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Acquisitions (Details) $ / shares in Units, $ in Millions |  |  |  | 4 Months Ended | 6 Months Ended | 11 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Oct. 28, 2016 USD ($) | Sep. 01, 2016 USD ($) | Feb. 07, 2016 USD ($) | Dec. 31, 2016 USD ($) | Dec. 31, 2016 USD ($) item | Dec. 31, 2016 USD ($) | Dec. 31, 2016 USD ($) item $ / shares | Dec. 31, 2015 USD ($) $ / shares | Dec. 31, 2014 USD ($) $ / shares | Oct. 27, 2016 | Sep. 27, 2014 | Dec. 31, 2007 USD ($)
Acquisitions |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  |  |  | $ 19 | $ 19 | $ 19 | $ 19 | $ 12 |  |  |  |
Net sales |  |  |  |  |  |  | 5,379 | 5,594 | $ 6,473 |  |  |
Net earnings |  |  |  |  |  |  | $ 314 | $ 172 | $ 368 |  |  |
Earnings per common share | $ / shares |  |  |  |  |  |  | $ 266.50 | $ 146.44 | $ 311.44 |  |  |
Maximum |  |  |  |  |  |  |  |  |  |  |  |
Acquisitions |  |  |  |  |  |  |  |  |  |  |  |
Time lag for reporting financial information |  |  |  |  |  |  | 3 months |  |  |  |  |
Belarina |  |  |  |  |  |  |  |  |  |  |  |
Acquisitions |  |  |  |  |  |  |  |  |  |  |  |
Acquisition of business, cash consideration | $ 0 |  |  |  |  |  |  |  |  |  |  |
Pork |  |  |  |  |  |  |  |  |  |  |  |
Acquisitions |  |  |  |  |  |  |  |  |  |  |  |
Acquisition of business, cash consideration |  |  |  |  |  |  | $ 219 |  |  |  |  |
Number of acquisitions | item |  |  |  |  |  |  | 5 |  |  |  |  |
Goodwill |  |  |  |  |  |  |  |  |  |  |  | $ 12
Percentage of ownership |  |  |  | 50.00% | 50.00% | 50.00% | 50.00% |  |  |  | 50.00% |
Pork | Texas Farm LLC, Christensen Farms and three additional acquisitions |  |  |  |  |  |  |  |  |  |  |  |
Acquisitions |  |  |  |  |  |  |  |  |  |  |  |
Number of acquisitions | item |  |  |  |  |  |  | 5 |  |  |  |  |
Net sales |  |  |  |  |  |  | $ 5,455 | $ 5,866 |  |  |  |
Net earnings |  |  |  |  |  |  | $ 303 | $ 145 |  |  |  |
Earnings per common share | $ / shares |  |  |  |  |  |  | $ 257.10 | $ 123.37 |  |  |  |
Pork | Texas Farm LLC |  |  |  |  |  |  |  |  |  |  |  |
Acquisitions |  |  |  |  |  |  |  |  |  |  |  |
Acquisition of business, cash consideration |  | $ 59 |  |  |  |  |  |  |  |  |  |
Inventories |  | 16 |  |  |  |  |  |  |  |  |  |
Property, plant and equipment |  | 42 |  |  |  |  |  |  |  |  |  |
Goodwill |  | 3 |  |  |  |  |  |  |  |  |  |
Accounts payable |  | (2) |  |  |  |  |  |  |  |  |  |
Total |  | 59 |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  | $ 4 |  |  |  |  |  |  |  |
Net earnings |  |  |  | 2 |  |  |  |  |  |  |  |
Pork | Texas Farm LLC | Maximum |  |  |  |  |  |  |  |  |  |  |  |
Acquisitions |  |  |  |  |  |  |  |  |  |  |  |
Acquisition costs |  | $ 1 |  |  |  |  |  |  |  |  |  |
Pork | Christensen Farms |  |  |  |  |  |  |  |  |  |  |  |
Acquisitions |  |  |  |  |  |  |  |  |  |  |  |
Acquisition of business, cash consideration |  |  | $ 148 |  |  |  |  |  |  |  |  |
Inventories |  |  | 33 |  |  |  |  |  |  |  |  |
Property, plant and equipment |  |  | 111 |  |  |  |  |  |  |  |  |
Intangible assets |  |  | 1 |  |  |  |  |  |  |  |  |
Goodwill |  |  | 3 |  |  |  |  |  |  |  |  |
Total |  |  | 148 |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  | $ 119 |  |  |  |  |  |
Net earnings |  |  |  |  |  | (5) |  |  |  |  |  |
Pork | Christensen Farms | Maximum |  |  |  |  |  |  |  |  |  |  |  |
Acquisitions |  |  |  |  |  |  |  |  |  |  |  |
Acquisition costs |  |  | $ 1 |  |  |  |  |  |  |  |  |
Pork | Christensen Farms | Customer relationships |  |  |  |  |  |  |  |  |  |  |  |
Acquisitions |  |  |  |  |  |  |  |  |  |  |  |
Weighted average useful life (in years) |  |  | 1 year 7 months 6 days |  |  |  |  |  |  |  |  |
Pork | Additional acquisitions |  |  |  |  |  |  |  |  |  |  |  |
Acquisitions |  |  |  |  |  |  |  |  |  |  |  |
Acquisition of business, cash consideration |  |  |  |  | $ 12 |  |  |  |  |  |  |
Number of acquisitions | item |  |  |  |  | 3 |  |  |  |  |  |  |
Inventories |  |  |  | 1 | $ 1 | 1 | $ 1 |  |  |  |  |
Property, plant and equipment |  |  |  | 11 | 11 | 11 | 11 |  |  |  |  |
Intangible assets |  |  |  | $ 0 | 0 | $ 0 | $ 0 |  |  |  |  |
Pork | Additional acquisitions | Maximum |  |  |  |  |  |  |  |  |  |  |  |
Acquisitions |  |  |  |  |  |  |  |  |  |  |  |
Acquisition costs |  |  |  |  | $ 1 |  |  |  |  |  |  |
Commodity Trading and Milling | Belarina |  |  |  |  |  |  |  |  |  |  |  |
Acquisitions |  |  |  |  |  |  |  |  |  |  |  |
Acquisition of business, cash consideration | 0 |  |  |  |  |  |  |  |  |  |  |
Accounts receivable | 7 |  |  |  |  |  |  |  |  |  |  |
Inventories | 6 |  |  |  |  |  |  |  |  |  |  |
Property, plant and equipment | 25 |  |  |  |  |  |  |  |  |  |  |
Other assets | 4 |  |  |  |  |  |  |  |  |  |  |
Goodwill | 1 |  |  |  |  |  |  |  |  |  |  |
Third-party debt | (14) |  |  |  |  |  |  |  |  |  |  |
Other liabilities | (11) |  |  |  |  |  |  |  |  |  |  |
Total | 18 |  |  |  |  |  |  |  |  |  |  |
Fair value of pre-existing interest | 18 |  |  |  |  |  |  |  |  |  |  |
Net sales | $ 0 |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership |  |  |  |  |  |  |  |  |  | 50.00% |  |
Voting equity ownership percentage | 98.00% |  |  |  |  |  |  |  |  |  |  |
Time lag for reporting financial information | 3 months |  |  |  |  |  |  |  |  |  |  |
Commodity Trading and Milling | Belarina | Selling, general and administrative expenses |  |  |  |  |  |  |  |  |  |  |  |
Acquisitions |  |  |  |  |  |  |  |  |  |  |  |
Gain related to recognizing the fair value of pre-existing affiliate receivables | $ 4 |  |  |  |  |  |  |  |  |  |  |

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