Supplemental Guarantor Condensed Consolidating Financial Statements (Details 3) (USD $)
In Millions, unless otherwise specified
6 Months Ended
Mar. 31, 2015
Mar. 31, 2014
CASH FLOWS PROVIDED BY (USED FOR) OPERATING ACTIVITIES $ 29 $ 18
INVESTING ACTIVITIES    
Capital expenditures (23) (25)
Net investing cash flows provided by discontinued operations 4 3
CASH USED FOR INVESTING ACTIVITIES (19) (22)
FINANCING ACTIVITIES    
Repayment of notes and term loan (16) (308)
Proceeds from debt issuance 0 225
Debt issuance costs 0 (9)
Repurchase of common stock (16) 0
Debt issuance costs 0 0
Other financing activities (6) 13
CASH USED FOR FINANCING ACTIVITIES (38) (79)
EFFECT OF CHANGES IN FOREIGN CURRENCY EXCHANGE RATES ON CASH AND CASH EQUIVALENTS (12) (2)
CHANGE IN CASH AND CASH EQUIVALENTS (40) (85)
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD 247 318
CASH AND CASH EQUIVALENTS AT END OF PERIOD 207 233
Parent    
CASH FLOWS PROVIDED BY (USED FOR) OPERATING ACTIVITIES 7 (30)
INVESTING ACTIVITIES    
Capital expenditures (1) (2)
Net investing cash flows provided by discontinued operations 0 0
CASH USED FOR INVESTING ACTIVITIES (1) (2)
FINANCING ACTIVITIES    
Repayment of notes and term loan (16) (308)
Proceeds from debt issuance   225
Debt issuance costs   (9)
Repurchase of common stock (16)  
Debt issuance costs 54 92
Other financing activities 0 0
CASH USED FOR FINANCING ACTIVITIES 22 0
EFFECT OF CHANGES IN FOREIGN CURRENCY EXCHANGE RATES ON CASH AND CASH EQUIVALENTS 0 0
CHANGE IN CASH AND CASH EQUIVALENTS 28 (32)
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD 71 144
CASH AND CASH EQUIVALENTS AT END OF PERIOD 99 112
Guarantors    
CASH FLOWS PROVIDED BY (USED FOR) OPERATING ACTIVITIES 10 8
INVESTING ACTIVITIES    
Capital expenditures (10) (11)
Net investing cash flows provided by discontinued operations 1 0
CASH USED FOR INVESTING ACTIVITIES (9) (11)
FINANCING ACTIVITIES    
Repayment of notes and term loan 0 0
Proceeds from debt issuance   0
Debt issuance costs   0
Debt issuance costs 0 0
Other financing activities (2) 0
CASH USED FOR FINANCING ACTIVITIES (2) 0
EFFECT OF CHANGES IN FOREIGN CURRENCY EXCHANGE RATES ON CASH AND CASH EQUIVALENTS 0 0
CHANGE IN CASH AND CASH EQUIVALENTS (1) (3)
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD 5 6
CASH AND CASH EQUIVALENTS AT END OF PERIOD 4 3
Non-Guarantors    
CASH FLOWS PROVIDED BY (USED FOR) OPERATING ACTIVITIES 12 40
INVESTING ACTIVITIES    
Capital expenditures (12) (12)
Net investing cash flows provided by discontinued operations 3 3
CASH USED FOR INVESTING ACTIVITIES (9) (9)
FINANCING ACTIVITIES    
Repayment of notes and term loan 0 0
Proceeds from debt issuance   0
Debt issuance costs   0
Debt issuance costs (54) (92)
Other financing activities (4) 13
CASH USED FOR FINANCING ACTIVITIES (58) (79)
EFFECT OF CHANGES IN FOREIGN CURRENCY EXCHANGE RATES ON CASH AND CASH EQUIVALENTS (12) (2)
CHANGE IN CASH AND CASH EQUIVALENTS (67) (50)
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD 171 168
CASH AND CASH EQUIVALENTS AT END OF PERIOD 104 118
Elims    
CASH FLOWS PROVIDED BY (USED FOR) OPERATING ACTIVITIES 0 0
INVESTING ACTIVITIES    
Capital expenditures 0 0
Net investing cash flows provided by discontinued operations 0 0
CASH USED FOR INVESTING ACTIVITIES 0 0
FINANCING ACTIVITIES    
Repayment of notes and term loan 0 0
Proceeds from debt issuance   0
Debt issuance costs   0
Debt issuance costs 0 0
Other financing activities 0 0
CASH USED FOR FINANCING ACTIVITIES 0 0
EFFECT OF CHANGES IN FOREIGN CURRENCY EXCHANGE RATES ON CASH AND CASH EQUIVALENTS 0 0
CHANGE IN CASH AND CASH EQUIVALENTS 0 0
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD 0 0
CASH AND CASH EQUIVALENTS AT END OF PERIOD $ 0 $ 0