XML 77 R48.htm IDEA: XBRL DOCUMENT v3.5.0.2
Debt and Other Obligations Debt Outstanding (Details) - USD ($)
$ in Millions
 9 Months Ended 12 Months Ended
Jun. 30, 2016
Sep. 30, 2015
Short-term debt    
Short-term debt, net $ 1,542 $ 1,034
Current maturities of power bonds 555 32
Current maturities of long-term debt of variable interest entities 34 33
Total current debt outstanding, net 2,131 1,099
Long-term debt    
Long-term power bonds [1] 22,125 22,792
Long-term debt of variable interest entities 1,229 1,246
Unamortized discounts, premiums, issues costs, and other (177) (188)
Total long-term debt, net 23,177 23,850
Total outstanding debt 25,308 24,949
Net exchange gain from currency transactions $ 130 $ 21
[1] Includes net exchange gain from currency transactions of $130 million at June 30, 2016, and $21 million at September 30, 2015.