DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION (Policies)	6 Months Ended
Jun. 30, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Condensed Consolidated Financial Statements	Condensed Consolidated Financial Statements The accompanying unaudited condensed consolidated financial statements of the Company have been prepared in accordance with accounting principles generally accepted in the U.S. (“U.S. GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X of the U.S. Securities and Exchange Commission (“SEC”). Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal and recurring adjustments unless otherwise disclosed) considered necessary for a fair presentation have been included. Operating results for the thirteen and twenty-six weeks ended June 30, 2019 are not necessarily indicative of the results that may be expected for the year ending December 29, 2019. For further information, refer to the consolidated financial statements and notes thereto included in the Company’s annual report on Form 10-K for the year ended December 30, 2018. The Company operates on a 52/53-week fiscal year that ends on the Sunday falling on or before December 31. The reader should assume any reference we make to a particular year (for example, 2019) in the notes to these Condensed Consolidated Financial Statements applies to our fiscal year and not the calendar year. The Condensed Consolidated Financial Statements include the accounts of the Company and its majority-owned subsidiaries. We eliminate all significant affiliate accounts and transactions upon consolidation. The Condensed Consolidated Financial Statements have been prepared in conformity with U.S. GAAP using management’s best estimates and judgments. These estimates and judgments affect the reported amounts of assets and liabilities and disclosure of the contingent assets and liabilities at the date of the financial statements. The estimates and judgments will also affect the reported amounts for certain revenues and expenses during the reporting period. Actual results could differ materially from these estimates and judgments. Significant estimates made by the Company include the allowance for doubtful accounts, reserves related to inventory obsolescence or valuation, useful lives of long-lived assets, goodwill, valuation of deferred tax assets, insurance accruals, valuation of pension and other postretirement benefits obligations, income tax accruals, certain derivative positions and valuations of acquired businesses.
Foreign Currency Transactions and Translations	The functional currency of the Company's U.S. and Mexico operations and certain holding-company subsidiaries in Luxembourg, the U.K. and Ireland is the U.S. dollar. The functional currency of its U.K. operations is the British pound. The functional currency of the Company's operations in France and the Netherlands is the euro. For foreign currency-denominated entities other than the Company's Mexico operations, translation from local currencies into U.S. dollars is performed for most assets and liabilities using the exchange rates in effect as of the balance sheet date. Income and expense accounts are remeasured using average exchange rates for the period. Adjustments resulting from translation of these financial records are reflected as a separate component of Accumulated other comprehensive loss in the Condensed Consolidated Balance Sheets. For the Company's Mexico operations, remeasurement from the Mexican peso to U.S. dollars is performed for monetary assets and liabilities using the exchange rate in effect as of the balance sheet date. Remeasurement is performed for non-monetary assets using the historical exchange rate in effect on the date of each asset’s acquisition. Income and expense accounts are remeasured using average exchange rates for the period. Net adjustments resulting from remeasurement of these financial records are reflected in Foreign currency transaction losses (gains) in the Condensed Consolidated Statements of Income.
Leases	Leases The Company determines if an arrangement is a lease at inception. Operating leases are included in Operating lease assets, net, Accrued expenses and other current liabilities, and Noncurrent operating lease liabilities, less current maturities, in our Condensed Consolidated Balance Sheet. Finance leases are included in Property, plant and equipment, net, Current portion of long-term debt, and Long-term debt, less current maturities, in our Condensed Consolidated Balance Sheet. Beginning with the adoption of Accounting Standards Update (“ASU”) 2016-02 on December 31, 2018, operating lease assets and operating lease liabilities are initially recognized based on the present value of the future minimum lease payments over the lease term at commencement date. As most of our leases do not provide an implicit interest rate, we use our incremental borrowing rate based on the information available at commencement date in determining the present value of future payments. The operating lease asset also includes any lease payments made, including upfront costs and prepayments, and excludes lease incentives and initial direct costs incurred. Our lease terms may include options to extend or terminate a lease when it is reasonably certain that we will exercise that option. Leases with an initial term of 12 months or less are not recorded on the balance sheet. Lease expense for minimum lease payments is recognized on a straight-line basis over the lease term with a corresponding reduction to the operating lease asset. The Company has lease agreements with lease and non-lease components. Beginning in 2019, lease and non-lease components are generally accounted for separately. For certain equipment leases, such as vehicles, we account for the lease and non-lease components as a single lease component.
Restricted Cash	Restricted Cash The Company is required to maintain cash balances with a broker as collateral for exchange traded futures contracts. These balances are classified as restricted cash as they are not available for use by the Company to fund daily operations. The balance of restricted cash may also include investments in U.S. Treasury Bills that qualify as cash equivalents, as required by the broker, to offset the obligation to return cash collateral.
Recent Accounting Pronouncements	Recent Accounting Pronouncements Adopted as of June 30, 2019 In February 2016, the Financial Accounting Standards Board (“FASB”) issued ASU 2016-02, Leases (Topic 842), along with several updates, which, in an effort to increase transparency and comparability among organizations utilizing leasing, requires an entity that is a lessee to recognize the assets and liabilities arising from operating leases on the balance sheet. This guidance also requires disclosures about the amount, timing and uncertainty of cash flows arising from leases. In transition, the entity may elect to recognize and measure leases at the beginning of the earliest period presented using a modified retrospective approach or the beginning of the period of adoption using a cumulative-effect adjustment approach. We adopted the new standard on December 31, 2018 and recognized and measured leases at the beginning of the period of adoption. We elected the package of practical expedients available under the transition guidance which, among other things, allows the carry-forward of historical lease classification. The Company also elected the practical expedient allowing use of hindsight in assessing the lease term. We made an accounting policy election to not apply the new guidance to leases with a term of 12 months or less and will recognize those payments in the Condensed Consolidated Statement of Income on a straight-line basis over the lease term. We implemented a system solution for administering our leases and facilitating compliance with the new guidance. Adoption of the standard had a material impact on our Condensed Consolidated Balance Sheet as a result of the increase in assets and liabilities from recognition of operating lease assets and operating lease liabilities. However, the standard did not have a material impact on our Condensed Consolidated Statement of Income. In August 2017, the FASB issued ASU 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities, an accounting standard update that simplifies the application of hedge accounting guidance in current GAAP and improves the reporting of hedging relationships to better portray the economic results of an entity’s risk management activities in its financial statements. Among the simplification updates, the standard eliminates the requirement in current GAAP to separately recognize periodic hedge ineffectiveness. Mismatches between the changes in value of the hedged item and hedging instrument may still occur but they will no longer be separately reported. The standard requires the presentation of the earnings effect of the hedging instrument in the same income statement line item in which the earnings effect of the hedged item is reported. The standard is effective for annual and interim reporting periods beginning after December 15, 2018, but early adoption is permitted. We have adopted this standard as of December 31, 2018. The adoption of this guidance did not have a material impact on our financial statements. In February 2018, the FASB issued ASU 2018-02, Income Statement—Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income, an accounting standard update that allows a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the U.S. Tax Cuts and Jobs Act. The Company will not reclassify the stranded tax effects associated with the U.S. Tax Cuts and Jobs Act from accumulated other comprehensive income to retained earnings. We adopted this standard as of December 31, 2018. The adoption of this guidance did not have a material impact on our financial statements. In July 2018, the FASB issued ASU 2018-07, Compensation—Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting, an accounting standard update to improve non-employee share-based payment accounting. The accounting standard update more closely aligns the accounting for employee and non-employee share based payments. The accounting standards update is effective as of the beginning of our 2019 calendar year with early adoption permitted. We adopted this standard as of December 31, 2018. The adoption of this guidance did not have a material impact on our financial statements. Recent Accounting Pronouncements Not Yet Adopted as of June 30, 2019 In June 2016, the FASB issued ASU 2016-13, Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, which, in an effort to provide financial statement users with more decision-useful information about the expected credit losses on financial instruments, replaces the current incurred loss impairment methodology with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. The amendments affect loans, debt securities, trade receivables, net investments in leases, off-balance sheet credit exposures, reinsurance receivables and any other financial assets not excluded from the scope that have the contractual right to receive cash. The provisions of the new guidance will be effective as of the beginning of our 2020 fiscal year. Early adoption is permitted after our 2018 fiscal year. We are currently evaluating the impact of the new guidance on our financial statements and have not yet selected an adoption date. In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework—Changes to the Disclosure Requirements for Fair Value Measurement, new accounting guidance to improve the effectiveness of disclosures related to fair value measurements. The new guidance removes certain disclosure requirements related to transfers between Level 1 and Level 2 of the fair value hierarchy along with the policy for timing of transfers between levels and the valuation processes for Level 3 fair value measurements. Additions to the disclosure requirements include more quantitative information related to significant unobservable inputs used in Level 3 fair value measurements and gains and losses included in other comprehensive income. The new guidance will be effective as of our 2020 fiscal year with early adoption permitted. We are currently evaluating the impact of the new guidance on our financial statements and have not yet selected an adoption date. In August 2018, the FASB issued ASU 2018-14, Compensation—Retirement Benefits—Defined Benefit Plans—General (Subtopic 715-20): Disclosure Framework—Changes to the Disclosure Requirements for Defined Benefit Plans, new accounting guidance to improve the effectiveness of disclosures related to defined benefit plans by eliminating certain required disclosures, clarifying existing disclosures, and adding new disclosures. Changes include removing disclosures related to the amounts in accumulated other comprehensive income expected to be recognized in the next fiscal year, adding narrative disclosure of the reasons for significant gains and losses related to changes in the defined benefit obligation, and clarifying the disclosures required for plans with projected and accumulated benefit obligations in excess of plan assets. The new guidance will be effective as of our 2020 fiscal year with early adoption permitted. We are currently evaluating the impact of the new guidance on our financial statements and have not yet selected an adoption date.

DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION (Policies)

6 Months Ended

Jun. 30, 2019

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Condensed Consolidated Financial Statements

The accompanying unaudited condensed consolidated financial statements of the Company have been prepared in accordance with accounting principles generally accepted in the U.S. (“U.S. GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X of the U.S. Securities and Exchange Commission (“SEC”). Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal and recurring adjustments unless otherwise disclosed) considered necessary for a fair presentation have been included. Operating results for the thirteen and twenty-six weeks ended June 30, 2019 are not necessarily indicative of the results that may be expected for the year ending December 29, 2019. For further information, refer to the consolidated financial statements and notes thereto included in the Company’s annual report on Form 10-K for the year ended December 30, 2018.

The Company operates on a 52/53-week fiscal year that ends on the Sunday falling on or before December 31. The reader should assume any reference we make to a particular year (for example, 2019) in the notes to these Condensed Consolidated Financial Statements applies to our fiscal year and not the calendar year.

The Condensed Consolidated Financial Statements include the accounts of the Company and its majority-owned subsidiaries. We eliminate all significant affiliate accounts and transactions upon consolidation.

The Condensed Consolidated Financial Statements have been prepared in conformity with U.S. GAAP using management’s best estimates and judgments. These estimates and judgments affect the reported amounts of assets and liabilities and disclosure of the contingent assets and liabilities at the date of the financial statements. The estimates and judgments will also affect the reported amounts for certain revenues and expenses during the reporting period. Actual results could differ materially from these estimates and judgments. Significant estimates made by the Company include the allowance for doubtful accounts, reserves related to inventory obsolescence or valuation, useful lives of long-lived assets, goodwill, valuation of deferred tax assets, insurance accruals, valuation of pension and other postretirement benefits obligations, income tax accruals, certain derivative positions and valuations of acquired businesses.

Foreign Currency Transactions and Translations

The functional currency of the Company's U.S. and Mexico operations and certain holding-company subsidiaries in Luxembourg, the U.K. and Ireland is the U.S. dollar. The functional currency of its U.K. operations is the British pound. The functional currency of the Company's operations in France and the Netherlands is the euro. For foreign currency-denominated entities other than the Company's Mexico operations, translation from local currencies into U.S. dollars is performed for most assets and liabilities using the exchange rates in effect as of the balance sheet date. Income and expense accounts are remeasured using average exchange rates for the period. Adjustments resulting from translation of these financial records are reflected as a separate component of Accumulated other comprehensive loss in the Condensed Consolidated Balance Sheets. For the Company's Mexico operations, remeasurement from the Mexican peso to U.S. dollars is performed for monetary assets and liabilities using the exchange rate in effect as of the balance sheet date. Remeasurement is performed for non-monetary assets using the historical

exchange rate in effect on the date of each asset’s acquisition. Income and expense accounts are remeasured using average exchange rates for the period. Net adjustments resulting from remeasurement of these financial records are reflected in Foreign currency transaction losses (gains) in the Condensed Consolidated Statements of Income.

Leases

The Company determines if an arrangement is a lease at inception. Operating leases are included in Operating lease assets, net, Accrued expenses and other current liabilities, and Noncurrent operating lease liabilities, less current maturities, in our Condensed Consolidated Balance Sheet. Finance leases are included in Property, plant and equipment, net, Current portion of long-term debt, and Long-term debt, less current maturities, in our Condensed Consolidated Balance Sheet.

Beginning with the adoption of Accounting Standards Update (“ASU”) 2016-02 on December 31, 2018, operating lease assets and operating lease liabilities are initially recognized based on the present value of the future minimum lease payments over the lease term at commencement date. As most of our leases do not provide an implicit interest rate, we use our incremental borrowing rate based on the information available at commencement date in determining the present value of future payments. The operating lease asset also includes any lease payments made, including upfront costs and prepayments, and excludes lease incentives and initial direct costs incurred. Our lease terms may include options to extend or terminate a lease when it is reasonably certain that we will exercise that option. Leases with an initial term of 12 months or less are not recorded on the balance sheet. Lease expense for minimum lease payments is recognized on a straight-line basis over the lease term with a corresponding reduction to the operating lease asset.

The Company has lease agreements with lease and non-lease components. Beginning in 2019, lease and non-lease components are generally accounted for separately. For certain equipment leases, such as vehicles, we account for the lease and non-lease components as a single lease component.

Restricted Cash

The Company is required to maintain cash balances with a broker as collateral for exchange traded futures contracts. These balances are classified as restricted cash as they are not available for use by the Company to fund daily operations. The balance of restricted cash may also include investments in U.S. Treasury Bills that qualify as cash equivalents, as required by the broker, to offset the obligation to return cash collateral.

Recent Accounting Pronouncements

Recent Accounting Pronouncements Adopted as of June 30, 2019

In February 2016, the Financial Accounting Standards Board (“FASB”) issued ASU 2016-02, Leases (Topic 842), along with several updates, which, in an effort to increase transparency and comparability among organizations utilizing leasing, requires an entity that is a lessee to recognize the assets and liabilities arising from operating leases on the balance sheet. This guidance also requires disclosures about the amount, timing and uncertainty of cash flows arising from leases. In transition, the entity may elect to recognize and measure leases at the beginning of the earliest period presented using a modified retrospective approach or the beginning of the period of adoption using a cumulative-effect adjustment approach. We adopted the new standard on December 31, 2018 and recognized and measured leases at the beginning of the period of adoption. We elected the package of practical expedients available under the transition guidance which, among other things, allows the carry-forward of historical lease classification. The Company also elected the practical expedient allowing use of hindsight in assessing the lease term. We made an accounting policy election to not apply the new guidance to leases with a term of 12 months or less and will recognize those payments in the Condensed Consolidated Statement of Income on a straight-line basis over the lease term. We implemented a system solution for administering our leases and facilitating compliance with the new guidance. Adoption of the standard had a material impact on our Condensed Consolidated Balance Sheet as a result of the increase in assets and liabilities from recognition of operating lease assets and operating lease liabilities. However, the standard did not have a material impact on our Condensed Consolidated Statement of Income.

In August 2017, the FASB issued ASU 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities, an accounting standard update that simplifies the application of hedge accounting guidance in current GAAP and improves the reporting of hedging relationships to better portray the economic results of an entity’s risk management activities in its financial statements. Among the simplification updates, the standard eliminates the requirement in current GAAP to separately recognize periodic hedge ineffectiveness. Mismatches between the changes in value of the hedged item and hedging instrument may still occur but they will no longer be separately reported. The standard requires the presentation of the earnings effect of the hedging instrument in the same income statement line item in which the earnings effect of the hedged item is reported. The standard is effective for annual and interim reporting periods beginning after December 15, 2018, but early adoption is permitted. We have adopted this standard as of December 31, 2018. The adoption of this guidance did not have a material impact on our financial statements.

In February 2018, the FASB issued ASU 2018-02, Income Statement—Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income, an accounting standard update that allows a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the U.S. Tax Cuts and Jobs Act. The Company will not reclassify the stranded tax effects associated with the U.S. Tax Cuts and Jobs Act from accumulated other comprehensive income to retained earnings. We adopted this standard as of December 31, 2018. The adoption of this guidance did not have a material impact on our financial statements.

In July 2018, the FASB issued ASU 2018-07, Compensation—Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting, an accounting standard update to improve non-employee share-based payment accounting. The accounting standard update more closely aligns the accounting for employee and non-employee share based payments. The accounting standards update is effective as of the beginning of our 2019 calendar year with early adoption permitted. We adopted this standard as of December 31, 2018. The adoption of this guidance did not have a material impact on our financial statements.

Recent Accounting Pronouncements Not Yet Adopted as of June 30, 2019

In June 2016, the FASB issued ASU 2016-13, Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, which, in an effort to provide financial statement users with more decision-useful information about the expected credit losses on financial instruments, replaces the current incurred loss impairment methodology with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. The amendments affect loans, debt securities, trade receivables, net investments in leases, off-balance sheet credit exposures, reinsurance receivables and any other financial assets not excluded from the scope that have the contractual right to receive cash. The provisions of the new guidance will be effective as of the beginning of our 2020 fiscal year. Early adoption is permitted after our 2018 fiscal year. We are currently evaluating the impact of the new guidance on our financial statements and have not yet selected an adoption date.

In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework—Changes to the Disclosure Requirements for Fair Value Measurement, new accounting guidance to improve the effectiveness of disclosures related to fair value measurements. The new guidance removes certain disclosure requirements related to transfers between Level 1 and Level 2 of the fair value hierarchy along with the policy for timing of transfers between levels and the valuation processes for Level 3 fair value measurements. Additions to the disclosure requirements include more quantitative information related to significant unobservable inputs used in Level 3 fair value measurements and gains and losses included in other comprehensive income. The new guidance will be effective as of our 2020 fiscal year with early adoption permitted. We are currently evaluating the impact of the new guidance on our financial statements and have not yet selected an adoption date.

In August 2018, the FASB issued ASU 2018-14, Compensation—Retirement Benefits—Defined Benefit Plans—General (Subtopic 715-20): Disclosure Framework—Changes to the Disclosure Requirements for Defined Benefit Plans, new accounting guidance to improve the effectiveness of disclosures related to defined benefit plans by eliminating certain required disclosures, clarifying existing disclosures, and adding new disclosures. Changes include removing disclosures related to the amounts in accumulated other comprehensive income expected to be recognized in the next fiscal year, adding narrative disclosure of the reasons for significant gains and losses related to changes in the defined benefit obligation, and clarifying the disclosures required for plans with projected and accumulated benefit obligations in excess of plan assets. The new guidance will be effective as of our 2020 fiscal year with early adoption permitted. We are currently evaluating the impact of the new guidance on our financial statements and have not yet selected an adoption date.