Other Assets (Tables)
 6 Months Ended
Mar. 31, 2015
Other Assets, Noncurrent [Abstract]  
Summary of other assets
Other assets are summarized as follows (in millions):
 
March 31,
2015
 
September 30,
2014
Investments in non-consolidated joint ventures
$
101

 
$
106

Asbestos-related recoveries (see Note 19)
42

 
45

Unamortized debt issuance costs
27

 
30

Capitalized software costs, net
26

 
25

Non-current deferred income tax assets, net
17

 
15

Assets for uncertain tax positions
5

 
5

Prepaid pension costs
109

 
104

Other
17

 
25

Other assets
$
344

 
$
355