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Inventories (Details) - USD ($) $ / shares in Units, $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
At lower of LIFO cost or market: |  |  |
Live hogs and materials | $ 313 | $ 273 |
Fresh pork and materials | 28 | 34 |
Inventories at lower of LIFO cost or market, Gross | 341 | 307 |
LIFO adjustment | (31) | (21) |
Total inventories at lower of LIFO cost or market | 310 | 286 |
At lower of FIFO cost and net realizable value: |  |  |
Grains, oilseeds and other commodities | 253 | 279 |
Sugar produced and in process | 38 | 30 |
Other | 90 | 62 |
Total inventories at lower of FIFO cost and net realizable value | 381 | 371 |
Grain, flour and feed at lower of weighted average cost and net realizable value | 89 | 105 |
Total inventories | 780 | 762 |
LIFO method increase (decrease) in earnings | $ (6) | $ 5 | $ 5
LIFO method increase (decrease) in earnings per share (in dollars per share) | $ (5.40) | $ 3.92 | $ 4.39
Amount that inventories would have been higher by if the FIFO method had been used | $ 31 | $ 21 |

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- Definition Carrying amount of fresh pork and materials, net of valuation reserve and adjustment and before LIFO adjustment, as of the balance sheet date. + References No definition available. + Details
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- Definition Carrying amount, net of valuation reserve and adjustment, as of the balance sheet date of grains and oilseeds. + References No definition available. + Details
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- Definition Represents the increase (decrease) in net earnings per share due to the effect of LIFO inventory method. + References No definition available. + Details
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- Definition Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date, of live hogs and materials, before LIFO adjustment. + References No definition available. + Details
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- Definition Carrying amount, net of valuation reserve and adjustment, as of the balance sheet date of sugar produced and in process. + References No definition available. + Details
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- Definition The excess of replacement or current cost over the stated LIFO (last in first out) inventory value when the LIFO inventory method is utilized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.6(c)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The amount of FIFO (first in first out) inventory present at the reporting date when inventory is also valued using different valuation methods. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6361739&loc=d3e7789-107766 + Details
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