LONG-TERM DEBT (Revolving Credit Facility) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended		12 Months Ended			12 Months Ended		48 Months Ended
	Sep. 30, 2013 Revolving Credit Facility [Member]	Sep. 30, 2012 Revolving Credit Facility [Member]	Sep. 30, 2013 Revolving Credit Facility [Member] Amended Revolving Credit Facility [Member]	Sep. 30, 2013 Revolving Credit Facility [Member] Revolving Credit Facility - Amended - Matures In April 2017 [Member]	Sep. 30, 2013 Revolving Credit Facility [Member] Revolving Credit Facility - Amended - Matures In January 2014 [Member]	Sep. 30, 2013 Triggering Event One [Member] Revolving Credit Facility [Member]	Sep. 30, 2013 Triggering Event Two [Member] Revolving Credit Facility [Member]	Sep. 30, 2017 Triggering Event Three [Member] Revolving Credit Facility [Member]	Sep. 30, 2013 LIBOR [Member] Revolving Credit Facility [Member]	Sep. 30, 2013 LIBOR [Member] Term Loan [Member]	Sep. 30, 2013 Prime Rate [Member] Revolving Credit Facility [Member] Overnight Revolving Credit Loans [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 429			$ 415	$ 14
Required Ratio of Total Priority Debt to EBITDA Through Period Ended						2.50	2.25	2.00
Actual Ratio Of Total Priority Debt To Ebitda At Period End	0.51
Maximum Collateral Test Value			1.0
Value Of Company Assets Collateralized			607
Debt Instrument, Basis Spread on Variable Rate									4.25%	4250000.00%	3.25%
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage	0.50%
Line of Credit Facility, Amount Outstanding	0	0
Maximum limit on issuance of letters of credit			100
Amount outstanding	$ 0	$ 1