XML 81 R60.htm IDEA: XBRL DOCUMENT v2.4.1.9
Risk Management Activities and Derivative Transactions Currency Swaps Outstanding (Details) (GBP £)
In Millions, unless otherwise specified
 3 Months Ended
Dec. 31, 2014
1999 Currency Swap Contract  
Derivative  
Effective Date of Currency Swap Contract 1999
Associated TVA bond issues currency exposure £ 200tve_AssociatedBondIssuesCurrencyExposure
/ us-gaap_DerivativeByNatureAxis
= tve_A1999CurrencySwapContractMember
Expiration Date of Swap 2021
Overall effective cost to TVA 5.81%us-gaap_DerivativeFixedInterestRate
/ us-gaap_DerivativeByNatureAxis
= tve_A1999CurrencySwapContractMember
2001 Currency Swap Contract  
Derivative  
Effective Date of Currency Swap Contract 2001
Associated TVA bond issues currency exposure 250tve_AssociatedBondIssuesCurrencyExposure
/ us-gaap_DerivativeByNatureAxis
= tve_A2001CurrencySwapContractMember
Expiration Date of Swap 2032
Overall effective cost to TVA 6.59%us-gaap_DerivativeFixedInterestRate
/ us-gaap_DerivativeByNatureAxis
= tve_A2001CurrencySwapContractMember
2003 Currency Swap Contract  
Derivative  
Effective Date of Currency Swap Contract 2003
Associated TVA bond issues currency exposure £ 150tve_AssociatedBondIssuesCurrencyExposure
/ us-gaap_DerivativeByNatureAxis
= tve_A2003CurrencySwapContractMember
Expiration Date of Swap 2043
Overall effective cost to TVA 4.96%us-gaap_DerivativeFixedInterestRate
/ us-gaap_DerivativeByNatureAxis
= tve_A2003CurrencySwapContractMember