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Equity-based compensation - Summary of shares authorized (Details) shares in Thousands | Dec. 31, 2019 shares
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Disclosure of terms and conditions of share-based payment arrangement [line items] |
Number of shares authorized (in shares) | 22,250
Long-term Incentive Plan [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Number of shares authorized (in shares) | 20,000
Deferred Bonus Stock Plan [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Number of shares authorized (in shares) | 1,500
Swiss Employee Share Ownership Plan [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Number of shares authorized (in shares) | 475
Other share savings plans [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Number of shares authorized (in shares) | 275

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- Definition The number of shares authorised. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 79 -Subparagraph a -Clause i -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_79_a_i&doctype=Standard -URIDate 2019-03-27 + Details
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