A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible.

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A valuation allowance relating to a written agreement to receive money (at a specified future date(s) within one year from the reporting date (or the normal operating cycle, whichever is longer), consisting of principal as well as any accrued interest) for the portion that is expected to be uncollectible.

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Amount of receivables due from an entity that is affiliated with the reporting entity by means of direct or indirect ownership, due within 1 year (or 1 business cycle).

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This item represents an other than temporary decline in value that has been recognized against an investment accounted for under the equity method of accounting. The excess of the carrying amount over the fair value of the investment represents the amount of the write down which is or was reflected in earnings. The written down value is a new cost basis with the adjusted value of the investment becoming its new carrying value subject to the equity accounting method. Evidence of a loss in value might include, but would not necessarily be limited to, absence of an ability to recover the carrying amount of the investment or inability of the investee to sustain an earnings capacity which would justify the carrying amount of the investment.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Total investments in (A) an entity in which the entity has significant influence, but does not have control, (B) subsidiaries that are not required to be consolidated and are accounted for using the equity and or cost method, and (C) an entity in which the reporting entity shares control of the entity with another party or group. Includes long-term advances receivable from a party that is affiliated with the reporting entity by means of direct or indirect ownership.

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Amounts due from parties associated with the reporting entity as evidenced by a written promise to pay, due within 1 year (or 1 business cycle).

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The cash inflow from the collection of money previously advanced to an entity that is related to it but not strictly controlled.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Segment Information-CT&M and Marine (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Apr. 01, 2017	Jul. 01, 2017	Jul. 02, 2016	Dec. 31, 2016
Segment Information
Principal payments received on notes receivable from affiliates		$ 3	$ 6
Total investment in affiliate		824		$ 773
Commodity Trading and Milling
Segment Information
Total investment in affiliate		231		207
Marine
Segment Information
Total investment in affiliate		$ 29		33
Holding company owning interest in Caribbean terminal operation \| Marine
Segment Information
Total investment in affiliate				14
Notes receivable from affiliate				2
Receivable from affiliate				$ 1
Write-down on investment	$ 5
Write down on notes receivable from affiliate	1
Write down on receivable from affiliate	$ 3
Percentage of ownership interest accounted as equity method investment		36.00%