STOCK-BASED COMPENSATION - Options (Details) shares in Thousands	12 Months Ended
	Sep. 30, 2016 $ / shares shares
Information about outstanding and exercisable stock options
Exercise price, low end of range (in dollars per share)	$ 21.065
Exercise price, high end of range (in dollars per share)	$ 79.67
Outstanding Stock Options, Options at the end of the period (in shares) | shares	3,312
Outstanding Stock Options, Weighted-Average Remaining Life	5 years 8 months 12 days
Outstanding Stock Options, Weighted-Average Exercise Price (in dollars per share)	$ 51.74
Exercisable Stock Options, Options at the end of the period (in shares) | shares	2,225
Exercisable Stock Options, Weighted-Average Exercise Price (in dollars per share)	$ 46.66
Range of Exercise Prices from $21.065 to $38.015
Information about outstanding and exercisable stock options
Exercise price, low end of range (in dollars per share)	21.065
Exercise price, high end of range (in dollars per share)	$ 38.015
Outstanding Stock Options, Options at the end of the period (in shares) | shares	1,000
Outstanding Stock Options, Weighted-Average Remaining Life	1 year 10 months 24 days
Outstanding Stock Options, Weighted-Average Exercise Price (in dollars per share)	$ 30.36
Exercisable Stock Options, Options at the end of the period (in shares) | shares	1,000
Exercisable Stock Options, Weighted-Average Exercise Price (in dollars per share)	$ 30.36
Range of Exercise Prices from $47.29 to $59.76
Information about outstanding and exercisable stock options
Exercise price, low end of range (in dollars per share)	47.290
Exercise price, high end of range (in dollars per share)	$ 59.76
Outstanding Stock Options, Options at the end of the period (in shares) | shares	1,679
Outstanding Stock Options, Weighted-Average Remaining Life	7 years 1 month 6 days
Outstanding Stock Options, Weighted-Average Exercise Price (in dollars per share)	$ 56.50
Exercisable Stock Options, Options at the end of the period (in shares) | shares	925
Exercisable Stock Options, Weighted-Average Exercise Price (in dollars per share)	$ 55.41
Range of Exercise Prices from $68.83 to $79.67
Information about outstanding and exercisable stock options
Exercise price, low end of range (in dollars per share)	68.83
Exercise price, high end of range (in dollars per share)	$ 79.67
Outstanding Stock Options, Options at the end of the period (in shares) | shares	633
Outstanding Stock Options, Weighted-Average Remaining Life	7 years 9 months 18 days
Outstanding Stock Options, Weighted-Average Exercise Price (in dollars per share)	$ 72.89
Exercisable Stock Options, Options at the end of the period (in shares) | shares	300
Exercisable Stock Options, Weighted-Average Exercise Price (in dollars per share)	$ 73.94