Impairment of Long-Lived Assets (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended					12 Months Ended
	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Sep. 30, 2012	Jun. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Finite-Lived Intangible Assets [Line Items]
Impairment of long-lived assets	$ 107	$ 36	$ 13	$ 36	$ 3	$ 156	$ 39
Corporate
Finite-Lived Intangible Assets [Line Items]
Impairment of long-lived assets						12	10
Automotive Experience | Interiors
Finite-Lived Intangible Assets [Line Items]
Impairment of long-lived assets						57	11
Automotive Experience | Seating
Finite-Lived Intangible Assets [Line Items]
Impairment of long-lived assets						22
Power Solutions
Finite-Lived Intangible Assets [Line Items]
Impairment of long-lived assets						18	14
Building Efficiency
Finite-Lived Intangible Assets [Line Items]
Impairment of long-lived assets						7
Building Efficiency | Building Efficiency Other
Finite-Lived Intangible Assets [Line Items]
Impairment of long-lived assets						$ 40	$ 4