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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2021
Summary of Significant Accounting Policies |
Schedule of amounts paid for interest and income taxes |
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​ | Years ended December 31, | ​
(Millions of dollars) | 2021 | ​ | 2020 | ​ | 2019 | ​
Interest, net of interest capitalized | $ | 10 | ​ | $ | 16 | ​ | $ | 36 | ​
Income taxes, net of refunds |  | 104 | ​ |  | 55 | ​ |  | 31 | ​
Summary of supplemental cash and non-cash information related to leases |
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​ | ​ | ​ | Twelve months ended | ​
​ | ​ | ​ | December 31, | ​
(Millions of dollars) | ​ | ​ | ​ | 2021 | ​ | ​ | 2020 | ​ | ​ | 2019 | ​
Cash paid for amounts included in the measurement of lease liabilities: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Operating cash flows from operating leases | ​ | ​ | $ | 166 | ​ | $ | 142 | ​ | $ | 137 | ​
Operating cash flows from finance leases | ​ | ​ | ​ | 5 | ​ | ​ | 4 | ​ | ​ | 1 | ​
Financing cash flows from finance leases | ​ | ​ | ​ | 14 | ​ | ​ | 7 | ​ | ​ | 2 | ​
ROU assets obtained in exchange for new lease liabilities: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Operating leases | ​ | ​ | $ | 244 | ​ | $ | 62 | ​ | $ | 95 | ​
Finance leases | ​ | ​ | ​ | 54 | ​ | ​ | 50 | ​ | ​ | 46 | ​
Schedule of accounts receivables |
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​ | ​ | ​ | December 31,
Millions of dollars | ​ | ​ | 2021 |  | 2020
Receivables: | ​ | ​ | ​ | ​ | ​ | ​ | ​
Trade | ​ | $ | 553 | ​ | $ | 381 | ​
Due from affiliates | ​ |  | 128 | ​ |  | 111 | ​
Other | ​ |  | 112 | ​ |  | 68 | ​
Total receivables | ​ |  | 793 | ​ |  | 560 | ​
Allowance for credit losses | ​ |  | (31) | ​ |  | (28) | ​
Net receivables | ​ | $ | 762 | ​ | $ | 532 | ​
Schedule of allowance for credit losses |
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​ |  | Balance at | ​ |  | Transition | ​ |  | ​ | ​ |  | ​ | ​ |  | Balance at |
(Millions of dollars) | ​ | beginning of year | ​ | ​ | Adjustment(a) | ​ | ​ | Provision(b) | ​ | ​ | Net deductions(c) | ​ | ​ | end of year |
Allowance for Credit Losses: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Year Ended December 31, 2021 | ​ | $ | 28 | ​ | ​ | — | ​ | ​ | 5 | ​ |  | (2) | ​ | ​ | $ | 31 | ​
Year Ended December 31, 2020 | ​ | $ | 28 | ​ | ​ | 3 | ​ | ​ | — | ​ |  | (3) | ​ | ​ | $ | 28 | ​
Year Ended December 31, 2019 | ​ | $ | 33 | ​ | ​ | — | ​ | ​ | 5 | ​ |  | (10) | ​ | ​ | $ | 28 | ​
​ (a)Adjustment made upon adoption of new guidance to retained earnings. (b)Provision amounts are charged to selling, general and administrative expenses. (c)Includes write-offs net of recoveries, foreign currency translation adjustments and other adjustments.
Schedule of allowance for notes receivable |
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​ |  | Balance at |  | ​ |  | ​ |  | Balance at |
(Millions of dollars) | ​ | beginning of year | ​ | Provision | ​ | Net deductions | ​ | end of year |
Allowance for Notes Receivable: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Year Ended December 31, 2021 | ​ | $ | 17 |  | 1 |  | — | ​ | $ | 18 | ​
Year Ended December 31, 2020 | ​ | $ | 17 |  | — |  | — | ​ | $ | 17 | ​
Year Ended December 31, 2019 | ​ | $ | 17 |  | — |  | — | ​ | $ | 17 | ​
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Schedule of changes in the carrying amount of goodwill |
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​ | ​ | ​ | Pork | ​ | ​ | CT&M | ​ | ​ | ​
(Millions of dollars) |  | ​ | Segment |  | ​ | Segment | ​ | ​ | Total
Balance as of December 31, 2019 | ​ | $ | 18 | ​ | $ | 146 | ​ | $ | 164
Acquisition | ​ | ​ | — | ​ | ​ | 4 | ​ | ​ | 4
Foreign currency translation | ​ |  | — | ​ |  | (1) | ​ | ​ | (1)
Balance as of December 31, 2020 | ​ | ​ | 18 | ​ | ​ | 149 | ​ | ​ | 167
Impairment | ​ |  | — | ​ |  | (4) | ​ | ​ | (4)
Balance as of December 31, 2021 | ​ | $ | 18 | ​ | $ | 145 | ​ | $ | 163
Schedule of gross carrying amount and accumulated amortization for finite-lived intangibles |
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​ | ​ | December 31, 2021 | ​ | ​ | December 31, 2020 | ​
​ | ​ | Customer | ​ | Trade | ​ | ​ | ​ | ​ | Customer | ​ | Trade | ​ | ​ | ​
(Millions of dollars) | ​ | relationships | ​ | names | ​ | Total | ​ | ​ | relationships | ​ | names | ​ | Total | ​
Gross carrying amount | $ | 51 | $ | 28 | $ | 79 | ​ | $ | 51 | $ | 28 | $ | 79 | ​
Accumulated amortization and currency translation | ​ | (22) | ​ | (12) | ​ | (34) | ​ | ​ | (16) | ​ | (9) | ​ | (25) | ​
Net carrying amount | $ | 29 | $ | 16 | $ | 45 | ​ | $ | 35 | $ | 19 | $ | 54 | ​
Schedule of changes in the asset retirement obligation |
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​ | ​ | Years ended December 31,
(Millions of dollars) |  | 2021 |  | 2020
Beginning balance | ​ | $ | 27 | ​ | $ | 25
Accretion expense | ​ |  | 1 | ​ |  | 2
Liability for additional lagoons | ​ |  | 1 | ​ |  | —
Ending balance | ​ | $ | 29 | ​ | $ | 27

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