XML 82 R49.htm IDEA: XBRL DOCUMENT v2.4.0.8
Other Long-Term Liabilities (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2013
Sep. 30, 2013
Other Long-Term Liabilities    
Interest rate swap liabilities $ 1,060 $ 1,199
Environmental agreements liability 165 190
EnergyRight® purchase obligation 149 149
Membership interests of VIE subject to mandatory redemption 38 38
Coal contract derivative liabilities 44 35
Commodity swap derivative liabilities 29 36
Currency swap liabilities 12 15
Other 223 199
Total other long-term liabilities 1,720 1,861
Energy Right Program
    
Other Long-Term Liabilities    
Number of days in default 180 days  
EnergyRight obligation 186 186
Accounts Payable and Accrued Liabilities [Member] | Energy Right Program
    
Other Long-Term Liabilities    
EnergyRight obligation $ 37 $ 37