Consolidated Statements of Total Equity (Parenthetical) - $ / shares	12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2018
Increase (Decrease) in Stockholders' Equity
Beginning Balances,shares	368,431,454
Common Stock, Dividends, Per Share, Cash Paid	$ 0.70	$ 0.60	$ 0.50
Ending Balances, shares	363,999,982	368,431,454
Common Stock
Increase (Decrease) in Stockholders' Equity
Beginning Balances,shares	368,431,454	376,261,635	374,986,079
Exercise of stock options, shares	959,742	2,634,802	2,547,139
Issuances under employee incentive plans, shares	1,608,786	1,417,776	1,536,954
Treasury Stock, Shares, Acquired	(7,000,000)	(11,882,759)	(2,808,537)
Ending Balances, shares	363,999,982	368,431,454	376,261,635