Stock-based compensation - Schedule of Stock Option Assumptions (Details) - Stock options - $ / shares |
12 Months Ended | ||
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Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Closing price of our common stock on grant date (in usd per share) | $ 270.44 | $ 300.30 | $ 235.97 |
| Volatility | 27.80% | 26.90% | 23.30% |
| Expected life (in years) | 5 years 8 months 12 days | 5 years 8 months 12 days | 5 years 8 months 12 days |
| Risk-free interest rate | 4.00% | 4.40% | 3.40% |
| Expected dividend yield | 3.20% | 3.20% | 3.50% |
| Fair value of stock options granted (in usd per share) | $ 62.76 | $ 69.34 | $ 41.86 |
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- Definition The closing price of our common stock on grant date used to estimate the grant date fair value of our stock-based compensation. No definition available.
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- Definition The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The risk-free interest rate assumption that is used in valuing an option on its own shares. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Details
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