Earnings Per Share (Tables)

12 Months Ended

Sep. 30, 2013

Earnings Per Share [Abstract]

Earnings Per Share

The following table reconciles the numerators and denominators used to calculate basic and diluted earnings per share (in millions):

	Year Ended September 30,
	2013		2012		2011
Income Available to Common Shareholders
Basic income available to common shareholders	$	1,178	$	1,184	$	1,415
Interest expense, net of tax	—		1		3
Diluted income available to common shareholders	$	1,178	$	1,185	$	1,418
Weighted Average Shares Outstanding
Basic weighted average shares outstanding	683.7		681.5		677.7
Effect of dilutive securities:
Stock options and unvested restricted stock	5.5		5.2		8.1
Equity units	—		1.9		4.1
Diluted weighted average shares outstanding	689.2		688.6		689.9
Antidilutive Securities
Options to purchase common shares	0.8		1.4		0.3