COMMON STOCK (Schedule of Transactions under Stock Option Plans) (Details) $ / shares in Units, shares in Thousands, $ in Millions	12 Months Ended
	Sep. 30, 2015 USD ($) $ / shares shares
Stock-Based Compensation
Closing stock price	$ 51.99
Stock Options [Member]
Weighted Average Number of Shares
Balance Outstanding at October 1, 2014 | shares	1,992
Granted | shares	381
Exercised | shares	(371)
Cancelled/Forfeited | shares	(101)
Balance Outstanding at September 30, 2015 | shares	1,901
Exercisable at September 30, 2015 | shares	1,060
Options Expected to Vest | shares	773
Weighted Average Exercise Price
Balance Outstanding at October 1, 2014	$ 31.99
Granted	45.01
Exercised	31.83
Cancelled/Forfeited	36.63
Balance Outstanding at September 30, 2015	34.38
Exercisable at September 30, 2015	30.98
Options Expected to Vest	$ 38.34
Weighted Average Remaining Contractual Term
Balance Outstanding at September 30, 2015	6 years 7 months 6 days
Exercisable at September 30, 2015	5 years 3 months 18 days
Options Expected to Vest	8 years
Aggregate Intrinsic Value
Balance Outstanding at September 30, 2015 | $	$ 33.5	[1]
Exercisable at September 30, 2015 | $	22.3	[1]
Options Expected to Vest | $	$ 10.6	[1]

[1] The aggregate intrinsic value represents the total pre-tax intrinsic value, based on our closing stock price of $51.99, as reported by the New York Stock Exchange on September 30, 2015. This amount, which changes continuously based on the fair value of our common stock, would have been received by the option holders had all option holders exercised their options as of the balance sheet date.