STOCK REPURCHASES (DETAILS) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended	12 Months Ended
Mar. 31, 2012	Dec. 31, 2011
Notes To Consolidated Financial Statement Abstract
Stock Repurchase Program Authorized Amount	$ 200
Treasury Stock Acquired Number Of Shares		4,438,233
Treasury Stock Acquired Average Cost Per Share		$ 33.82
Stock Repurchase Program Remaining Authorized Repurchase Amount	$ 49.9

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- Definition

The amount authorized by an entity's Board of Directors under a stock repurchase plan.

+ References

No definition available.

+ Details

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- Definition

The remaining repurchase amount authorized by an entity's Board of Directors under a stock repurchase plan.

+ References

No definition available.

+ Details

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- Definition

The number of treasury shares repurchased during the period.

+ References

No definition available.

+ Details

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- Definition

Total cost of shares repurchased divided by the total number of shares repurchased.

+ References

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

-Publisher AICPA

-Name Accounting Research Bulletin (ARB)

-Number 43

-Chapter 1

-Section B

-Paragraph 7

-Subparagraph b

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