Expiration date for the authorization to repurchase up to $1 billion.

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Number of shares of common stock that were repurchased in the administration of our employee share-based compensation plans. Under the terms of these plans, we accept shares of common stock from option holders if they elect to surrender previously-owned shares upon exercise of the option to cover the exercise price of the options or, in the case of restricted shares of common stock, the withholding of shares to satisfy tax withholding obligations associated with the vesting of such shares.

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Cost of common stock that were repurchased in the administration of our employee share-based compensation plans. Under the terms of these plans, we accept shares of common stock from option holders if they elect to surrender previously-owned shares upon exercise of the option to cover the exercise price of the options or, in the case of restricted shares of common stock, the withholding of shares to satisfy tax withholding obligations associated with the vesting of such shares.

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Equity impact of aggregate cash, stock, and paid-in-kind dividends declared for all securities (common shares, preferred shares, etc.) during the period.

+ References

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-SubTopic 405
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The per share amount of a dividend declared, but not paid, as of the financial reporting date.

+ References

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-SubTopic 10
-Section 50
-Paragraph 3
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The remaining repurchase amount authorized by an entity's Board of Directors under a stock repurchase plan.

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

+ References

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-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 43
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-SubTopic 30
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Description of share repurchase program authorized by an entity's Board of Directors. Include also the allocation of amounts paid to purchase treasury stock.

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Number of shares that have been repurchased during the period and are being held in treasury.

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-Name Regulation S-X (SX)
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-Section 02
-Paragraph 29, 30
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Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

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Stockholders' Equity (Details) (USD $) In Millions, except Per Share data	0 Months Ended		6 Months Ended			1 Months Ended	6 Months Ended	1 Months Ended	6 Months Ended
	Aug. 01, 2011	Jul. 28, 2011	Jun. 30, 2011	Jun. 30, 2010	Apr. 30, 2011	Apr. 30, 2011 $1 Billion Authorization [Member]	Jun. 30, 2011 $1 Billion Authorization [Member]	Apr. 30, 2011 $ 250 Million Dollar Authorization [Member]	Jun. 30, 2011 $ 250 Million Dollar Authorization [Member]	Jun. 30, 2010 $ 250 Million Dollar Authorization [Member]
Cash dividend declared per share					$ 0.25
Dividends paid		$ 41.5
Expiration date of new authorization			June 30, 2013
Shares Repurchased							2.50		0.80	1.03
Value of Shares Repurchased							200.1		52.6	50.0
Shares Repurchased, average price							$ 78.51		$ 63.73	$ 48.76
Share Repurchase Authorization						1000		250
Remaining authorized amount under new authorization	799.9
Common shares acquired in connection with employee stock plans, shares			0.7	0.2
Common shares acquired in connection with employee stock plans, amount			$ 48.1	$ 7.9