XML 59 R33.htm IDEA: XBRL DOCUMENT v3.6.0.2
Asset Retirement Obligations (Tables)
 3 Months Ended
Dec. 31, 2016
Asset Retirement Obligation Disclosure [Abstract]  
Asset Retirement Obligation Activity
Asset Retirement Obligation Activity
 
Nuclear
 
Non-Nuclear
 
Total
 
Balance at September 30, 2016
$
2,492

 
$
1,560

 
$
4,052

 
Settlements
—

 
(28
)
 
(28
)
 
Change in estimate
—

 
20

 
20

 
Accretion (recorded as regulatory asset)
29

 
8

 
37

 
Balance at December 31, 2016
$
2,521

 
$
1,560

 
$
4,081

(1 
) 

Note
(1) The current portion of ARO in the amount of $200 million and $212 million is included in Accounts payable and accrued liabilities at December 31, 2016, and September 30, 2016, respectively.