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Stockholders' Equity (Details) - USD ($) $ / shares in Units, $ in Millions					3 Months Ended		9 Months Ended		12 Months Ended
	Oct. 15, 2015	Aug. 27, 2015	Feb. 26, 2015	May. 15, 2013	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014	Jul. 21, 2015
Common stock dividends paid							$ 147.3	$ 118.0
Dividends declared per common share		$ 0.55	$ 0.55		$ 0.55	$ 0.40	$ 1.65	$ 1.20
Repurchases of common stock							$ 98.1	$ 0.0
Shares of common stock repurchased							1,412,394
Stock Repurchase Program, Authorized Amount										$ 150.0
Remaining authorized amount for share repurchases										$ 205.0
Subsequent Event
Common stock dividends paid	$ 53.6
Annual Dividend
Dividends declared per common share				$ 1.60					$ 2.20

X

- Definition

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

+ References

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-Publisher FASB



-Name Accounting Standards Codification



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-SubTopic 10



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The cash outflow to reacquire common stock during the period.

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Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity.

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Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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