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RELATED PARTY DISCLOSURES (Tables) | 12 Months Ended
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Dec. 31, 2020
RELATED PARTY DISCLOSURES |
Summary of significant related party transactions |
($ millions) |  | 2020 |  | 2019 |
Sales(1) |  | 458 |  | 676 |
Purchases |  | 130 |  | 215 |
Accounts receivable |  | 26 |  | 38 |
Accounts payable and accrued liabilities |  | 16 |  | 19 |
(1) | Includes sales to Parachem Chemicals Inc. of $173 million (2019 – $269 million).
Schedule of compensation of Key Management Personnel |
($ millions) |  | 2020 |  | 2019 |
Salaries and other short-term benefits |  | 9 |  | 14 |
Pension and other post-retirement benefits |  | 3 |  | 3 |
Share-based compensation |  | (9 | ) | 47 |
|  | 3 |  | 64 |

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