CAPITAL STOCK AND STOCK AWARD PLANS - Assumptions Used in Estimating the Fair Value Per Option (Details) - Stock options - $ / shares	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Fair Value Assumptions and Methodology [Abstract]
Weighted-average risk-free interest rate (percent)	3.10%	2.30%	2.10%
Expected dividend yield (percent)	2.00%	2.50%	2.40%
Weighted-average volatility (percent)	25.00%	20.00%	20.00%
Expected term (in years)	6 years 29 days	6 years 2 months 12 days	6 years 3 months 4 days
Weighted average fair value per option (in dollars per share)	$ 20.52	$ 14.23	$ 12.60

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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.

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

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- Definition

Weighted average expected volatility rate of share-based compensation awards.

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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.

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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.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809

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