Consolidated Statements of Total Equity (Parenthetical)	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012
Increase (Decrease) in Stockholders' Equity
Beginning Balances,shares	322,943,618
Issuances under employee benefit plans, shares	77,216	63,105	79,455
Exercise of stock options, shares	2,687,724	1,785,412	4,493,797
Debt Conversion, Converted Instrument, Shares Issued	38,589,451
Ending Balances, shares	364,586,694	322,943,618
Common Stock
Increase (Decrease) in Stockholders' Equity
Beginning Balances,shares	322,943,618	320,891,976	316,043,099
Issuances under employee benefit plans, shares	77,216	63,105	79,455
Exercise of stock options, shares	2,687,724	1,785,412	4,493,797
Issuance under Performance Unit Plan, shares	288,685	203,125	275,625
Ending Balances, shares	364,586,694	322,943,618	320,891,976