XML 60 R49.htm IDEA: XBRL DOCUMENT v3.10.0.1
Contingencies (Tables)
 3 Months Ended
Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]  
Summary of environmental reserves
The following are the components of the Superfund and non-Superfund environmental reserves (in millions):
 
Superfund Sites
 
Non-Superfund Sites
 
Total
Beginning Balance at September 30, 2018
$
12

 
$
5

 
$
17

Payments and other
(1
)
 
—

 
(1
)
Accruals
—

 
—

 
—

Ending Balance at December 31, 2018
$
11

 
$
5

 
$
16