SHAREOWNERS' EQUITY (Narrative) (Details) - USD ($)		12 Months Ended
	Jun. 11, 2015	Sep. 30, 2015	May. 18, 2015	Jan. 31, 2015	Sep. 30, 2014	Jun. 30, 2014
Class of Stock [Line Items]
Common stock, shares authorized		500,000,000
Common shares, par value		$ 1
Preferred stock, shares authorized		30,000,000
Common stock reserved for issuance under Long Term Incentive Plan		10,000,000
Common stock shares available for future grants under long-term incentive plan		3,700,000
Treasury stock, shares, acquired		4,200,000
Repurchase of common stock		$ 55,000,000
M2016 Strategy | Equity And Equity-Linked Securities, Including Convertible Debt Securities
Class of Stock [Line Items]
Stock repurchase, authorized amount						$ 210,000,000
Stock repurchase, authorized amount, regardless of performance					$ 40,000,000
Debt Securities
Class of Stock [Line Items]
Remaining authorized repurchase amount		$ 150,000,000
Repurchase program, authorized amount				$ 150,000,000
4.0 percent convertible notes due 2027
Class of Stock [Line Items]
Stated interest rate		4.00%			4.00%
4.0 percent convertible notes due 2027 | Convertible Notes
Class of Stock [Line Items]
Principal amount repurchased		$ 19,000,000
Stated interest rate		4.00%			4.00%
Remaining authorized repurchase amount		$ 136,000,000
7.875 percent convertible notes due 2026
Class of Stock [Line Items]
Stated interest rate		7.875%			7.875%
7.875 percent convertible notes due 2026 | Convertible Notes
Class of Stock [Line Items]
Stated interest rate		7.875%
Remaining authorized repurchase amount		$ 65,000,000
Repurchase program, authorized amount			$ 175,000,000
Repurchased amount of debt	$ 110,000,000	110,000,000
Repayments of convertible debt	$ 179,000,000	$ 179,000,000
Series A Junior Preferred Stock
Class of Stock [Line Items]
Preferred stock, shares authorized		2,000,000
Preferred stock, shares issued		0