Stockholders' Equity (Summary of Activity for Stock Option Awards) (Details) - Stock Options [Member] shares in Thousands	12 Months Ended
	Sep. 30, 2023 $ / shares shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of options, beginning balance | shares	5,339
Options granted, Number of options | shares	537
Options exercised, Number of options | shares	(1,007)
Options forfeited, Number of options | shares	(27)
Number of options, ending balance | shares	4,842
Weighted Average Exercise Price Per Share, beginning balance | $ / shares	$ 74.40
Options granted, Weighted Average Exercise Price Per Share | $ / shares	84.84
Options exercised, Weighted Average Exercise Price Per Share | $ / shares	50.18
Options forfeited, Weighted Average Exercise Price Per Share | $ / shares	94.01
Weighted Average Exercise Price Per Share, ending balance | $ / shares	$ 80.48