Earnings Per Share.

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The exercise price of each class of warrants or rights outstanding.

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The specified number of securities that each class of warrants or rights outstanding give the holder the right but not the obligation to purchase from the issuer at a specific price, on or before a certain date.

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- Definition

Aggregate dividends paid during the period for each share of common stock outstanding.

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- Definition

Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of call options and warrants using the treasury stock method.

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

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- Definition

The cash outflow from the distribution of an entity's earnings in the form of dividends to common shareholders.

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- Definition

The weighted average price as of the beginning of the year at which grantees can acquire the shares reserved for issuance under the stock option plan.

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- Definition

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

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

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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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Earnings Per Share, Textuals (Details) (USD $) In Millions, except Share data	1 Months Ended	3 Months Ended	9 Months Ended
	Jun. 30, 2008	Mar. 31, 2010	Sep. 30, 2011	Sep. 30, 2010
Earnings Per Share (Textuals)
Options outstanding to purchase common shares			20,791
Average exercise price per share			$ 80.01
Potential dilutive effect of shares underlying the options			0
Number of common shares underlying the Warrants outstanding			3,600,000
Average Exercise price of common shares underlying warrants			$ 61.36
Potential dilutive effect of shares underlying the Warrants			0
Payment of cash dividends to stockholders			$ 14.1	$ 14.3
Cash dividend paid per share			$ 0.72	$ 0.72
Amount authorized by Board to be repurchased	75.0
Common stock available for repurchase			46.9
Common stock repurchased, shares		1,151,900
Cost of common stock repurchased		$ 44.2