New Accounting Standards	3 Months Ended
Mar. 31, 2018
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
New Accounting Pronouncements and Changes in Accounting Principles [Text Block]	New Accounting Standards Effective January 1, 2018, the Company adopted the amended guidance of ASC Subtopic 825-10, Financial Instruments - Overall, which is intended to improve the recognition and measurement of financial instruments. The amended guidance requires an entity to measure equity investments, except those accounted for under the equity method of accounting or those that result in consolidation of the investee, at fair value with changes in fair value recognized in net income and simplifies the impairment assessment of equity investments without readily determinable fair values by using a qualitative assessment to identify impairment. The adoption of this amended guidance did not have a significant impact on the Company’s financial results. Effective January 1, 2018, the Company adopted the new guidance of ASC Topic 606, Revenue from Contracts with Customers (Topic 606), for all contracts that had not been completed as of the adoption date (the modified retrospective approach). Topic 606 requires the Company to recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The new guidance requires the Company to apply the following steps: (1) identify the contract with a customer; (2) identify the performance obligations in the contract; (3) determine the transaction price; (4) allocate the transaction price to the performance obligations in the contract; and (5) recognize revenue when, or as, the Company satisfies a performance obligation. Many of the Company’s forward commodity sales contracts are considered physically settled derivatives under ASC Topic 815, Derivatives and Hedging (Topic 815), and are therefore excluded from the scope of Topic 606. Comparative balance sheet and income statement information has not been restated and continues to be reported under the guidance of ASC 605, Revenue Recognition (Topic 605), that was in effect as of December 31, 2017 and in the quarter ended March 31, 2017. The cumulative effect of initially applying the guidance as an adjustment to the opening reinvested earnings balance at January 1, 2018 was less than $1 million. For more information about the adoption of Topic 606, see Note 4. Effective January 1, 2018, the Company adopted the amended guidance of ASC 230, Statement of Cash Flows (Topic 230), which provides guidance on the application of the predominance principle and the presentation and classification of specific cash flow issues including a requirement to classify consideration received for beneficial interest obtained for selling trade receivables as investing instead of operating activities. The adoption of the amended guidance on the Company’s accounts receivable securitization programs resulted in expanded disclosures and a reclassification of cash inflows from operating activities to investing activities (see Note 1 for reclassification amounts). The adoption of amendments related to the other cash flow issues did not have a significant impact on the Company's consolidated statement of cash flows. Effective January 1, 2018, the Company adopted the amended guidance of ASC Topic 715, Compensation - Retirement Benefits, which requires that an employer report the service cost component in the same line or items as other compensation costs arising from services rendered by the pertinent employees during the period. The other components of net benefit cost are required to be presented in the income statement separately from the service cost component and outside a subtotal of income from operations, if one is presented. The adoption of this amended guidance requires expanded disclosures and the reclassification of the other components of net benefit cost from cost of products sold and selling, general, and administrative expenses to other (income) expense - net in the Company’s consolidated statements of earnings but did not impact financial results (see Note 1 for reclassification amounts).

New Accounting Standards

Effective January 1, 2018, the Company adopted the amended guidance of ASC Subtopic 825-10, Financial Instruments - Overall, which is intended to improve the recognition and measurement of financial instruments. The amended guidance requires an entity to measure equity investments, except those accounted for under the equity method of accounting or those that result in consolidation of the investee, at fair value with changes in fair value recognized in net income and simplifies the impairment assessment of equity investments without readily determinable fair values by using a qualitative assessment to identify impairment. The adoption of this amended guidance did not have a significant impact on the Company’s financial results.

Effective January 1, 2018, the Company adopted the new guidance of ASC Topic 606, Revenue from Contracts with Customers (Topic 606), for all contracts that had not been completed as of the adoption date (the modified retrospective approach). Topic 606 requires the Company to recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The new guidance requires the Company to apply the following steps: (1) identify the contract with a customer; (2) identify the performance obligations in the contract; (3) determine the transaction price; (4) allocate the transaction price to the performance obligations in the contract; and (5) recognize revenue when, or as, the Company satisfies a performance obligation. Many of the Company’s forward commodity sales contracts are considered physically settled derivatives under ASC Topic 815, Derivatives and Hedging (Topic 815), and are therefore excluded from the scope of Topic 606. Comparative balance sheet and income statement information has not been restated and continues to be reported under the guidance of ASC 605, Revenue Recognition (Topic 605), that was in effect as of December 31, 2017 and in the quarter ended March 31, 2017. The cumulative effect of initially applying the guidance as an adjustment to the opening reinvested earnings balance at January 1, 2018 was less than $1 million. For more information about the adoption of Topic 606, see Note 4.

Effective January 1, 2018, the Company adopted the amended guidance of ASC 230, Statement of Cash Flows (Topic 230), which provides guidance on the application of the predominance principle and the presentation and classification of specific cash flow issues including a requirement to classify consideration received for beneficial interest obtained for selling trade receivables as investing instead of operating activities. The adoption of the amended guidance on the Company’s accounts receivable securitization programs resulted in expanded disclosures and a reclassification of cash inflows from operating activities to investing activities (see Note 1 for reclassification amounts). The adoption of amendments related to the other cash flow issues did not have a significant impact on the Company's consolidated statement of cash flows.

Effective January 1, 2018, the Company adopted the amended guidance of ASC Topic 715, Compensation - Retirement Benefits, which requires that an employer report the service cost component in the same line or items as other compensation costs arising from services rendered by the pertinent employees during the period. The other components of net benefit cost are required to be presented in the income statement separately from the service cost component and outside a subtotal of income from operations, if one is presented. The adoption of this amended guidance requires expanded disclosures and the reclassification of the other components of net benefit cost from cost of products sold and selling, general, and administrative expenses to other (income) expense - net in the Company’s consolidated statements of earnings but did not impact financial results (see Note 1 for reclassification amounts).