Earnings Per Share

3 Months Ended

Mar. 31, 2013

Earnings Per Share [Abstract]

EARNINGS PER SHARE

EARNINGS PER SHARE

The following table sets forth the numerators and denominators used in the computation of basic and diluted earnings per share. Options to purchase 5.6 million and 8.7 million shares of common stock were excluded from the computation of diluted earnings per share for the fiscal 2013 and fiscal 2012 periods, respectively, because the exercise price of the options was greater than the average market price of the common shares and, therefore, their effect would have been antidilutive. Additionally, the convertible senior notes were excluded from the computation of diluted earnings per share for the 2012 periods because their effect would have been antidilutive.

	Three Months Ended March 31,				Six Months Ended March 31,
	2013		2012		2013		2012
	(In millions)
Numerator:
Net income	$	111.0	$	40.6	$	177.3	$	68.3
Effect of dilutive securities:
Interest expense and amortization of issuance costs associated with convertible senior notes, net of tax	5.8		—		11.5		—
Numerator for diluted earnings per share after assumed conversions	$	116.8	$	40.6	$	188.8	$	68.3
Denominator:
Denominator for basic earnings per share — weighted average common shares	321.7		317.6		321.4		317.0
Effect of dilutive securities:
Employee stock awards	5.1		2.5		4.7		1.3
Convertible senior notes	38.6		—		38.6		—
Denominator for diluted earnings per share — adjusted weighted average common shares	365.4		320.1		364.7		318.3