STOCK-BASED COMPENSATION - Assumptions Used to Estimate Fair Value of Stock Options Granted (Details) - $ / shares |
12 Months Ended | ||
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Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
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| Disclosure of Compensation Related Costs, Share-based Payments [Abstract] | |||
| Dividend yield | 1.20% | 1.90% | 1.20% |
| Expected volatility | 21.80% | 22.80% | 19.40% |
| Risk-free interest rate | 2.70% | 1.10% | 1.20% |
| Expected term (in years) | 4 years 10 months | 4 years 9 months 18 days | 4 years 9 months 18 days |
| Weighted-average fair value of stock options granted (in dollars per share) | $ 24.34 | $ 22.20 | $ 20.62 |
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- References 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://fasb.org/us-gaap/role/ref/legacyRef
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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://fasb.org/us-gaap/role/ref/legacyRef
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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://fasb.org/us-gaap/role/ref/legacyRef
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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://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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