Stock-Based Compensation (Tables)

12 Months Ended

Sep. 30, 2011

Stock-Based Compensation [Abstract]

Assumptions used in Black-Scholes option valuation model

	Year Ended September 30,
	2011	2010	2009
Expected life of option (years)	4.5 - 6.0	4.3 - 5.0	4.2 - 4.5
Risk-free interest rate	1.10% - 1.58%	1.91% - 2.20%	2.57% - 2.68%
Expected volatility of the Company’s stock	38.00%	40.00%	28.00%
Expected dividend yield on the Company’s stock	1.74%	1.73%	1.52%

Summary of stock option activity

						Weighted
						Average		Aggregate
	Weighted		Shares			Remaining		Intrinsic
	Average		Subject to			Contractual		Value
	Option Price		Option			Life (years)		(in millions)
Outstanding, September 30, 2010	$	24.17		35,158,109
Granted		30.64		4,994,156
Exercised		19.15		(5,522,620	)
Forfeited or expired		29.17		(405,633	)
Outstanding, September 30, 2011	$	25.87		34,224,012			5.7	$	91
Exercisable, September 30, 2011	$	24.79		22,401,363			4.3	$	83

Assumptions used in Black-Scholes stock appreciation rights valuation model

Expected life of SAR (years)	0.5 - 5.2
Risk-free interest rate	0.06% - 1.01%
Expected volatility of the Company’s stock	38.00%
Expected dividend yield on the Company’s stock	1.80%

Summary of stock appreciation rights activity

						Weighted
						Average		Aggregate
	Weighted		Shares			Remaining		Intrinsic
	Average		Subject to			Contractual		Value
	SAR Price		SAR			Life (years)		(in millions)
Outstanding, September 30, 2010	$	25.23		3,237,113
Granted		30.54		585,190
Exercised		22.91		(290,973	)
Forfeited or expired		29.28		(67,355	)
Outstanding, September 30, 2011	$	26.24		3,463,975			6.0	$	8
Exercisable, September 30, 2011	$	25.16		2,032,304			4.4	$	7

Summary of nonvested restricted stock awards

	Weighted		Shares/Units
	Average		Subject to
	Price		Restriction
Nonvested, September 30, 2010	$	31.60		765,455
Granted		35.02		331,700
Vested		25.57		(32,750	)
Nonvested, September 30, 2011	$	32.85		1,064,405