Earnings Per Share (Tables)

9 Months Ended

Jun. 30, 2011

Earnings Per Share (Tables) [Abstract]

Earnings Per Share

	Three Months Ended				Nine Months Ended
	June 30,				June 30,
	2011		2010		2011		2010
Income Available to Common Shareholders
Basic income available to common shareholders	$	357	$	418	$	1,086	$	1,042
Interest expense, net of tax		1		1		2		4
Diluted income available to common shareholders	$	358	$	419	$	1,088	$	1,046
Weighted Average Shares Outstanding
Basic weighted average shares outstanding		678.6		672.7		677.1		671.6
Effect of dilutive securities:
Stock options		8.7		6.2		8.6		6.1
Equity units		3.9		4.5		4.3		4.5
Convertible senior notes		—		0.1		—		0.1
Diluted weighted average shares outstanding		691.2		683.5		690.0		682.3
Antidilutive Securities
Options to purchase common shares		—		0.5		—		0.5