EMPLOYEE STOCK BENEFIT PLANS (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares approved	25,000,000
Percentage of market price at which executive officers and key employees may be granted options to purchase common stock	100.00%
Term of awards	3 years
Assumptions used to calculate fair value of stock options
Expected volatility (as a percent)	26.90%	26.70%	23.20%
Risk-free interest rate (as a percent)	1.20%	2.60%	2.70%
Dividend yield (as a percent)	1.60%	1.70%	1.80%
Expected life (in years)	6 years	6 years	6 years
Stock option, Shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	1,902,000	1,789,000	1,404,000	997,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures	491,000	558,000	550,000
Exercised (in shares)	(325,000)	(140,000)	(80,000)
Forfeited or expired (in shares)	(53,000)	(33,000)	(63,000)
Vested (in shares)	728,000
Vested and expected to vest (in shares)	1,802,000
Stock option, Weighted Average Exercise Price of Shares
Balance at the beginning of the period (in dollars per share)	$ 42.12	$ 34.36	$ 26.79
Granted (in dollars per share)	$ 78.12	$ 59.18	$ 46.71
Exercised (in dollars per share)	$ 35.60	$ 31.65	$ 26.96
Forfeited or expired (in dollars per share)	$ 57.50	$ 45.03	$ 31.82
Balance at the end of the period (in dollars per share)	$ 52.11	$ 42.12	$ 34.36	$ 26.79
Vested (in dollars per share)	$ 39.89
Vested and expected to vest (in dollars per share)	$ 52.11
Stock option, Average Remaining Contractual Term (in years)
Balance at the end of the period (in years)	7 years 8 months 15 days	8 years 1 month 6 days	8 years 7 months 9 days	9 years 2 months 13 days
Vested (in years)	6 years 10 months 28 days
Vested and expected to vest (in years)	7 years 8 months 15 days
Stock option, Aggregate Intrinsic Value
Outstanding options	$ 99.2	$ 47.6	$ 48.2	$ 26.7
Exercised options	11.6	5.2	2.1
Vested options	29.1
Vested and expected to vest options	93.9
Weighted-Average Grant Date Fair Value (in dollars per share)	$ 17.55	$ 14.73	$ 10.31
Cash proceeds received from options exercised	11.6	4.5	2.2
Tax benefit realized from stock options exercised	4.8	1.8	0.8
Performance Share Awards
Shares Granted and Earned	401,000	273,000	237,000
Weighted-Average Grant- Date Fair Value (in dollars per share)	$ 67.18	$ 57.08	$ 44.38
Shares outstanding at period end	315,000	149,000	82,000
Percentage of plan performance assumed	100.00%
Nonvested restricted stock units, Shares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	514,000	533,000	588,000	662,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	146,000	134,000	150,000
Vested (in shares)	(146,000)	(170,000)	(172,000)
Forfeited (in shares)	(19,000)	(19,000)	(52,000)
Nonvested restricted stock units, Weighted-Average Grant Date Fair Value
Nonvested at the beginning of the period (in dollars per share)	$ 38.09	$ 35.15	$ 34.18
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	$ 76.98	$ 59.40	$ 47.53
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value	$ 32.28	$ 44.44	$ 42.16
Forfeited (in dollars per share)	$ 47.57	$ 40.39	$ 35.37
Nonvested at the end of the period (in dollars per share)	$ 50.24	$ 38.09	$ 35.15	$ 34.18
Allocated Share-based Compensation Expense (pre-tax)	32.2	39.9	19.7
Stock-based compensation expense
Allocated Share-based Compensation Expense (pre-tax)	32.2	39.9	19.7
Net tax benefit related to stock-based compensation expense	(9.8)	(14.1)	(6.8)
Upper limit
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Term of awards	5 years
Percentage payout based on targets met	200.00%
Lower limit
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Term of awards	1 year
Percentage payout based on targets met	0.00%
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Under one of the company's vesting schedules, percentage of stock options exercisable on each of the first through the fourth anniversaries of the grant date	25.00%
Under the second of two vesting schedules, percentage of stock options exercisable on each of the first through the third anniversaries of the grant date	33.00%
Term of awards	10 years
Stock option, Aggregate Intrinsic Value
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized	7.5
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition	1 year 10 months 28 days
Nonvested restricted stock units, Weighted-Average Grant Date Fair Value
Allocated Share-based Compensation Expense (pre-tax)	7.5	5.9	3.8
Stock-based compensation expense
Allocated Share-based Compensation Expense (pre-tax)	7.5	5.9	3.8
Performance share awards
Stock option, Aggregate Intrinsic Value
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized	7.3
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition	1 year 4 months 24 days
Nonvested restricted stock units, Weighted-Average Grant Date Fair Value
Allocated Share-based Compensation Expense (pre-tax)	16.1	22.8	5.6
Stock-based compensation expense
Allocated Share-based Compensation Expense (pre-tax)	16.1	22.8	5.6
Restricted stock units
Stock option, Aggregate Intrinsic Value
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized	14.8
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition	2 years 4 months 24 days
Nonvested restricted stock units, Weighted-Average Grant Date Fair Value
Allocated Share-based Compensation Expense (pre-tax)	8.6	11.2	10.3
Stock-based compensation expense
Allocated Share-based Compensation Expense (pre-tax)	$ 8.6	$ 11.2	$ 10.3

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The number of grants made and earned 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 of outstanding 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 percentage of market price at which options are granted to purchase common stock.

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Under the second of two vesting schedules, represents the percentage of stock options exercisable in installments on each of the first through the third anniversaries of the grant date.

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Represents the percentage payout to employees dependent upon meeting the targets during the period.

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Aggregate proceeds received by the entity during the annual period from exercises of stock or unit options and conversion of similar instruments granted under equity-based payment arrangements.

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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 equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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

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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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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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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.

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

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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The total accumulated difference between fair values of underlying shares on dates of exercise and exercise price on options which were exercised (or share units converted) into shares during the reporting period under the plan.

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For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.

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Weighted average price of options that were either forfeited or expired.

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Net number of share options (or share units) granted during the period.

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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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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of options outstanding.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise prices of fully vested and expected to vest options outstanding.

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As of the balance sheet date, the number of shares into which fully vested and expected to vest stock options outstanding can be converted under the option plan.

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As of the balance sheet date, the weighted-average exercise price for outstanding stock options that are fully vested or expected to vest.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Number of share options (or share units) exercised during the current period.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

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Tax benefits realized from the exercise of stock options resulting in reductions in the entity's income taxes, which increases net cash provided by operating activities.

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