Employee Benefit Plans (Tables)

12 Months Ended

Sep. 30, 2013

Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block]



Grant Date	Vesting Date	Target Number of Performance Units	Grant Date Fair Value per Unit		Liability at September 30,				Compensation Expense Year Ended September 30,
Grant Date	Vesting Date	Target Number of Performance Units	Grant Date Fair Value per Unit		2013		2012		2013		2012		2011
					(In millions)				(In millions)
November 2010	September 2013	300,000	$	12.69	$	9.5	$	6.7	$	2.8	$	5.7	$	1.0
November 2011	September 2014	350,000	11.79		7.4		4.1		3.3		4.1		—
November 2012	September 2015	350,000	22.15		2.7		—		2.7		—		—
					$	19.6	$	10.8	$	8.8	$	9.8	$	1.0

Summarized information related to activity under the Company's Stock Incentive Plan

The following table provides additional information related to stock option activity under the Company’s Stock Incentive Plan.



	Year Ended September 30,
	2013				2012				2011
	Stock Options		Weighted Average Exercise Price		Stock Options		Weighted Average Exercise Price		Stock Options		Weighted Average Exercise Price
Outstanding at beginning of year	17,580,031		$	14.24	22,705,963		$	13.63	17,658,872		$	14.87
Granted	3,676,000		23.80		—		—		6,172,500		9.97
Exercised	(1,785,412	)	16.00		(4,493,797	)	11.13		(303,535	)	8.36
Canceled or expired	(508,083	)	14.66		(632,135	)	14.46		(821,874	)	14.92
Outstanding at end of year	18,962,536		$	15.91	17,580,031		$	14.24	22,705,963		$	13.63
Exercisable at end of year	6,626,337		$	16.83	5,815,913		$	18.55	7,540,704		$	16.53

Weighted average assumptions of stock options

The fair values of the options granted were estimated on the date of their grant using the Black-Scholes option pricing model based on the following weighted average assumptions:



	Year Ended September 30,
	2013	2012	2011
Risk free interest rate	1.13%	—	1.26%
Expected life (in years)	6.46	—	6.46
Expected volatility	49.30%	—	46.40%
Expected dividend yield	0.63%	—	1.50%