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Equity-based participation plans for associates (Details 4) - Select North America Pure in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2020 $ / shares | Dec. 31, 2019 $ / shares | Dec. 31, 2020 $ / shares | Dec. 31, 2019 $ / shares
Disclosure of number and weighted average exercise prices of share options [roll forward] |  |  |  |
Number of share options outstanding at beginning of period | 9.6 | 15.2 |  |
Weighted average exercise price of share options outstanding in share-based payment arrangement at beginning of period | $ 61.9 | $ 60.7 |  |
Number of share options exercised or sold | (2.9) | (5.6) |  |
Weighted average exercise price of share options exercised in share-based payment arrangement | $ 59.6 | $ 58.6 |  |
Number of share options outstanding at end of period | 6.7 | 9.6 |  |
Weighted average exercise price of share options outstanding in share-based payment arrangement at end of period | $ 62.9 | $ 61.9 |  |
Number of share options exercisable |  |  | 6.7 | 9.6
Weighted average exercise price of share options exercisable in share-based payment arrangement |  |  | $ 62.9 | $ 61.9
Disclosure of number and weighted average remaining contractual life of outstanding share options [abstract] |  |  |  |
Number of share options outstanding in share-based payment arrangement | 9.6 | 9.6 | 6.7 | 9.6
Weighted average remaining contractual life of outstanding share options | 1 year 6 months 1 day |  |  |
Weighted average exercise price of share options outstanding in share-based payment arrangement | $ 61.9 | $ 61.9 | $ 62.9 | $ 61.9
Weighted average share price for share options in share-based payment arrangement exercised during period at date of exercise | $ 92.2 |  |  |
57.0 |  |  |  |
Disclosure of number and weighted average exercise prices of share options [roll forward] |  |  |  |
Number of share options outstanding at end of period | 0.4 |  |  |
Disclosure of number and weighted average remaining contractual life of outstanding share options [abstract] |  |  |  |
Number of share options outstanding in share-based payment arrangement | 0.4 |  | 0.4 |
Weighted average remaining contractual life of outstanding share options | 0 years |  |  |
Exercise price of outstanding share options |  |  | $ 57.0 |
57.6 |  |  |  |
Disclosure of number and weighted average exercise prices of share options [roll forward] |  |  |  |
Number of share options outstanding at end of period | 2.3 |  |  |
Disclosure of number and weighted average remaining contractual life of outstanding share options [abstract] |  |  |  |
Number of share options outstanding in share-based payment arrangement | 2.3 |  | 2.3 |
Weighted average remaining contractual life of outstanding share options | 1 year |  |  |
Exercise price of outstanding share options |  |  | $ 58.3 |
66.0 |  |  |  |
Disclosure of number and weighted average exercise prices of share options [roll forward] |  |  |  |
Number of share options outstanding at end of period | 4.0 |  |  |
Disclosure of number and weighted average remaining contractual life of outstanding share options [abstract] |  |  |  |
Number of share options outstanding in share-based payment arrangement | 4.0 |  | 4.0 |
Weighted average remaining contractual life of outstanding share options | 2 years |  |  |
Exercise price of outstanding share options |  |  | $ 66.1 |

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