XML 39 R56.htm IDEA: XBRL DOCUMENT v2.4.0.6

Leaseback Obligations (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Sep. 30, 2003	Jun. 30, 2012	Sep. 30, 2011
Leaseback Obligations
Proceeds prior to 2004	$ 945
Number of new peaking combustion turbine units	24
Proceeds in 2003	389
CT/QTE outstanding leaseback obligation		827	885
SSSL undivided interest		90.00%
Southaven leaseback obligation		$ 383	$ 397
Basis points if TVA's rating is AAA		62.5
Basis points if TVA's rating is AA		87.5

X

- Definition

The basis points added to LIBOR that establish the rate at which Seven States will pay interest at if TVA's corporate credit rating is AA+.

+ References

No definition available.

+ Details

Name:	tve_BasisPointsIfTvasRatingIsAa
Namespace Prefix:	tve_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The basis points added to LIBOR that establish the rate at which Seven States will pay interest at if TVA's corporate credit rating is AAA.

+ References

No definition available.

+ Details

Name:	tve_BasisPointsIfTvasRatingIsAaa
Namespace Prefix:	tve_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The outstanding leaseback obligations related to combustion turbine units and qualified technological equipment and software.

+ References

No definition available.

+ Details

Name:	tve_CtqteOutstandingLeasebackObligation
Namespace Prefix:	tve_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Prior to 2004 TVA entered into a leaseback transaction involving new peaking combustine turbine units.

+ References

No definition available.

+ Details

Name:	tve_LeasebackTransactionNumberOfUnits
Namespace Prefix:	tve_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Proceeds TVA received from entering into a leaseback transaction for qualified technological equipment and software in 2003.

+ References

No definition available.

+ Details

Name:	tve_ProceedsIn2003
Namespace Prefix:	tve_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Proceeds TVA received prior to 2004 by entering into leaseback transactions for 24 new peaking combustion turbine units.

+ References

No definition available.

+ Details

Name:	tve_ProceedsPriorTo2004
Namespace Prefix:	tve_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The outstanding leaseback obligations related to Seven States.

+ References

No definition available.

+ Details

Name:	tve_SevenStatesLeasebackObligation
Namespace Prefix:	tve_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

SSSL's ownership interest in the combined cycle combustion turbine facility in Southhaven, Mississippi.

+ References

No definition available.

+ Details

Name:	tve_SsslsOwnershipInterest
Namespace Prefix:	tve_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	us-gaap_SaleLeasebackTransactionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration