COMMON STOCK (Tables)

12 Months Ended

Sep. 30, 2015

COMMON STOCK [Abstract]

Schedule of Stock-Based Compensation Cost

	Years Ended September 30
	2015			2014			2013
Total stock-based compensation cost (pre-tax)	$	25.0		$	18.0		$	13.5
Total income tax benefit		(7.5	)		(6.5	)		(4.9	)
Total stock-based compensation cost, net of tax	$	17.5		$	11.5		$	8.6

Schedule of Weighted Average Fair Value per Share of Stock Options and Related Valuation Assumptions

	Years Ended September 30
	2015			2014			2013
Weighted average fair value per share	$	12.83		$	11.91		$	7.91
Valuation assumptions:
Risk-free interest rate		1.6	%		1.3	%		0.6	%
Expected dividend yield		1.4	%		1.4	%		1.9	%
Expected volatility		35.0	%		36.1	%		40.2	%
Weighted average expected life		4.9 years			4.9 years			4.9 years

Schedule of Transactions under Stock Option Plans

	Weighted					Weighted
	Average			Weighted		Average		Aggregate
	Number of			Average		Remaining		Intrinsic
	Shares			Exercise		Contractual		Value (1)
	(in thousands)			Price		Term		(in millions)
Balance Outstanding at October 1, 2014		1,992		$	31.99
Granted		381			45.01
Exercised		(371	)		31.83
Cancelled/Forfeited		(101	)		36.63
Balance Outstanding at September 30, 2015		1,901		$	34.38		6.6 years	$	33.5
Exercisable at September 30, 2015		1,060		$	30.98		5.3 years	$	22.3
Options Expected to Vest		773		$	38.34		8.0 years	$	10.6

(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.

Schedule of Transactions for Nonvested RSUs

				Weighted
	Number of			Average
	Share Units			Grant Date
	(in thousands)			Fair Value
Nonvested RSUs at October 1, 2014		431		$	34.92
Granted		351			47.85
Vested		(93	)		37.76
Forfeited		(55	)		35.90
Nonvested RSUs at September 30, 2015		634		$	41.35

Schedule of Weighted Average Fair Value per Share of PSUs and Related Valuation Assumptions

	Years Ended September 30
		2015			2014			2013
Weighted average fair value per share		$	47.82		$	47.91		$	19.77
Valuation assumptions:
Risk-free interest rate			0.9	%		0.5	%		0.3	%
Expected dividend yield			0.0	%		0.0	%		0.0	%
Expected volatility			23.5	%		30.1	%		32.6	%

Schedule of Transactions for Nonvested PSUs

				Weighted
	Number of			Average
	Share Units			Grant Date
	(in thousands)			Fair Value
Nonvested PSUs as of October 1, 2014		586		$	29.98
Granted		331			49.27
Vested		(414	)		30.11
Cancelled		(76	)		24.57
Forfeited		(73	)		41.15
Nonvested PSUs at September 30, 2015		354		$	42.16