STOCK-BASED COMPENSATION (Details 3) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Performance Stock Rights
Assumptions incorporated into the valuation models
Risk-free interest rate minimum (as a percent)	0.13%	0.17%	0.00%
Risk-free interest rate maximum (as a percent)	1.27%	1.27%	1.27%
Expected volatility minimum (as a percent)	15.00%	14.00%	21.00%
Expected volatility maximum (as a percent)	36.00%	36.00%	36.00%
Performance Stock Rights | Minimum
Assumptions incorporated into the valuation models
Expected dividend yield (as a percent)	5.28%	5.18%	5.28%
Performance Stock Rights | Maximum
Assumptions incorporated into the valuation models
Expected dividend yield (as a percent)	5.34%	5.34%	5.34%
Performance Stock Rights Accounted for as Equity Awards
Equity Instruments Other Than Options Roll Forward
Outstanding at the beginning of the period (in shares)	4,908
Granted (in shares)	1,374
Award modifications (in shares)	2,601
Distributed (in shares)	(4,318)
Adjustment for final payout (in shares)	996
Outstanding at the end of the period (in shares)	5,561	4,908
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	$ 49.21
Award modifications (in dollars per share)	$ 39.80
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)	$ 45.16	$ 66.95
Performance Stock Rights Accounted for as Liability Awards
Equity Instruments Other Than Options Roll Forward
Outstanding at the beginning of the period (in shares)	6,774
Granted (in shares)	5,489
Award modifications (in shares)	(2,601)
Distributed (in shares)	(573)
Adjustment for final payout (in shares)	133
Outstanding at the end of the period (in shares)	9,222
Weighted-Average Fair Value
Outstanding at the end of the period, fair value as of the reporting date (in dollars per shares)	$ 30.17
Restricted Share Units
Equity Instruments Other Than Options Roll Forward
Outstanding at the beginning of the period (in shares)	67,954
Granted (in shares)	23,055
Dividend equivalents (in shares)	3,133
Vested and released (in shares)	(28,079)
Transfers (in shares)	1,678
Outstanding at the end of the period (in shares)	67,741	67,954
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	$ 49.40
Dividend equivalents (in dollars per shares)	$ 52.03
Vested and released (in dollars per shares)	$ 46.20
Transfers (in dollars per share)	$ 52.86
Outstanding at the end of the period (in dollars per share)	$ 52.06	$ 48.26
Additional Disclosures
Compensation cost not yet recognized	$ 1.2
Weighted-average period over which compensation cost is to be recognized	2 years 2 months
Restricted Shares and Restricted Share Units
Intrinsic Value
Total intrinsic value of awards vested and released	$ 1.6	$ 1.5	$ 1.0