Lease, Right-of-Use Asset, Amortization Foreign currency translation adjustments Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax Lease, Description [Line Items] Lessee, Lease, Description [Line Items] Treasury—common stock shares, at cost: 17,179,435 at April 2, 2023 and 16,588,308 at December 31, 2022 Treasury Stock, Common, Value Net losses (gains) on mark-to-market valuation of commodity derivative positions recognized in unallocated derivative (gains) losses Net Mark to Market Valuation of Certain Derivative Positions Recognized in Unallocated Derivative (Gains) Losses Changes in the values of derivative positions that is recorded in unallocated derivative (gains)/losses Dot's Pretzels, LLC Dot's Pretzels, LLC [Member] Dot's Pretzels, LLC Supplier finance program obligations Supplier Finance Program, Obligation, Current Supplier Finance Program, Obligation, Current Pension and post-retirement benefit plans, net of tax Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax Hedging Designation [Domain] Hedging Designation [Domain] Operating lease liabilities, extensible list Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Supplemental Disclosure Supplemental Cash Flow Information [Abstract] Derivative Instrument [Axis] Derivative Instrument [Axis] 2018 Share Repurchase Program 2018 Share Repurchase Program [Member] 2018 Share Repurchase Program [Member] 2023 (rest of year) Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year Goodwill [Line Items] Goodwill [Line Items] Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Entity Address, State or Province Entity Address, State or Province Quoted prices in active markets of identical assets (Level 1) Fair Value, Inputs, Level 1 [Member] Short-term Debt, Weighted Average Interest Rate, at Point in Time Short-Term Debt, Weighted Average Interest Rate, at Point in Time Other comprehensive income, net of tax: Other Comprehensive Income (Loss), Net of Tax [Abstract] Options outstanding, weighted-average remaining contractual term Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Pretzels, Inc. Pretzels, Inc. [Member] Pretzels, Inc. Other Accounts Payable, Other, Current Award Type [Axis] Award Type [Axis] Schedule of Unallocated Mark-to-Market (Gains) Losses on Commodity Derivatives Allocation Of Net Derivative Gains Losses From Economic Hedges To Operating Results Of Reporting Segments Table [Table Text Block] Allocation Of Net Derivative Gains Losses From Economic Hedges To Operating Results Of Reporting Segments Table [Table Text Block] North America Salty Snacks North America Salty Snacks Segment [Member] North America Salty Snacks Segment Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Operating lease liabilities Operating Lease, Liability, Current Conversion of Class B common stock to Common shares outstanding (shares) Incremental Common Shares Attributable to Dilutive Effect of Conversion of Common Stock Incremental Common Shares Attributable to Dilutive Effect of Conversion of Common Stock Derivative asset Derivative Asset Total net share repurchases (shares) Treasury Stock, Shares, Excluding Excise Tax Treasury Stock, Shares, Excluding Excise Tax Property, plant and equipment, net Property, Plant and Equipment [Member] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Restructuring and related cost, expected cost Restructuring and Related Cost, Expected Cost Performance stock units and restricted stock units Performance Stock Units and Restricted Stock Units [Member] Performance Stock Units and Restricted Stock Units [Member] Property, plant and equipment, net Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment Dividends paid per share: Dividends (including dividend equivalents): Dividends, Common Stock [Abstract] Long-term portion Long-Term Debt, Excluding Current Maturities Total liabilities Liabilities Operating leases, Weighted-average remaining lease term (years) Operating Lease, Weighted Average Remaining Lease Term Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Geographical [Axis] Geographical [Axis] Reclassification to earnings, pre-tax amount Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax Investing Activities Net Cash Provided by (Used in) Investing Activities [Abstract] Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Revolving Credit Facility Revolving Credit Facility [Member] Prepaid expenses Prepaid Expense Intrinsic value of share-based liabilities paid, combined with the fair value of shares vested (in millions of dollars) Share Based Compensation Arrangement By Share Based Payment Award Intrinsic Value Of Share Based Liabilities Paid Combined With Fair Value Of Shares Vested Intrinsic value of share-based liabilities paid, combined with the fair value of shares vested (in millions of dollars). Preferred stock, shares issued (shares) Preferred Stock, Shares Issued Document Type Document Type Termination date, extension term Debt, Termination Date, Extension Term Debt, Termination Date, Extension Term Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Accumulated depreciation Accumulated Depreciation [Member] Accumulated Depreciation [Member] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Restructuring Type [Axis] Restructuring Type [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Outstanding at beginning of period (USD per share) Outstanding at end of period (USD per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Segments [Axis] Segments [Axis] Current assets acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets Short and Long-Term Debt Debt Disclosure [Text Block] Finance leases Finance Lease, Liability, to be Paid [Abstract] Entity Shell Company Entity Shell Company Class B common stock Common Class B [Member] Pension Assets for Plan Benefits, Defined Benefit Plan 2024 Lessee, Operating Lease, Liability, to be Paid, Year One Gains (losses) on cash flow hedging derivatives, pre-tax amount Gains (losses) recognized in other comprehensive income (“OCI”) Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax Operating lease liabilities, extensible list Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Common stock, conversion basis (shares) Deferred Compensation Arrangement with Individual, Conversion Basis Deferred Compensation Arrangement with Individual, Conversion Basis Consolidation Items [Domain] Consolidation Items [Domain] Subsequent Event Subsequent Event [Member] Document Period End Date Document Period End Date Retirement Plan Name [Domain] Retirement Plan Name [Domain] Business Realignment Activities Restructuring, Impairment, and Other Activities Disclosure [Text Block] Net assets acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Total assets Assets Debt Disclosure [Abstract] Debt Disclosure [Abstract] Earnings Per Share [Abstract] Earnings Per Share [Abstract] Income Statement Location [Axis] Income Statement Location [Axis] Employer contributions Defined Benefit Plan, Plan Assets, Contributions by Employer Antidilutive Securities [Axis] Antidilutive Securities [Axis] Schedule of Information Pertaining to Fair Value of PSUs and RSUs Granted for Potential Future Distribution Schedule of Share-based Payment Award, Equity Instruments Other than Options, Valuation Assumptions [Table Text Block] Schedule of Share-based Payment Award, Equity Instruments Other than Options, Valuation Assumptions [Table Text Block] Interest rate swap Interest Rate Swap [Member] Accrued liabilities Total accrued liabilities Accrued Liabilities, Current Schedule of Restructuring and Related Costs [Table] Schedule of Restructuring and Related Costs [Table] Current portion of long-term debt Less—current portion Long-Term Debt, Current Maturities Exercises (USD per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Net cash used in financing activities Net Cash Provided by (Used in) Financing Activities Total long-term debt, fair value Long-Term Debt, Fair Value Accounting Policies [Abstract] Accounting Policies [Abstract] Stock repurchase program, authorized amount Stock Repurchase Program, Authorized Amount Interest expense Interest Expense, Debt Payroll, compensation and benefits Employee-related Liabilities, Current Line of Credit Line of Credit [Member] Prepaid expenses and other Prepaid Expense and Other Assets, Current Income before income taxes Income before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Segments [Domain] Segments [Domain] Deferred income taxes Deferred Income Taxes and Tax Credits Schedule of Goodwill [Table] Schedule of Goodwill [Table] Earnings Per Share Earnings Per Share [Text Block] Interest cost Defined Benefit Plan, Interest Cost Finance lease liabilities, non-current Finance Lease, Liability, Noncurrent Schedule of Activity Relating to Grants of PSUs and RSUs Disclosure of Share-Based Compensation Arrangements by Share-Based Payment Award [Table Text Block] Schedule of Fair Value Estimated on the Grant Date and the Weighted Average Assumptions Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Schedule of Short-term Debt Schedule of Short-Term Debt [Table Text Block] Reallocation of undistributed earnings Undistributed Earnings (Loss) Allocated to Participating Securities, Diluted Weaver Popcorn Manufacturing, Inc. Weaver Popcorn Manufacturing, Inc. [Member] Weaver Popcorn Manufacturing, Inc. Supplemental Balance Sheet Information Supplemental Balance Sheet Disclosures [Text Block] Schedule of the Classification of Derivative Assets and Liabilities within the Consolidated Balance Sheets Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Award Type [Domain] Award Type [Domain] Customer relationships Finite-Lived Customer Relationships, Gross Buildings Buildings and Improvements, Gross Employee service share-based compensation, nonvested awards, compensation cost not yet recognized, period for recognition Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Options exercisable, weighted aver remaining contractual term Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Restructuring Plan [Domain] Restructuring Plan [Domain] Schedule of Gross Carrying Amount and Accumulated Amortization for Each Major Class of Intangible Asset Schedule of Finite-Lived Intangible Assets [Table Text Block] Net change (shares) Treasury Stock, Shares, Net Change During Period Treasury Stock, Shares, Net Change During Period Other comprehensive income Other Comprehensive Income (Loss), before Reclassifications, Net of Tax Derivative Contract [Domain] Derivative Contract [Domain] Gross profit Gross Profit Maximum length of time, hedged in cash flow hedge Maximum Length of Time Hedged in Cash Flow Hedge Entity Registrant Name Entity Registrant Name 2.650% Notes Notes 2.650% Notes Due 2050 [Member] Notes 2.650% Notes Due 2050 2.625% Notes Notes 2.625% Due 2023 [Member] Notes 2.625% Due 2023 [Member] Schedule of Supplemental Balance Sheet Information Schedule of Supplemental Balance Sheet Information [Table Text Block] Schedule of Supplemental Balance Sheet Information [Table Text Block] Cash flow hedges, net of tax AOCI, Cash Flow Hedge, Cumulative Gain (Loss), after Tax 3.200% Notes Notes 3.20% Due 2025 [Member] Notes 3.20% Due 2025 [Member] Less: Imputed interest Lessee Operating and Fiannce Lease Liability Undiscounted Excess Amount Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for operating and finance leases. Dividend yields Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Rate Line Of Credit Facility, Accordion Feature Increase Limit Line Of Credit Facility, Accordion Feature Increase Limit Line Of Credit Facility, Accordion Feature Increase Limit Foreign currency translation Goodwill, Foreign Currency Translation Gain (Loss) Net (losses) gains on commodity derivative positions reclassified from unallocated to segment income Net Gain Loss On Commodity Derivative Positions Reclassified From Unallocated Derivative Gains Losses To Segment Income The amount of gain (loss) from commodity derivative positions reclassified from unallocated derivative (gains) losses to segment income. Patents Patents [Member] Customer Relationships Customer Relationships [Member] Entity Address, City or Town Entity Address, City or Town Pension and Other Post-Retirement Benefit Plans Retirement Benefits [Text Block] Leases [Abstract] Leases [Abstract] Other non-current assets Other Miscellaneous Assets, Non-Current Other Miscellaneous Assets, Non-Current Total stockholders’ equity Beginning balance, stockholders' equity Ending balance, stockholders' equity Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Minimum Minimum [Member] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Entity Emerging Growth Company Entity Emerging Growth Company Raw materials Inventory, Raw Materials, Net of Reserves Gains (losses) derivatives, after-tax amount Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax 0.900% Notes Notes 0.900% Notes Due 2025 [Member] Notes 0.900% Notes Due 2025 Derivative liability, gross liabilities Derivative Liability, Cash Transfers Receivable (Payable), Change In Quoted Market Prices On The Last Day Of Trading Derivative Liability, Cash Transfers Receivable (Payable), Change In Quoted Market Prices On The Last Day Of Trading Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Treasury Common Stock Treasury Stock, Common [Member] Pension Benefits  Pension Plan [Member] Estimated values (USD per share) Share Price Trading Symbol Trading Symbol Entity File Number Entity File Number Treasury stock acquired, average cost per share (USD per share) Treasury Stock Acquired, Average Cost Per Share Minimum length of time, hedged in cash flow hedge Minimum Length of Time Hedged in Cash Flow Hedge Minimum length of time over which the entity is hedging its exposure to the variability in future cash flows for forecasted transactions, excluding those forecasted transactions related to the payment of variable interest on existing financial instruments, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Treasury stock, shares (shares) Treasury Stock, Common, Shares Accounts payable—trade Accounts Payable, Trade, Current Allocation of undistributed earnings Undistributed Earnings (Loss) Allocated to Participating Securities, Basic Granted (shares) Units granted (shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Entity Information [Line Items] Entity Information [Line Items] Effective Income Tax Rate Reconciliation, Percent Effective Income Tax Rate Reconciliation, Percent Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Net impact of interest rate swaps, debt issuance costs and unamortized debt discounts Debt Instrument, Impact of Derivatives, Unamortized Discount (Premium), and Debt Issuance Costs, Net Debt Instrument, Impact of Derivatives, Unamortized Discount (Premium), and Debt Issuance Costs, Net Post-retirement benefits liabilities Liability, Other Postretirement Defined Benefit Plan, Noncurrent Restructuring and Related Cost, Cost Incurred to Date Restructuring and Related Cost, Cost Incurred to Date 2023 (rest of year) Lessee Operating and Financing Lease, Liability, to be Paid, Remainder of Fiscal Year Amount of lessee's undiscounted obligation for lease payment for operating and finance leases to be paid in remainder of current fiscal year. Accounts payable and accrued liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities Income Taxes Income Tax Disclosure [Text Block] Finished goods Inventory, Finished Goods, Net of Reserves Credit Facility [Domain] Credit Facility [Domain] Amortization of Intangible Assets Amortization of Intangible Assets Long-term debt, fair value Long-term Debt, Excluding Current Maturities, Fair Value Long-term Debt, Excluding Current Maturities, Fair Value Schedule of the Changes in the Carrying Value of Goodwill by Reportable Segment Schedule of Goodwill [Table Text Block] Interest paid Interest Paid, Excluding Capitalized Interest, Operating Activities Net income per share - basic (USD per share) Earnings Per Share, Basic Reclassification to earnings, tax (expense) benefit Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax Share-based compensation arrangement by share-based payment award, award requisite service period Share-Based Compensation Arrangement by Share-Based Payment Award, Award Requisite Service Period 2026 Lessee, Operating Lease, Liability, to be Paid, Year Three Construction in progress Construction in Progress, Gross Defined Benefit Plan Disclosure [Line Items] Defined Benefit Plan Disclosure [Line Items] Gains (losses) reclassified from accumulated OCI (“AOCI”) into income (b) Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax Corporate, Non-Segment Corporate, Non-Segment [Member] Concentration Risk Type [Domain] Concentration Risk Type [Domain] Deferred performance stock units, deferred restricted stock units, and directors' fees and accumulated dividend amounts representing deferred stock units outstanding (shares) Deferred Compensation Arrangement with Individual, Shares Issued Indefinite-lived Intangible Assets [Axis] Indefinite-Lived Intangible Assets [Axis] Right-of-Use Asset Obtained in Exchange for Finance Lease Liability Right-of-Use Asset Obtained in Exchange for Finance Lease Liability Forfeited (USD per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Net actuarial (loss) gain and service cost, pre-tax amount Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, before Tax Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Performance assumption change (USD per share) Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Performance Assumption Change Weighted Average Grant Date Fair Value The weighted average fair value as of the grant date pertaining to a share-based award plan other than a stock option plan due to a change in the performance assumptions. Entity Interactive Data Current Entity Interactive Data Current Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Finite-lived intangible assets, accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Deferred compensation derivatives Equity Swap [Member] Changes in assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Retained Earnings Retained Earnings [Member] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Common Stock Dividends, Common Stock, Cash Net lease cost (2) Lease, Cost Common stock Common Stock [Member] Other (income) expense, net Other Nonoperating, Gain (Loss) Other Nonoperating, Gain (Loss) Number of reportable segments Number of Reportable Segments Schedule of Components of Lease Expense Lease, Cost [Table Text Block] Repurchase of common stock Payments for Repurchase of Common Stock Class of Stock [Axis] Class of Stock [Axis] Statement [Table] Statement [Table] Vested (USD per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Document Quarterly Report Document Quarterly Report Excise tax associated with net share repurchases Treasury Stock, Value, Excise Tax Treasury Stock, Value, Excise Tax Current assets: Assets, Current [Abstract] Operating lease liabilities Operating Lease, Liability, Noncurrent Statistical Measurement [Axis] Statistical Measurement [Axis] Treasury stock, shares, acquired (shares) Shares repurchased (shares) Treasury Stock, Shares, Acquired 3.375% Notes Notes 3.375% Due 2023 [Member] Notes 3.375% Due 2023 Total other comprehensive income, pre-tax amount Other Comprehensive Income (Loss), before Tax Indefinite-lived intangible assets, excluding goodwill Indefinite-Lived Intangible Assets (Excluding Goodwill) Schedule of Segment Information by Geography Revenue from External Customers by Geographic Areas [Table Text Block] Retained earnings Retained Earnings (Accumulated Deficit) Thereafter Financing Lease, Liability, to be Paid, after Year Four Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid after forth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Other Other Operating Activities, Cash Flow Statement Settlement loss Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement Accounts receivable—trade, net Accounts Receivable, after Allowance for Credit Loss, Current Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Equity Components [Axis] Equity Components [Axis] Scenario [Domain] Scenario [Domain] Trademarks Trademarks [Member] Fair Value, Measurements, Recurring Fair Value, Recurring [Member] Options exercisable (USD per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price Total net share repurchases Treasury Stock, Value, Excluding Excise Tax Treasury Stock, Value, Excluding Excise Tax Interest expense, net Interest expense, net Interest Income (Expense), Nonoperating, Net Document Fiscal Year Focus Document Fiscal Year Focus Operating Activities Net Cash Provided by (Used in) Operating Activities [Abstract] 2021 Share Repurchase Program 2021 Share Repurchase Program [Member] 2021 Share Repurchase Program [Member] Statement [Line Items] Statement [Line Items] Financing cash flows from finance leases Finance Lease, Principal Payments Outstanding shares at beginning of period (shares) Outstanding shares at end of period (shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Unallocated corporate expense Nonoperating Income (Expense) Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Business realignment costs Restructuring Charges, Business Realignment Restructuring Charges, Business Realignment Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Finite-lived intangible assets, gross Finite-Lived Intangible Assets, Gross Selling, marketing and administrative expense Selling, General and Administrative Expense Operating lease ROU assets Operating Lease, Right-of-Use Asset Treasury stock, shares, acquired Stock repurchased during period, value Stock Repurchased During Period, Value Accumulated Other Comprehensive (Loss) Income AOCI Attributable to Parent [Member] Trademarks Finite-Lived Trademarks, Gross 3.125% Notes Notes 3.125% Due 2049 [Member] Notes 3.125% Due 2049 [Member] Type of Restructuring [Domain] Type of Restructuring [Domain] Document Transition Report Document Transition Report Local Phone Number Local Phone Number Schedule of Activity Relating to the Grants of Stock Options Share-Based Payment Arrangement, Option, Activity [Table Text Block] Operating profit Operating profit Operating Income (Loss) Inventories Increase (Decrease) in Inventories Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Prepaid expenses and other current assets Increase (Decrease) in Prepaid Expense and Other Assets Goodwill Goodwill, beginning balance Goodwill, ending balance Goodwill Reclassification to earnings, pre-tax amount Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Goodwill and Intangible Assets Goodwill and Intangible Assets Disclosure [Text Block] Provision for income taxes Income Tax Expense (Benefit) Geographical [Domain] Geographical [Domain] Deferred income taxes Deferred Income Tax Liabilities, Net 2027 Lessee, Operating Lease, Liability, to be Paid, Year Four Income Statement [Abstract] Income Statement [Abstract] Schedule of Revenue by Major Customers, by Reporting Segments [Table] Schedule of Revenue by Major Customers, by Reporting Segments [Table] Granted (shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross Hedging Relationship [Axis] Hedging Relationship [Axis] Additional Paid-in Capital Additional Paid-in Capital [Member] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Document Fiscal Period Focus Document Fiscal Period Focus Net income per share—basic: Earnings Per Share, Basic [Abstract] Cumulative amount of mark-to-market gains (losses) on commodity derivatives Cumulative Amount of Mark-to-Market Gains (Losses) on Commodity Derivatives Cumulative Amount of Mark-to-Market Gains (Losses) on Commodity Derivatives Intrinsic value of options exercised (in millions of dollars) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value Cost of sales Cost of Goods and Services Sold Inventories at First In First Out FIFO Inventory Amount Shares issued for stock options and incentive compensation Shares Issued, Value, Share-Based Payment Arrangement, before Forfeiture Total weighted-average shares—diluted (shares) Weighted Average Number of Shares Outstanding, Diluted Derivative [Line Items] Derivative [Line Items] Accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Derivative liability Derivative Liability Pension and post-retirement benefit plans: Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax [Abstract] Expected term in years Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term Dividends paid per share (USD per share) Common Stock, Dividends, Per Share, Cash Paid Gross derivative assets, included within derivative liabilities Derivative Asset, Cash Transfers Receivable (Payable), Change In Quoted Market Prices On The Last Day Of Trading Derivative Asset, Cash Transfers Receivable (Payable), Change In Quoted Market Prices On The Last Day Of Trading Common stock Common Stock, Value, Issued Business realignment costs Restructuring Charges [Member] Current liabilities acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Preferred Stock Preferred Stock [Member] Weighted-average fair value at date of grant (USD per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Operating Segments Operating Segments [Member] Cash flow hedge gain (loss) to be reclassified within twelve months Cash Flow Hedge Gain (Loss) to be Reclassified within 12 Months Deferred income taxes Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets Aggregate intrinsic value of options exercisable Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] Cash and cash equivalents Cash and cash equivalents, beginning of period Cash and cash equivalents, end of period Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents Foreign currency translation (losses) gains during period, after-tax amount Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Contingencies Commitments and Contingencies Disclosure [Text Block] Current liabilities: Liabilities, Current [Abstract] Proceeds from exercised stock options Proceeds from Stock Options Exercised Common stock, shares issued (shares) Common Stock, Shares, Issued Capitalized interest Interest Costs Capitalized Adjustment Interest on lease liabilities, Finance lease cost Finance Lease, Interest 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