STOCK-BASED COMPENSATION (Details 3) (USD $) In Millions, except Share data, unless otherwise specified	6 Months Ended
Jun. 30, 2013	Jun. 30, 2012
Performance Stock Rights \| Maximum
Assumptions used in the valuation of the outstanding grants
Period of historical volatility used to estimate expected volatility	3 years
Risk-free interest rate maximum (as a percent)	1.27%
Expected dividend yield (as a percent)	5.34%
Expected volatility maximum (as a percent)	36.00%
Performance Stock Rights \| Minimum
Assumptions used in the valuation of the outstanding grants
Period of historical volatility used to estimate expected volatility	2 years
Risk-free interest rate minimum (as a percent)	0.26%
Expected dividend yield (as a percent)	5.18%
Expected volatility minimum (as a percent)	19.00%
Performance Stock Rights Accounted for as Equity Awards
Performance Stock Rights and Restricted Share Units Activity
Outstanding at the beginning of the period (in shares)	4,908
Granted (in shares)	1,374
Distributed (in shares)	(4,318)
Adjustment for final payout (in shares)	996
Outstanding at the end of the period (in shares)	2,960
Weighted-Average Fair Value
Outstanding at the beginning of the period (in dollars per share)	$ 66.95
Granted (in dollars per share)	$ 48.50	$ 52.70
Distributed (in dollars per share)	$ 74.53
Adjustment for final payout (in dollars per share)	$ 74.53
Outstanding at the end of the period (in dollars per share)	$ 49.87
Performance Stock Rights Accounted for as Liability Awards
Performance Stock Rights and Restricted Share Units Activity
Outstanding at the beginning of the period (in shares)	6,774
Granted (in shares)	5,489
Distributed (in shares)	(573)
Adjustment for final payout (in shares)	133
Outstanding at the end of the period (in shares)	11,823
Weighted-Average Fair Value
Outstanding at the end of the period, fair value as of the reporting date (in dollars per shares)	$ 47.24
Restricted share units
Performance Stock Rights and Restricted Share Units Activity
Outstanding at the beginning of the period (in shares)	67,954
Granted (in shares)	23,055
Dividend equivalents (in shares)	1,521
Vested and released (in shares)	(28,079)
Outstanding at the end of the period (in shares)	64,451
Weighted-Average Fair Value
Outstanding at the beginning of the period (in dollars per share)	$ 48.26
Granted (in dollars per share)	$ 56.05	$ 53.24
Dividend equivalents (in dollars per shares)	$ 52.01
Vested and released (in dollars per shares)	$ 46.20
Outstanding at the end of the period (in dollars per share)	$ 52.04
Intrinsic Value
Total intrinsic value of awards vested and released	$ 1.6	$ 1.5
Additional Disclosures
Compensation cost not yet recognized	$ 1.7
Weighted-average period over which compensation cost is to be recognized	2 years 5 months

As of the balance sheet date, the aggregate unrecognized cost of equity-based awards made to employees under equity-based compensation awards that have yet to vest.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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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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The estimated measure of the maximum 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.

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No definition available.

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The estimated measure of the minimum 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.

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No definition available.

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

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No definition available.

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

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No definition available.

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Represents the number of shares (or other type of equity) adjusted for to reflect that actual payout during the period on other than stock (or unit) option plans.

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No definition available.

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Weighted-average fair value as of the grant date of equity-based awards other than stock (unit) options for which adjustment for final payout was made as per the agreement made under the plan.

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No definition available.

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Represents the weighted-average fair value as of the grant date of equity-based awards other than stock (unit) options that are dividend equivalents.

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No definition available.

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Represents the number of shares (or other type of equity) distributed during the period on other than stock (or unit) option plans.

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No definition available.

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Weighted-average fair value as of the grant date of equity-based awards other than stock (unit) options that were distributed during the period as per the agreement made under the plan.

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No definition available.

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Represents the number of dividend equivalents earned on equity-based payment instruments, excluding stock (or unit) options.

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No definition available.

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The weighted average fair value as of the reporting date of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

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Represents the total intrinsic value of equity-based payment equity instruments, excluding stock (or unit) options that vested and were released during the reporting period as calculated by applying the disclosed pricing methodology.

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No definition available.

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Represents the number of years used in estimating the expected stock price volatility during the reporting period.

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